DE102015215717A1 - pressure unit - Google Patents

Abstract

The invention relates to a printing unit, wherein the printing aggregate has at least two printing heads arranged one after the other in a transport direction provided by a transport path for transporting printing material, and wherein the printing unit has at least three tread surfaces, each of which is designed to be movable at least between a respective tread position and a respective access position and wherein each of the at least three treads in their respective tread position is at least partially disposed vertically above at least one of the printing heads of the printing unit and wherein each of the at least three treads has a width corresponding to at least 60% of a working width of the printing unit and / or the at least 40 cm.

Description

The invention relates to a printing unit.

Printing presses use different printing methods. Non-impact printing processes (NIP = non-impact printing) are understood to mean printing processes which do not require a fixed, that is physically immutable, printing form. Such printing methods can produce different print images in each printing process. Examples of non-impact printing processes are ionographic processes, magnetographic processes, thermographic processes, and in particular inkjet printing processes or ink-jet printing processes. Such printing methods usually have at least one image-forming device, for example at least one print head. In the case of the inkjet printing method, such a printhead is designed, for example, as an inkjet printhead and has at least one and preferably several nozzles, by means of which specifically at least one printing fluid, for example in the form of ink drops, can be transferred to a printing material. The printing material should have as constant a distance as possible from the image-producing device, on the one hand in order to be able to coordinate the image formation in time and, on the other hand, to avoid damage to the image-forming device.

For example, in the inkjet printing process, in particular in connection with water-based ink, it may happen that deforms the substrate, such as waves beats. On the one hand, such waves can entail the risk of damage to both the printheads and the printing material and, on the other hand, they can lead to poor print quality, for example because of different times of flight of drops of pressurized fluid.

By the DE 10 2013 208 754 A1 a printing unit is known which has movable printheads.

By the GB 2 357 996 A is a suction of air in connection with ink jet printing known.

The invention has for its object to provide a printing unit.

The object is achieved by the features of claim 1.

A printing press has at least one printing unit. Preferably, the printing unit has at least one intended for a transport of particular web-shaped substrate transport path through which at least one transport direction is fixed. The printing unit preferably has at least two, and more preferably even more, printing heads, in particular ink-jet printheads, arranged successively in relation to the transport direction determined by the transport path provided for transporting, in particular, web-shaped printing material. Preferably, the printing unit has at least one protective cover, which is designed to be movable between at least one respective covering position and at least one respective access position. The at least one protective cover preferably has at least one tread surface which is designed, in particular, to be entered by at least one operator and / or is movable together with the at least one protective cover. The at least one tread surface of the at least one protective cover is preferably arranged at least partially in the vertical direction over at least one protective cover over at least one of the print heads of the printing unit and more preferably on a side of the at least one protective cover facing away from the at least one print head.

In the case of a curved transport path, the transport direction is preferably in each case that direction which runs tangentially to a section and / or point of the intended transport path which are closest to a respective reference point. This respective reference point is preferably at the point and / or on the component which is related to the transport direction.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least three tread surfaces formed by at least one operator and / or movable together with the at least one protective cover, each of which is movable at least between a respective tread position and a respective access position are. Preferably, the at least one and more preferably each of the at least three treads in their respective tread position is arranged at least partially in the vertical direction over at least one of the print heads of the printing unit and more preferably on a side of the at least one protective cover facing away from the at least one print head. Preferably, the at least one and more preferably each of the at least three tread surfaces has a width which corresponds to at least 60% of a working width of the printing unit and / or which is at least 40 cm.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the intended transport path in one direction with at least one vertically pointing upwards Component is arranged opposite a extending in the transport direction sequence of functional units. Within this sequence of functional units in the transport direction, at least one first gas supply opening and then at least one first section of a shielding device penetrated by printhead recesses and then at least one first gas exhaust opening and then at least one flow shield and then at least one second gas supply opening and thereafter at least one of

Printhead recesses interspersed second portion of the shielding and then at least a second Gasabsaugöffnung is arranged.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least one suction box. The at least one suction box preferably has at least one inlet opening which at least partially faces the transport path provided for the printing material. The at least one suction box preferably has at least one outlet opening, which is connected in particular to a respective connection opening of a suction line by a sealing connection sealed by means of a sealing element designed in particular as a sealing ring, which is in turn preferably connected to a suction device. The at least one suction box is preferably removable from the suction line and / or from the pressure unit in a non-destructive manner, in particular while maintaining the installation position of the suction line and / or in a withdrawal direction.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least two and more preferably at least three suction boxes which have respective inlet openings which at least partially point to the transport path provided for the printing material. Preferably, the at least two and more preferably at least three suction boxes are each connected to flow connections with the same common suction line. Preferably, the inlet openings of the at least two and more preferably at least three suction boxes extend together over an inlet length in a transverse direction which corresponds to at least 80% of the working width of the printing unit. The inlet opening preferably extends in a transverse direction. The transverse direction is preferably orthogonal to each transport direction determined by the transport path provided for the printing substrate and oriented horizontally.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least one frame with at least two side walls. Preferably, the transport path provided for the transport of in particular web-shaped printing material runs at least partially between these side walls. Preferably, the printing unit has at least one cross member, which extends at least in the transverse direction between the side walls and which is further preferably connected to both of the two side walls of the frame, in particular rigidly connected. More preferably, the printing unit has at least two, more preferably at least three, even more preferably at least four, even more preferably at least five, even more preferably at least six, even more preferably at least seven and even more preferably at least thirteen traverses, each at least extending in the transverse direction between the side walls and further preferably each connected to both of the two side walls of the frame, in particular rigidly connected. Preferably, the printing unit has at least one preferably by means of at least one Abstellantriebs linear and at least relative to the frame in at least one Abstellrichtung movable support body which extends at least in the transverse direction between the side walls and in particular from one side wall to another side wall. The storage direction preferably has at least one vertically upwardly facing component.

Preferably, at least one print head is arranged on the at least one support body and can be moved together with the at least one support body. At least one first contact point arranged on the at least one support body and at least one second contact point arranged on the at least one crosspiece preferably form at least one first contact point pair which opposes one another in the depositing direction and is in contact with one another and / or can be brought. Preferably, at least one third contact point arranged on the at least one support body and at least one fourth contact point arranged on the at least one crossbar and, for example, on another at least two crossbars form at least a second contact point pair at least temporarily, at least also in a direction orthogonal to the stop direction is opposite to the transverse direction orthogonal support direction and is in contact with each other and / or can be brought.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least two spaced apart in the transport direction trusses, each extending from one of the side walls to another of the side walls, each of the at least two trusses at least a first cross member and at least one of them Having spaced second cross member which define at least one interior of the respective cross member at least partially in and against the transport direction together. In the respective at least one interior, at least one component of a gas transport device and / or at least one additional device for supplying at least one print head with energy and / or supplies and / or pressure fluid and / or data and / or at least one gas and / or at least one inner one is preferred Additional device arranged for cleaning and / or maintenance and / or covering at least one printhead. In particular, the at least one suction box is a component of the gas transport device.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least three spaced apart in the transport direction trusses, each extending at least in a transverse direction between the side walls, wherein the printing unit at least three or more preferably even more with respect to the transport direction at least one first auxiliary device is arranged on each of the at least three trusses, which is associated with at least one arranged in the transport direction in front of each of the at least three trusses front printhead and / or preferably at least one of the at least three trusses at least one second auxiliary device is arranged, which is associated with at least one arranged in the transport direction behind this respective one of the at least three traverse rear print head.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one printing unit has at least two imaging devices designed in particular as print heads. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one printing unit has at least one ink jet print head and more preferably at least two ink jet print heads. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one printing unit has at least two inkjet printheads, each of which defines application locations for printing fluid, and that at least two stationary guide elements of the at least one printing unit define a transport path for the printing material provided by the printing unit and in that a printing section of the transport path provided for the printing material begins at a first application point of the printing unit along this provided transport path and ends at a last application point of the printing unit along this provided transport path. For example, along the pressure section of this provided transport path at least five fixed, the intended transport path with defining guide elements are arranged one behind the other.

Preferably, the printing unit is characterized in that along the printing section of this proposed transport path at least two, preferably at least five, more preferably at least eight, even more preferably at least ten, even more preferably at least fourteen and even more preferably at least twenty eight fixed, with the intended transport defining guide elements are arranged one behind the other. This results in particular the advantage that a particularly large number of printheads and thus a high printing speed and high print quality can be realized. A fixed guide element is to be understood in particular as meaning a guide element which is arranged immovably and / or stationary in a printing operation and / or which is neither rotatable by its own drive nor by contact with printing material and / or with respect to rotational movements and / or Rotary movements and / or pivotal movements to the transport direction of the transport material provided for transport path orthogonal axes is provided at most pivotal movements together with other vanes to at least one common pivot axis. In particular, the at least one printing aggregate is preferably characterized in that preferably the at least two and more preferably the at least five, in particular fixed, guide elements are rotationally or pivotally movable about axes other than at least one common pivot axis. Preferably, the fixed guide elements are in particular mutually fixed guide elements.

Preferably, the printing unit is characterized alternatively or additionally by the fact that these at least two and preferably at least five provided transport path in the region of the printing section with defining guide elements about at least one common pivot axis are pivotally mounted, in particular around these at least two and preferably at least five vanes between to move a respective working position and a respective maintenance position. Preferably, these at least two and preferably at least five of these provided transport path in the region of the printing section with defining guide elements by means of at least one pivot drive and / or in at least one common movement and / or arranged relative to the at least two printheads about the at least one common pivot axis pivotally. This results in particular the advantage that a maintenance room in particular for cleaning a shielding and / or the guide elements can be created. Preferably, the printing aggregate is characterized alternatively or additionally by the fact that these at least two and more preferably at least five guide elements are arranged pivotally about the at least one common pivot axis, at least 10 °, more preferably at least 20 ° and even more preferably at least 30 °.

Preferably, the printing unit is characterized alternatively or additionally by the fact that a main conveying direction determined by a straight-line connection between a first guide element provided on the printing section of the transport path provided for the printing substrate and a main conveying direction fixed to the printing section of the transport path provided for the printing substrate are oriented orthogonal to the transverse direction is and that the main conveying direction is arranged at arranged in its maintenance position vanes at an angle of at most 30 °, more preferably at most 20 ° and even more preferably at most 10 ° to a vertical direction. This results in particular the advantage that the maintenance room is particularly large and the vanes are particularly accessible in their maintenance position. In particular, large printing substrate widths or working widths of the printing unit can thus be realized.

Preferably, the printing unit is characterized alternatively or additionally by the fact that provided for printing material along the printing section is curved exclusively in one direction, in particular down and / or convex relative to the printed in the at least one printing unit side of the printing substrate. A downward curvature is not inconsistent with an upwardly extending transport path, but means, for example, a continuous or gradually flattening in the course of the transport path increase. Preferably, the printing unit is characterized alternatively or additionally by the fact that the transport path provided for the printing material is limited along the printing section exclusively on exactly one side of components of the printing unit and / or contacted and / or tangent thereto.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least two print heads each have a plurality of nozzles and that more preferably each print head at least one nozzle has a target area, at least and more preferably exactly one of at least two and more preferably at least five preferably fixed guide elements cuts. This is preferably true in particular in each case in its printing position arranged respective print head and in each case in its working position arranged respective guide element. This preferably applies alternatively or additionally for several or more preferably all nozzles of the respective print head. This results in particular the advantage that the printing fluid is applied to the substrate in a range in which it is particularly flat, because it is pulled by the deflection angle against the corresponding guide element.

Preferably, the printing unit is characterized alternatively or additionally by the fact that at least two of these provided transport path in the region of the printing section with defining guide elements at three spaced apart in the transverse direction, preferably formed as support areas bodies with a total of at least two lateral support elements and at least one inner support member is in contact and thereby fixed in its position. Further preferably, the printing unit is characterized alternatively or additionally by several or even more preferably all of the at least two and preferably at least five provided transport path in the region of the printing section with defining guide elements at three spaced apart in the transverse direction, preferably designed as bearing areas with points a total of at least two lateral support elements and at least one inner support element are in contact and thereby fixed in their position, wherein preferably the plurality or more preferably all the guide elements are each in contact with the same lateral and / or inner support elements. Preferably, the printing unit is characterized alternatively or additionally by the fact that at least one inner support element is in contact with the at least one guide element, whose position relative to the transverse direction is at least one nozzle of at least one print head of the printing unit matches.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least one in particular stationary frame or machine frame. For example, the printing unit has the at least one first, provided by at least two guide elements for substrates web and at least one movable relative to the frame, in particular pivotable support member and along this first provided transport path at least a first Bahnfixiereinrichtung for fixing a first portion of a Substrate web disposed relative to the first web fixing and / or relative to the frame. A fixation is to be understood in particular not merely a support against gravity, but a relative immobility, in particular with respect to any movement in any Direction. Preferably, the printing unit is characterized alternatively or additionally by the fact that along this first provided transport path and in particular after the at least one first Bahnfixiereinrichtung at least one connected to the at least one movable relative to the frame support member and at least together with this at least one movable relative to the frame Supporting element is also arranged relative to the frame movable second web fixing device for fixing a second portion of a printing substrate relative to the second web fixing device and / or relative to the at least one movable support member. Preferably, the at least one first web fixing device is arranged on the frame. A common movement of two objects is to be understood in particular as meaning a movement in which the centers of gravity of these objects move relative to another object, for example the one to the frame, but in which a distance between these pivot points remains the same.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least two provided for printing material transport path with guiding elements together with the at least one support member relative to the frame movable, in particular pivotally mounted, preferably on this at least one support element. The at least two guide elements are preferably relative to the at least one support element fixed guide elements. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one support element is pivotally arranged together with the at least one second Bahnfixiereinrichtung and / or together with the at least two vanes about the at least one common pivot axis, in particular by means of at least one common pivot drive and / or in a joint movement. Preferably, the at least one second web fixing device is arranged to be movable independently of the at least one first web fixing device. Preferably, the printing unit is characterized alternatively or additionally by the fact that the second web fixing device is movable in particular together with the at least two guide elements relative to the first web fixing device and that a distance between the at least one second web fixing device and the at least one first web fixing device is variable. Preferably, the printing unit is characterized alternatively or additionally by the fact that the at least one first web fixing device is arranged on the frame of the printing unit. Preferably, the printing unit is characterized alternatively or additionally by the fact that an optionally existing maximum displacement of the at least one first Bahnfixiereinrichtung is smaller than one-tenth of a maximum displacement of the at least one second Bahnfixiereinrichtung.

Preferably, the printing aggregate is characterized alternatively or additionally by the fact that the at least one second web fixing device can be arranged in particular together with the part of the second section of the at least one printing material web fixed thereto at different distances from the at least one imaging device, which is preferably designed as a print head.

Preferably, the printing unit is characterized alternatively or additionally by the fact that the printing unit has at least two imaging devices, are determined by the respective application points for printing fluid and that a printing section of the first provided for substrate transport path starts at a along this provided transport path first job of the printing unit and at a last application point of the printing unit ends along this intended transport path and that along the intended transport path the at least two provided transport path with defining guide elements are arranged one behind the other along the printing section of this first provided transport path.

Preferably, the printing unit is characterized alternatively or additionally by at least one separating device and / or at least one connecting device being arranged along the intended transport path between the at least one first web fixing device and the at least one second web fixing device. Preferably, the printing unit is characterized alternatively or additionally by the fact that the first section of the printing substrate and the second section of the printing material at least before a possible separation of a same substrate web belong.

The invention is preferably applicable to various non-impact printing processes, in particular for ionographic processes, magnetographic processes, thermographic processes and in particular inkjet printing processes or ink-jet printing processes. In the foregoing and hereinafter, for "inks" set out embodiments and variants - as far as no apparent contradiction - apply to any kind of flowable printing fluids, especially on colored or colorless paints, and on relief-forming materials such as pastes and by - only imaginary or actual - replacement of the term "printing ink" by the generalized term "printing fluid" or a special term "paint", "higher viscosity printing ink", " low-viscosity printing ink "or" ink ", or" paste "or" pasty material "to transfer.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a schematic representation of a transport path for substrate by a printing unit and a dryer;

2 a schematic representation of a deflection of a printing substrate on a guide element;

3 a schematic representation of a set of vanes, which are held by a common support frame;

4 a schematic representation of a portion of a printing section;

5a a schematic representation of a printing unit with vanes in a working position and printheads in a printing position;

5b a schematic representation of the printing unit according to 1 with guide elements in a working position and printheads in a parking position;

5c a schematic representation of the printing unit according to 1 with vanes in a maintenance position and printheads in a print position;

6a a schematic representation of a dryer unit of a printing machine, wherein an energy delivery device is arranged in an operative position;

6b a schematic representation of a schematic representation of a dryer unit of a printing machine, wherein an energy delivery device is arranged in a parking position designed as an access position and wherein a substrate or at least its intended transport path is located;

6c a schematic representation of a schematic representation of a dryer unit of a printing machine, wherein an energy delivery device is arranged in a parking position designed as Einziehposition;

7a a schematic perspective view of a dryer unit of a printing machine, wherein an energy delivery device is arranged in an operative position;

7b a schematic perspective view of a dryer unit of a printing machine, wherein an energy delivery device is arranged in a parking position designed as Einziehposition;

8th a schematic representation of a printing machine with at least one printing unit;

9 a schematic representation of a printing unit with opened protective cover;

10 a schematic partial view of two trusses arranged thereon with additional devices;

11 a schematic representation of a support body obliquely from above;

12 a schematic sectional view through the support body according to 11 and adjacent trusses;

13 a schematic sectional view through the support body according to 11 and adjacent trusses;

14 a schematic sectional view through the support body according to 11 and adjacent trusses in the area of a closure holder;

15 a schematic sectional view through the support body according to 11 and adjacent trusses in the area of a support roller;

16 a schematic sectional view through the support body according to 11 and adjacent trusses in the area of a support stop;

17 a schematic representation of the support body according to 11 from below between two side walls and two trusses with hidden shielding;

18 a schematic representation according to 18 considered in a transport direction;

19 a schematic representation according to 18 from above;

20 a schematic representation of three suction boxes and a suction line to a first cross member;

21 a schematic representation of a suction box between two cross members of a crosshead;

22 a schematic partial representation of an end region of two trusses.

The term of a pressurized fluid in the foregoing and hereinafter ink and printing inks, but also paints and pasty materials are summarized. Preference is given to pressure-fluid materials passing through a printing press 01 or at least one printing aggregate 200 the printing press 01 on a substrate 02 be transmitted and / or transferable and preferably in finely structured form and / or not only over a large area a preferably visible and / or perceptible by sensory and / or machine detectable texture on the substrate 02 justify. Inks and printing inks are preferably solutions or dispersions of at least one colorant in at least one solvent. Suitable solvents include, for example, water and / or organic solvents. Alternatively or additionally, the pressure fluid may be formed as under UV light crosslinking pressure fluid. Inks are relatively low viscosity printing fluids and inks are relatively high viscosity printing fluids. Inks preferably have no binder or relatively little binder, while printing inks preferably contain a relatively large amount of binder and more preferably further auxiliaries. Colorants may be pigments and / or dyes, pigments being insoluble in the application medium, while dyes are soluble in the application medium.

For the sake of simplicity, the term "printing ink" in the sense of a liquid or at least free-flowing dyeing fluid to be printed in the printing press should be understood in the preceding and following - which does not only refer to the colloquial rather with the expression "Ink" brought in conjunction higher-viscosity dyeing fluid for use in rotary printing machines, but in addition to these higher viscosity dyeing fluids in particular also low-viscosity dyeing fluids such as "inks", especially inkjet inks, but also powdered dyeing fluids such. As toner includes. Thus, in the foregoing and hereinafter especially colorless paints are meant when talking of printing fluids and / or inks and / or printing inks. Preference is given in the following and in particular also means for a pretreatment (so-called precoating) of the printing substrate 02 meant when talking of printing fluids and / or inks and / or inks. As an alternative to the term pressurized fluid, the term coating agent is to be understood as synonymous.

As a printing press 01 Here is one at least a pressurized fluid on a substrate 02 to understand the application or machine capable of being applied. A printing press 01 preferably has at least one printing material source 100 , Preferably at least a first printing unit 200 Preferably, at least one first drying-promoting agent, ie first drying aid, is preferred 301 , z. B. a first dryer 301 , and preferably at least one post-processing device. The printing press 01 optionally has, for example, at least a second printing unit and, for example, at least a second drying-promoting agent, ie drying aids, for. B. on a second dryer. The printing press 01 is preferred as an inkjet printing machine 01 educated. The printing press is preferred 01 as a roll printing machine 01 formed, more preferably as a roller inkjet printing machine 01 , The printing press 01 can be used as a total or, if appropriate, other non-impact and / or printing form-based process - by inkjet or inkjet printing machine 01 be executed, in particular as an inkjet printing machine 01 , The at least one first printing unit 200 is preferred as at least a first ink jet printing unit 200 educated.

In the case of a roll printing press 01 is the source of printing material 100 as Rollenabspulvorrichtung 100 educated. In the substrate source 100 At least one printing material is preferred 02 aligned, preferably at least with respect to an edge of this substrate 02 , In the Rollenabspulvorrichtung 100 a roll printing machine 01 becomes at least one web-shaped substrate 02 So a printing material web 02 , preferably a paper web 02 from a substrate roll 101 unwound and preferably aligned with respect to their edges in an axial direction A. The axial direction A is preferably a direction A, which is parallel to a rotational axis of a Bedruckstoffrolle 101 extends in a transverse direction A. The transverse direction A is preferably a horizontally extending direction A. The transverse direction A is orthogonal to a for a transport of particular web-shaped substrate 02 provided transport direction and / or orthogonal to a designated transport path of the printing substrate 02 by the at least one first printing unit 200 oriented. The for a transport of the at least one printing substrate 02 intended transport path and in particular the printing material web 02 runs after the at least one printing material source 100 preferably by the at least one first printing unit 200 where the substrate 02 and in particular the printing material web 02 is preferably provided by means of at least one ink on one side with a printed image.

In the case of a curved transport path, the transport direction is preferably in each case that direction which is tangential to a section and / or point next to a respective reference point the intended transport path runs. This respective reference point is preferably at the point and / or on the component which is related to the transport direction.

In the following, the invention will be described with reference to an inkjet printing machine 01 described. However, the invention can also be used for other non-impact printing processes or completely different printing processes such as, for example, a rotary printing, offset printing, planographic printing, high-pressure, screen printing or intaglio printing, provided that this results in no contradictions. In the following, the invention will be described in connection with a web-shaped printing substrate 02 So a printing material web 02 described. Corresponding features are preferred but also on printing machines 01 for sheet-shaped substrate 02 applicable, provided that there are no contradictions.

In the Rollenabspulvorrichtung 100 is at least one substrate roll 101 rotatably arranged. In a preferred embodiment, the Rollenabspulvorrichtung 100 for receiving a substrate roll 101 designed suitable, so has only one storage position for a Bedruckstoffrolle 101 on. In another embodiment, the Rollenabspulvorrichtung 100 as a reel changer 100 formed and has storage positions for at least two Bedruckstoffrollen 101 on. The roll changer is preferred 100 designed so that it allows a flying role change, so connecting a first substrate web 02 a currently processed substrate roll 101 with a second substrate web 02 a substrate to be processed below 101 while both the currently processed substrate roll 101 , as well as the substrate to be processed below 101 rotate.

Preferably, the Rollenabspulvorrichtung 100 along the intended transport path of the printing material web 02 according to a roll holding device a preferably arranged on a dancer lever deflector dancer roller and / or a first Bahnkantenausrichter and / or one, formed by a tension roller and a Zugspresseur intake nip and designed as a first measuring roller, in particular feed measuring roller first measuring device having indenting on. This tension roller preferably has its own drive motor designed as a traction drive motor, which is preferably connected to a machine control. By means of the dancer roller, a web tension is adjustable and durable within limits and / or the web tension is preferably kept within limits. Optionally, the Rollenabspulvorrichtung an adhesive and cutting device, by means of a roll change flying, ie without stopping the printing material 02 can go on. Following the first web edge aligner, the web feed-in is preferably arranged. As part of the intake system, the at least the draw roller is preferably arranged, with which preferably the draw press is arranged to form the draw-in gap together. The feed nip serves to regulate a web tension and / or a transport of the printing material 02 ,

Under a printing unit 200 is an apparatus to understand by means of a web-shaped or sheet-shaped substrate 02 at least on one of its sides is or can be provided with at least one pressurized fluid. The at least one first printing unit 200 the printing press 01 preferably has at least one pressure point 201 on. Under a pressure point 201 In this case, a preferred complete range is to be understood in the contact between a respective same pressure fluid and a printing material 02 is manufactured or can be produced. The term the pressure point 201 should also be used when the pressure fluid without pressure between substrate 02 on the one hand and a component transferring the pressure fluid, on the other hand, onto the printing material 02 is applied, for example, by impinging freely movable pressure fluid on the substrate 02 , For example, flying drops of the pressurized fluid. Preferably comprises a pressure point 201 all areas responsible for an impact of a particular, in particular this pressure point 201 associated pressure fluid on the substrate 02 are provided. In the case of a printing unit operating according to the ink-jet printing method 200 includes, for example, a pressure point 201 all areas that impact a black ink on a first page of the substrate 02 are provided.

The at least one first printing unit 200 preferably has several pressure points 201 on, each associated with a respective pressure fluid, for example, at least four pressure points 201 , preferably at least five pressure points 201 , more preferably at least six pressure points 201 and even more preferably at least seven pressure points 201 ,

A working width of the printing press 01 and / or the at least one printing unit 200 is a dimension which is preferably orthogonal to the intended transport path of the printing substrate 02 by the at least one first printing unit 200 extends, more preferably in the transverse direction A. The transverse direction A is preferably a horizontal direction A. The transverse direction A is orthogonal to the intended transport direction of the printing material 02 and / or orthogonal to the intended transport path of the printing substrate 02 through the at least one printing unit 200 oriented. The working width of the printing press 01 preferably corresponds to a maximum width, which is a substrate 02 may have to still with the printing press 01 to be processed, so a maximum with the printing press 01 processable substrate width. The working width of the printing press 01 preferably corresponds to the working width of the at least one first printing unit 200 ,

Every bruise 201 preferably has at least one job site 211 on. Every job 211 is preferably at least one imaging device 221 assigned, in particular at least one print head 221 and more preferably at least one print head row 222 , Every job 211 preferably extends in the transverse direction A, more preferably over the entire working width of the printing machine 01 , In the case of an inkjet printing machine 01 is the at least one imaging device 221 preferred as at least one print head 221 , in particular inkjet printhead 221 educated. imaging devices 221 such as printheads 221 usually have a limited dimension, in particular in the transverse direction A. This results in a limited area of the printing material 02 on top of a respective printhead 221 Pressure fluid can be applied. Therefore, usually several imaging devices 221 or printheads 221 arranged in the transverse direction A one behind the other. Such with respect to the transverse direction A successively arranged print heads 221 be as Druckkopfreihe 222 designated. The following are broken print head rows 222 and continuous print head rows 222 described. In the special case of extending over the entire working width printhead 221 should this also as Druckkopfreihe 222 apply, in particular as a continuous print head row 222 ,

Usually, such individual printheads 221 not provided with nozzles up to an edge of its housing. Therefore, at least two, and more preferably exactly two, printhead rows extending in the transverse direction A are preferred 222 along the for the substrate 02 provided transport path offset from each other. Such printhead series 221 are, for example, interrupted print head rows 222 , In each case two such particular interrupted print head rows 222 together form a double row 223 of printheads 221 , By appropriate staggered arrangement of the printheads 221 the two interrupted print head rows 222 is preferably the entire working width of the printing press 01 and / or the at least one first printing unit 200 accessible from nozzles of the printheads. Preferably in a direction orthogonal to the transverse direction A, in particular in the transport direction along the intended transport path of the printing material 02 several printhead rows 222 , more preferably at least four double rows 223 and even more preferably at least eight double rows 223 of printheads 221 arranged in succession, in particular for the transport of the printing material 02 aligned transport path. Each double row 223 of printheads 221 is preferably a printing fluid, in particular assigned and / or assignable an ink of a particular color, for example, each one of the colors black, cyan, yellow and magenta or a paint, for example a clearcoat, or an agent or mixture for a pre-treatment (precoating) of the printing substrate 02 or a special color. With appropriate design of the printheads 221 is alternatively also conceivable, a continuous Druckkopfreihe 222 to arrange their nozzles together the complete working width of the printing press 01 cover.

Each nozzle is preferably a clearly defined target area in the direction A of the width of the printing material web 02 and preferably associated with respect to the transverse direction A. Each target area of a nozzle is preferably uniquely determined at least in the printing operation. In particular, a target area of a nozzle is that, in particular, substantially rectilinear space area which extends in a direction of ejection of this nozzle from this nozzle. An impact area is preferably an area that is suitable for contact of pressurized fluid with the printing substrate 02 is provided, in particular for drops of pressurized fluid with the substrate 02 , Each nozzle of each printhead 221 An impingement region is preferably assigned, in particular in a direct inkjet printing process. An impact area of a printhead 221 is preferably a sum of all impact areas of nozzles of this printhead 221 , An order office 211 is preferably a sum of impact areas of particular functionally combined printheads 221 , which together cover the entire working width of the printing press 01 span. In the case of as double rows 223 trained pairs of interrupted printhead rows 222 is an order office 211 preferably a sum of impact areas of the print heads 221 , which together form the double row. In the case of continuous print head rows 222 is an order office 211 preferably a sum of impact areas of the print heads 221 , which together make the continuous print head row 222 form.

For example, at least one pressurized fluid has multiple application sites 211 assigned, for example, in the form that two double rows 223 of printheads 221 eject or eject a same pressure medium. This is useful, for example, to increase a resolution of a printed image and / or to increase a speed of a printing process. These multiple jobs 211 then together form the pressure point associated with this printing medium 201 ,

For example, a first pressure point along the intended transport path is used 201 and / or first job site 211 the application of an agent or mixture of substances for the pretreatment (precoating) of the printing material 02 , As a result, this agent or substance mixture selectively and selectively to the substrate 02 are applied, in particular only at those locations where a further treatment of the printing material 02 takes place, which require such a pretreatment, for example, applying a further pressurized fluid.

A printing unit 200 includes, for example, only a pressure point 201 , for example for the color black. This preferably has at least one first printing unit 200 but how do you describe several bruises 201 on. The bruises 201 can spatially connect directly to each other or be spaced apart, for example, separated by color. Under the term of a pressure point 201 should also fall a section that -. B. without interruption by another color - several successive jobs 211 having the same color. Are however single or multiple order places 211 a color along the substrate 02 provided transport path considered by at least one single or multiple job site 211 separated at least one other color, they represent in this sense two different pressure points 201 In the case of only one pressure point 201 At the same time, this represents the first and the last point of pressure 201 of the relevant printing unit 200 For example, in the case of an indirect ink-jet printing method, a printing location is a contact area between a transfer body and the printing substrate 02 ,

This preferably has at least one printing unit 200 at least one print head 221 which is more preferred than at least one inkjet printhead 221 is trained. Every printhead 221 preferably has a plurality of nozzles from which drops of pressurized fluid, in particular ink drops are ejected and / or ejected. This preferably has at least one printing unit 200 at least one nozzle bar 231 on. A nozzle bar 231 is a component that preferably over at least 80% and more preferably at least 100% of the working width of the printing press 01 extends and / or preferably as a carrier of the at least one print head 221 serves. In this case, for example, a single or are preferably a plurality of nozzle bars 231 per printing unit 200 arranged. More preferably, the at least one printing unit 200 at least three nozzle bars 231 on, even more preferably at least five nozzle bars 231 and even more preferably at least fourteen (14) nozzle bars 231 ,

The at least one first nozzle bar 231 preferably extends orthogonal to the intended transport path of the printing material 02 over the entire working width of the printing press 01 , in particular in the transverse direction A. The at least one nozzle bar 231 preferably has at least one row of nozzles, in particular in that at least one nozzle having printhead 221 on the at least one nozzle bar 231 is arranged. The at least one row of nozzles, viewed in the transverse direction A, preferably has the entire working width of the printing press 01 at regular intervals nozzle openings. In one embodiment, this is a single continuous printhead 221 arranged, extending in the transverse direction A over the entire working width of the printing press 01 extends. In another preferred embodiment, several print heads are side by side in the transverse direction A. 221 on the at least one nozzle bar 231 arranged.

Preferably, the at least one nozzle bar 231 in each case at least one print head 221 and preferably each multiple printheads 221 on. In the case where the at least one nozzle bar 231 only one print head at a time 221 has, this printhead extends 221 preferably over an entire working width of the printing press 01 , In the case where the at least one nozzle bar 231 several print heads each 221 have these printheads 221 preferred as at least one print head row 221 or more preferably as at least one double row 223 of printheads 221 formed and extends the at least one print head row 222 or double row 223 of printheads 221 preferably over an entire working width of the printing press 01 , In the case of a double row 223 of printheads 221 is the at least one row of nozzles of the respective nozzle bar 231 preferably on at least two interrupted print head rows 222 divided up.

Indicates a printhead 221 several nozzles, so form all target areas of the nozzles of this printhead 221 together a workspace of this printhead 221 , Workspaces of Printheads 221 a nozzle bar 231 and in particular a double row of printheads 221 abut one another in the transverse direction A and / or overlap in the transverse direction A seen. In this way, even when not in the transverse direction A printhead 221 ensures that seen in the transverse direction A at regular and preferably periodic distances target areas of nozzles of the at least one nozzle beam 231 and / or in particular each double row 223 of printheads 221 lie. In any case, an entire working area of the at least one nozzle bar extends 231 preferably over at least 90% and more preferably at least 100% of the working width of press 01 in the transverse direction A or the entire width of a printing material guide 249 , On one or both sides with respect to the axial direction A, a narrow region of the printing material web 02 and / or the width of the printing material guide 249 be present, which is not the working area of the nozzle bars 231 belongs.

An entire working area of the at least one nozzle bar 231 is preferred from all workspaces of printheads 221 this at least one nozzle bar 231 and is preferably from all target areas of nozzles of these printheads 221 this at least one nozzle bar 231 composed. Preferably, an entire work area corresponds to a double row 223 of printheads 221 seen in the transverse direction A the working area of the at least one nozzle bar 231 , Each double row 223 of printheads 221 is preferably assigned a printing fluid of a particular color and / or assignable, for example, each one of the colors black, cyan, yellow and magenta or a paint, for example a clearcoat. Preferably, all workspaces form printheads 221 the at least one first printing unit 200 together a working area of this at least one first printing unit 200 ,

Preferably, the at least one nozzle bar 213 in a conveying direction of a printing material guide 249 several rows of nozzles on. This conveying direction of the printing material guide 249 is preferably identical to the transport direction of the transport of printing material 02 provided transport route. Preferably, each printhead 221 a plurality of nozzles, which further preferably in a matrix of a plurality of rows in the transverse direction A and / or a plurality of columns, preferably in the conveying direction of the printing material guide 249 are arranged, wherein such columns, for example, obliquely to the conveying direction of Bedruckstoffführung 249 are arranged extending, for example, to increase a resolution of a printed image.

The at least one print head 221 works for the production of ink droplets preferably according to the drop-on-demand process, in which ink droplets are generated selectively when needed. Preferably, at least one heating element is used per nozzle, which generates an evaporation of pressurized fluid within a reservoir. Alternatively, at least one piezoelectric element per nozzle is used, which can reduce a volume filled with ink at high speed by a certain proportion when a voltage is applied.

In the drop-on-demand process, a droplet deflection after ejection from the corresponding nozzle is not necessary, since it is possible to achieve a target position of the respective ink drop on the moving substrate web 02 with respect to the conveying direction of the printing material guide 249 solely by an emission time of the respective drop of ink and a conveying speed of the printing material guide 249 set. By individually controlling each nozzle, ink drops from the at least one printhead are only at selected times and at selected locations 221 on the substrate web 02 transfer. This is done as a function of the conveying speed and / or conveying means position of the printing material guide 249 , a distance between the respective nozzle and the printing material web 02 as well as the position of the target area of the respective nozzle with respect to the position of the printing material guide viewed in the transport direction 249 , This results in a desired printed image, which is designed as a function of the control of all nozzles. An ejection of ink droplets from the at least one nozzle of the at least one printhead 221 is preferably carried out as a function of the predetermined by the machine control rotational position of the first drive motor. In this case, the desired data of the rotational position of the first drive motor predetermined by the machine controller to the first drive motor are preferably converted in real time into a calculation of data for controlling the nozzles of the at least one print head 221 included. A comparison with actual data of the rotational position of the first drive motor is preferably not necessary and preferably does not take place. An exact and constant position of the printing material web 02 relative to the first printing material guide 249 is therefore of great importance for a passport-friendly and / or register-compatible printed image.

The high accuracy of the predetermined by the machine control and processed by the first drive motor target data for rotational position of the first drive motor of Bedruckstoffführung 249 allows a very accurate orientation and / or knowledge of the position of the substrate web 02 relative to the nozzles and their target areas. A drop flight time between the nozzles and the printing material web 02 is for example by a teach-in process and / or by the known distance between the nozzles and the printing material web 02 and a known drop speed known. From the position of the printing material guide 249 and / or the first drive of the printing material guide 249 , the conveying speed of the printing material guide 249 and the drop flight time is determined an ideal time to eject a respective drop, so that a passer-sized and / or register-compliant imaging of the substrate web 02 is reached.

A conveyor line, in particular a conveyor line for printing material 02 preferably includes those facilities 241 ; 251 ; 252 ; 253 ; 254 ; 256 ; 257 ; 303 ; 306 ; 343 ; 344 , which is a transport route for the substrate 02 specify, for example, rollers, cylinders, vanes and the like. A conveyor line of the at least one first printing unit 200 extending from one to the other for the substrate 02 provided transport path first pressure point 201 the at least one first printing unit 200 up to one along the for the substrate 02 provided transport path last pressure point 201 the at least one first printing unit 200 extends, is called pressure line 224 the at least one first printing unit 200 designated. The intended transport path is that area of space that the printing material 02 would possibly take over in the event of his presence. The conveying path of the at least one first printing unit 200 preferably includes those facilities 241 ; 251 ; 252 ; 254 ; 256 conveying the transport path through the at least one first printing unit 200 specify, in particular both the intended transport regardless of a presence of the substrate 02 as well as the actual transport route when the substrate is present 02 , The of the pressure line 224 Specified part of the intended transport of the substrate 02 is called a printing section 226 designated the intended transport path.

This preferably has at least one printing unit 200 along the printing section 226 for printing material 02 provided transport path multiple support points 261 on. reference points 261 are preferably characterized by the fact that at support points 261 the intended transport path with respect to its transport direction influenced, for example, is changed. These interpolation points 261 are preferred by respective vanes 241 established. The guiding elements 241 are preferably part of the printing material guide 249 , baffles 241 are preferred such devices that the for the substrate 02 limit and redirect provided transport path and in particular in the case of the presence of the printing substrate 02 preferably at least partially with the printing material 02 stay in contact. As guiding elements 241 come co-rotating and / or positively driven rollers and / or rollers and / or belt conveyors in question, preferred are the guide elements 241 however, as one-piece or multi-part fixed guide elements 241 educated. A deflection angle 227 a guide element 241 is preferably an angle between a first local transport direction T1 and a second local transport direction T2, wherein the first local transport direction T1, a direction T1 of the substrate 02 provided transport path is in a range in which the intended transport path to the guide element 241 runs up or run up is provided and wherein the second local transport direction T2 a direction T2 of the substrate 02 provided transport path is in a range in which the intended transport path, the guide element 241 leaves or to leave. (For example, this is also schematically in 2 explained.) The guide elements 241 are in particular components of the conveyor line. At least in the area of the printing section 226 for printing material 02 provided transport path arranged guide elements 241 are in particular components of the pressure line 224 ,

Preferably, the at least one guide element extends 241 in the transverse direction A over the entire working width of the printing machine 01 , A cross section of the at least one guide element 241 is preferably an intersection of the at least one guide element with a plane whose surface normal is oriented parallel to the transverse direction A. Preferably, the entire cross section of the at least one guide element 241 over the working width of the printing press 01 the same, in particular regardless of the position of the cross section within the working range of the at least one first printing unit 200 and / or regardless of the position of the cross section with respect to the transverse direction A.

There are relatively flat vanes 241 conceivable, for example in the form of slightly curved sheets. However, the guide elements preferably have a substantially cylinder jacket-shaped surface 228 on. Preferably, the cross section of the at least one guide element 241 at least one curved outer boundary, in particular with finite, different from zero radius of curvature. Preferably, this radius of curvature and thus the radius of the guide elements 241 greater than 5 mm, more preferably greater than 10 mm and even more preferably greater than 13 mm. Preferably, this radius of curvature and thus the radius of the guide elements 241 less than 50 mm, more preferably less than 30 mm, and even more preferably less than 18 mm. This curved outer boundary is preferably at least in a region of the cross section, that of the substrate 02 facing transport area is facing. The curvature is especially convex. More preferably, the entire outer boundary of this cross section is curved. Even more preferably, the boundary of this cross section is substantially circular.

This preferably has at least one guide element 241 at least in the range of the working width of the printing press 01 and / or the at least one first printing unit 200 a cylindrical outer surface 228 on, more preferably over an entire extension of the working width of the printing press 01 and even more preferably over the entire extent of the at least one guide element in the transverse direction A. This is preferably at least one guide element 241 as at least one pole 241 formed with a substantially circular cross-section, in particular as a cylindrical rod 241 , The curvature axis of the surface 228 the pole 241 falls, for example, with a central axis 229 the pole 241 together. Minimal, caused for example by wear flattening should not be understood as deviations from the substantially circular cross-section. Preferred is an outer surface 228 of the at least one guide element 241 formed by at least one friction-reducing surface, for example by a coating. For example, this outer surface 228 of the at least one guide element 241 formed by a chrome coating. This outer surface is preferred 228 of the at least one guide element 241 an entire in the range of the working width of the printing press 01 arranged lateral surface 228 preferably as a rod 241 trained guide element 241 , Preference is given to several of the guide elements 241 the same structure, more preferably all the guide elements 241 within the pressure range 224 the at least one first printing unit 200 ,

Preference is given to a plurality of such guide elements 241 in terms of the for the substrate 02 provided transport path arranged in succession, in particular at least three, more preferably at least five and even more preferably at least fourteen, for example twenty-eight. Preferably, the pressure line 224 a plurality of such successively arranged guide elements 241 on. Due to the relative arrangement of the guide elements 241 the pressure line 224 each other is for each guide element 241 a respective deflection angle 227 established. Preferably, the deflection angle of the guide elements 241 the pressure line 224 are substantially the same and at most in the range of a first and / or a last guide element 241 the pressure line 224 of those of the other vanes 241 the pressure line 224 from.

If in the foregoing and / or below of guiding elements 241 is mentioned, are preferred at least and more preferably exclusively those guide elements 241 the pressure line 224 meant. Preferably, the deflection angle 227 of the at least one guide element 241 and more preferably several and even more preferably all the guide elements 241 at least 0.5 ° (zero point five degrees), more preferably at least 1 ° (one degree), and even more preferably at least 1.5 ° (one point five degrees). Preferably, the deflection angle 227 of the at least one guide element 241 and more preferably several and even more preferably all the guide elements 241 at most 10 degrees (ten degrees), more preferably at most 5 degrees (five degrees) and even more preferably at most 2.5 degrees (two point five degrees). The guiding elements are preferred 241 the pressure line 224 along the pressure line 224 arranged in the form of a bow, in particular a circular arc.

The guiding elements are preferred 241 immovable or fixed in each case arranged at least one holding device, in particular with respect to rotational movements about a respective guide element 241 cutting axis of rotation immovable and / or fixed. The respective at least one holding device can preferably be deactivated in its holding function, for example by releasing at least one closure device. By a preferred symmetry, in particular radial symmetry or even rotational symmetry of the guide elements 241 is it possible to use the appropriate vanes 241 to solve from its fixation, rotated by a small angle again to arrange in the holding device and fix again and thereby another, preferably still unused area of the surface 228 , in particular lateral surface 228 of the corresponding guide element 241 for contact with the substrate 02 provided. Preferably, this angle is an integer fraction of a full angle, ie 360 ° / n, where n is a natural number. For example, the guide elements are rotationally symmetrical, for example cylindrical.

At least one support element is preferred 273 ; 274 arranged. The at least one support element 273 ; 274 preferably serves as a support device for the at least one guide element 241 , more preferably for a plurality of guide elements 241 the pressure line 224 and even more preferred for all vanes 241 the pressure line 224 , The at least one support element 273 is for example as at least one lateral support element 273 educated. The at least one support element 273 ; 274 is preferred as at least one support frame 276 or as part of at least one support frame 276 formed, for example, at least two lateral support elements 273 in which more preferably directly and / or holding devices, in particular a plurality of guide elements 241 are attached. For example, the at least one support frame 276 at least two of the guiding elements 241 different frame crossbeams 277 on, which extend at least in the transverse direction A and for a constant relative position of the lateral support elements 273 to care. In principle, this function can be derived from the guiding elements 241 be taken over, in which case it must be ensured that when loosening all the guide elements 241 from the supporting elements 273 ; 274 the lateral support elements 273 are no longer fixed to each other. For stability reasons, arranging at least one frame cross member 277 prefers. The at least one lateral support element 273 preferably has per guide element 241 at least one support area on which the respective guide element 241 on the lateral support element 273 rests on or at least with the lateral support element 273 in contact. At least one inner support element is preferred 274 arranged. The at least one inner support element 274 serves at least to one or more or preferably all the guide elements 241 to protect against unwanted or at least against unintentionally high deflection.

Preference is given to each guide element 241 a printhead series 222 assigned. Alternatively, each guiding element could also be used 241 several printhead rows 222 be assigned, for example, when the guide elements 241 would not be designed as rods, but as a flat guide elements. Each printhead row is preferred 222 a guiding element 241 assigned. Each nozzle of the printheads 221 preferably has a respective ejection direction. Preferably, all nozzles of a same printhead 221 a same ejection direction. Preferably, at least one and more preferably each printhead 221 the at least one first printing unit 200 at least one nozzle, whose imaginary extension in the ejection direction arranged in print position printhead 221 and when arranged in working position guide 241 a guiding element 241 cuts, in particular the respective printhead 221 associated guide element 241 , More preferably, at least one, and more preferably, each printhead 221 the at least one first printing unit 200 a plurality of nozzles, whose imaginary extension in the ejection direction with arranged in printing position printhead 221 and when arranged in working position guide 241 a guiding element 241 cuts, in particular the respective printhead 221 associated guide element 241 , More preferably, at least one, and more preferably, each printhead 221 the at least one first printing unit 200 only those nozzles on whose imaginary extension in ejection direction arranged in print position printhead 221 and when arranged in working position guide 241 a guiding element 241 cuts, in particular the respective printhead 221 associated guide element 241 ,

A shortest distance between a respective nozzle of a respective printhead arranged in its printing position 221 on the one hand and for the substrate 02 provided transport path or the nearest arranged in its working position guide element 241 On the other hand, it is preferably at least 0.1 mm, more preferably at least 0.5 mm, and even more preferably at least 1.0 mm and preferably at most 5 mm, more preferably at most 3.0 mm, and even more preferably at most 2.0 mm. A shortest distance between a respective nozzle of a respective printhead arranged in its printing position 221 on the one hand and the substrate 02 On the other hand, it is preferably at least 0.1 mm, more preferably at least 0.5 mm, and even more preferably at least 1.0 mm and preferably at most 5 mm, more preferably at most 3.0 mm, and even more preferably at most 2.0 mm. These distances are over the thickness of the substrate 02 related to each other.

At least one shielding device is preferred 292 arranged. The at least one shielding device 292 is preferably used to parts of the print heads, for example, their supply facilities for electronics and / or pressure fluid and / or their brackets and / or parts of the nozzle bars 231 and / or support body 616 on the one hand against the for the substrate 02 provided transport path and in particular its printing section 226 and / or against one of the nozzles of the printheads 221 shielding the area covered. In this way, pressurized fluid is prevented from soiling on such parts of the printheads 221 can deposit, which could be affected, for example in the form of fine ink mist. The at least one shielding device 292 preferably has per printhead 221 at least one opening through which the respective print head 221 or at least partially projecting through its nozzles and at arranged in its printing position printhead 221 also protrude through. The apertures are defined by the print heads located in their print positions 221 preferably substantially closed.

The at least one shielding device 292 is, for example, as at least one shielding surface 292 designed, in particular as at least one shielding plate 292 , Preferably, the at least one shielding device 292 stationary relative to a frame 283 the at least one first printing unit 200 arranged, in particular independent of the arrangement of the at least one print head 221 in its printing position or in its parking position and / or independent of the arrangement of the at least one guide element 241 and / or the support frame 276 in its working position or in its maintenance position.

At least rotatable first web-guiding agent is preferred 251 in terms of the for the substrate 02 provided transport path in front of the first guide element 241 the pressure line 224 arranged. This at least a first rotatable Bahnleitmittel 251 is preferred as a first motor-driven web-guiding means 251 and / or a first web guide roll 251 designed, in particular a first motor-driven web guide roll 251 , For example, the at least one first web guide roll 251 its own drive motor and / or is the at least one first web guide roll 251 Part of at least one system for controlling a web tension of a web-shaped substrate 02 , At least one rotatable second web-guiding means is preferred 254 in terms of the for the substrate 02 provided transport path after the last guide element 241 the pressure line 224 arranged. This at least a second rotatable web-guiding means 254 is preferred as a second motor-driven web-guiding means 254 and / or a second web guide roll 254 designed, in particular a second motor-driven web guide roll 254 , For example, the at least one second web guide roll 254 a separate drive motor and / or is the at least one second web guide roll 254 Part of the at least one system for controlling the web tension of the web-shaped substrate 02 , The web guiding means 251 ; 253 ; 254 ; 257 and / or web guide rollers 251 ; 252 ; 253 ; 254 ; 256 ; 257 are preferably part of the printing material guide 249 ,

Preferably, the printing section runs 226 for the substrate 02 monotonously increasing the planned transport route. A first guide element is preferred 241 the pressure line 224 the lowest arranged of all vanes 241 the pressure line 224 , Preference is given to a last guide element 241 the pressure line 224 the highest arranged guide 241 the pressure line 224 ,

This preferably has at least one printing unit 200 at least one and more preferably exactly one pivoting device 279 on. The at least one swivel device 279 is preferably at least one, more preferably several and even more preferably all the guide elements 241 the pressure line 224 assigned. In particular by means of the at least one pivoting device 279 are preferably a plurality of guide elements 241 and more preferably all the guide elements 241 the pressure line 224 around at least one common pivot axis 281 ; 282 pivotally arranged, in particular along a respective individual and / or each different length pivoting path. In this case, this is at least a common pivot axis 281 ; 282 preferably at least one pivot axis 281 ; 282 the swivel device 279 the at least one printing unit 200 , For example, at least one support element 273 ; 274 , in particular at least one lateral support element 273 and / or at least one inner support element 274 together with the guiding elements 241 and / or at least one support frame 276 around the at least one common pivot axis 281 ; 282 pivotally arranged, in particular along a respective pivoting path. Preferably, the at least one support frame 276 around the at least one common pivot axis 281 ; 282 arranged pivotally.

Each around the at least one common pivot axis 281 ; 282 swiveling guide element 241 is preferably associated with a working position and a maintenance position. The working position of each guide element 241 is preferably characterized in that the guide element 241 is in a printing operation in its working position and / or that arranged in its working position guide element 241 from a next this guide element, arranged in its printing position printhead 221 a smallest distance of at most 5 mm, more preferably at most 3.0 mm and even more preferably at most 2.0 mm, and / or that the guide element arranged in its working position 241 from that for the substrate 02 in the printing operation provided transport path is affected. The maintenance position of each baffle 241 is preferably characterized in that the guide element 241 in a maintenance state of the at least one first printing unit 200 located in its maintenance position and / or that arranged in its maintenance position guide element 241 from a next this guide element, arranged in its printing position printhead 221 a minimum distance of at least 5 cm, more preferably at least 10 cm and even more preferably at least 20 cm. and / or that the guide element arranged in its maintenance position 241 from that for the substrate 02 spaced in the printing operation transport path is spaced.

The at least one common pivot axis 281 ; 282 the at least one pivoting device 279 is preferably arranged further above, as the working position and / or the maintenance position of the transport direction of the printing substrate 02 seen first guiding element 241 the pressure line 224 , The at least one common pivot axis 281 ; 282 is preferably arranged further above, as the working position and / or the maintenance position of each in the transport direction of the printing material 02 seen a middle third of the pressure range 224 associated guide element 241 the pressure line 224 , A vertical component of a distance between the at least one first guide element is preferred 241 the pressure line 224 on the one hand and the at least one common pivot axis 281 ; 282 on the other hand, at least twice as large as a vertical component of a distance between the at least one last guide element 241 the pressure line 224 on the one hand and the at least one common pivot axis 281 ; 282 on the other hand, more preferably at least three times as large and even more preferably at least four times as large, in particular independently of the arrangement of the at least one support frame 276 in its working position or its maintenance position.

In a preferred first Embodiment of the pivoting device 279 has the swivel device 279 exactly one common pivot axis 281 on. In this first embodiment of the pivoting device 279 this is at least one support element 273 ; 274 and in particular the at least one support frame 276 around a single common pivot axis 281 pivotable, in particular relative to a frame 283 the at least one first printing unit 200 , In a second embodiment of the pivoting device 279 has the swivel device 279 at least two and preferably exactly two common pivot axes 281 ; 282 and at least one intermediate link 284 on. The at least one intermediate link 284 is preferably about a first common pivot axis 281 relative to the frame 283 the at least one first printing unit 200 pivotable.

Preferably, the at least one pivoting device 279 at least one particular common pivot drive 286 on. The at least one rotary actuator 286 has, for example, at least one linear drive 286 on. The at least one rotary actuator 286 , in particular linear drive 286 preferably engages with at least a first connecting element on the frame 283 to, for example, directly or with the interposition of at least one other component. The at least one rotary actuator 286 , in particular linear drive 286 preferably engages with at least one second connecting element on at least one support element 273 ; 274 and / or at least one frame cross member 277 and / or the support frame 276 at. For example, by means of the at least one linear drive 286 a beginning of a flexible traction means, in particular a chain linearly movable and the traction means is deflected by at least one and preferably at least two deflecting means and is an end of the traction means with the at least one support frame 276 connected. If now the beginning of the traction means is moved linearly, the traction means pulls the supporting frame 276 upwards, whereby this around the at least one pivot axis 281 ; 282 is pivoted. By using the flexible traction means, a pivoting movement of the support frame 276 in particular about a single pivot axis 281 with a linear drive 286 be realized because the flexible traction means does not require a fixed trajectory.

A main conveying direction B is preferably by a straight-line connection between one on the substrate 02 provided transport path related first guide element 241 the pressure line 224 and one on the substrate 02 provided transport path based last guide element 241 the pressure line 224 established. The main conveying direction B is preferably by a straight-line connection between one on the printing section 226 for printing material 02 provided transport path related first guide element 241 and one on the printing section 226 for printing material 02 provided transport path based last guide element 241 established. The main conveying direction B points from that to printing material 02 provided transport path related first guide element 241 the pressure line 224 to the on the substrate 02 provided transport path based last guide element 241 the pressure line 224 , The main conveying direction B is preferably oriented orthogonal to the transverse direction A.

The alignment of the main conveying direction B preferably has guide elements arranged in its working position 241 and / or with in its working position arranged support frame 276 an angle of at least 10 °, more preferably at least 20 ° and even more preferably at least 30 ° to the orientation of the main conveying direction B when arranged in their maintenance position guide elements 241 and / or at in its maintenance position arranged support frame 276 on.

The main conveying direction B preferably has guide elements arranged in its working position 241 and / or at its working position arranged support frame 276 at least one vertically upwardly facing component and at least one horizontal component. Preferably, the main conveying direction B is arranged in its working position guide elements 241 and / or at its working position arranged support frame 276 at an angle of at least 10 °, more preferably at least 20 °, and even more preferably at least 30 ° to a horizontal plane. Preferably, the main conveying direction B is arranged in its working position guide elements 241 and / or at its working position arranged support frame 276 at an angle of at most 70 °, more preferably at most 55 ° and even more preferably at most 40 ° aligned to a horizontal plane. In an alternative embodiment, the main conveying direction B would be substantially horizontal, ie an angle of at most 5 ° to a horizontal plane.

The main conveying direction B preferably has guide elements arranged in its maintenance position 241 and / or at in its maintenance position arranged support frame 276 at least one vertically upwardly facing component, and more preferably exclusively a vertically upwardly facing component. Preferably, the main conveying direction B is arranged in its maintenance position guide elements 241 and / or at in its maintenance position arranged support frame 276 at an angle of at most 30 °, more preferably at most 20 ° and even more preferably at most 10 ° to a vertical direction.

Due to the joint pivoting of the guide elements 241 the pressure line 224 and / or the pivotability of the at least one support frame 276 preferably results in a possibility for increasing a distance between the nozzles of the print heads and / or the at least one shielding device 292 on the one hand and the guide elements 241 the pressure line 224 on the other hand. Due to the joint pivoting of the guide elements 241 the pressure line 224 and / or the pivotability of the at least one support frame 276 This results in a maintenance room 291 between the nozzles of the printheads 221 and / or the at least one shielding device 292 on the one hand and the guide elements 241 on the other hand. This maintenance room 291 is accessible, for example, to operating personnel. This maintenance room 291 allows, for example, a maintenance and / or cleaning of the guide elements 241 the pressure line 224 and / or the at least one shielding device 292 , in particular independent of the working width of the printing press 01 , For example, in the maintenance room 291 at least one preferably movable stand aid 293 , in particular floor space 293 arranged. The stand area 293 For example, it is made in two parts and preferably has an integrated and extendable ladder.

In a regular printing operation, all printheads are 221 fixedly arranged. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. There are different situations imaginable in which a movement of the printheads 221 necessary is. A first such situation is a flying roll change or printing material change or generally a roll change with gluing process or a printing material change with gluing process. At least the print heads 221 and preferably the at least one nozzle bar 231 and / or support body 616 Overall, therefore, in at least one direction, for example, Abstellrichtung C, relative to the management level of the first Bedruckstoffführung 249 movable, in particular from this abstellbar, more preferably orthogonal to a the printhead 221 next surface of the substrate 02 provided transport route. In particular, the printheads are preferred 221 and more preferably, the at least one nozzle bar 231 in at least one direction, in particular Abstellrichtung C, relative to the respective next guide element 241 movable, in particular off this. In this way, the distance can be sufficiently increased, but must be subsequently reduced accordingly again. A second such situation results, for example, in a maintenance and / or cleaning and / or encapsulation of at least one of the print heads 221 , The printheads 221 are preferably individually on the at least one nozzle bar 231 attached and individually from the at least one nozzle bar 231 solvable. This allows individual printheads 221 serviced and / or cleaned and / or replaced.

At least one cleaning device is preferred 263 , in particular at least one nozzle cleaning device 263 arranged, which has at least one washing nozzle and / or at least one brush and / or at least one puller and / or at least one cleaning fleece. The printheads are preferred 221 in their respective Abstellposition so far from the particular in their working position arranged guide elements 241 the pressure line 224 arranged that the at least one cleaning device 263 , in particular nozzle cleaning device 263 in a resulting cleaning gap 289 fits. This is preferably at least one cleaning device 263 arranged in the transverse direction A movable and further preferably has a dimension in the transverse direction A, which is smaller than the working width of the printing press. Preferably, the at least one cleaning device 263 in the case where its assigned printheads 221 are arranged in their printing position, arranged with respect to the transverse direction A outside the working width of the printing press. Each printhead row is preferred 222 or each double row 223 of printheads 221 a separate cleaning device 263 assigned, more preferably two own cleaning facilities 263 ,

Preference is given to printing material 02 provided transport path after the at least one first printing unit 200 at least a first dryer 301 arranged, which is designed as a drying section area of the substrate 02 provided transport path through an area of action of the at least one dryer 301 is fixed. After passing the at least one first printing unit 200 the transport path of the printing material passes through 02 and in particular the printing material web 02 prefers the at least one first dryer 301 to dry the applied printing fluid. Preferably, the at least one first dryer 301 Part of the at least one dryer unit 300 ,

The at least one dryer unit 300 has at least a first dryer 301 which is preferred as at least one radiation dryer 301 and / or as at least one flow dryer 301 is trained. It is also possible to have several, for example, along the intended transport path successively arranged dryer 301 to arrange. Such several dryers 301 For example, in a substantially vertical transport path provided in the at least one dryer unit 300 arranged one above the other. The at least one first dryer 301 has at least one first preferably controllable and / or controllable energy delivery device 302 ; 317 on. The at least one first energy delivery device 302 ; 317 is for example at least one radiation source 302 and / or at least one air supply line 317 educated. The at least one radiation source 302 is for example as an infrared radiation source 302 and / or as a radiation source 302 formed for ultraviolet light. The at least one radiation source 302 is preferably at least one controllable and / or controllable radiation source 302 , The at least one first energy delivery device 302 ; 317 is preferred for the selective transfer of energy in particular from the at least one first energy delivery device 302 ; 317 to one in a Einwirkbereich the first energy delivery device 302 ; 317 arranged and / or arranged, preferably provided with pressure fluid substrate 02 educated. The at least one first energy delivery device 302 ; 317 is movably arranged, in particular relative to that for the transport of web-shaped substrate 02 provided transport route. The area of action of the at least one first energy delivery device preferably intersects 302 ; 317 the for the transport of sheet-like printing material 02 provided transport route.

The at least one first energy delivery device 302 ; 317 is arranged along at least 75%, preferably at least 90% and more preferably completely linear travel in and / or against a direction of adjustment S between at least one engagement position and at least one parking position movable. The adjustment direction S deviates from at least one horizontal direction by at most 40 °, preferably at most 30 °, more preferably at most 15 ° and even more preferably at most 5 °. The adjustment direction further deviates by at most 40 °, preferably at most 30 °, more preferably at most 15 ° and even more preferably at most 5 ° from a normal direction N. This normal direction N is preferably a normal direction N of a mean surface normal of a whole in a particular total exposure range the at least one first energy delivery device 302 ; 317 lying section of the web-shaped substrate 02 provided transport route. The normal direction N of the mean surface normal is in particular determined as an average over all directions of surface normals from tangent planes to all in the area of action of the at least one first energy delivery device 302 ; 317 lying surface elements of the for the substrate 02 provided transport route. If the substrate 02 as preferably substantially vertically through the area of action of the at least one energy delivery device 302 ; 317 runs, the normal direction N and / or the adjustment direction S is thus preferably oriented substantially horizontally.

Preferably, the printing press is characterized 01 characterized in that at least within the at least one dryer unit 300 and more preferably also within the at least one printing unit 200 and even more preferably in another area of the printing machine 01 at least temporarily and preferably permanently at least one and preferably exactly one along at least one Einziehwegs movable, preferably endless drawing-in means for drawing a printing material web 02 arranged and / or can be arranged. Under an arrangement within the dryer unit 300 is to be understood in particular that a projection of the at least one retraction means in or against the axial direction A or transverse direction A the Einwirkbereich the at least one energy delivery device 302 ; 317 cuts. Preferably, the at least one Einziehweg and / or the at least one retraction means with respect to the axial direction A outside the working width of the printing press 01 arranged. At least one printing material web is preferred 02 via at least one further preferably designed as at least one Einziehspitze connecting element connected to the at least one retraction and / or connectable, in particular independent of the formation of the at least one retraction means as Einziehband and / or Einziehkette and / or endless retraction and / or finite retraction.

At least two different parking positions of the at least one first energy delivery device, in particular with respect to the adjustment direction S, are preferred 302 ; 317 provided, in which the at least one first energy delivery device 302 ; 317 Depending on the operating mode can be specifically arranged. Preferably, the at least two provided parking positions are provided in addition to the at least one engagement position. For example, one of the parking positions is a retraction position and / or one of the parking positions is an access position. The retraction position is preferably then take when retraction of a substrate 02 by the at least one dryer unit 300 should be made. The access position is preferably to be assumed when an operator accesses a side of the at least one energy delivery device that faces the intended transport path 302 ; 317 should receive.

For example, a shortest distance between the at least one first energy delivery device 302 ; 317 and for the substrate 02 provided transport path arranged in the access position first Energy delivery device 302 ; 317 larger than when arranged in the retraction position first energy delivery device 302 ; 317 , In particular, a shortest distance between the at least one first energy delivery device 302 ; 317 and for the substrate 02 provided transport path arranged in the retraction position first energy delivery device 302 ; 317 greater than in the Einwirkposition arranged first energy delivery device 302 ; 317 , preferably by at least 5 mm, more preferably by at least 50 mm and even more preferably by at least 90 mm and, independently of this, by at most 400 mm, for example. A shortest distance between the at least one first energy delivery device is preferred 302 ; 317 and for the substrate 02 provided transport path when arranged in the access position first energy delivery device 302 ; 317 greater than in the Einwirkposition arranged first energy delivery device 302 ; 317 , preferably by at least 450 mm, more preferably by at least 600 mm and even more preferably by at least 700 mm.

It is preferred along the for the substrate 02 provided transport path after the Einwirkbereich the at least one first energy delivery device 302 ; 317 at least one measuring roller 343 and / or at least a first guide roller 347 arranged, preferably of the for the substrate 02 provided transport path and / or the substrate 02 is entwined. It is preferred along the for the substrate 02 provided transport path before the Einwirkbereich the at least one first energy delivery device 302 ; 317 at least a first draw roller 344 arranged, which is associated with at least one own drive motor and the preferred of the for the printing material 02 provided transport path and / or the substrate 02 is wrapped and / or is along the for the substrate 02 provided transport path after the Einwirkbereich the at least one first energy delivery device 302 ; 317 and / or after the at least one measuring roller 343 and / or after the at least one first deflection roller 347 at least a second draw roller 303 arranged, preferably of the for the substrate 02 provided transport path and / or the substrate 02 is entwined. Preferably, the at least one second draw roller 303 and / or the at least one measuring roller 343 and / or the at least one first deflection roller 347 as at least one cooling roll 303 educated.

Preferably, several, for example at least three, more preferably at least five and even more preferably at least nine pressure rollers 306 individually against the at least one second draw roller 303 arranged pressed. For example, each of these pressure rollers 306 arranged on a separate lever arm which is pivotally mounted by means of its own force element. Preferably, all such lever arms are arranged pivotably about a common axis. These pressure rollers are preferred 306 arranged in the transverse direction A one behind the other. It is preferred along the for the substrate 02 provided transport path after the at least one draw roller 303 at least a second guide roller 348 arranged, preferably of the for the substrate 02 provided transport path and / or the substrate 02 is entwined. For example, the at least one second deflection roller 348 with the at least one web guide roller 257 identical.

Preferably, at least one actuator is arranged, by means of which a movement of the at least one energy delivery device 302 ; 317 along the travel is feasible. The at least one actuator is designed, for example, as at least one hydraulic and / or at least one pneumatic drive. Preferably, the at least one actuator is designed as at least one electric drive and / or more preferably at least one threaded spindle and at least one cooperating threaded nut.

Preferably, the at least one first printing unit is characterized 200 having printing machine 01 characterized in that along the for substrate 02 provided transport path after the at least one first printing unit 200 the at least one dryer unit 300 with the at least one first dryer 301 is arranged, which forms a particular designed as a drying portion of the area for printing material 02 provided transport path, by the Einwirkbereich of the at least one first dryer 301 is fixed. Preferably, in at least half and more preferably at least 75% of the total drying section of the substrate for printing 02 provided transport path one for the substrate 02 provided transport direction at least one vertical, preferably downwardly facing component, which is greater than any optional horizontal component of this transport direction.

By a rotation axis of the at least one first draw roller 344 and / or a rotation axis of the at least one second draw roller 303 is preferably the axial direction A or transverse direction A set, in particular as parallel to this axis of rotation direction. The adjustment direction S of the at least one energy delivery device 302 ; 317 is preferably linear. The adjustment direction S of the at least one energy delivery device 302 ; 317 deviates from the axial direction A or transverse direction A by at least 50 °, preferably at least 60 °, more preferably at least 75 ° and even more preferably at least 85 °. Preferably, the adjustment direction S of the at least one energy delivery device deviates 302 ; 317 in particular simultaneously from at least one horizontal direction by at most 40 °, preferably at most 30 °, more preferably at most 15 ° and even more preferably at most 5 °.

By the at least one energy delivery device 302 ; 317 emitted radiation is preferably solvent and / or moisture from the printing material web 02 and / or from the pressurized fluid disposed thereon and from the ambient air in an interior of the at least one first dryer 301 added. The transport path of the printing material web 02 passes through this interior of the at least one first dryer 301 , At least one is preferred Ventilation device in the region of the at least one energy delivery device 302 ; 317 arranged.

The at least one ventilation device preferably has at least one air supply line 317 and at least one air discharge line 318 on. The at least one first dryer 301 is thus in addition to his training as a radiation dryer 301 also as a flow dryer 301 educated. Preferably, the at least one air supply line 317 along the substrate 02 provided transport path between at least two air discharge lines 318 arranged. For example, the at least one air supply line 317 tubular sections and / or ends the at least one air supply line 317 in a funnel-shaped end region, which has a substantially larger cross-sectional area, than other sections of the at least one air supply line 317 , For example, the at least one air discharge line 318 tubular sections and / or begins the at least one air discharge line 318 in a funnel-shaped initial region having a substantially larger cross-sectional area than other portions of the at least one air discharge conduit 318 ,

Preferably, the at least one air supply line 317 at least one energy delivery device 317 and is at least one radiation source 302 also at least one energy delivery device 302 , In this case, the at least one dryer 301 then at least two energy delivery devices 302 ; 317 on. Preferably, the at least one air supply line 317 and / or the at least one air discharge line 318 each at least one flexible area, with which they are connected to a stationary air transport device. It is preferred on one of the at least one energy delivery device 302 ; 317 opposite side of the for the substrate 02 provided transport path at least one radiation shield 346 and / or at least one reflector 346 arranged. Preferably, at least one heat exchanger is arranged, by means of the air, the at least one air discharge line 318 flows through, can give energy to the air that the at least one air supply line 317 flows through.

At least one shut-off device is preferred 349 arranged, by means of a security area separated from an environment and / or can be separated. The security area is preferably one such area, which comprises at least each volume, that of the at least one energy delivery device 302 and optionally also of at least one of the at least one energy delivery device 302 carrying dryer rack 351 can be taken during the movements along the travel. More preferably, the security area also includes a larger space area. Preferably, the security area is from an environment through at least one closable opening in the shut-off device 349 walked on. This at least one opening is preferably by means of a closure device 352 , For example, at least one door 352 closable. A movement of the at least one energy-emitting device is preferred 302 in particular from its operative position and / or its access position and / or its retraction position only possible if the at least one closure device 352 is closed and / or if an arranged outside the security area signal generator is operated. The at least one closure device is preferred 352 only open when the at least one energy delivery device is arranged in its access position.

In particular by means of the printing press 01 is a preferred method of operating a printing press 01 feasible. This is a method for operating the printing press 01 , where the printing press 01 the at least one first printing unit 200 and the at least one dryer unit 300 and wherein the at least one dryer unit 300 the at least one first dryer 301 with at least the first energy delivery device 302 ; 317 having. In a first shutdown process, the at least one energy delivery device is preferred 302 ; 317 in particular by means of the at least one actuator from the operative position in the adjustment direction S along a linear travel by at least 5 mm, preferably by at least 50 mm and more preferably moved by at least 90 mm and independently, for example by at most 400 mm in the retraction position and stopped there. At least one web-shaped printing substrate is preferred in a subsequent pulling-in process 02 by means of at least one particular of each substrate 02 different Einziehmittels along the for the substrate 02 provided transport path through the Einwirkbereich the at least one energy delivery device 302 ; 317 moved in. Furthermore, in a first resetting operation taking place thereafter, the at least one first energy delivery device is preferred 302 ; 317 in particular by means of the at least one actuator from the retraction position counter to the direction of adjustment S along the same linear travel back into the action position moves back and stopped there.

It is preferred between the first shutdown process and a second shutdown process in at least one drying process in the area of action of the first energy delivery device 302 ; 317 Energy from the at least one first energy delivery device 302 ; 317 on the previously retracted web-shaped substrate 02 issued. Further preferred is the previously retracted web-shaped substrate 02 previously in the at least one printing unit 200 at least partially provided with at least one pressurized fluid.

The at least one first energy delivery device is preferred in a second shutdown process taking place in particular later 302 ; 317 in particular by means of the at least one actuator from the engagement position in the particular same adjustment direction S along the particular same linear travel by at least 450 mm, more preferably moved by at least 600 mm and even more preferably by at least 700 mm in a different from the retraction position access position and there stopped. At least one maintenance action on the at least one first energy delivery device is preferred in a first maintenance operation taking place thereafter 302 ; 317 made, for example, an exchange of at least one current-carrying component and / or a cleaning of a component. Furthermore, in a subsequent second reset operation, the at least one first energy delivery device is preferred 302 ; 317 in particular by means of the at least one actuator from the access position against the direction of adjustment S along the same linear travel back into the engagement position moves back and stopped there.

Preferably, the method is characterized in that the at least one retraction means in a connection operation by means of at least one connecting element with the at least one printing material web 02 is connected. Preferably, the at least one connecting element passes a printing position of the at least one print head 221 while it is parked by the intended transport path and / or arranged in at least one rest position and / or passes the at least one connecting element during the Einziehvorgangs at least one target area at least one nozzle of the at least one printhead 221 and / or does not happen during the Einziehvorgangs no part of the at least one retraction means a target area of a nozzle of the at least one print head 221 , The at least one connecting element preferably passes through an area of action of the at least one energy-emitting device 302 ; 317 the at least one first dryer 301 while this is in a trained as Einziehposition parking position. During the retraction process, no constituent of the at least one retraction agent preferably passes through the area of action of the at least one energy-emitting device 302 ; 317 , Preferably, only at least one retraction means is used, which is based on the axial direction A on only one side of the intended transport path for printing material 02 is arranged and / or its Einziehweg only on one side of the intended transport path for substrate 02 runs.

After the printing material web 02 the at least one first printing unit 200 has happened, the printing substrate 02 transported further along their transport path and preferably the at least one first dryer 301 the at least one dryer unit 300 fed. Preference is given to a one or more guiding and / or conveying comprehensive transport path for the substrate 02 so downstream of the last pressure point 201 formed, that the first, in the at least one first printing unit 200 printed side of the substrate web 02 after passing the last pressure point 201 up to the area of action of the at least one energy delivery device 302 ; 317 the at least one first dryer 301 with no part of the roll printing press 01 , in particular with no guidance and / or conveying means comes in touching contact. Preferably, the second, in particular of the first printing unit is 200 non-printed side of the substrate 02 after passing the last pressure point 201 up to the area of action of the at least one energy delivery device 302 ; 317 the at least one first dryer 301 with at least one web guiding means 257 , For example, at least one web guide roll 254 ; 256 ; 257 and / or the first draw roller 344 in contact.

Preferably, one for the substrate 02 provided transport direction in at least half and more preferably in at least 75% of the entire drying section at least one vertical, preferably downwardly facing component which is greater than any optional horizontal component of this transport direction. Preference is given to a motor-driven web guide roller 254 or draw roller 344 arranged by the substrate 02 and / or the intended transport path is wrapped with a wrap angle, which is preferably at least 45 °, more preferably at least 60 ° and even more preferably at least 75 °. This at least one motor-driven web guide roll 254 or draw roller 344 is preferred along the substrate 02 and / or along the for the substrate 02 provided transport path after the last guide elements of the pressure line 224 and in front of the area of action of the at least one dryer 301 arranged.

The at least one first dryer 301 preferably has at least one radiation source 302 on, preferably as a radiation source 302 for microwaves and / or for radiation in the visible range and / or in the ultraviolet range of the electromagnetic spectrum and / or more preferably as an infrared radiation source 302 is trained. The at least one first dryer 301 is preferred as an infrared radiation dryer 301 educated. A radiation source 302 , preferably infrared radiation source 302 is a device by means of the targeted energy, especially electrical energy in radiation, preferably infrared radiation is converted and / or convertible and on the substrate web 02 is directed and / or judged. The at least one radiation source 302 forms the at least one energy delivery device 302 , The at least one radiation source 302 preferably has a defined area of action. In particular, the exposure region is a radiation source 302 in each case the area containing all the points, in particular without interruption straight line directly or in particular provided for this purpose reflectors with the radiation source 302 can be connected. The area of action of the at least one first dryer 301 is preferably made up of the exposure areas of all radiation sources 302 the at least one first dryer 301 and / or from the Einwirkbereichen all air supply lines 317 the at least one first dryer 301 together. The area of action of the at least one first dryer 301 preferably has at least one radiation source 302 to one of the at least one radiation source 302 nearest part of the transport path of the printing substrate 02 ,

By at least one ventilation opening of the at least one air supply line 317 Air is preferably in the interior of the at least one first dryer 301 initiated. Inside the first dryer 301 is then, for example, by the infrared radiation from the printing substrate 02 removed to remove water and / or solvent of the printing inks and absorbed by the introduced air. This air is then passed through at least one vent opening and / or at least one air discharge line 318 from the at least one first dryer 301 dissipated.

In the transport direction of the printing material web 02 after the area of action of the at least one radiation source 302 the at least one first dryer 301 At least a first cooling device is preferably arranged. The at least one first cooling device preferably has the at least one first cooling roller 303 and preferably a first, to the at least one first cooling roll 303 adjustable and / or employed chill roller press and / or the at least one and in particular more to the at least one first chill roll 303 adjustable and / or employed pressure rollers 306 on.

The draw-in agent of any printing material is preferred 02 different. For example, the at least one pulling-in means is designed as at least one endless pulling-in means, for example as at least one endless pulling-in tape. The at least one retraction means is alternatively formed as at least one finite retraction means, for example as a finite pull-in tape and / or as a finite pull-in chain.

Preferably, at least one retraction drive is arranged, by means of which the at least one retraction means is arranged to be movable along the at least one retraction path. For example, in the case of an endless retracting means, it is sufficient if exactly such a retraction drive is arranged. Alternatively, the at least one retraction means is finally formed. Then at least one Einziehspeicher is preferably arranged, in which the at least one retraction means is at least temporarily arranged, in particular, as long as it is not used to a printing material web 02 collect. In an alternative embodiment, the at least one retraction means is designed as at least one finite pull-in chain. In the preferred case of the at least one endless drawing-in means, it is preferred for the at least one drawing-in means to draw in a printing material web 02 along the intended transport path of the printing material web 02 in particular permanently along its at least one pull-in path within the printing press 01 arranged.

At least one Einziehleitelement is preferably arranged, by means of which at least one Einziehweg the at least one retraction means can be fixed and / or fixed. The at least one Einziehleitelement is formed for example as at least one deflection roller. The at least one Einziehleitelement is alternatively formed as at least one chain rail. Preferably, the at least one Einziehleitelement is designed as at least one rotatable Einziehleitelement, for example as at least one deflection roller. In particular, a chain rail can also have switches for the realization of different Einziehwege.

This is preferably at least one drawing-in means for drawing in a printing material web 02 along the intended transport path of the printing material web 02 in particular permanently along its at least one pull-in path within the printing press 01 arranged. Preferably, the at least one retraction means in each case at least two and more preferably at least five provided connection points on which at least one printing material web 02 directly and / or via at least one connecting element with the at least one retraction means is connectable. Preferably, the printing press is characterized 01 characterized in that the at least two connection points with respect to the axial direction A or the transverse direction A have a distance of at most 10 cm, more preferably no more than 5 cm, even more preferably no more than 2 cm, and even more preferably no distance, and / or at least two connection points along the at least one Einziehwegs are spaced from each other.

Preference is given to drawing in the printing material web 02 through the at least one pressure unit 200 at least one as an inkjet printhead 221 trained printhead 221 the at least one printing unit 200 from the intended transport path of the at least one printing material web 02 switched off. After that, in a partial process of a drawing-in operation, at least one drawing-in means along a pull-in path through the at least one printing unit is preferred 200 moves and at the same time the at least one printing material web 02 along the for the at least one printing material web 02 drawn transport path. Preferably, the Einziehweg and the transport path in an axial direction A or transverse direction A are spaced apart.

Along the transport path of the printing material web 02 After an extraction nip and / or after a rewet device at least one post-processing device is arranged, which is preferably designed as a single or multi-stage folding device and / or has a sheet cutter and / or a chart display or is designed as a take-up device. In this and / or by this post-processing device, the printing substrate 02 preferably folded and / or cut and / or stapled and / or sorted and / or enveloped and / or shipped and / or wound up.

The working width of the printing press 01 and / or the at least one first printing unit 200 and / or a width of a substrate to be processed 02 is for example at least 1500 mm, preferably at least 2000 mm and more preferably at least 2500 mm. Through the arranged guide elements 241 , in particular in connection with the arranged inner support elements 274 and / or by the adjustment direction S of the at least one energy delivery device 302 and / or by the support body described below 616 and / or trusses 272 and / or suction elements 247 But even larger working widths and / or web widths are possible.

In the following, further exemplary and / or preferred details of the at least one printing unit 200 described.

For example, this has at least one printing unit 200 at least two with respect to the transport for the particular web-like substrate 02 provided transport path transport direction arranged one behind the other, preferably as inkjet printheads 221 trained print heads 221 on. Preferably, the at least one printing aggregate has at least four, more preferably at least eight, even more preferably at least ten, even more preferably at least twelve, and even more preferably at least fourteen with respect to the transport of printing material 02 provided transport path transport direction arranged one behind the other such printheads 221 on.

The at least one printing unit 200 preferably has at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 which is designed to be movable between at least one respective covering position and at least one respective access position. Preferably, several independently movable such protective covers 230 ; 232 ; 233 ; 234 ; 236 arranged. (Exemplary are in 8th and 9 four protective covers 232 ; 233 ; 234 ; 236 in their respective covering position and a protective cover 230 in its access position.) The at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 preferably has at least one trained in particular for entering by at least one operator and / or together with the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 movable tread 237 on. The respective at least one tread surface 237 the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 is preferably at least arranged in their respective covering position at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 at least partially in a vertical direction over at least one of the printheads 221 of the printing unit 200 and more particularly on at least one printhead 221 opposite side of the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 arranged. This will give access to the appropriate printheads 221 allows, for example, while still printing material in the at least one printing unit 200 is arranged. Especially with relatively wide printing units 200 is thus independent of the working width of the printing unit 200 an accessibility to the printheads 221 optimized.

In particular, this is characterized by at least one printing unit 200 preferably characterized in that arranged in their respective at least one access position protective cover 230 ; 232 ; 233 ; 234 ; 236 and / or tread 237 at least one maintenance opening 238 is released and at least one of the printheads 221 is accessible to an operator, for example, from one direction with at least one vertically downwardly facing component. In particular, then the side facing away from the respective nozzle surface of the respective print head 221 accessible. A nozzle surface is in particular a surface of a print head penetrated by nozzle openings 221 ,

A whole of the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 in the case of only one protective cover 230 ; 232 ; 233 ; 234 ; 236 just this one protective cover 230 ; 232 ; 233 ; 234 ; 236 and in case of multiple protective covers 230 ; 232 ; 233 ; 234 ; 236 the Entirety of these multiple protective covers 230 ; 232 ; 233 ; 234 ; 236 , Preferably, this is characterized by at least one printing unit 200 characterized in that at least two at least partially independently movable treads 237 the entirety of the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 at least at least in their respective Abdeckposition arranged at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 at least partially in a vertical direction over at least one of the printheads 221 of the printing unit 200 and in particular on a respective at least one printhead 221 opposite side of the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 are arranged. By independently movable treads 237 can, for example, a tread 237 used to carry one operator while another tread 237 at the same time with its protective cover 230 ; 232 ; 233 ; 234 ; 236 Folded over to work on one of the printheads 221 to enable. At another time, the functions of these two treads can 237 be reversed. Especially for large numbers of printheads 221 This results in a secure access to any printhead 221 ,

In particular, this has at least one printing unit 200 preferably at least two protective covers 230 ; 232 ; 233 ; 234 ; 236 which are each designed to be movable between at least one respective covering position and at least one respective access position and in each case at least one tread surface 237 further preferably, the respective at least one tread surface 237 at least at their respective Abdeckposition arranged each of the at least two protective covers 230 ; 232 ; 233 ; 234 ; 236 at least partially in a vertical direction over at least one of the printheads 221 of the printing unit 200 and even more preferably on at least one printhead 221 opposite side of the respective at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 are arranged.

This at least a tread 237 preferably has a particular average surface normal, the direction of which is arranged in their respective covering position protective cover 230 ; 232 ; 233 ; 234 ; 236 and / or tread 237 deviates from a vertical direction by at most 20 °, more preferably at most 10 ° and even more preferably at most 5 °. In particular, thus a stability of operators is increased. Preferably, the at least one tread surface 237 and in the case of several treads 237 preferably each of the multiple treads 237 a width that is at least 60%, preferably at least 75% and more preferably at least 90% of a working width of the printing unit 200 corresponds and / or is at least 40 cm, preferably at least 100 cm, more preferably at least 200 cm and even more preferably at least 250 cm. The width is preferably measured in the transverse direction A. In case of multiple treads 237 , For example, at least two or at least three treads 237 , this information applies to the orientation and / or the width of the treads 237 preferably for each of the plurality, in particular at least two or at least three treads 237 ,

In particular, at least 25%, preferably at least 50%, more preferably at least 75% and even more preferably at least 90% of the print heads 221 of the printing unit 200 arranged such that they in the vertical direction, in each case at least one of the at least one movable protective cover 230 ; 232 ; 233 ; 234 ; 236 are arranged in their respective covering position and / or arranged such that a respective projection of these print heads 221 in the vertical direction completely within a projection oriented in the same vertical direction of the entirety of the at least one movable protective cover arranged in its respective covering position 230 ; 232 ; 233 ; 234 ; 236 of the printing unit 200 in a same projection plane. This means in particular that the projection of the respective printhead 221 a subset of the projection of the protective covers 230 ; 232 ; 233 ; 234 ; 236 is and / or that a projection of the respective printhead 221 having an envelope within an envelope of the projection of the protective covers 230 ; 232 ; 233 ; 234 ; 236 in the same projection plane.

Preferably, at least one of the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 at least two treads 237 on, when arranged in its covering position protective cover 230 ; 232 ; 233 ; 234 ; 236 are arranged on pairs of different heights. Thus, the protective cover can also act as a staircase to access higher parts of the at least one printing unit 200 to enable. Alternatively or additionally, this has at least one printing unit 200 several protective covers 230 ; 232 ; 233 ; 234 ; 236 on, with the several protective covers 230 ; 232 ; 233 ; 234 ; 236 , at least if they are arranged in their respective Abdeckpositionen, respective treads 237 exhibit on these multiple protective covers 230 ; 232 ; 233 ; 234 ; 236 total in pairs are arranged at different heights. For example, this is characterized by at least one printing unit 200 characterized by the fact that the treads 237 several such protective covers 230 ; 232 ; 233 ; 234 ; 236 at least as far as these several such protective covers 230 ; 232 ; 233 ; 234 ; 236 are arranged in their respective covering positions, together form a staircase containing at least four, preferably at least five, more preferably at least six, even more preferably at least seven and even more preferably at least eight stages.

In particular, the respective stages are preferred by respective treads 237 educated. For example, individual steps are formed by surfaces, the fixed components of the printing unit 200 assigned. Preference is given to each tread 237 and / or each step on a respective individual, to other treads 237 and / or steps of different height. In particular, all treads are preferred 237 and / or stages arranged such that respective to the provided by a transport path for printing material 02 fixed transport direction related treads arranged further back 237 and / or steps are arranged further above, as respective in relation to the transport direction further upstream treads 237 and / or stages. The stairs therefore preferably increases in the provided by the transport path for printing material 02 as seen in the direction of transport.

Preferably, the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 formed pivotally between their respective covering position and their respective at least one access position. For example, the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 at least one cushioning element. The at least one cushioning element preferably serves to support and / or damp the movement, in particular the pivoting movement, of the respective at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 between their respective covering position and their respective at least one access position. The at least one cushioning element is designed, for example, as at least one gas spring.

For example, this is characterized by at least one printing unit 200 characterized in that the printing unit 200 at least three, preferably at least four, more preferably at least eight, even more preferably at least ten, even more preferably at least twelve, and even more preferably at least fourteen print heads arranged one behind the other with respect to the transport direction 221 for which applies in pairs, that a respective second, in the transport direction behind a respective first of these printheads 221 arranged printhead 221 is arranged above, as the respective first printhead 221 , For example, this is characterized by at least one printing unit 200 characterized in that along the transport direction at least three, more preferably at least four treads 237 the at least one protective cover arranged in its covering position 230 ; 232 ; 233 ; 234 ; 236 which together form a staircase having at least three, preferably at least four, more preferably at least five, even more preferably at least six, even more preferably at least seven and even more preferably at least eight stages. Preferably, each of the at least three, more preferably at least four or correspondingly more treads 237 in the vertical direction over at least one of the at least four or correspondingly more print heads 221 arranged. Alternatively or additionally, this is characterized by at least one printing unit 200 characterized in that the at least three, preferably at least four treads 237 along the transport direction in their respective tread position are arranged one behind the other and together form a staircase having at least three, preferably at least four, more preferably at least five, even more preferably at least six, even more preferably at least seven and even more preferably at least eight stages.

This preferably has at least one printing unit 200 at least three trained in particular for entering by at least one operator and / or together with the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 movable treads 237 which are each designed to be movable at least between a respective tread position and a respective access position. A tread 237 in pedaling means in particular a closed tread 237 and / or closed protective cover 230 ; 232 ; 233 ; 234 ; 236 , A tread 237 in the access position means in particular an open tread surface 237 and / or an open protective cover 230 ; 232 ; 233 ; 234 ; 236 , Preferably, each of the at least three treads 237 in their respective tread position at least partially in the vertical direction over at least one of the print heads 221 of the printing unit 200 and more particularly on at least one printhead 221 opposite side of the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 arranged. This preferably has at least one printing unit 200 the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 which is designed to be movable between the at least one respective covering position and the at least one respective access position, wherein the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 preferably at least one of the at least three in particular together with the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 movable treads 237 having.

Preferably, this is characterized by at least one printing unit 200 characterized in that at least 25%, more preferably at least 50%, even more preferably at least 75% and even more preferably at least 90% or all of the printheads 221 the at least one printing unit 200 are arranged so that they in the vertical direction, in each case at least one of the at least three movable tread surfaces 237 in their respective Kicking position are arranged. Preferably, this is characterized by at least one printing unit 200 characterized in that the at least three treads 237 are at least partially arranged independently movable and / or that the at least three treads 237 are formed pivotably between their respective tread position and their respective at least one access position and / or that the at least three tread surfaces 237 arranged in their respective tread positions arranged on pairs of different heights.

The at least one printing unit 200 preferably has the at least one for a transport of particular web-shaped substrate 02 provided transport path through which preferably the at least one transport direction is fixed. In the case of a curved transport path, the transport direction is preferably in each case that direction which runs tangentially to a section of the intended transport path which is closest to a respective reference point. This respective reference point is preferably at the point and / or on the component which is related to the transport direction. Preference is given to the intended transport path, in particular in the region of the pressure line 224 the at least one first printing unit 200 in a direction with at least one vertically upwardly facing component opposite a sequence of functional units extending in the transport direction 242 ; 243 ; 244 ; 292 arranged. These functional units 242 ; 243 ; 244 ; 292 are preferably components of the at least one printing unit 200 ,

Preferred is within this sequence of functional units 242 ; 243 ; 244 ; 292 in the transport direction one behind the other at least a first gas supply opening 242 and thereafter, preferably immediately after, at least one of printhead recesses 246 penetrated first portion of the shielding 292 arranged. This first section of the shielding device 292 is preferably substantially exclusively and more preferably up to Montageausnehmungen excluding Druckkopfausnehmungen 246 interspersed. Preferred is within this sequence of functional units 242 ; 243 ; 244 ; 292 in the transport direction thereafter, more preferably directly after, at least a first Gasabsaugöffnung 243 and thereafter, more preferably directly after, at least one flow shield 244 and thereafter, more preferably directly after, at least one second gas supply opening 242 and thereafter, more preferably directly after, at least one of printhead recesses 246 penetrated second section of the shielding 292 and thereafter, more preferably directly after, at least a second Gasabsaugöffnung 243 arranged. This second section of the shielding device 292 is preferably substantially exclusively and more preferably up to Montageausnehmungen excluding Druckkopfausnehmungen 246 interspersed.

In other words, this means that within this sequence of functional units 242 ; 243 ; 244 ; 292 in the transport direction one behind the other at least one of the first gas supply opening 242 trained functional unit 242 and thereafter, preferably immediately after, at least one as at least one of printhead recesses 246 penetrated first portion of a shielding device 292 trained functional unit 243 and thereafter, preferably directly after, at least one as at least a first Gasabsaugöffnung 243 trained functional unit 243 and thereafter, preferably directly after, at least one as at least one flow shield 244 trained functional unit 244 and thereafter, preferably directly after, at least one as at least one second gas supply opening 242 trained functional unit 242 and thereafter, preferably immediately after, at least one as at least one of printhead recesses 246 penetrated second section of the shielding 292 trained functional unit 292 and thereafter, preferably directly after, at least one as at least a second Gasabsaugöffnung 243 trained functional unit 243 is arranged. Preferably, a major surface of the at least one flow shield 244 a mean surface normal, which has at least one first component which is orthogonal to a mean surface normal of an at least downwardly facing surface of the at least one shielding device 292 is oriented. More preferably, this first component of the mean surface normal of the main surface of the flow shield 244 greater than any orthogonal component of these mean surface normals.

Preferably, this is characterized by at least one printing unit 200 characterized in that the sequence of functional units 242 ; 243 ; 244 ; 292 at least a subsequence of functional units 242 ; 243 ; 244 ; 292 has, in each case in the transport direction successively at least one gas supply opening 242 and at least one thereafter, further preferably directly following, following printhead recesses 246 penetrated portion of the shielding 292 and at least one subsequent, more preferably directly after, following Gasabsaugöffnung 243 and at least one thereafter, more preferably directly following, the following flow shield 244 having. The sequence of functional units preferably has successively in the transport direction, preferably directly adjacent to one another, at least three, more preferably at least four, even more preferably at least seven and even more preferably at least eleven such subsequences. The sequence of functional units preferably ends 242 ; 243 ; 244 ; 292 in the transport direction, for example, after a last such subsequence, in particular directly after a last such subsequence, with a sequential sequence of functional units 242 ; 243 ; 244 ; 292 in the transport direction successively at least one gas supply opening 242 and at least one thereafter, preferably immediately following, of printhead recesses 246 penetrated portion of the shielding 292 and at least one thereafter, preferably directly after, following Gasabsaugöffnung 243 having.

Preferably, this is characterized by at least one printing unit 200 characterized in that all functional units 242 ; 243 ; 244 ; 292 of the sequence are cut from a common reference plane whose surface normal is both orthogonal to the transport direction and horizontal.

Preferably, the printing unit is characterized 200 alternatively or additionally characterized in that the at least one first gas supply opening 242 a dimension extending in the transport direction of preferably at least 1 mm, more preferably at least 2 mm and even more preferably at least 4 mm and / or preferably at most 50 mm, more preferably at most 30 mm and even more preferably at most 20 mm and / or that the at least one gas supply opening 242 oriented in a horizontal and orthogonal to the transport direction transverse direction A over at least 30%, more preferably at least 50% and even more preferably at least 80% of the working width of the printing unit 200 extends. The dimension of the at least one gas supply opening 242 in the transverse direction A is a sum of all optionally present individual dimensions of optionally more in the transverse direction A juxtaposed gas supply openings 242 be in the transverse direction A.

Alternatively or additionally, this is characterized by at least one printing unit 200 preferably characterized in that the at least one shielding device 292 oriented in the horizontal and orthogonal to the transport direction transverse direction A over at least 60%, preferably at least 75%, more preferably at least 90% and even more preferably at least 100% of the working width of the at least one printing unit 200 extends and / or that at least one printhead 221 , more preferably at least two printheads 221 , more preferably at least ten printheads 221 and even more preferably at least twenty printheads 221 partially in one direction with a vertically downwardly directed component through a respective recess of the respective shielding device 292 protrude through or protrude. Preferably, a smallest distance is shielding device 292 at least 0.3 mm, more preferably at least 0.6 mm and even more preferably at least 1.0 mm and preferably at most 5 mm, more preferably at most 3 mm and even more preferably at most 2 mm from the transport path provided for transporting printing material. Preferably, a smallest distance of the print heads 221 at least 0.1 mm, more preferably at least 0.4 mm and more preferably at least 0.8 mm and preferably at most 5 mm, more preferably at most 2 mm and even more preferably at most 1.2, of the transport path provided for transporting printing material mm.

Alternatively or additionally, this is characterized by at least one printing unit 200 preferably characterized in that the at least one printing unit 200 at least one suction element 247 which is more preferred than at least one suction box 247 is trained. The at least one suction box 247 preferably has at least one inlet opening 243 on, which more preferably at least partially on the substrate 02 provided transport path and the at least one first Gasabsaugöffnung 243 and / or the at least one second gas suction opening 243 forms. The at least one inlet opening is preferred 243 in particular at its rear edge seen in the transport direction by the at least one flow shield 244 limited.

The at least one suction box 247 preferably has at least one outlet opening 259 further preferably to a respective connection opening 248 a particular common suction line 258 connected. Preferably, the at least one outlet opening 259 by means of a particular as a sealing ring 262 formed sealing element 262 sealed outlet connection to the respective connection opening 248 the suction line 258 connected. The suction line 258 is again preferably connected to a suction device, not shown. Preferably, the at least one suction box 247 in particular, while maintaining the mounting position of the suction line 258 and / or in a removal direction non-destructive of the suction line 258 and / or from the printing unit 200 removable.

The at least one inlet opening 243 the at least one suction box 247 preferably has a transverse dimension, wherein a transverse dimension is a dimension in the transverse direction A. The transverse direction A is again preferably orthogonal to the transport direction and / or orthogonal to each surface normal of the transport of the printing material 02 provided transport path and / or horizontally oriented. The at least one inlet opening 243 the at least one suction box 247 preferably has a longitudinal dimension orthogonal to the transverse dimension, wherein a longitudinal dimension is a dimension in the longitudinal direction and wherein the longitudinal direction preferably identical to the transport direction of the transport of printing material 02 provided transport path is. The transverse dimension of the at least one inlet opening is preferred 243 the respective at least one suction box 247 at least five times, more preferably at least ten times and even more preferably at least fifty times as great as the longitudinal dimension of the respective at least one suction box 247 , For example, the transverse dimension of the at least one inlet opening is at least 10 cm, more preferably at least 25 cm and even more preferably at least 50 cm and / or the transverse dimension of the at least one inlet opening is at most 300 cm, more preferably at most 200 cm and even more preferably at most 100 cm , For example, the longitudinal dimension of the at least one inlet opening is at least 0.5 mm, more preferably at least 1 mm and even more preferably at least 2 mm and / or the longitudinal dimension of the at least one inlet opening is at most 75 mm, more preferably at most 30 mm and even more preferably at most 10 mm.

Preferably, the at least one suction box 247 as at least one hollow body 247 formed, the at least one inlet opening 243 and at least one outlet opening 259 having. A suction direction points, for example, from the at least one inlet opening 243 to the at least one outlet opening 259 , Preferably, a middle suction direction of the at least one suction box 247 at least one component oriented in a vertically upward direction. Preferably, the at least one suction box is characterized 247 characterized in that a measured in the transverse direction A inner dimension of the at least one suction box 247 from the at least one inlet opening 243 to the at least one outlet opening 259 reduces and / or that an inner dimension measured in the longitudinal direction of the at least one suction box 247 from the at least one inlet opening 243 to the at least one outlet opening 259 increased. Further preferred is along at least 50% of a shortest straight line distance from the at least one inlet port 243 to the at least one outlet opening 259 an inner cross-sectional area of the at least one suction box measured orthogonally to this distance 247 up to a tolerance of at most 25%, more preferably at most 15%, even more preferably at most 10% and even more preferably at most 5% of the same size, in particular along at least 50% of the shortest rectilinear path from the at least one inlet opening 243 to the at least one outlet opening 259 the measured in the transverse direction A inner dimension of the at least one suction box 247 from the at least one inlet opening 243 to the at least one outlet opening 259 reduced.

For example, the at least one suction box 247 at least one rear boundary surface, the at least one suction box 247 and in particular its interior as seen in the transport direction limited. For example, the at least one suction box 247 at least one front boundary surface, the at least one suction box 247 and in particular whose interior is seen against the transport direction limited. For example, the at least one suction box 247 at least two side surfaces, the at least one suction box 247 and in particular limit its interior in and / or against the transverse direction A. Preferably, the at least two side surfaces are at least partially arranged so that their surface normal obliquely to each horizontal and each vertical direction and / or at an angle between 10 ° and 170 ° to each other. Preferably, the at least one outlet opening 259 formed as an opening of the at least one rear boundary surface. Alternatively or additionally, the at least one outlet opening 259 formed as an opening of the at least one front boundary surface. Preferably, a lower edge of the at least one rear boundary surface is the one for the transport of printing material 02 provided transport path closer than a lower edge of the at least one front boundary surface. A distance of the lower edge of the at least one rear boundary surface from the transport path provided for transporting printing material is preferably at least 0.1 mm, more preferably at least 0.4 mm and even more preferably at least 0.8 mm and preferably at most 5 mm preferably at most 2 mm and even more preferably at most 1.2 mm. Preferably, this distance is adjustable, for example via at least one in particular as a stop body 268 trained screw 268 ,

For example, a part of that component which forms the at least one rear boundary surface is at least partially as the at least one flow shield 244 educated. In this way, by the at least one flow shield 244 prevents from one in front of this at least one flow shield 244 arranged printhead 221 ejected pressurized fluid in a Einwirkbereich one behind this at least one flow shield 244 arranged printhead 221 passes, on the one hand through the flow shield 244 as a barrier and on the other hand, because of a suction effect through the interaction between the flow shield 244 and inlet opening 243 is favored. Furthermore, a risk is reduced or prevented that from a gas supply opening 242 originating gas or gas mixture from an opposite to the transport direction arranged inlet opening 243 is sucked off without a printhead 221 to happen. Thus, a short circuit of the flow is prevented or reduced.

This preferably has at least one printing unit 200 at least two, more preferably at least three suction boxes 247 auf, which at respective flow connections with a same common, a direction of flow predetermining flow path, leading to a suction suction line 258 are connected. Each of these flow connections preferably has a respective suction box 247 associated smallest cross-sectional area. Preferably, each along the flow path, in particular in the flow direction along the flow path closer to the suction arranged flow connection on a smaller smallest cross-sectional areas, than each along the flow path, in particular in the flow direction along the flow path further away from the suction device arranged flow connection. Preferably, this is characterized by at least one printing unit 200 characterized in that the at least two and in particular at least three suction boxes 247 in the transverse direction A are arranged side by side. Alternatively or additionally, this is characterized by at least one printing unit 200 preferably characterized in that the flow direction of the flow path of the suction line 258 has at least one component in a transverse direction A, which is larger than any optional component in a direction orthogonal thereto.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least two and in particular at least three suction boxes 247 respective inlet openings 243 have and that the inlet openings 243 the at least two and in particular at least three suction boxes 247 , each at flow connections with the same common suction line 258 are connected together over a length in a transverse direction A which is at least 80%, more preferably at least 90%, even more preferably at least 95% and even more preferably at least 100% of the working width of the printing unit 200 corresponds and preferably in a transverse direction A extends.

Unless explicitly stated otherwise, the information given above and below preferably applies to printheads arranged in their working position 221 and / or suction elements 247 , Unless explicitly stated otherwise, the information on openings made in the foregoing and in the following does not apply to openings filled with screws or other connecting elements and / or merely intended as points of application for screws or other connecting elements.

Preferably, this is characterized by at least one printing unit 200 that has the at least one suction box 247 has, alternatively or additionally characterized in that the at least one suction box 247 at least one inlet opening 243 has, at least partially on the substrate 02 provided transport path and / or that the at least one suction box 247 at least one outlet opening 259 in particular by means of a particular as a sealing ring 262 formed sealing element 262 sealed outlet connection to a respective connection opening 248 a suction line 258 is connected, which in turn is preferably connected to a suction device and / or that the at least one suction box 247 in particular, while maintaining the mounting position of the suction line 258 and / or in a removal direction non-destructive of the suction line 258 and / or from the printing unit 200 is removable. More preferably, the at least one suction box 247 without detachment from screw connections and / or without detachment from others with the suction box 247 and / or the suction line 258 connected components of the printing unit 200 from the suction line 258 and / or from the printing unit 200 removable.

Preferably, the at least one suction box 247 in each case by at most three successive linear movements, more preferably in each case at most two successive linear movements and even more preferably by in each case at most one linear movement of the at least one suction box 247 from the suction line 258 and / or from the printing unit 200 removable. For example, a middle of three suction boxes relative to the transverse direction A is 247 by exactly one linear movement of the at least one suction box 247 from the suction line 258 and / or from the printing unit 200 removable. For example, two are on the transverse direction A outer of three suction boxes 247 by two or three successive linear movements of the respective two suction boxes 247 from the suction line 258 and / or from the printing unit 200 removable. Due to the additional movement of the outer suction boxes 247 can be an installation position of the suction boxes 247 be chosen so that their respective inlet openings 243 are arranged as close to each other, yet at least one spacer 613 is angeordet that he is in the transverse direction A respectively between the middle suction box 247 and a respective one of the outer suction boxes 247 is arranged. The middle suction box 247 can then simply linear from the printing unit 200 For example, while the outer suction boxes each have a spacer 613 at least partially, which in each case requires more than one linear movement. Alternatively, the two outer suction boxes each in a respective linear direction are removed from the printing unit, which are not parallel to each other and which are not parallel to the direction in which the central suction box 247 from the printing unit 200 is removable. The shape and orientation of the side walls of the suction boxes 247 supports the possibility of intake openings 243 close to each other and yet spacers 613 between the suction boxes 247 to arrange.

Preferably, the printing unit is characterized 200 characterized in that the respective connection opening 248 the suction line 258 and / or the respective outlet opening 259 of the respective suction box 247 each has in a connecting direction, which has at least one first component in or against the transport direction. More preferably, this first component is larger than any component of the connection direction which may be present in any direction orthogonal to the transport direction.

The direction in which a respective opening points is preferably the surface normal to a virtual opening plane. The virtual opening plane is an imaginary or virtual plane that deviates as little as possible from an edge enclosing the opening. The deviation is preferably summed or integrated over the entire edge enclosing the opening. Thus, if the edge enclosing the aperture is all in one plane, the cumulative deviation is zero and this plane is the virtual aperture plane. If, on the other hand, the edge enclosing the opening is not located exclusively in one plane, but is contained exclusively in at least one curved surface, then the virtual opening plane is the plane into which the edge surrounding the opening can be projected, so that this projection of the opening surrounding margins of the actual surrounding the opening edge over all points of the edge surrounding the opening or integrated as little as possible deviates.

Preferably, the at least one suction box 247 in a removal direction from the printing unit 200 removable and happens any projection of the at least one suction box 247 in the removal direction, any component of the suction line 258 , This allows the suction line 258 at a removal of the respective suction box 247 remain unchanged in their position. This reduces an effort to remove the respective suction box 247 , Regarding those suction boxes 247 For example, if they require more than one linear movement to pick them up, the picking direction will be that direction of the last linear picking movement.

The simple removal is in particular a simple cleaning of the suction boxes 247 possible. For this purpose, the suction boxes 247 preferably as closed exclusively by clamping or by a few screw, easy-open hollow body 247 educated. You can therefore easily from the printing unit 200 removed, simply opened and cleaned. Cleaning, for example, makes sense after a certain number of operating hours, such as through the at least one gas supply opening 242 inflowing and at the at least one shielding device 292 along flowing air travels fine ink mist, which acts as a gas suction port 243 trained inlet opening 243 of the respective suction box 247 arrives and settles there.

Alternatively or additionally, this is characterized by at least one printing unit 200 Preferably characterized in that at least one in particular reversibly deformable and / or elastic sealing element 262 between the at least one suction box 247 and the at least one suction line 258 is trapped and that at least one clamping element 264 on a the at least one sealing element 262 opposite side of the at least one suction box 247 between the at least one suction box 247 on the one hand and at least one support body 266 on the other hand is clamped and that the at least one clamping element 264 on at least one in particular reversibly deformable and / or elastic and / or as a spring element 267 trained Einlenkelement 267 is arranged. The at least one Einlenkelement 267 is preferably rigid at at least one location on the at least one suction box 247 or on the at least one support body 266 arranged and connected to this. This allows a particularly simple trained system for clamping the at least one suction box 247 , The at least one sealing element 262 is preferably a sealing ring 262 having a circumferential sealing lip, wherein the sealing lip on an axis of symmetry of the sealing ring 262 corresponds to a rotationally symmetric portion of a conical surface. More preferably, the conical shell preferably has an opening angle between 10 ° and 170 °, more preferably between 30 ° and 160 °, even more preferably between 60 ° and 150 ° and even more preferably between 80 ° and 140 °.

Also preferred is a method for arranging at least one suction box 247 in a printing unit 200 , wherein the at least one suction box 247 in an insertion direction in the printing unit 200 is moved until at least one contact body 269 at least one respective stop body 268 , For example, at least one respective screw 268 touched and thereby at least one clamping element 264 carrying Einlenkelement 267 is deflected from an equilibrium position and wherein thereafter at least one outlet opening 259 the at least one suction box 247 in a sealing direction with at least one orthogonal to the insertion direction component on at least one connection opening 248 a suction line 258 to be moved and wherein on the one hand a flow connection is made and on the other hand, the at least one clamping element 264 by a relaxation movement of the at least one Einlenkelements 267 in a clamping position between the at least one suction box 247 and at least one support body 266 arrives. The at least one clamping element 264 is preferred there by a restoring force of the outlet opening 259 with the connection opening 248 connecting sealing element 262 clamped. For example, at least one guide pin is arranged, which cooperates with at least one elongate guide recess as a guide for the pressing movement used. For example, the guide pin on the at least one support body 266 arranged and is the at least one guide recess on the at least one suction box 247 arranged.

The at least one printing unit 200 preferably has at least two, in particular at least three suction boxes 247 on, wherein the at least two and in particular at least three suction boxes 247 respective inlet openings 243 have, at least partially, on the for printing material 02 to provide designated transport route. The at least one printing unit 200 is preferably characterized in that the inlet openings 243 the at least two and in particular at least three suction boxes 247 extend together over an inlet length which is at least 80%, more preferably at least 90%, even more preferably at least 95% and even more preferably at least 100% of the working width of the printing unit 200 equivalent. The at least three suction boxes 247 are preferred with their respective outlet openings 259 each at flow connections with the same common suction line 258 connected. The inlet length preferably extends in the transverse direction A. Preferably, the at least one suction box 247 and are more preferably the at least two, in particular at least three suction boxes 247 in particular, while maintaining the mounting position of the suction line 258 and / or in a removal direction non-destructive of the suction line 258 and / or from the printing unit 200 removable.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the printing unit 200 at least one traverse 272 which extends from a first side wall 271 a frame 283 of the printing unit 200 to a second side wall 271 of the frame 283 of the printing unit 200 extends. Further preferred are the at least two and in particular at least three suction boxes 247 at the at least one Traverse 272 attached, for example, only on the at least one traverse 272 attached.

The at least one traverse 272 preferably has at least a first cross member 611 and at least a second cross member 612 on. The at least first cross member 611 on the one hand and the at least one second cross member 612 on the other hand are preferably arranged spaced apart in the transport direction. For example, at least one spacer 613 between the at least one first cross member 611 and the at least one second cross member 612 arranged. More preferably, the at least one spacer 613 with the at least one first cross member 611 and the at least one second cross member 612 connected, in particular rigid. Between the at least one first cross member 611 and the at least one second cross member 612 results, for example due to the at least one spacer 613 , preferably at least one interior of the respective traverse 272 , This is preferably at least one, for example, as a suction box 247 trained suction element 247 at least partially within the interior of the at least one traverse 272 and / or in the transport direction at least partially between the at least one first cross member 611 and the at least one second cross member 612 arranged. In particular, by the arrangement of several suction boxes 247 , for example, three suction boxes 247 in the transverse direction A next to each other can in the transverse direction A more spacers 613 at least partially within the traverse 272 be arranged and yet a total of almost the entire working width of the printing unit 200 with gas suction openings 243 or inlet openings 243 be covered. At least three, more preferably at least four spacers are preferred in the transverse direction 613 each traverse 272 arranged side by side.

Preferably, the printing unit is characterized 200 characterized in that each of the at least two and in particular at least three suction boxes 247 a respective inlet opening 243 which in itself extends over an inlet length in a transverse direction A which is at most 60%, more preferably at most 50%, and still more preferably at most 40% of the working width of the printing unit 200 equivalent.

For example, at least one shielding device 292 arranged such that they on at least a first cross member 611 one first traverse 272 is fixed, in particular rigidly, and that it is attached to a second cross member 612 a second traverse 272 is attached, in particular rigid. This is the first traverse 272 rigid with the second crossbar 272 connected. Preferably, the second traverse 272 again in the same way by means of another or the same shielding 292 with a third traverse 272 connected. In this way, then all three traverses 272 connected with each other. The more trusses 272 connected in this way, the more stable the entire structure. In this way, a very stable and the stability of the entire frame 283 supporting structure are formed. At least three traverses are preferred 272 in this way via common and / or respective shielding devices 292 interconnected, more preferably at least five, even more preferably at least seven, even more preferably at least nine and even more preferably at least thirteen.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one printing unit 200 at least one frame 283 has, at least two side walls 271 having. Between these at least two side walls 271 runs preferably for a transport of particular web-shaped substrate 02 intended transport path at least partially. This preferably has at least one printing unit 200 at least two, more preferably at least three, even more preferably at least four, even more preferably at least seven and even more preferably at least eleven traverses 272 on, each at least in the transverse direction A between the side walls 271 extend and which are arranged one behind the other with respect to the transport direction and which are preferably each with both of the at least two side walls 271 of the frame 283 in particular rigidly connected.

The at least one printing unit 200 preferably has at least three, more preferably at least four, even more preferably at least six, and even more preferably at least eight with respect to the transport direction arranged one behind the other and / or spaced apart in the transport direction printheads 221 on. Preference is given to each traverse 272 , in particular at each of the at least three traverses 272 at least one first auxiliary device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 arranged, the at least one in the transport direction in front of this particular of the particular at least three traverses 272 arranged front printhead 221 assigned. In particular, at least each of the at least three traverses is preferred 272 at least one second additional device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 arranged, the at least one in the transport direction behind this particular of the particular at least three traverses 272 arranged rear printhead 221 assigned. In other words, this means that preferably each of the traverses, in particular at least two or at least three traverses 272 as a holder for each at least one such first auxiliary device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 and as a holder for at least one such second auxiliary device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 is trained.

The at least one first additional device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 and / or the at least one second additional device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 is for example as at least one support element 601 ; 602 and / or as at least one cleaning device 263 and / or as at least one guide 603 a cleaning device 263 and / or as at least one cleaning drive 604 a cleaning device 263 and / or as at least one torque transmitter 607 and / or as at least one printhead shutter 608 and / or as at least one nozzle closure 608 and / or as at least one suction box 247 educated. This is at least one support element 601 ; 602 preferably as at least one support roller 601 and / or as at least one support stop 602 trained and / or is the at least one torque converter 607 preferred as at least one synchronous shaft 607 formed, which in the transverse direction A more preferably over at least 50%, more preferably at least 75% and even more preferably at least 90% of the working width of the printing unit 200 extends. Such a torque transmitter 607 is for example part of at least one Abstellantriebs 614 and / or with at least one Abstellantrieb 614 arranged in operative connection.

Preferably, this is characterized by at least one printing unit 200 characterized in that in the transport direction between the trusses 272 each print head spaces 609 are arranged and that a respective Traverse 272 the at least three traverses 272 to one in the transport direction in front of the respective Traverse 272 arranged printhead space 609 adjacent and / or to a transport direction behind the respective traverse 272 arranged printhead space 609 borders. Preferably, the at least one front print head 221 in the respective front print head space 609 arranged and / or arranged and is the at least one rear printhead 221 in the respective rear printhead space 609 arranged and / or can be arranged. At the beginning and / or end of a sequence of such traverses 272 For example, a first edge crossbar is arranged, the no printheads 221 are arranged upstream in the transport direction or, for example, a second edge cross member is arranged, the no printheads 221 downstream in the transport direction. The transverse direction A is preferred orthogonal to each by the for substrate 02 provided transport path defined transport direction and horizontally oriented.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that each of the trusses 272 and preferably each of at least two traverses 272 at least a first cross member 611 and at least one of these, in particular in and / or opposite to the transport direction spaced second cross member 612 which further preferably together at least one interior of the respective traverse 272 at least partially in and against the transport direction limit. Preferably, in the respective at least one interior, at least one component of a gas transport device and / or at least one additional device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 for supplying at least one printhead 221 with energy and / or operating fluids and / or pressure fluid and / or data and / or at least one gas and / or at least one internal additional device 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 for cleaning and / or maintenance and / or for at least temporary covering of at least one print head 221 arranged. An additional device 608 for at least temporary coverage of at least one printhead 221 is, for example, an optional device movable between a shutter position and a standby position 608 ,

For example, the at least one internal attachment 247 ; 263 ; 601 ; 602 ; 603 ; 604 ; 607 ; 608 as at least one cleaning device 263 and / or as at least one guide 603 a cleaning device 263 and / or as at least one cleaning drive 604 a cleaning device 263 and / or as at least one torque transmitter 607 and / or as at least one printhead shutter 608 and / or as at least one nozzle closure 608 educated. For example, the at least one component of the gas transport device is at least one suction box 247 , For example, this is characterized by at least one printing unit 200 characterized in that between each two adjacent in the transport direction of the at least two trusses 272 , and in particular between one of a respective first traverse 272 associated first cross member 611 and one of a respective second traverse 272 associated second cross member 612 , one printhead space each 609 lies, in each case at least one printhead 221 arranged and / or can be arranged.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that at least one spacer 613 between the respective at least one first cross member 611 and the respective at least one second cross member 612 is arranged. For example, the respective at least one spacer stands 613 with the respective at least one first cross member 611 and the respective at least one second cross member 612 in contact. The respective at least one spacer is preferred 613 with the respective at least one first cross member 611 and the respective at least one second cross member 612 connected, in particular rigidly connected. Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one spacer 613 a distance to each of the at least two side walls 271 comprising at least 20%, more preferably at least 25% and even more preferably at least 30% of the working width of the printing unit 200 equivalent. This does not necessarily apply to any of these spacers 613 but preferably at least one and more preferably at least two of the spacers 613 , Preferably, each traverse 272 at least two, more preferably at least three and even more preferably at least four in the transverse direction A juxtaposed such spacers 613 on. Under a side wall 271 is in particular also such a component of the frame 283 to understand that has relatively large holes and / or whose shape deviates relatively strongly from a flat surface. side walls 271 are preferably opposite to each other in the transverse direction A, wherein preferably for the transport of particular web-shaped substrate 02 provided transport path is arranged between them.

For example, the at least one first cross member 611 constructed in several parts, in particular such that each item of the at least one first cross member 611 less than the distance from one of the two side walls 271 to the other of the two side walls 271 extends, but the respective at least one first cross member 611 in total from one of the two side walls 271 to the other of the two side walls 271 extends. For example, the at least one second cross member 612 constructed in several parts, in particular such that each item of the at least one second cross member 612 less than the distance from one of the two side walls 271 to the other of the two side walls 271 extends, but the respective at least one second cross member 612 in total from one of the two side walls 271 to the other of the two side walls 271 extends. For example, then serve one or more spacers 613 as connecting pieces between individual parts of a respective first cross member 611 and / or as connecting pieces between individual parts of a respective second cross member 612 ,

Preferably, the at least one first cross member extends 611 over a length in the transverse direction A, the at least 80%, more preferably at least 90%, even more preferably at least 95%, and even more preferably at least 100% of the working width of the at least one printing unit 200 equivalent. Preferably, the at least one second cross member extends 612 over a length in the transverse direction A, the at least 80%, more preferably at least 90%, even more preferably at least 95%, and even more preferably at least 100% of the working width of the at least one printing unit 200 equivalent.

The at least one printing unit 200 that prefers the at least one frame 283 with at least two side walls 271 has, preferably, the at least one traverse 272 on, extending at least in the transverse direction A between the side walls 271 and further preferably each with both of the two side walls 271 of the frame 283 is connected, in particular rigidly connected. More preferably, the at least one printing unit 200 at least two, even more preferably at least three, even more preferably at least four, even more preferably at least five, even more preferably at least six and even more preferably at least seven traverses 272 on, each at least in the transverse direction A between the side walls 271 extend and preferably each with both of the two side walls 271 of the frame 283 are connected, in particular rigidly connected.

This preferably has at least one printing unit 200 at least one relative to the frame 283 in at least one Abstellrichtung C movable support body 616 on, extending at least in the transverse direction A between the side walls 271 extends and more preferably from a side wall 271 to another sidewall 271 extends. More preferably, the printing unit 200 at least two, even more preferably at least four, even more preferably at least eight and even more preferably at least twelve such support bodies 616 on. Preferably, the at least one movable support body extends 616 in the transverse direction A over at least 75%, more preferably at least 90% and even more preferably at least 100% of the working width of the at least one printing unit 200 , Preferably, the at least one support body 616 by means of at least one Abstellantriebs 614 , in particular linear actuator 614 relative to the frame 283 in the at least one Abstellrichtung C movable. Preferably, the at least one support body 616 linearly movable. Preferably, the Abstellrichtung C at least one vertically upwardly facing component and / or the Abstellrichtung C is a stroke direction C. Preferably, the Abstellrichtung C is oriented orthogonal to the transverse direction A. At least one printhead is preferred 221 on the at least one support body 616 arranged and together with the at least one support body 616 movable. For example, the at least one support body 616 and the printheads arranged thereon 221 a respective nozzle bar 231 ,

At least one of the at least one support body preferably forms 616 arranged first contact point 617 and at least one on the at least one traverse 272 arranged second contact point 618 at least a first pair of contact points 619 , which is opposite to each other in the Abstellrichtung C and is in contact and / or can be brought. The at least one first pair of contact points 619 is preferably used to a particular linear path, along which the at least one support body 616 in and / or counter to the Abstellrichtung C is movable to limit at least with respect to a vertically downward direction. During a printing operation of the at least one printing unit 200 the at least one on the at least one support body 616 arranged first contact point 617 and the at least one on the at least one traverse 272 arranged second contact point 618 preferably in contact with each other. In this way, a distance of the print heads to the substrate is preferred 02 established. In particular, by this contact point pair 619 a deflection of the support body 616 restricted or prevented in the Abstellrichtung C especially during the printing operation and / or a distance of the print heads 221 this support body 626 to the substrate 02 especially during printing over the working width equal or at least significantly less variable.

At least one of the at least one support body preferably forms 616 arranged third contact point 621 and at least one on the at least one traverse 272 arranged fourth contact point 622 at least a second pair of contact points 623 which is opposite to each other, at least temporarily, at least in a support direction orthogonal to the parking direction C and orthogonal to the transverse direction A, and is in contact with each other and / or engageable. For example, this has at least one printing unit 200 at least two traverses 272 on and is this at least a Traverse 272 , at the fourth contact point 622 is arranged, another of the at least two traverses 272 as the traverse 272 at which the at least one second contact point 618 in particular for this support body 616 is arranged. In this way, in particular in those cases in which the respective support body 616 is movable in a deviating from the vertical direction Abstellrichtung C, a deflection of the support body 616 restricted or prevented in a direction orthogonal to the Abstellrichtung C. This is a position all printheads 221 this support body 616 along the transport path in particular during the printing operation equal or at least significantly less variable. This increases one by means of the printing unit 200 achievable print quality.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one second contact point 618 through the at least one traverse 272 itself and / or by at least one on the at least one traverse 272 arranged and more preferably as a support stop 602 trained support element 602 is fixed. Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one third contact point 621 by at least one on the at least one support body 616 arranged pivotable and / or rotatable, preferably as a support roller 601 trained support element 601 is determined and / or that the at least one fourth contact point 621 by at least one on the at least one traverse 272 arranged pivotable and / or rotatable, preferably as a support roller 601 trained support element 601 is fixed. Preferably, the printing unit 200 per carrier 616 at least three, more preferably at least four and even more preferably at least six on the at least one traverse 272 arranged and as support stops 602 trained support elements 602 for forming at least three, more preferably at least four, even more preferably at least six such second contact points 618 on.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one first pair of contact points 619 with respect to the transverse direction A of each side wall 271 has a respective distance, the at least 20%, more preferably at least 30% and even more preferably at least 40% of the working width of the printing unit 200 equivalent. This does not necessarily apply to each of these first pairs of contact points 619 to, but preferably to at least one, and more preferably to at least two of these first contact pad pairs 619 , Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one second contact point pair 623 with respect to the transverse direction A of each side wall 271 has a respective distance, the at least 20%, more preferably at least 30% and even more preferably at least 40% of the working width of the printing unit 200 equivalent. This does not necessarily apply to every other pairs of contact points 623 too, but preferably at least one.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one support body 616 along the transverse direction A has a stiffening region over at least 60%, more preferably at least 75% and even more preferably at least 90% of its length. Preferably, longitudinal planes are planes whose surface normals have a direction parallel to the transverse direction A. Preferably, each such longitudinal sectional plane intersecting the stiffening region forms with the at least one supporting body 616 a respective entirety of one or more cut surfaces extending in the vertical direction over at least 5 cm, more preferably at least 10 cm, even more preferably at least 15 cm and even more preferably at least 20 cm. As a result, the at least one support body 616 particularly stable and secured against, for example, caused by gravity deflections.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one support body 616 as at least one interior enclosing a cage is formed and that the at least one print head 221 is arranged with at least 80% of its volume within this interior. Under a cage is to be understood in particular a permeated with openings structure. The at least one interior preferably has a substantially cuboidal structure. A cage is, for example, an all-round container whose sides are more or less perforated. The training as a cage is a particularly high stability with low weight of the support body 616 and good accessibility to the arranged in the interior of the cage printheads 221 guaranteed.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one support body 616 at least one ground segment 624 comprising, the at least one printhead opening 626 comprising, which is the at least one ground segment 624 opens in a direction with at least one component vertically downward direction and / or opposite the Abstellrichtung C and through which the at least one print head 221 is arranged partially protruding. More preferably, the at least one printhead 221 such by the at least one printhead opening 626 arranged projecting that an ejection direction of at least one nozzle of the at least one print head 221 has at least one vertically downwards and / or opposite to the Abstellrichtung C oriented component. This allows the print heads despite the stable arrangement 221 at a suitable distance to that for the transport of printing material 02 provided transport route and / or the substrate 02 Arrange. Preferably, the at least one print head 221 by means of a respective printhead 221 associated bracket the ground segment of the support body 616 arranged. For example, the at least one holder has options for adjusting the orientation of the respective print head 221 on.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one support body 616 at least one access opening 627 comprising the at least one support body 616 opens in an at least one component vertically upwards and / or in the Abstellrichtung C facing access direction D and by the further preferred the at least one print head 221 from the at least one support body 616 is removable. This allows a particularly easy change of printheads 221 , This is especially true in connection with the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 , which is preferably designed to be movable between at least one respective covering position and at least one respective access position and / or preferably at least one in particular designed for entering by at least one operator and / or together with the at least one protective cover 230 ; 232 ; 233 ; 234 ; 236 movable tread 237 having.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one support body 616 at least one escape opening 616 comprising the at least one support body 616 opens in a with at least one component horizontally and / or orthogonal to the Abstellrichtung C extending deflection direction E. This facilitates, for example, installation and / or removal of components and / or accessories of individual print heads 221 ,

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one movable support body 616 via at least one respective, in particular as at least one rail 629 trained leadership institution 629 with the at least two side walls 271 communicates.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the at least one support body 616 is arranged movably in and against the Abstellrichtung C between at least one insertion position and at least one parking position and that at least one maintenance device 263 and / or cleaning device 263 of the printing unit 200 and / or at least one printhead closure 608 and / or at least one nozzle closure 608 of the printing unit 200 when arranged in the parking position supporting body 616 in one of this support body 616 arranged in its use position at least partially occupied space area arranged and / or movable.

At least one measuring device for measuring a position of the at least one supporting body is preferred 616 arranged along that particular linear path, along which the respective support body 616 is movably arranged. For example, such a measuring device is a linear encoder. Preferably, at least one limit switch is arranged at least at one end and / or at both ends of this particular linear path, in particular for switching off the Abstellantriebs 614 , Preferably, for example, at least one ball screw is arranged, which has at least one ball screw and / or at least one ball nut. The at least one ball screw is preferably part of the at least one Abstellantriebs 614 and / or with the at least one parking drive 614 connected. For example, the printing unit per support body 616 two points of attack for one or more parking drives 614 on, in particular at its two related to the transverse direction A ends. For example, each support body 616 a parking drive 614 arranged. At least one is preferred as a synchronous shaft 607 trained torque transducer 607 arranged, in particular to the Abstellantrieb 614 Distribute applied torque to two points of attack, where each torque in a linear movement of the support body 616 is converted.

For example, the at least one Abstellantrieb 614 an electric motor and / or preferably directly or via a transmission with the synchronous shaft 607 coupled. The synchronous shaft 607 extends for example in the transverse direction A over at least 80%, more preferably at least 90% and even more preferably at least 100% of the working width of the printing unit 200 , The synchronous shaft 607 For example, each is directly or via at least one preferred as a belt 632 , in particular toothed belt 632 trained torque transducer 632 with at least one screw, in particular ball screw and more preferably connected to two such screw drives. These two screw drives are preferably each one of the two side walls 271 of the frame 283 assigned. By a total of four pulleys per belt, which are arranged along the belt rotated by 90 °, a space-saving arrangement for deflecting the torque can be realized. For example, two of the deflection rollers have a respective axis of rotation, which is oriented horizontally, and two other of the deflection rollers have a respective axis of rotation, which is oriented parallel to the Abstellrichtung C. Under pulleys should also be understood gears. For example, at least one of the deflection rollers displaceable orthogonal to its axis of rotation. As a result, on the one hand a tension of the belt can be adjusted and on the other hand the belt can be exchanged without complete removal of one of the deflection rollers. The synchronous shaft is preferred 307 and the belts 632 each protected by a cover. When activating the Abstellantriebs becomes the synchronous shaft 607 set in rotation, whereby the two belts drive the two screw drives and thereby the support body 616 is raised at both ends. Positioning aids are preferably arranged, which in a lowering of the at least one support body 616 ensure its exact position in its operational position.

The printing unit preferably has at least one preferably as a printhead closure 608 and / or as a nozzle closure 608 trained additional equipment 608 on. A nozzle closure 608 is preferably a device which is a cover of a nozzle or more nozzles of at least one printhead 221 serves. A printhead lock 608 Preferably, a device is the cover of a printhead 221 or multiple printheads 221 serves. In this way, for example, one or more nozzles of one or more printheads 221 Protected from contamination and / or from drying, especially if it is expected that no longer operation of this nozzle and / or this printhead 221 is to be expected. This is for example when switching off the printing unit 200 the case. The at least one printhead lock 608 and / or nozzle closure 608 is preferably movable between a standby position and at least one closure position, in particular pivotable. Preferably, the at least one printhead closure 608 and / or nozzle closure 608 pivotable about a pivot axis and / or by means of at least one shutter drive 606 movable. Preferred are multiple printhead seals 608 and / or nozzle closures 608 movable together and / or attached to a common movable body, which is correspondingly movable. The at least one shutter drive 606 is preferably designed as at least one linear drive, for example as at least one pneumatic cylinder and / or at least one hydraulic cylinder and / or as at least one electric linear drive.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the printing unit 200 per carrier 616 at least one on the at least one traverse 272 arranged closure holder 631 at least one for contact with one of the at least one traverse 272 arranged printhead lock 608 and / or nozzle closure 608 provided in particular fifth contact point forms. Further preferred is the respective printhead closure 608 and / or nozzle closure 608 at another then at least two traverses 272 arranged and / or in particular rotatably mounted, as the this printhead closure 608 and / or nozzle closure 608 associated closure holder 631 , More preferably, the printing unit 200 per carrier 616 at least three, even more preferably at least six such on the at least one traverse 272 arranged closure holder 631 on. Preferably, the at least one closure holder limits 631 a movement space of the at least one print head closure 608 and / or nozzle closure 608 at least in one direction. More preferably, the at least one closure holder is used 631 as a bearing surface of the at least one print head closure 608 and / or nozzle closure 608 in its closed position.

Preferably, the at least one support body 616 be arranged in at least three positions provided, which differed with respect to their Abstellrichtung C relative position. Preferably, the at least one support body 616 via at least one energy chain with the frame 283 connected. The at least one energy chain is therefore preferred on the one hand with the at least one support body 616 and on the other hand directly or indirectly to the frame 283 rigidly connected. At least one fluid line per support body is preferred 616 arranged so that they are in the transverse direction A over at least 50% of the working width of the printing unit 200 extends and that a plurality or more preferably each of this support body 616 arranged printhead 221 is connected by means of a connecting line with this fluid line. Preferably, the respective connecting line of the support body 616 at a respective first end of the respective support body 616 via a flexible section with one on the frame 283 connected conduit system connected. Further preferred is in each case a connecting line of a supporting body 616 with a connecting line of an adjacent support body 616 connected, in particular at a respective relative to the transverse direction A second end of the supply line. In this way, with a correspondingly large flow rate, a continuous flow of pressurized fluid through the supply line of the two support body 616 be achieved. For this purpose, pressurized fluid from the line system is preferably fed into a supply line of a carrier body 616 and there to the respective printheads 221 transported and is preferably additionally pressurized fluid through the supply line of this support body 616 to the supply line of the adjacent support body 616 and there to the respective printheads 221 transported and is preferably additionally pressurized fluid through the supply lines of both support body 616 and transported back to the pipe system that is on this way only on one side of the frame 283 must be arranged.

Preferably, this is characterized by at least one printing unit 200 alternatively or additionally characterized in that the Abstellrichtung C of the respective support body 616 has at least one component which is parallel to a surface normal of a tangent surface to a the support body 616 next digit of the substrate 02 intended transport path is oriented. More preferably, a deviation of the Abstellrichtung C from the direction of this respective surface normal at most 40, more preferably at most 25 °, even more preferably at most 10 ° and even more preferably at most 1 °.

A first of these at least three intended positions of the at least one support body 616 is preferably a use position. This is preferably characterized in that arranged in the use position support body 616 the on this support body 616 arranged printheads 221 are arranged in their respective printing position and / or the at least one of the at least one support body 616 arranged first contact point 617 and the at least one on the at least one traverse 272 arranged second contact point 618 in contact with each other and / or the at least one of the at least one support body 616 arranged third contact point 621 and the at least one on the at least one traverse 272 arranged fourth contact point 622 in contact with each other. The at least one supporting body 616 is arranged, for example, during the printing operation in the use position.

A second of these at least three intended positions of the at least one support body 616 is preferably a parking position. The parking position is preferably characterized in that when arranged in the parking position supporting body 616 a reusable space area is released because the at least one of the at least one support body 616 arranged first contact point 617 and the at least one on the at least one traverse 272 arranged second contact point 618 have a correspondingly large distance from one another, for example at least 5 cm, preferably at least 10 cm, more preferably at least 15 cm and even more preferably at least 20 cm. Preferably, this shared multiple usable space area serves to the movement of the at least one print head closure 608 and / or nozzle closure 608 to allow and / or movement of a cleaning device 623 in and / or against the transverse direction A to allow.

A third of these at least three intended positions of the at least one support body 616 is preferably a protection position. Preferred is in arranged in the protective position supporting body 616 at least one nozzle closure 608 and / or at least one printhead closure 608 arranged in its closed position.

For example, after a printing operation, the at least one support body is first 616 raised from its use position in the Abstellrichtung C. At least one of the at least one supporting body is thereby advised 616 arranged first contact point 617 and the at least one on the at least one traverse 272 arranged second contact point 618 out of contact and initially results in a rolling contact on the at least one support roller 601 the at least one second contact point pair 623 , Preferably, then, at least one of the at least one support body is advised 616 arranged third contact point 621 and the at least one on the at least one traverse 272 arranged fourth contact point 622 out of contact. By the Abstellbewegung the reusable space area is released. Thereafter, the at least one printhead closure is preferred 608 and / or nozzle closure 608 moved from its standby position to its closed position, in particular pivoted.

Preferably, the at least one printhead closure 608 and / or nozzle closure 608 and / or at least one printhead closure 608 and / or nozzle closure 608 supporting component at least one movable guide element 633 on, in particular at least one with the at least one printhead closure 608 and / or nozzle closure 608 and / or at least one printhead closure 608 and / or nozzle closure 608 supporting component jointly movable guide element 633 , At and / or on the at least one movable guide element 633 preferably supports the at least one cleaning device 263 at least temporarily, while by means of at least one cleaning drive 604 is moved in and / or against the transverse direction A and / or along a cleaning path, in particular along at least one guide 603 , Preferably, the at least one cleaning device 263 for at least one support role. The at least one cleaning drive 604 has, for example, at least one preferably circulating traction means, in particular at least one chain, on or at which the at least one cleaning device 263 is attached. For example, a traction means, in particular the chain driving gear then causes a circumferential movement of the chain, whereby the cleaning device 263 along the guide 603 is moved. The cleaning device 263 has, for example, at least one fleece and at least one drive for further winding of the at least one fleece. Further Devices such as pullers and / or collecting devices and / or spray nozzles for cleaning liquids and / or gases are also examples of components of at least one cleaning device 263 ,

After completion of the use of at least one cleaning device 263 For example, the at least one printhead shutter 608 and / or nozzle closure 608 leave in its closed position and the at least one support body 616 moved counter to the Abstellrichtung C until the printheads arranged thereon 221 are arranged in a position in which they from the at least one printhead closure 608 and / or nozzle closure 608 are covered, so preferably airtight enclosed. The at least one supporting body 616 is then in the protection position. Preferably, the at least one support body is supported 616 in its protective position on the arranged in its closed position print head closure 608 and / or nozzle closure 608 off, especially against gravity. Moving the at least one printhead shutter 608 and / or nozzle closure 608 in its closed position and the at least one support body 616 in its protective position is also independent of, and in particular without activation of the at least one cleaning device 263 possible.

The printhead lock 608 and / or nozzle closure 608 is therefore preferred at any time on a traverse 272 in particular pivotally mounted and is in its closed position in addition to shutter holders 631 on, preferably on another traverse 272 are arranged, more preferably, these two trusses 272 together a printhead space 609 in and against the transport direction limit, even more preferably at least one print head 221 is assigned to the same printhead closure 608 and / or nozzle closure 608 is assigned functionally.

At least one cleaning device is preferred 263 per printhead space 609 arranged and more preferred are two cleaning devices 263 per printhead space 609 arranged. These can then be used simultaneously at different positions related to the transverse direction A and thus reduce a necessary period of time. The cleaning devices are preferred 263 during a printing operation on the transverse direction A related outside the working width of the printing unit 200 arranged. More preferably, the side walls 271 of the frame 283 Recesses through which the cleaning devices 263 at least partially transportable. For example, at least one guide element 634 arranged, in particular protruding through the respective recess. This at least one guide elements 634 is preferred as a rigidly arranged guide element 634 educated. More preferably, such a recess such a guide element is arranged. This particular rigidly arranged guide elements 634 preferably form with arranged in their closed position printhead shutters 608 and / or nozzle closures 608 together with the movable guide elements 633 a leadership system. By means of this guidance system are the cleaning devices 263 from an area outside the working width of the printing unit 200 and, for example, outside the frame 283 of the printing unit 200 to the printheads 221 and along the printheads 221 and movable back.

For example, a floor space arrangement is arranged which provides access for operators. The stands allow, for example, access to the cleaning facilities 263 and / or to the treads 237 the protective covers 230 ; 232 ; 234 ; 236 and / or to an upper portion of the dryer unit 300 ,

LIST OF REFERENCE NUMBERS

01

 Printing Machine, Inkjet Printing Machine, Rolling Printing Machine, Rolling Inkjet Printing Machine

02

 Substrate, substrate web

100

 Substrate source, roll-off device, reel splicer

101

 printing material

200

 Printing unit, inkjet printing unit, first

201

 bruise

211

 application site

221

 Imaging device, printhead, inkjet printhead

222

 Print head row

223

 Double row of printheads

224

 pressure range

225

226

 print section

227

 deflection

228

Surface, lateral surface, surface, outer ( 241 )

229

Central axis ( 241 )

230

 protective cover

231

 nozzle beam

232

 protective cover

233

 protective cover

234

 protective cover

235

236

 protective cover

237

Tread surface ( 230 ; 232 ; 233 ; 234 ; 236 )

238

 maintenance opening

241

 vane

242

 Gas supply opening, functional unit

243

 Gas suction opening, inlet opening, functional unit

244

 Flow shield, functional unit

245

246

Printhead recess ( 292 )

247

 Additional equipment, suction element, suction box, hollow body

248

Connection opening ( 258 )

249

 Bedruckstoffführung

250

251

 Web guiding means, web guiding roll, first

252

 web guide

253

 Web guiding means, web guiding roll

254

 Web guiding means, web guiding roll, second

255

256

 web guide

257

 Web guiding means, web guiding roll

258

 suction

259

 outlet

260

261

 support point

262

 Sealing element, sealing ring

263

 Auxiliary device, maintenance device, cleaning device, nozzle cleaning device

264

 clamping element

265

266

 support body

267

 Einlenkelement, spring element

268

 Stop body, screw

269

 Contact body

270

271

Side wall ( 283 )

272

 traverse

273

 Supporting element, lateral

274

 Support element, inside

275

276

 supporting frame

277

 Traverse frame

278

279

 swivel device

280

281

 Swivel axis, first

282

 Pivot axis, second

283

 frame

284

 intermediary

285

286

 Part-turn actuator, linear drive

287

288

289

 Cleaning space

290

291

 maintenance room

292

 Shielding device, shielding surface, shielding plate, functional unit

293

 Stand aid, stand space

300

 dryer unit

301

 Drying Aid, Dryer, Infrared Dryer, Flow Dryer, First

302

 Energy delivery device, radiation source, infrared radiation source

303

 Chill roll, draw roll, second,

304

305

306

 pressure roller

317

 Energy delivery device, air supply line

318

 Air discharge line

343

 measuring roll

344

 Pull roller, first

345

346

 Radiation shield, reflector

347

 Deflection roller, first

348

 Guide roller, second

349

 Absperreichrichtung

350

351

 drying frame

352

 Locking device, door

601

 Additional device, support element, support roller

602

 Additional equipment, support element, support stop

603

Additional equipment, guidance ( 263 )

604

Additional equipment, cleaning drive ( 263 )

605

606

Shutter drive ( 608 )

607

 Additional equipment, torque converter, synchronous shaft

608

 Additional equipment, printhead cap, nozzle cap

609

 Head space

610

611

Cross member, first ( 272 )

612

Cross member, second ( 272 )

613

 spacer

614

Shut-off drive, linear actuator ( 616 )

615

616

 supporting body

617

 Contact point, first

618

 Contact point, second

619

 Contact point pair, first

620

621

 Contact point, third

622

 Contact point, fourth

623

 Contact point pair, second

624

Ground segment ( 616 )

625

626

Printhead opening ( 616 ; 624 )

627

Access opening ( 616 )

628

Evasive opening ( 616 )

629

 Guide device, rail

630

631

Closure holder ( 608 )

632

 Torque transmitter, belt, timing belt

633

 guide element

634

 guide element

A

 Direction, transverse direction

B

 Main direction

C

 Storage direction, stroke direction

D

 access direction

e

 dodge direction

N

 normal direction

S

 setting direction

T1

 Transport direction, first

T2

 Transport direction, second

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102013208754 A1 [0004]
• GB 2357996 A [0005]

Claims (10)

Printing unit ( 200 ), the pressure unit ( 200 ) at least two with respect to one by one for a transport of substrate ( 02 ) provided transport path transport direction arranged successively printheads ( 221 ) and wherein the printing unit ( 200 ) at least three treads ( 237 ), which are each designed to be movable at least between a respective tread position and a respective access position, and wherein each of the at least three tread surfaces ( 237 ) in their respective tread position at least partially in the vertical direction over at least one of the print heads ( 221 ) of the printing unit ( 200 ) and wherein each of the at least three treads ( 237 ) has a width which is at least 60% of a working width of the printing unit ( 200 ) and / or which is at least 40 cm. Printing unit according to claim 1, characterized in that the printing unit ( 200 ) at least one protective cover ( 231 ; 232 ; 233 ; 234 ; 236 ) which is designed to be movable between at least one respective covering position and at least one respective access position and that the at least one protective cover ( 231 ; 232 ; 233 ; 234 ; 236 ) at least one of the at least three tread surfaces ( 237 ) having. Printing unit according to claim 2, characterized in that the printing unit ( 200 ) several such protective covers ( 231 ; 232 ; 233 ; 234 ; 236 ) and that the multiple protective covers ( 231 ; 232 ; 233 ; 234 ; 236 ), at least if they are arranged in their respective Abdeckpositionen, respective treads ( 237 ) on these multiple protective covers ( 231 ; 232 ; 233 ; 234 ; 236 ) are arranged in pairs in pairs at different heights. Printing unit according to claim 2 or 3, characterized in that the at least three tread surfaces ( 237 ) each have a surface normal whose direction is arranged in their respective covering position protective cover ( 231 ; 232 ; 233 ; 234 ; 236 ) deviates from a vertical direction by at most 20 °. Printing unit according to claim 1 or 2 or 3 or 4, characterized in that the at least three tread surfaces ( 237 ) each have a surface normal whose direction is at in their respective covering position arranged tread surface ( 237 ) deviates from a vertical direction by at most 20 °. Printing unit according to claim 1 or 2 or 3 or 4 or 5, characterized in that arranged in their respective at least one access position tread ( 237 ) at least one maintenance opening ( 238 ) and at least one of the printheads ( 221 ) is accessible to an operator. Printing unit according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that at least 25% of the print heads ( 221 ) of the printing unit ( 200 ) are arranged so that they in the vertical direction, in each case at least one of the at least three movable treads ( 237 ) are arranged in their respective tread position. Printing unit according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that the at least three tread surfaces ( 237 ) are arranged at least partially movable independently of each other and / or that the at least three tread surfaces ( 237 ) are pivotally formed between their respective tread position and their respective at least one access position. Printing unit according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, characterized in that the at least three tread surfaces ( 237 ) are arranged in their respective tread positions arranged on pairs of different heights. Printing unit according to claim 1 or 2 or 3 or 4 or 5 or 5 or 6 or 7 or 8 or 9, characterized in that the printing unit ( 200 ) at least four with respect to the transport direction successively arranged printheads ( 221 ), for which applies in pairs, that a respective second, in the transport direction behind a respective first of the printheads ( 221 ) arranged printhead ( 221 ) is arranged higher up than the respective first print head ( 221 ) and that the at least three treads ( 237 ) are arranged behind one another in the transport direction in their respective tread position and together form a staircase having at least three steps.

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