EP1047559B1 - Procede et commande pour le transport d'un support d'enregistrement en forme de bande a perforation marginale dans une imprimante - Google Patents

Procede et commande pour le transport d'un support d'enregistrement en forme de bande a perforation marginale dans une imprimante Download PDF

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Publication number
EP1047559B1
EP1047559B1 EP98961168A EP98961168A EP1047559B1 EP 1047559 B1 EP1047559 B1 EP 1047559B1 EP 98961168 A EP98961168 A EP 98961168A EP 98961168 A EP98961168 A EP 98961168A EP 1047559 B1 EP1047559 B1 EP 1047559B1
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EP
European Patent Office
Prior art keywords
control
drive
signals
inch
recording medium
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.)
Expired - Lifetime
Application number
EP98961168A
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German (de)
English (en)
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EP1047559A2 (fr
Inventor
Holger Hofmann
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.)
Canon Production Printing Germany GmbH and Co KG
Original Assignee
Oce Printing Systems GmbH and Co KG
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Publication of EP1047559A2 publication Critical patent/EP1047559A2/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/26—Pin feeds
    • B41J11/28—Pin wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0085—Using suction for maintaining printing material flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles

Definitions

  • the invention relates to a method and an apparatus for Processing of a tape-shaped recording medium with perforations around the edge in a particularly electrographic printer.
  • the Record carriers are usually made of paper and have on their Longitudinal side holes for transport and position monitoring.
  • the record carrier web is used by tractor tracks driven into the side transport holes intervention. Often these record carriers have additional Cross perforations along which the individual sides of each other can be separated or folds by which they are folded and can be stacked.
  • a perforated paper web is usually fed in a certain grid that corresponds to the hole spacing.
  • Usual paper webs have 1 ⁇ 2 inch hole spacing.
  • the Feed can then, for example, in a 1/6 inch grid corresponding to 3 steps per hole spacing or in a 1/8 inch There are 4 steps per hole spacing.
  • Figure 7 shows such a paper web with perforated edges.
  • This hole spacing a is Pitch spacing.
  • the side lengths divisible by 1 ⁇ 2 inch are the fold or the transverse perforation, which the Define the top of the page, exactly in the middle between two Edge holes, such as illustrated by line 22.
  • the fold or the transverse perforation can lie on one of the grid lines 23. Fold or cross perforation are then in relation to the holes at each top of the page different.
  • FIG 8 shows essential components of printers according to the State of the art, for example under the trade name Océ Pagestream® are known.
  • a Tractor drive 24 is provided. It includes a stepper motor 26 that drives a tractor wheel 25; whose spines grip into the edge holes 21 of the paper web 5.
  • the stepper motor 26 is driven by an electronic control 27 the one hand clock signals 30 from an image generation unit receives and on the other hand clock signals from a pickup 28 about the current stepper motor speed.
  • This Signals are obtained by scanning one of the drive shafts of the Stepper motor connected timing disk 29 is formed.
  • the signals the clock wheel each correspond to a feed by 1/6 inch, i.e. exactly the transport grid.
  • the controller 27 sets the imaging clocks 30 at a fixed frequency ratio in drive clocks 31 for the stepper motor 26, which cause a feed of 1/6-inch on the paper web.
  • the drive is initialized after the printer is switched on. To do this, first set the tractor wheel 25 to 1/6 Inch transport grid aligned.
  • the controller 27 generates drive cycles in steps of 1/240 inch until it receives a signal from transducer 28 that is a 1/6 inch Marking of the clock disc 29 has been detected on the pickup 28 is.
  • the paper web 5 can be moved in the 1/6 inch grid be that a reference point, such as the Fold 22 with every 1/6 inch increment exactly one 1/6 inch Step marking on the fixed ruler 65 to the next 1/6 inch step marker moves.
  • the following pages are then due to the forced guidance by the tractor caterpillar automatically positioned exactly.
  • the edge perforation is used in particular when processing pre-printed paper.
  • the im information subsequently applied to an electrographic printer For example, data on a preprinted form be printed, as precisely as possible at specified points on the Forms come to rest.
  • the perforated paper is usually fed in a certain grid corresponding to the hole spacing, for example in a 1 ⁇ 2 inch grid or in a 1/6 inch grid.
  • the paper web is gradually multiplying of the grid spacing moves.
  • a printer designed to process endless paper without Edge punching fed from a roll or from a stack is suitable is, for example, in the WO 95/19929 A1.
  • roll paper can now both with edge perforation as well as without edge perforation over one tractorless friction drive can be processed.
  • edge perforation can still be processed is, although this edge perforation for transport and Guide the paper is not used.
  • Perforated papers are often still in stock in printing centers held or are delivered pre-printed. In one Device that does not necessarily need the peripheral perforation for transport perforated roll paper can be used.
  • a tractorless drive is known with which a perforated record carrier are transported can.
  • the transport is carried out by means of a control device regulated, the target positions of the record carrier determined at reference points and the actual position of the edge holes be detected with a sensor.
  • the object of the invention is a method and an apparatus for controlling a tractorless drive in a pressure device specify with which both perforated and unperforated web-shaped recording media with high accuracy can be transported in the feed direction.
  • the record carrier marked position e.g. a line, a cross perforation or a fold
  • the transport perforation of the Record carrier regularly, especially continuously, scanned and the scanning result to control the drive used, in particular to balance one between one Friction drive roller and the recording medium occurring Slip.
  • Normal mode is the punched paper in Steps of the transport grid transported, the scheme maintained by scanning the transport perforation becomes.
  • a preferred embodiment of the invention is first determined whether paper with border perforation or paper is inserted into the printer without margin punching before the Transport process is started in the control grid.
  • the invention is particularly useful in an electrographic printing or copier applicable.
  • a tractorless paper transport is a stepless one
  • the invention provides for transport of the perforated paper before, this paper both in the start mode as well as in normal operating mode in certain grid steps to transport or at least the drive control at least partially in steps.
  • a gradual positioning overall for more precise positioning leads Because of the gradual feed in particular in the start mode there are incorrect positions of the paper easily recognizable with reference marks on the printer. They are therefore easier to avoid than one continuous drive. Wrong positioning leads then always a deviation of at least one grid step. Such large deviations can occur in the area grid ruler arranged by the operator or can be easily recognized and corrected automatically. This check or correction can already be made at the beginning of the Print or paper loading process take place.
  • the gradual movement is preferably done with a Stepper motor executed, but could in principle also with other motors, for example with a correspondingly controlled one DC motor done.
  • the invention particularly provides that to control the Drive motor sensor signals about the speed of the Record carrier with reference signals, which preferably be supplied by an exposure unit, at least but are in sync with their clock, are compared and that control signals are formed therefrom.
  • control signals are preferably not necessarily isochronous to the signals the exposure unit, i.e. the two signals are there in no fixed frequency relationship to each other. This is the regulation independent of the exposure clocks of the image-producing Part of the printing device can be fine-tuned.
  • the edge holes of the Paper web in the start mode and in the normal mode be scanned continuously.
  • a sensor arrangement is provided which engages in the edge holes and their signals a drive control for regulation of the paper drive used.
  • This regulation is particularly the same Slip between the paper drive and the paper web by additional feed or by adjusting the drive speed out. This ensures that the printed image is transferred to the paper in justified format.
  • Unperforated paper can be viewed by a brand sensor pre-printed marks are scanned and one on paper located side mark also to a predetermined Feed position can be transported.
  • the paper without perforations can be transported continuously and does not have to with the increments of the transport of edge punched Paper to be transported.
  • the sensor for scanning the edge perforation has one in particular Resolution equal to or less than the hole spacing of the Record carrier is. Especially when there is an identity between Resolution and hole spacing can be determined from the sensor signals, if necessary, taking into account an adjustment offset of the sensor, directly the current position of the transport perforation relative to the transport device and determine a quick start mode carry out.
  • the Record carrier web so long in steps of the transport grid advanced until a side transition of the record carrier lies against a printer-proof side marking.
  • This page marking corresponds in particular to the page lance and is located on a fixed in the drive unit Ruler.
  • the electronic control makes it possible to roll paper that has no edge perforation to be processed in the same way like roll paper with edge perforation, e.g. both gradually to transport, or paper without edge perforation on others To be transported as perforated paper, e.g. to drive the one paper with completely stepless and that others at least partially in stages.
  • the paper web is stopped when the Stopped so that a predetermined position within a printed page, in particular a page border, on one predetermined position of the record carrier transport path comes to rest. Orient the stop positions always follow the guidelines given by the perforations on the edges Grid. The correct position of the print image The top of the page remains after the print stop receive. The printing process can then in particular the page immediately following, whereby material loss (waste) is minimized.
  • the printing device shown in Figure 1 takes one tape-shaped recording medium (paper) from a paper input container 1 or from a supply roll 11.
  • paper tape-shaped recording medium
  • the paper web 5 is a loop 12 one Deflection device 2 fed and then in a web pre-centering device 3 along a contact edge friction drive rollers 4 fed. Then it is from one Drive 8 pulled over a vacuum brake 6, which with a vacuum pump 7 is connected, which generates the negative pressure.
  • the paper web 5 is braked by the negative pressure while increasing the tension of the paper web 5.
  • the paper web 5 passes through a stabilization zone, the from several pulleys 9 and a loop puller 10 exists.
  • the paper web wraps around the deflection rollers 9 at least 180 °, which makes the paper web laterally wider is stabilized.
  • a sensor arrangement 17 optically scans the paper.
  • the Sensor arrangement 17 is designed so that it is the widest Paper that can be processed in the printer still covers all of it Can scan width.
  • the width of the sensor arrangement is thus both the mechanical components for paper transport adapted as well as to the parameters on the recording side the printing device 14, which determine the printable width. It is particularly the width of a photoconductor drum 16 adjusted.
  • the paper width that can be processed is sufficient present embodiment from 6.5 inches (165 mm) to 19 inches (482.6 mm). Details of the sensor arrangement 17 are described in German patent application 197 49 676.8, the contents of which are hereby incorporated by reference into the present description is recorded.
  • the paper web 5 is transferred from the sensor arrangement 17 via a drive unit 13 fed to a transfer station.
  • the transfer printing statics includes a in the illustrated embodiment Photoconductor drum 16, which with a Corotron device 16a interacts.
  • the photoconductor drum 16 is known Way exposed by light with information, whereby a charge pattern is applied. Then takes They have a magnetized toner that is in the transfer printing area the paper web 5 is transferred. Then the unloads Corotron device 16a the corresponding area of the photoconductor drum again, so this again with information can be described.
  • Corotron device 16a acts thereby in a manner known per se, for example in the EP 0 224 820 B1.
  • Corotron device 16a acts thereby in a manner known per se, for example in the EP 0 224 820 B1.
  • the sensor arrangement 17 is in the area arranged the paper feed device 15, it can but also be provided within the printing unit 14.
  • the paper web 5 is transported in the paper transport direction A.
  • Figure 2 shows this in the area of the transfer station or the photoconductor drum 16 of the electrophotographic printer Drive unit 13 more precisely.
  • a roller arrangement 20 also presses on the drive roller 40 given spring force. This will make it between the Rolls 40 and 20 transported paper through friction (Friction) moved by the drive roller 40.
  • the drive roller 40 is in turn via a toothed belt drive connected to the stepper motor 41.
  • the entire drive unit 25 is flanged to a printer housing via the bearing block 44.
  • On the bearing block 44 is through the ball bearing 43 common bearing axis 42 mounted, on the one hand, the rotary movement the drive roller 40 and the other one Swiveling movement of the drive elements about the swiveling axis B.
  • the drive components are to enable the swiveling movement mounted on a support plate 47, which via a Gas pressure spring 49 and via the bearing axis 42 with the bearing block 44 is connected.
  • Threads 45 located in the bearing block 44 serve for receiving of mounting screws through the printer housing 18 be performed.
  • the entire drive unit is over guide surfaces 46 adjustable within the printer housing.
  • the Carrier plate 47 is in turn adjustable with respect to bearing block 44, a first adjustment screw 51 and a second Adjustment screw 52 are provided in the bearing block 44 strike the cylinder-side cylinder pins.
  • the gas pressure spring 49 is connected to the carrier 47 by the screw connection 50 connected and to the bearing block 44 through the Screw connection 48. Carrier 47 and bracket 44 are against each other lockable with the locking device 54.
  • the paper sensor scans the entire paper Width of the printable area of the photoconductor drum, whereby both the side paper edges and any Perforations in the edge of the paper web can be recognized.
  • the transfer zone 5 of the printing device is through the paper sprung pivot jaws 56 to the surface of the photoconductor drum 2 pressed.
  • a known electrical Corotron device 57 generates a high voltage through which the toner on the photoconductor drum is drawn towards the paper becomes.
  • Deflection rollers 58 continue to lead the paper to one Mark sensor 59, any existing on the paper web Detects printing or cutting marks.
  • Grounded electrical connections 61 (antistatic sheets) lead any, on paper any residual electrical charges present.
  • edge perforation can be scanned with a spike wheel 60 become.
  • Figure 3 shows the paper drive 25 in a three-dimensional Presentation. These include, in particular, those on the carrier plate 47 mounted cylinder pin 66 to recognize which with the in the bearing block 44 screwed adjustment screw 52 cooperates, and the screw connection 50 of the gas pressure spring 49.
  • the paper is guided by a guide surface 69 led.
  • This is also the area where Scanning of the paper with the mark sensor 59.
  • a ruler 65 is provided, which for the printer startup is used. Newly loaded paper, which Has perforations at the edge, with a top of the page to a mark 65a corresponding to the side length Rulers 65 applied, the edge perforation in engagement with the pivoted Barbed wire 60 brought, and the printing process initiated.
  • the pinwheel 60 is part of a sensor arrangement, which is described in more detail in FIG.
  • a drive motor 68 pulls a corotron wire according to the page width to be printed the corotron wire cassette 57.
  • the mark sensor 59 is along the rod 73 is displaceable in the direction E.
  • the sheet 66 covers the drive motor 41 and serves in particular the electromagnetic shielding.
  • a rear bearing block 67 is also provided, which is also attached to the printer housing.
  • FIG. 4 shows the pinwheel sensor 85, which is the pinwheel 60 includes.
  • the spiked wheel is pivoted away, i.e. the spikes do not protrude above the paper guide level 67 beyond. With the operating lever 86 this can Swing the pin wheel in or out in the F direction.
  • the spiked wheel 60 is mounted on an axis 87, which is also a gear 88 wears.
  • a magneto-resistive sensor 91 detects pulses the metal gears of gear 88. Let these impulses clearly associate with the rotary movement of the pinwheel 60, so that the edge perforation of paper is scanned can, which runs over the paper plane 67 and engaged with the Stachelrasd 60.
  • sensor module 89 is electrical connected to a device control ( Figure 5).
  • a second magneto-resistive sensor 92 detects whether the pinwheel sensor 85 in the pivoted position with respect to the paper guide plane 67. It acts for this purpose together with the magnet 93 on the guide surface 67 is mounted. With a locking mechanism 90 the entire pinwheel sensor 85 in the pivoted or pivoted Position to be locked.
  • FIG. 5 shows some electronic components of the printer.
  • the drive unit 13 has a drive control 100, connected to the higher-level printer controller 101 is. Commands can be entered by the operator via a control panel 105 become.
  • the drive control 100 receives the signals of the paper width sensor 17 or 55 via its interface 104. From this, it determines both the paper width and the type of paper, i.e. whether there are perforations around the edge.
  • the drive control 100 also receives the scan signals from the spiked wheel sensor 85 via the interface 103. This becomes in the drive controller 100 the speed of the record carrier (the paper web 5) calculated. The result is used to control the stepper motor drive 102.
  • the target speed signals will be supplied by the printer controller 101.
  • a paper web with edge perforation is manually inserted into the printer through the various unit components to the drive unit 13 moved in. There the paper is up to the Guide surface 67 threaded into the area of the ruler 65 and the peripheral perforation in engagement with the spikes of the spiked wheel Brought 82.
  • the feed takes place in the area of the ruler 65 of the paper already via the drive motor 41.
  • the operator determines the direction of the feed (forward / backward) to the beginning of a page exactly on one of the Align the corresponding marking of the ruler 65 on the side.
  • the operator can adjust the feed. He takes place relatively slowly and in transport grid steps Fractions of the hole spacing correspond.
  • the hole spacing is typically 1/2 inch (approximately 12.8 millimeters), the transport grid width is typically 1/6 inch.
  • the spiked wheel sensor 85 the speed or the position of the paper web 5 is detected and with the speed or position of the drive motor 41 compared. Slip occurs, i.e. a discrepancy between these two speeds or positions determined and by the drive control 100 by additional propulsion, i.e. through additional steps of Stepper motor, in a control grid with the grid width 1/120 inch balanced.
  • the relatively slow speed with the just described Operation performed by the operator is used for alignment and positioning a certain feature or one Mark of paper web 5 (e.g. a fold, a mark, a side transition or the like) on a relative to the paper drive unit 13 fixed marking 65a or on the Ruler 65 described above.
  • a certain feature or one Mark of paper web 5 e.g. a fold, a mark, a side transition or the like
  • the paper web 5 much easier: an incorrect position would be at least a transport grid distance from the Target position may differ and could therefore be visual be determined.
  • the transport grid width is adapted to the side length of the perforated paper web 5.
  • a transport grid width of 1/6 inch for example, side lengths of 3, 3 1/6, 3 2/6, 3 3/6, 3 4/6, 3 5/6, 4, 4 1/6 .. ., 28 inches can be processed precisely.
  • the side length need not be a multiple of the transport grid width, but can be virtually any. Unperforated paper is therefore not transported in steps of the transport grid, but in any small steps up to continuous transport.
  • the drive control 100 With the signals of the paper width sensor 17, the drive control 100 also determine if and what kind of Paper is loaded in the printer. This is the drive motor e.g. moved back and forth several times and the sensor signals evaluated. If one or more holes are recognized, see above a perforated paper web is assumed. Based on the recognized Hole positions can then also be automatic alignment on the grid.
  • the feed movement is with a Friction roller 106 on the paper web 5 by friction forces transfer.
  • the friction roller 106 is driven by one Stepper motor 102, which in turn is from the drive controller 100 is controlled with control clocks 31.
  • the feed motion the paper web 5 is regulated by the current Speed of the paper web with the spiked wheel sensor 85 is detected and the sensor signals of the drive control 100 can be fed.
  • the drive controller 100 receives also the clock signals 30 from an imaging unit. On the one hand, it calculates the necessary ones from these input variables Cycles for controlling the drive motor 102 in the 1/6 inch transport grid.
  • stepper motor 102 controls the stepper motor 102 in small, corresponding to a 1/120-inch control grid Control steps after, so that the paper web 5 with respect of the ruler 65 exactly 1/6 with every step in the transport grid Customs clearance. Any slippage between the friction roller 106 and the paper web 5 is balanced.
  • the record on the paper web 5 takes place precisely in a 1/6 inch grid with regard to the edge holes 21 or the marking (fold or transverse perforation) 22, the beginning of a page on the paper web 5 marked.
  • the clock signals of the spiked wheel sensor 85 i.e. the actual feed of the paper web 5, compared to the target feed positions, that from the clock signals 30 of the image forming unit be derived.
  • the drive controller 100 compares the imaging cycles 30, or selected cycles thereof, with the cycles 32 of the spiked wheel sensor 85 and forms drive cycles 31 for it Stepper motor 102, each with a feed of 1/120 inches correspond to the paper web 5. For example, if the Bars 30 of the exposure unit are delivered in a grid the 1/9600 inch feed on the record carrier 5 and the spiked wheel sensor 85 every 1/2 inch Paper feed generated a sensor pulse 32, checked the drive control 100 each whether a pulse of the sensor pulses 32 coincides with every 4800th exposure pulse 30. Strikes the sensor pulse 32 with respect to the exposure pulse 30 delayed on, the drive control recognizes slip and forms more drive impulses 31 per unit of time.
  • the drive cycles 31 are here not in a fixed frequency ratio to the exposure clocks 30.
  • the exposure unit includes, for example, a light emitting diode character generator (LED-ZG), as described in WO 96/27862 A is described.
  • the clock signals 30 can be at an appropriate Position within the character generator described there formed and / or tapped.
  • the content of this WO publication is also hereby incorporated by reference in included the present description.
  • the entire drive is aligned to or in the 1/6 inch transport grid Grid fitted.
  • the controller generates 100 drive cycles in 1/120 inch increments until the spike wheel sensor 85 or an edge hole of the paper web 5 on a predetermined Position (e.g. a spike in a vertical Position). If the drive on the 1/6 inch transport grid is aligned, the paper web 5 in this Transport grid are moved in such a way that a reference point, for example a fold 22 with each 1/6 inch transport step exactly from a 1/6 inch step mark on the fixed ruler 65 to the next 1/6 inch Move step marker.
  • the pinwheel sensor 85 has add a resolution equal to or lower than that Transport grid width (1/6 inch) is, for example 1/6, 1/3 or 1 ⁇ 2 inch. The closer the resolution of the pinwheel sensor 85 the hole spacing (1/2 inch) of the paper web is 5, the more the information he provides is more precise about where there is a transport hole 21.
  • the pinwheel sensor releases For example, 85 is accurate to 1 ⁇ 2 inch, so his signal says from that a transport hole 21 exactly in a previously known area of the currently active spine. In order to is a defined reference automatically the current scanned Hole position given to the ruler.
  • the adjustment dependency different spike wheel sensors can through a one-time reference measurement with determination of a Offset value can be compensated.
  • the realization of the clear The hole position can be assigned in particular in a Quick start mode is an advantage: during fitting the paper web in the transport grid can automatically be ensured that the edge holes 21 on defined positions of the ruler 65.
  • the one described above step to be performed by the operator a specific one Mark the paper web 5 at a marking 65a of the ruler 65 can be positioned in favorable cases if it e.g. the side length is irrelevant.
  • the correct one Position of the start of the page relative to the edge holes 21, which for example for post-processing the printed Paper web 5 may be required in cutters then given despite the simplified start-up.
  • the spiked wheel sensor is only required if there are perforated edges Paper is used. For this purpose it is on, - and can be swiveled inside of the drive unit mounted.
  • Edge holes can instead of the spiked wheel sensor described other sensors can also be used, for example light barriers, which the edge holes with reflex light or with Detect transmitted light, or CCD line sensors. Such sensors can then be fixed to the device. So you don't have to be pivoted away when processing paper without edge holes becomes.

Claims (17)

  1. Procédé pour commander un dispositif d'entraínement (8) sans roues à picots dans un appareil d'impression électrographique, qui imprime feuille à feuille un support d'information (5) se présentant sous la forme d'une bande, dans lequel :
    (a) un support d'information (5) à perforations marginales est transporté en mode de démarrage tout d'abord à un pas de réglage (1/120 de pouce), et de cette façon est adapté à un second pas de transport (1/6 de pouce) supérieur au pas de réglage (1/120 de pouce), lequel pas de transport correspond à une fraction de l'espace entre perforations (a, ½ pouce), et
    (b) des signaux de consigne (30) à une première fréquence sont reçus dans un dispositif de commande d'entraínement (100), lesquels sont générés par une unité de génération d'images ou sont synchrones par rapport à des signaux de l'unité de génération d'images, et des signaux réels (32) à une deuxième fréquence sont reçus par un agencement de capteurs (85) analysant en continu le support d'information (5) et, à partir de la comparaison des signaux de consigne (30) avec les signaux réels (32), il est généré des signaux de commande (31) à une troisième fréquence pour entraíner un moteur d'entraínement (102),
    (c) dans lequel l'entraínement est effectué à un pas de réglage (1/120 de pouce), et la vitesse du moteur d'entraínement (102) est commandée, et
    (d) dans lequel les signaux de commande (31) pour le moteur d'entraínement (102) ne sont pas dans un rapport de fréquences fixe par rapport aux signaux de génération d'image (30).
  2. Procédé selon la revendication 1, dans lequel le moteur d'entraínement (102) est un moteur pas-à-pas.
  3. Procédé selon l'une des revendications 1 ou 2, dans lequel les signaux réels (32) sont délivrés par un agencement de capteurs (85), lequel détecte, en particulier en continu, la position et/ou la vitesse du support d'information (5).
  4. Procédé selon l'une des revendications précédentes, dans lequel il est prévu une commande d'anti-glissement (100) qui compense le glissement entre un rouleau à friction (106) et la bande de support d'information (5), par un avancement additionnel ou une augmentation de la vitesse d'entraínement.
  5. Procédé selon l'une des revendications précédentes, dans lequel les signaux d'entraínement (31) correspondent à un avancement du support d'information au pas de réglage (1/120 de pouce), et les signaux de génération d'images (30) correspondent à une fraction de celui-ci.
  6. Procédé selon la revendication 5, dans lequel les signaux de capteurs (32) correspondent exactement à l'espace (a, ½ pouce) entre les perforations marginales (21).
  7. Procédé selon l'une des revendications précédentes, dans lequel il est généré, en mode de fonctionnement normal, des signaux de commande (31) pour entraíner un moteur pas-à-pas (102), qui correspondent au pas de transport (1/6 de pouce).
  8. Procédé selon l'une des revendications précédentes, dans lequel il est vérifié si le support d'information (5) comporte une perforation marginale (21) avant de mettre en mouvement le dispositif d'entraínement (13).
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que le support d'information (5) est calé au pas de transport (1/6 de pouce) avec une règle (65) fixe par rapport au dispositif d'entraínement (13), de telle façon qu'un repère (22) du support d'information (5) soit aligné avec un repère (65a) de la règle (65) correspondant à la longueur de page prévue.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que, lors d'un arrêt nécessaire de l'appareil d'impression, la bande de support d'information (5) est arrêtée de telle façon qu'une position déterminée à l'intérieur d'une page, en particulier une frontière entre pages, vienne se placer à une position prédéterminée du chemin de transport du support d'information (5).
  11. Dispositif de commande pour un dispositif d'entraínement sans roues à picots (13) dans un appareil d'impression électrographique, qui imprime feuille à feuille sur un support d'information (5) se présentant sous la forme d'une bande sans perforations marginales, dans lequel il est prévu des moyens de commande (100) qui :
    (a) commandent en mode de démarrage un moteur (102) de telle façon qu'un support d'information (5) est transporté en mode de démarrage tout d'abord à un pas de réglage (1/120 de pouce), et de cette façon est adapté à un second pas de transport (1/6 de pouce) supérieur au pas de réglage (1/120 de pouce), lequel pas de transport correspond à une fraction de l'espace entre perforations (a, ½ pouce), et
    (b) qui est conformé de telle façon qu'il peut recevoir des signaux de consigne (30) à une première fréquence qui sont générés par une unité de génération d'images ou sont synchrones par rapport à des signaux de l'unité de génération d'images, et peut recevoir des signaux réels (32) à une deuxième fréquence d'un agencement de capteurs (85) analysant en continu le support d'information (5) et, à partir de la comparaison des signaux de consigne (30) avec les signaux réels (32), peut générer des signaux de commande (31) à une troisième fréquence pour entraíner un moteur d'entraínement (102),
    (c) dans lequel l'entraínement est effectué à un pas de réglage (1/120 de pouce), et
    (d) dans lequel les signaux de commande (31) pour le moteur d'entraínement (102) ne sont pas dans un rapport de fréquences fixe par rapport aux signaux de génération d'image (30).
  12. Dispositif de commande selon la revendication 11, dans lequel il est prévu un premier capteur (85) qui détecte la position et/ou la vitesse du support d'information (5) se présentant sous la forme d'une bande.
  13. Dispositif de commande selon la revendication 11 ou 12, dans lequel le premier capteur (85) est relié au dispositif de commande (100), et dans lequel ledit dispositif de commande (100) se présente sous la forme d'un dispositif de réglage pour le dispositif d'entraínement (13).
  14. Dispositif de commande selon l'une des revendications 12 ou 13, dans lequel le premier capteur (85) est conformé de telle façon qu'il peut surveiller des perforations de transport (21) du support d'information (5) à perforations marginales, et dans lequel le capteur (85) comporte en particulier une roue à picots (60).
  15. Dispositif de commande selon l'une des revendications 11 à 14, dans lequel il est prévu un second capteur (13) au moyen duquel il peut être détecté si un support d'information (5), avec ou sans perforations, est placé dans l'appareil d'impression.
  16. Appareil d'impression électrographique comportant un dispositif d'entraínement (13) et un dispositif de commande selon l'une des revendications 11 à 15.
  17. Appareil d'impression électrographique selon la revendication 16, dans lequel le dispositif d'entraínement (13) comporte un moteur pas-à-pas (102) ainsi qu'un rouleau à friction (106) entraíné par celui-ci.
EP98961168A 1997-11-10 1998-11-10 Procede et commande pour le transport d'un support d'enregistrement en forme de bande a perforation marginale dans une imprimante Expired - Lifetime EP1047559B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19749645 1997-11-10
DE19749645 1997-11-10
PCT/EP1998/007170 WO1999024262A2 (fr) 1997-11-10 1998-11-10 Procede et commande pour le transport d'un support d'enregistrement en forme de bande a perforation marginale dans une imprimante

Publications (2)

Publication Number Publication Date
EP1047559A2 EP1047559A2 (fr) 2000-11-02
EP1047559B1 true EP1047559B1 (fr) 2002-03-13

Family

ID=7848191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98961168A Expired - Lifetime EP1047559B1 (fr) 1997-11-10 1998-11-10 Procede et commande pour le transport d'un support d'enregistrement en forme de bande a perforation marginale dans une imprimante

Country Status (4)

Country Link
US (1) US6318916B1 (fr)
EP (1) EP1047559B1 (fr)
DE (1) DE59803391D1 (fr)
WO (1) WO1999024262A2 (fr)

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DE102008038770A1 (de) 2008-08-12 2010-02-25 OCé PRINTING SYSTEMS GMBH Verfahren und Anordnung zum Steuern eines Druckers oder Kopierers
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Also Published As

Publication number Publication date
US6318916B1 (en) 2001-11-20
WO1999024262A3 (fr) 1999-07-15
DE59803391D1 (de) 2002-04-18
EP1047559A2 (fr) 2000-11-02
WO1999024262A2 (fr) 1999-05-20

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