EP4175829A1 - Dispositif d'encrage d'une presse rotative - Google Patents

Dispositif d'encrage d'une presse rotative

Info

Publication number
EP4175829A1
EP4175829A1 EP21730523.4A EP21730523A EP4175829A1 EP 4175829 A1 EP4175829 A1 EP 4175829A1 EP 21730523 A EP21730523 A EP 21730523A EP 4175829 A1 EP4175829 A1 EP 4175829A1
Authority
EP
European Patent Office
Prior art keywords
ink
transfer roller
flexible
elastic element
inking unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21730523.4A
Other languages
German (de)
English (en)
Inventor
Kevin WEGMANN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP4175829A1 publication Critical patent/EP4175829A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/061—Inking devices
    • B41F9/063—Using inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/05—Positioning devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
    • B41F31/07—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders for rotogravure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32—Lifting or adjusting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/02—Rotary intaglio printing presses for multicolour printing
    • B41F9/023—Web printing presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1009—Doctors, scrapers, or like devices with reciprocating movement

Definitions

  • the invention relates to an inking unit of a rotary printing machine, a rotary printing machine and a method for transporting printing ink in depressions of an ink transfer roller in an inking unit
  • An inking unit of a rotary printing press is provided to apply a printing ink to a printing material in accordance with the motif.
  • An entire print image is often composed of several printing inks, so that several inking units have to be used, i.e. one inking unit for each printing color.
  • the invention relates to an inking unit which comprises an ink transfer roller which has depressions. The ink transfer roller picks up printing ink in these depressions and then transports it to the printing material or to another
  • Ink transfer roller where the printing ink is then released. After the printing ink has been dispensed, the depressions are emptied. In other words, they are then filled with air.
  • the required printing ink is provided in an ink reservoir into which the ink transfer roller protrudes.
  • enough printing ink must be provided in the ink reservoir that the ink transfer roller also dips into the printing ink. Should the printing ink made available in the ink reservoir fall below a certain volume, it must be refilled.
  • the object of the present invention is to provide an inking unit and a method with which the depressions of the ink transfer roller can be filled even at high speeds.
  • an ink transfer roller which comprises depressions for transporting printing ink, protrudes into an ink reservoir.
  • This ink reservoir contains printing ink with which the ink transfer roller comes into contact so that the depressions of the ink transfer roller can be filled with printing ink.
  • at least one flexible and / or elastic element contributes to achieving the stated object.
  • a force can be applied to the ink transfer roller and / or the ink reservoir. By applying a force, the ink transfer roller is brought into contact with the flexible and / or elastic element. The flexible and / or elastic element is deformed and thereby provides a restoring force. The ink transfer roller and the flexible and / or elastic element now have a common contact surface.
  • the flexible and / or elastic element is connected to the ink reservoir and, viewed in the circumferential direction of the ink transfer roller, is arranged immovably relative to the ink reservoir. So that the ink transfer roller moves past the flexible and / or elastic element, so both have an abrasive one Contact. Even if the element is immobile as seen in the circumferential direction of the ink transfer roller, the element can be deflected due to the flexibility or elasticity due to the force caused by the rotation of the ink transfer roller. Even if “immobile” is used in the present disclosure, such a deflection is to be understood as falling under this.
  • the ink transfer roller and / or the ink reservoir can be moved with a power supply device.
  • the ink transfer roller and / or the ink reservoir can also be moved by means of a position adjustment device.
  • the components can be brought closer to one another in a force- and / or position-controlled manner.
  • a position adjustment device also results in the ink transfer roller making contact with the flexible and / or elastic element with a force.
  • the elastic element Due to the force and the areal expansion of the contact, the elastic element is able to push air out of the depressions of the ink transfer roller and to push new printing ink into the depressions.
  • the length of the contact surface is at least 5 mm, but preferably at least 1 cm. Reliable filling of the depressions is achieved with such a dimension.
  • doctor blades are arranged within the ink reservoir, but this rests along a line on the ink transfer roller so that there is only a brief contact.
  • the contact time is often insufficient to reliably fill the depressions of an ink transfer roller.
  • An ink transfer roller according to the invention can be an anilox roller with which printing ink can be transferred to a further cylinder.
  • the ink reservoir can be a doctor blade chamber which is closed off from the surroundings with doctor blades.
  • the ink transfer roller can also be a forme cylinder of a gravure printing inking unit.
  • the solution according to the invention also leads to less wear on the flexible and / or elastic element and also on the ink transfer roller, since the contact force is distributed over a large area and is not linear.
  • a flexible element is to be understood as an element whose shape can be reversibly changed, that is to say, for example, can be bent. In this case, restoring forces occur, which want to restore the element to its original shape.
  • An elastic element means an element whose volume can be changed. Such an element can for example be pressed in by the ink transfer roller. Here, too, restoring forces occur, which want to bring the element into its original volume.
  • Both a flexible element and an elastic element obey Hook’s law in particular.
  • an elastic element can also be stretchable.
  • a flexible and / or elastic element can, however, also comprise solid components. For example, it can be connected to metal parts, for example glued, in order to simplify fastening in the paint reservoir. Such metal parts can be screwed for this purpose or held by magnets. Fixed components can therefore be viewed as belonging to the flexible and / or elastic element.
  • the flexible and / or elastic element comprises a body, in particular a body made of an elastomeric material.
  • a body in particular a body made of an elastomeric material.
  • such a material is pressed in a little by the ink transfer roller, so that restoring forces arise in the material.
  • These restoring forces press the material locally partly into the depressions of the ink transfer roller, so that the air introduced into these depressions is forced out.
  • the depressions which are often also referred to as cells, can be completely refilled with printing ink.
  • an elastomeric material from which such a body can be produced can be a rubber or a foamed plastic.
  • the properties of the last-mentioned material in particular can be varied over a wide range by a suitable choice of material and / or by suitable manufacturing parameters and can be adapted to the requirements so that the advantages described can be achieved in a simple and inexpensive manner.
  • the flexible and / or elastic element comprises a body which at least partially surrounds a solid base body.
  • a metal or plastic rail is conceivable as the base body, which can be connected in particular to the bottom of the paint reservoir.
  • Such a rail can be fastened in or on the paint reservoir and removed from it again in a few simple steps, for example by means of a screw connection.
  • the flexible and / or elastic body can then be attached to this rail.
  • a rubber can be vulcanized onto the solid body.
  • a body can also be glued to the base body or connected with a releasable connection. The connection between the body and the base body can then be released outside the paint reservoir in order to be able to replace a worn body in particular. This can be done outside of the printing machine so that it can continue to operate, so that costly downtimes are avoided.
  • the flexible and / or elastic element comprises at least one plate which contacts the ink transfer roller with a surface area and is connected with its edge areas directly or indirectly to the ink reservoir.
  • a plate is understood to mean an element whose thickness is small compared to its surface area. The thickness can be a few millimeters, for example less than 20mm, while the length and / or width can be several centimeters or even Decimeter concerns, for example, more than 10 centimeters each. With these dimensions, the flexibility of a plate is guaranteed. The flexibility is also ensured if the plate is connected directly or indirectly to the paint reservoir only with its edges, in particular with two opposite edge regions.
  • the flexible and / or elastic element can in principle, in particular independently of all the described exemplary embodiments, be resiliently mounted relative to the paint reservoir, so that the flexibility and / or elasticity is increased again, which is advantageous with regard to the function according to the invention.
  • the flexible and / or elastic element comprises at least one plate which is at least partially made of a plastic.
  • a plastic is usually an inexpensive material, so that possible wear and tear is not costly.
  • an ink transfer roller is usually made of a hard material (for example ceramic or metal), so that a unit in contact with this roller should be made of a softer material in order to minimize wear on the roller. This requirement is met by a plastic.
  • the flexible and / or elastic element can now be acted upon by a restoring force generated by a pretensioning of the element.
  • a restoring force generated by a pretensioning of the element.
  • the plate to be converted into an arch-like shape and positioned between the abutments. If the plate is now released, it bends back until it rests against the abutments at least with surface portions, for example with the edge areas, so that the plate is pressed against the abutments by the restoring forces.
  • the abutments comprise holders designed as hooks.
  • the opening sides of these holders are preferably facing one another. This measure reduces the risk of the flexible and / or elastic element, in particular a plate, being pressed out of the space between the abutments by the force of the ink transfer roller.
  • a displacement device is provided with which the flexible and / or elastic element can be displaced in the axial direction of the ink transfer roller, in particular displaceable in an oscillating manner.
  • a rotogravure printing press is usually a multi-column printing machine in which each printing column includes an inking unit. A web of material is guided from pressure stand to pressure stand and in Each printing stand is guided over a counter-pressure roller, often referred to as an impression roller. The material web is pressed against the ink transfer roller with the impression roller.
  • the ink transfer roller is designed directly as a motif roller, with the motif being represented by the indentations made in accordance with the motif.
  • Another aspect of the invention relates to a method for transporting printing ink in depressions of an ink transfer roller in an inking unit of a rotary printing press. According to the invention it is provided that printing ink is provided with an ink reservoir, the
  • Ink transfer roller at least partially protrudes into the ink reservoir in order to receive printing ink, at least one flexible and / or elastic element being connected to the ink reservoir and being held immovable in the circumferential direction of the ink transfer roller, the ink transfer roller and / or the ink reservoir being subjected to a force, the flexible and / or elastic element is deformed and wherein there is a contact surface between the ink transfer roller and the flexible and / or elastic element.
  • FIG. 1 Schematic view of a multicolor rotogravure printing machine.
  • Fig. 2 Section through an inking unit according to the invention
  • FIG. 1 shows a schematic view of a multicolor rotogravure printing machine 1 as an example of a rotary printing press according to the invention, the rotogravure printing machine 1 being designed in the so-called column construction.
  • This rotogravure printing press 1 shown as an example is shown with four inking units D1 to D4.
  • a rotogravure printing press is not limited to this number of inking units.
  • Printing machines in stand construction can even be expanded in a modular manner, so that a user of such a printing machine can use as many printing stands as he wishes.
  • a printing ink is printed in each individual inking unit. Starting from an unwinding device 2, the material web 4 is fed to the printing press.
  • the material web 4 reaches the inking unit D1 via guide rollers 3, preferably according to the invention. There the material web 4 is guided over an impression roller P1. This impression roller P1 can be adjusted in its height position in the direction of the double arrow y and can therefore be positioned against the gravure cylinder T1. In this case, the material web 4 runs through the nip between the impression roller P1 and the ink transfer roller designed as a gravure cylinder T1. The material web 4 is printed with the print motif of a printing ink. The material web 4 reaches the inking unit D2 via further guide rollers 3. On the way to the inking unit D2, the material web 4 passes several drying devices, not shown, so that the printing ink printed in the inking unit D1 can dry sufficiently.
  • Guide rollers 3 can also be installed in the drying device. After the printing in the inking unit D2, the material web 4 again passes via further guide rollers 3 into the inking unit D3, where a third color can be printed. The last inking unit D4 shown is not shown in print, ie the impression roller P4 has been moved upwards so that the material web does not touch the gravure cylinder T4. In this inking unit D4, for example, all ink-carrying parts can be cleaned. After leaving the inking unit D4, the material web 4 arrives via further guide rollers 3 to a feed device 5, which comprises a draw roller 6 and a pressure roller 7. Finally, the material web 4 arrives at a winding device 8, where it is wound into a roll.
  • FIG. 2 now shows a section through an inking unit according to the invention.
  • the ink transfer roller 100 for example a rotogravure printing cylinder, is immersed in the printing ink 101, which is made available in an ink reservoir designed as an ink pan 102.
  • the ink transfer roller 100 for example a rotogravure printing cylinder
  • the ink transfer roller 100 and / or the ink trough 102 can be displaced in the direction or against the direction y. In the printing mode, the ink transfer roller can rotate in direction R, for example.
  • Two abutments are arranged on the floor 103 of the paint pan 102 and are attached directly or indirectly to or on the paint pan.
  • the abutments are designed as hooks 104 and 105. As shown, the hooks could represent open triangles with their open sides facing each other.
  • a plate 106 is arranged between these abutments, the plate being an exemplary embodiment of an elastic and / or flexible element. This plate 106 has a greater extent along its visible cross-sectional line than the distance between the points of the abutments which are furthest apart.
  • these most distant points are the outer tips of the two hooks 104 and 105.
  • it In order to be able to place the plate between the two hooks, it is flexible and is elastically arched, with an arch 107 pointing in the y-direction is. This creates restoring forces which bring the plate 106 back into its original shape want. These restoring forces lead to the surface areas of the plate 106 resting against the abutments, the arch 107 being retained.
  • FIG. 3 now shows the same situation as FIG. 2, but the ink transfer roller has now been displaced in the direction of arrow A so that its outer surface presses in sheet 107 of plate 106, so that in the circumferential section indicated by double arrow U , a contact surface between the plate 106 and the relevant peripheral portion of the ink transfer roller 100 is formed.
  • the arch 107 is “pressed in” and, to a certain extent, forms a counter-arch.
  • the formation of this contact surface creates the effect that the air that is entrained through the depressions of the ink transfer roller is pressed out of these depressions.
  • the depression can now be filled with fresh printing ink.
  • FIG. 4 shows the view IV-IV from FIG. 2. It is therefore a plan view of the ink pan 102.
  • This ink pan 102 extends in the direction z and thus parallel to the axis of rotation 108 (see FIG. 2) of the ink transfer roller 100, the latter, however, is not shown in FIG.
  • the paint trough 2 has end walls 109, 110.
  • the hooks 104, 105 are also rail-like and extend in the direction z. Each hook can be made in one piece or in several pieces. It is advantageous if both hooks at both ends by means of one face plate 111, 112 each. These face plates 111, 112 can now be attached to the end walls 109, 110, somewhat by means of screw connections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

L'invention concerne un dispositif d'encrage d'une presse rotative comprenant un rouleau de transfert d'encre, lequel présente des creux dans lesquels de l'encre d'impression peut être transportée, un réservoir d'encre destiné à fournir de l'encre d'impression, le rouleau de transfert d'encre faisant saillie au moins partiellement dans le réservoir d'encre pour recevoir de l'encre d'impression, et au moins un élément flexible et/ou élastique qui est relié au réservoir d'encre et est fixe dans la direction circonférentielle du rouleau de transfert d'encre. Selon l'invention, le rouleau de transfert d'encre et/ou le réservoir d'encre peuvent être soumis à une force, l'élément flexible et/ou élastique étant déformable, et une surface de contact étant formée entre le rouleau de transfert d'encre et l'élément flexible et/ou élastique.
EP21730523.4A 2020-05-29 2021-05-28 Dispositif d'encrage d'une presse rotative Pending EP4175829A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020206778.3A DE102020206778A1 (de) 2020-05-29 2020-05-29 Farbwerk einer Rotationsdruckmaschine
PCT/EP2021/064431 WO2021239988A1 (fr) 2020-05-29 2021-05-28 Dispositif d'encrage d'une presse rotative

Publications (1)

Publication Number Publication Date
EP4175829A1 true EP4175829A1 (fr) 2023-05-10

Family

ID=76305897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21730523.4A Pending EP4175829A1 (fr) 2020-05-29 2021-05-28 Dispositif d'encrage d'une presse rotative

Country Status (3)

Country Link
EP (1) EP4175829A1 (fr)
DE (1) DE102020206778A1 (fr)
WO (1) WO2021239988A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5573554A (en) * 1978-11-27 1980-06-03 Nissha Printing Co Ltd Continuous printing for sheet-shaped body with rugged surface
DE4117390C2 (de) 1991-05-28 2003-11-06 Koenig & Bauer Ag Rakelbalken für ein Farbwerk einer Rotationsdruckmaschine
DE4330681A1 (de) 1993-09-10 1995-03-16 Roland Man Druckmasch Kammerrakel
DE9412586U1 (de) * 1994-08-04 1995-11-30 Windmoeller & Hoelscher Tiefdruckwerk für eine Rotationsdruckmaschine
DE19637046C1 (de) 1996-09-12 1997-05-28 Koenig & Bauer Albert Ag Farbwerk für eine Rotationsdruckmaschine
DE102009039309B4 (de) 2009-08-31 2015-09-17 Kai Schneider Vorrichtung mit Dichtstrang, Vorrakel und Schmierung als Enddichtung zwischen Druckzylinder und Farbwanne einer Rotationsdruckmaschine
CN209580789U (zh) * 2018-12-27 2019-11-05 徐州华艺彩色印刷有限公司 一种基于凹版印刷的墨辊高效上墨装置

Also Published As

Publication number Publication date
DE102020206778A1 (de) 2021-12-02
WO2021239988A1 (fr) 2021-12-02

Similar Documents

Publication Publication Date Title
EP0080588B1 (fr) Dispositif d'encrage et de mouillage pour une machine à imprimer offset
DE3112745C2 (de) An einen Plattenzylinder einer Offset- oder Hochdruckmaschine anstellbarer Walzenstock
EP0936065B1 (fr) Dispositif pour appliquer un liquide sur une feuille imprimé, notamment unité d'impression ou de lacquage dans une machine rotative d'impression pour feuilles
DE4012825C2 (fr)
EP2033785B1 (fr) Agencement dans une unité d'impression d'une presse rotative
WO2003049947A2 (fr) Procedes et dispositifs permettant de regler au moins un rouleau dans une machine a imprimer et/ou de le placer/retirer
EP2019752A1 (fr) Mécanisme d'encrage de presse rotative comprenant un cylindre porte-film
EP0985530B1 (fr) Dispositif d'encrage comprenant un rouleau tocheur-encreur pour la réduction de l'encre moutonnant
DE4138730C1 (fr)
EP4175829A1 (fr) Dispositif d'encrage d'une presse rotative
EP1278637B1 (fr) Systeme de dosage permettant d'encrer les rouleaux d'une imprimeuse
EP0115301A2 (fr) Encrier pour encre courte
DE102006042590B4 (de) Rotationsdruckmaschine mit mindestens einem eine Farbstromtrennwalze aufweisenden Farbwerk
DE10253194A1 (de) Vorrichtung und Verfahren zum Einfärben der Walze einer Rotationsdruckmaschine
DE10304285A1 (de) Farbkasten
DE10103842A1 (de) Farbwerk in einer Druckmaschine
DE102006030057A1 (de) Farbwerk einer Rotationsdruckmaschine
DE102004039732A1 (de) Farbdosierung durch Magnetkraft
EP3170665B1 (fr) Procédé de fonctionnement d'une imprimante comprenant un cylindre tramé
WO2007096106A1 (fr) Machine d'impression
EP1717032B1 (fr) Groupe d'impression avec dispositif d'application de lubrifiant
DE3211454A1 (de) Rollenrotationsdruckmaschine fuer endlosdruck
DE10148501A1 (de) Farbwerk
EP3569416A1 (fr) Racle pour une machine de sérigraphie
EP2072256A2 (fr) Unité d'encrage avec dispositif de dosage

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230403

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: B41F0009060000

Ipc: B41F0009100000

RIC1 Information provided on ipc code assigned before grant

Ipc: B41F 31/32 20060101ALI20240305BHEP

Ipc: B41F 31/30 20060101ALI20240305BHEP

Ipc: B41F 31/07 20060101ALI20240305BHEP

Ipc: B41F 31/06 20060101ALI20240305BHEP

Ipc: B41F 31/05 20060101ALI20240305BHEP

Ipc: B41F 31/02 20060101ALI20240305BHEP

Ipc: B41F 9/10 20060101AFI20240305BHEP