EP1141785B1 - Elektrographische druckeinrichtung mit sensor für die schlupferkennung - Google Patents
Elektrographische druckeinrichtung mit sensor für die schlupferkennung Download PDFInfo
- Publication number
- EP1141785B1 EP1141785B1 EP99963372A EP99963372A EP1141785B1 EP 1141785 B1 EP1141785 B1 EP 1141785B1 EP 99963372 A EP99963372 A EP 99963372A EP 99963372 A EP99963372 A EP 99963372A EP 1141785 B1 EP1141785 B1 EP 1141785B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printer device
- transfer
- photoconductor
- toner
- printing
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
- G03G15/161—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support with means for handling the intermediate support, e.g. heating, cleaning, coating with a transfer agent
Definitions
- the invention relates to an electrographic printing device with at least one printing unit with a toner image carrier, on its peripheral surface, toner according to an image Distribution can be applied.
- Such a printing device is in a printer or copier used, with the help of an electrographic Process applied a latent image on the toner image carrier becomes.
- a latent image on the toner image carrier becomes.
- This can e.g. by exposing a photoconductor or by magnetizing a magnetically sensitive layer respectively.
- Toner is deposited on the latent image accordingly the pictorial distribution of the electrical charges or of the magnetic poles.
- This toner is transferred to a transfer location transferred to a carrier material, generally paper and later fixed on it.
- a device with such a printing device should work quickly and be flexible in use. Often, toner images be printed on a form that has form windows in the individual characters are to be printed. The characters positioned exactly within the form window. In the case of multicolor printing, the individual colored drawing files must be printed congruently to create a multicolor image produce. All of this places high demands on the mechanics.
- a printing device is described in EP 0523870, at of several drawing files of different colors in succession and spaced apart are generated on a photoconductor belt.
- the drawing files are opened individually at a transfer location transfer a sheet-shaped recording medium, the Record carriers are repeatedly guided past the transfer location is that the drawing files are as congruent as possible be reprinted.
- the distance between two successive Drawing files is equal to the scope of the roles on which the Photoconductor tape is running, or a multiple thereof, the individual roles have the same scope.
- An uneven one Rotary motion e.g. B. due to an eccentricity the roller axes, then affects all drawing files equal, so that the congruently printed partial images result in a full color image without color errors.
- the printing device can between the drive rollers and slip occurs in the photoconductor belt. That the unrolled circumference of the drive roller in one revolution is longer than the distance around which the photoconductor band is moved forward.
- the mechanics can Change transfer points. When printing on a form e.g. it is important that the toner image is precisely predetermined Form sections are printed.
- the slip between that Photoconductor belt and the drive rollers is not constant, but can be affected by external influences such as temperature or change humidity or aging.
- the Changes in the mechanics at the transfer points is from outside Influences dependent. These changes can only be made difficult to determine. If due to a slip or one Changing the mechanics the toner images are no longer precise Often it can only be printed on the form noticed late and leads to committee.
- Another printing device with the different colored Partial images are copied congruently is from DE 198 06 551 known. With this printing device becomes everyone Drawing image of a mark on a paper web as a record carrier printed. The reflectivity of the congruently printed one on top of the other Marks is used to check the alignment of the individual drawing files measured to each other. On the basis of this The result of the check is the control of the individual Printing units regulated. This printing device is also a considerable circuitry required. A precise position Printing in a form window can be done with this known Do not reach printing device.
- a printing device is specified in EP 0 281 055, at a position sensor for a drum is provided. Also this printing device can only be used for sheet-like recording media use.
- Components are from the Patent Abstract of Japan JP-A-06027829 a printing device known in which on a Transfer ribbon a mark is applied, which together with the transfer belt is moved past a sensor. With help a control detects the passing of the mark and the Circulation speed of the transfer belt determined. Dependent from the result of the determination of the rotational speed with the help of another control on a drive motor acted at this rotational speed of the transfer belt correct to a predetermined value. In this way ensures that the transfer belt is a predetermined Orbital speed.
- an electrographic printing device with at least one printing unit with a toner image carrier, on its peripheral surface, toner according to an image Distribution can be applied, the toner image carrier a photoconductor whose outer peripheral surface is covered with a latent Charge image is chargeable and has a transfer belt, on which the toner present on the photoconductor is at a first Transfer point is transferable, means are provided through which a carrier material the transfer belt is guided past that the arranged on it Toner at a second transfer location on the carrier material is transferable, along a peripheral portion of the photoconductor a printing device for forming the toner image is arranged, the at least one mark on the photoconductor prints, at least one sensor is arranged on the transfer belt, which detects the passing of the mark, controls the runtime the mark from when the printing device was printed to determined at the time of detection on the sensor, and dependent from the running time to the transport of the band-shaped carrier material controls.
- the brand moves in the steady State from the time of registration to the time of transfer printing with constant speed. Therefore, the runtime Determine the time it takes to print the toner image required on the carrier material. If due to a change slip, e.g. due to changed ambient temperature, the print quality deteriorates, this causes Slip change also means a change in the term of the Control is monitored. This is indirectly a change the slip is detected and the printing process can take place accordingly to be controlled. For example, can be used to transport the carrier material can be controlled depending on the duration, for example by stopping printing or by Readjusting the transport speed.
- the term is also compared to a predetermined target value, if exceeded or falling below a signal is generated. at there has been a deviation from the specified setpoint Slip changed, or there are changes in the mechanics occurred.
- the signal generated can be controlling acted on the transport of the band-shaped carrier material become.
- the operation of the printing device is interrupted become. This will avoid printing scrap.
- a calibration process determines the base time that of the printing device applied toner image needed to attach to the second Transfer point to be reprinted.
- the target time mentioned is then determined based on the base time. For example, can the target time is 98% of the basic time. If the term the mark in this case corresponds to the target time ensures that the toner image is exactly where you want it Place is printed on the carrier material.
- the basic time is at Occurrence of the signal determined again.
- the signal is like mentioned if the runtime deviates from the target time. That means that the base time has changed and the toner images are no longer in the desired position on the Backing material can be printed.
- the base time must therefore be new determined and the transport of the band-shaped carrier material can be controlled according to the changed slip.
- the sensor is preferably close to the second transfer printing point arranged. Then the deviation of the term from the Bottom time especially small. This allows the toner image place very precisely on the carrier material.
- a further development is characterized in that the printing device at least one image generation unit for generation a latent charge image on the photoconductor and at least has a developer station with the charge image Ink colors. This enables a uniform print image achieve with high resolution.
- the printing device can also have multiple developer stations, creating a multi-color print becomes possible.
- a second printing unit for generating a toner image on that of the first printing unit facing away from the carrier material.
- duplex printing is possible in this way, both then Sides of the carrier material can be printed simultaneously.
- the electrographic Printing device at least one printing unit with one Toner image carrier, on the circumferential surface of which toner according to a image-shaped distribution can be applied, the toner image carrier a photoconductor, the outer peripheral surface of which a latent charge image can be charged, and a transfer belt the toner present on the photoconductor a first transfer printing point is transferable, means are provided through which a carrier material is guided past the transfer belt so that it is on arranged toner at a second transfer location on the Carrier material is transferable, along a circumferential section of the photoconductor, a printing device for generating the toner image is arranged on the transfer belt at least a mark is arranged, at least one sensor on the transfer belt is arranged, which detects the passing of the mark, a control the turnaround time of the mark on the transfer belt determined, and depending on the orbital period on the Control device acts.
- successive toner images congruent on the Transfer ribbon can be printed.
- the orbital period of the brand is based on the detection of the mark passing the sensor determined by the controller, the orbital time at a Change in slip or change in length of the transfer belt also changes. This will make one Change in slippage or a change in length of the belt is detected, and the printing process can be controlled depending on the round trip time become.
- the slip itself or the change in length the transfer belt is not determined, the Arrange toner images precisely on this.
- the time between the application of two is preferred successive toner images on the photoconductor on the Determined based on the orbital period.
- the photoconductor and that Transfer belt run at the same, constant speed. So the toner images can be easily and precisely be placed on the transfer belt.
- the round trip time is in one calibration process certainly.
- the transfer belt In a collection mode, the transfer belt is repeated on the passed the first transfer printing point, and with each new one A toner image is then passed onto the transfer belt transfer the previous toner image. That way you can Toner images can be superimposed particularly easily. A cleaning device the transfer belt should be from this be swung away.
- the transfer belt is changed every time you pass the carrier material pivoted away so that the Carrier material and smearing of the toner images on the Transfer ribbon is avoided.
- a further development is characterized in that on the Based on the round trip time, the time between application two successive toner images on the photoconductor is set so that when you pass the transfer belt printed congruently at the first transfer location become.
- the transfer belt runs at a constant speed, and a change in the orbital period then means that the length of the transfer belt has changed. So that the toner images must be able to be printed congruently the time between two successive applications Toner images on the photoconductor can be changed.
- the mark can be fixed on the transfer belt.
- a reflex sensor is provided as the sensor, which detects the passing of the toner mark.
- Figure 1 shows an embodiment of a printing device with a first printing unit 10 and with a second printing unit 12, the surfaces of a paper web facing away from each other 14 are arranged.
- the paper web 14 is driven by a drive roller 16 in the direction indicated by arrow A. moved forward. You can also by the drive roller 16 withdrawn again to e.g. a defined restart to realize.
- a fixing station 18 and a cooling device 20 arranged in this order along the paper web 14.
- the printing device and its function is in detail described in WO 98/39691, which forms part of the disclosure this registration is.
- the first printing unit 10 has a first photoconductor band 22 which runs on roles that are not discussed here is, and that in the indicated by the arrow B. Direction is moving. There is a first on the first photoconductor band 22 Character generator 24 and a first developer station 26 arranged. The first is at a first transfer printing point 28 Photoconductor tape 22 with a likewise not explained in more detail Rolled first transfer belt 30 in contact, the moves in the direction of arrow C.
- the first transfer belt is located at a second transfer printing point 32 30 with the upper surface of the paper web 14 in FIG. 1 Contact.
- a first reflex light barrier is located near the second transfer printing point 32 34 on the first transfer belt 30 in its direction of movement arranged in front of the second transfer printing point 32.
- the second printing unit 12 is similar to the first printing unit 10 built. It has a second photoconductor band 36, one second character generator 38 and a second developer station 40, the second photoconductor band 36 extending in the direction of the Arrow D moves and at a third transfer location 42 a second transfer belt 44 is in contact. This moves itself in the direction of arrow E and stands at a fourth transfer location 46 with the lower surface of the paper web in FIG. 1 14 in contact. A second reflex light barrier 48 is near the fourth transfer printing point 46 on the second transfer belt 44 arranged.
- the printing device has a device controller GS for controlling of the printing company.
- the GS device control has a control panel B connected to which this typed print commands can be.
- a control ST is with the device control GS connected.
- the control ST, the device control GS and the control panel B and their function are in WO 98/39691 described in more detail.
- the control ST is with the character generators 24, 38, the reflex light barriers 34, 48 and with the Drive roller 16 via signal lines or control lines connected, omitted for better clarity in Figure 1 are.
- the mode of operation of the first printing unit 10 is described below explained. The same applies to the second printing unit 12.
- the first character generator 22 applies to the first photoconductor belt 22 24 applied a latent charge image.
- the character generator 24 can be an LED character generator as he e.g. is described in WO 98/39691, or it can be the latent Generate image using laser diodes. This charge image is colored by the first developer station 26 with toner.
- the toner image is transferred to the first at the first transfer printing location 28 Transfer ribbon 30 reprinted.
- the toner image is printed on the paper web 14 and in the fixing station 18 fixed.
- the one heated up by fixing Paper web 14 is then in the cooling device 20 cooled.
- the first character generator 24 increases The beginning of each picture is a mark outside of the actual one Printing area on the first photoconductor tape 22 as a latent Image applied. These brands are also on the first developer station 26 colored with toner and on the first transfer printing point 28 to the first transfer belt 30. These toner marks are from the first retro-reflective sensor 34 recorded. Depending on their acquisition status generates a signal that is transmitted to the control ST becomes.
- the basic time is determined in a calibration process Print image from the time of printing on the first character generator 24 until the transfer time on the paper web 14 on the second Transfer location 32 required.
- the photoconductor belt 22, the transfer belt 30 and the paper web move with the same constant speed.
- the transport of the paper web 14 becomes dependent on such a time delay this basic time started that the toner images on the second Transfer point 32 exactly in the desired form window be reprinted.
- the first reflex light barrier 34 arranged as close as possible to the second transfer printing point 32. This is the largest part of the route, e.g. 98% monitors the toner image until it is transferred onto the paper web 14 travels.
- the target time is then 98% of the Base time set.
- the print image is then printed with the desired one Accuracy printed in the form on the paper web, if the measured running time corresponds to the target time. If there is sufficient space, the retro-reflective sensor can 34 also directly at the second transfer printing point 32 be arranged.
- the printing operation is interrupted.
- the paper web 14 is withdrawn to the extent that at restart the printing process the printing without release a gap at the last printing position continued can be.
- a new calibration process is carried out. To do this, the procedure described above can be repeated be carried out, or the new basic time can be done from the last measured transit time or from the mean of the last measured runtimes can be determined.
- a new start The printing process is then based on this new one Basic time performed.
- FIG. 2 shows the timing of the just described Process.
- Time is t as the abscissa and is ordinate the speed P of the paper web 14 is plotted.
- the paper web 14 is at rest, and the first character generator 24 begins, the four printed pages So1 to So4 to write on the first photoconductor tape 22.
- the second character generator 38 begins at a later time T1 four pages Su1 to Su4 on the second photoconductor belt 36 to write because the bottom time for the second Printing unit 12 is smaller than that for the first printing unit 10.
- the paper web is in an area B1 up to a point in time T2 14 at rest. Then in an area B2 up to a point in time T3 accelerates it to its final speed.
- the pages So1 to So4 on the second transfer location 32 and the pages Su1 to Su4 on the fourth transfer point 46 is printed onto the paper web 14. If the controller does a deviation of the measured runtime from the target time, the printing operation becomes too interrupted at a time T4. In a range B4 up to At a time T5 the paper web 14 is stopped and so far withdrawn that with a new start a new one Print page in the designated area of the next unprinted Form can be reprinted.
- the controller has during the process just described determines the new basic time and leaves the first character generator 24 begin at a time T6, four more pages To write So5 to So8 on the first photoconductor tape. To a the second character generator also begins at a later time T7 38, four more pages Su5 to Su8 on the second To write photoconductor tape 36.
- the paper web stays in one Area B5 is at rest until a time T8 and is in an area B6 accelerated again to its final speed. From time T9, pages So5 to So8 at the second transfer location 32 and pages Su5 to Su8 the fourth transfer printing point 46 in an area B7 onto the paper web 14 reprinted.
- Figure 3 shows a second embodiment of an electrographic Printing device with a first printing unit 50 and with a second printing unit 52 similar to the first printing unit 10 and the second printing unit 12 of the first embodiment in Figure 1.
- the same elements have the same Reference signs as there.
- the first developer station 26 here are five developer stations 26a to 26e on the first one Arranged photoconductor belt 22, and instead of the second developer station 40 are also five developer stations here 40a to 40e arranged on the second photoconductor belt 36.
- first and on the second transfer belt 30, 44 is in each case a mirror plate not shown as a brand firmly attached.
- a first reflex light barrier 54 and a second reflex light barrier 56 on the first transfer belt 30 and on second transfer belt 44 are arranged.
- the printing process corresponds to the second embodiment that of the first embodiment.
- "collection mode” a multicolored printed image on the paper web 14 be generated.
- This collection mode is in detail in the WO 98/39691. The sequence of such a collection mode is only explained for the first printing unit 50 in the following. The same applies to the second printing unit 52.
- the transport of the paper web 14 is stopped and so far withdrawn that when starting the paper transport again at the second transfer location 32 to the following unprinted form can be printed on the paper web 14 can.
- From the first character generator 24 at a first Circulation of the first photoconductor tape 22 four latent images correspond to four printed pages generated on this. This four latent images are shared with the developer station 26a Colored toner in a first color. At the first transfer location 28 these four toner images become the first Transfer the color to the first transfer belt 30.
- the first transfer belt 30 is turned on the second transfer printing point 32 is pivoted away from the paper web 14, thus the toner images as they pass the paper web 14 do not smudge or smear them.
- the first Reflex light barrier 54 detects the mark on the first Transfer belt 30 and gives according to their detection state a signal to a controller.
- the control is similar to the first embodiment, in FIG. 3 but not shown. It determines the from the signals Orbital period of the brand and forms an average.
- the first photoconductor belt 22 and the first transfer belt 30 run at the same, constant speed around, and out of Orbital period of the brand is determined when the first character generator 24 must begin, four more latent Images corresponding to four more printed pages on the first To produce photoconductor tape 22 so that they are congruent the four toner images are printed on the first transfer belt 30 become.
- the first character generator 24 starts at the specified one Time with it in a second round of the first photoconductor belt 22 further four latent images corresponding to four to generate further printed pages on the first photoconductor belt 22. From the developer station 26b, these four latent ones Images colored with toner in a second color and at the first transfer printing point 28 onto the first transfer belt 30 congruent to the four toner images with the first color transfer-printed.
- a third, a fourth and a fifth circulation of the first photoconductor belt 22 each four further latent images of the generates the first character generator 24 on the photoconductor belt 22, from the developer stations 26c, 26d, 26e with toner one third, fourth and fifth colors and at the first transfer location 28 congruent to the four Toner images with the first and second color on the first Transfer ribbon 30 can be re-printed.
- This procedure can create multi-color toner images in the collecting mode congruent on the first transfer belt 30 be reprinted. Then the first transfer belt 30 again at the second transfer printing point 32 to the paper web 14 pivoted, and the paper transport is started again in such a way that the four multi-colored congruent on the first Transfer ribbon 30 pages printed on the desired Position on the paper web 14 can be printed. The Collection mode is now finished and you can enter one below new collection mode started or continuously in one Color continues to be printed.
- Parallel to the collection mode of the first printing unit 10 can the second printing unit 52 execute a similar collecting mode. There can also be a different number of developer stations each Photoconductor tape can be used.
- FIG. 4 shows a sequence in the collecting mode in the exemplary embodiment according to FIG. 3.
- Time t is plotted as the abscissa and speed P of the paper web 14 is plotted as the ordinate.
- the first character generator 24 begins at a time T0 to generate five printed pages as latent images on the first photoconductor belt 22.
- the collection mode is then started, in which during the time T TF1 , which the first transfer belt 30 requires for one revolution, four latent images corresponding to four printed pages are generated by the first character generator 24 on the first photoconductor belt 22 and by one of the developer stations, for example the developer station 26b, can be colored with red toner.
- a latent image on the photoconductor tape 22 generated and e.g. from the developer station 26c colored with green toner because only the fourth side should contain green, and be in a third pass again four latent images corresponding to four printed pages and from the developer station 26c with black toner inked.
- the second character generator 38 also begins to generate five latent images on the second photoconductor belt 36. Subsequently, the second printing unit 12 likewise begins a collection mode, two latent images being generated during the first passage of the second transfer belt 44 during the time T TF2 , which the developer station 40b colors with green toner. In a second run, two and in a third run four latent images are generated, each during the time T TF2, which are colored by the developer station 40a or 40c with red or with black toner.
- the two exemplary embodiments presented can be also combine.
- a printing device available with precise at high speed a form can be printed. If necessary, this can Printing can also be done in multiple colors.
- the carrier material a carrier tape in the form of a continuous paper web 14 used.
- the invention is also in Printing devices can be used in which as a carrier material Cut sheets can be used.
- the photoconductor tape 22, 36 the use of a photoconductor drum is also possible. Lich.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Control Or Security For Electrophotography (AREA)
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Color Electrophotography (AREA)
Abstract
Description
- Fig. 1
- ein Ausführungsbeispiel einer Druckeinrichtung mit einem Sensor zum Erfassen einer Marke,
- Fig.2
- eine schematische Ansicht des Ablaufs eines Druckvorganges der Druckeinrichtung,
- Fig.3
- ein anderes Ausführungsbeispiel zum mehrfarbigen Drucken, und
- Fig.4
- einen Ablauf eines Sammelmodus des Ausführungsbeispieles nach Fig.3.
- 10
- erstes Druckwerk
- 12
- zweites Druckwerk
- 14
- Papierbahn
- 16
- Antriebsrolle
- 18
- Fixierstation
- 20
- Kühleinrichtung
- 22
- erstes Fotoleiterband
- 24
- erster Zeichengenerator
- 26
- erste Entwicklerstation
- 26a bis 26e
- xEntwicklerstation
- 28
- erste Umdruckstelle
- 30
- erstes Transferband
- 32
- zweite Umdruckstelle
- 34
- erste Reflexlichtschranke
- 36
- zweites Fotoleiterband
- 38
- zweiter Zeichengenerator
- 40
- zweite Entwicklerstation
- 40a bis 40e
- Entwicklerstation
- 42
- dritte Umdruckstelle
- 44
- zweites Transferband
- 46
- vierte Umdruckstelle
- 48
- zweite Reflexlichtschranke
- 50
- erstes Druckwerk
- 52
- zweites Druckwerk
- 54
- erste Reflexlichtschranke
- 56
- zweite Reflexlichtschranke
Claims (24)
- Elektrographische Druckeinrichtung mit mindestens einem Druckwerk (10, 12) mit einem Tonerbildträger, auf dessen Umfangsfläche Toner gemäß einer bildförmigen Verteilung auftragbar ist,
wobei der Tonerbildträger einen Fotoleiter (22, 36), dessen äußere Umfangsfläche mit einem latenten Ladungsbild aufladbar ist, und ein Transferband (30, 44) hat, auf das der auf dem Fotoleiter (22, 36) vorhandene Toner an einer ersten Umdruckstelle (28, 42) übertragbar ist,
Mittel vorgesehen sind, durch die ein Trägermaterial (14) so an dem Transferband (30, 44) vorbeigeführt wird, daß der darauf angeordnete Toner an einer zweiten Umdruckstelle (32, 46) auf das Trägermaterial (14) übertragbar ist,
längs eines Umfangsabschnittes des Fotoleiters (22, 36) eine Druckvorrichtung zum Erzeugen des Tonerbildes angeordnet ist, die mindestens eine Marke auf den Fotoleiter (22, 36) druckt,
mindestens ein Sensor (34, 48) am Transferband (30, 44) angeordnet ist, der den Vorbeilauf der Marke erfaßt,
eine Steuerung die Laufzeit der Marke vom Druckzeitpunkt der Druckvorrichtung bis zum Erfassungszeitpunkt am Sensor (34, 48) ermittelt, und
abhängig von der Laufzeit auf den Transport des Trägermateriales (14) steuernd einwirkt. - Druckeinrichtung nach Anspruch 1, wobei die Steuerung die Laufzeit mit einem vorgegebenen Sollwert vergleicht, und bei dessen Überschreitung oder Unterschreitung ein Signal erzeugt.
- Druckeinrichtung nach Anspruch 2, wobei die Steuerung abhängig von dem Signal der Betrieb der Druckeinrichtung unterbricht.
- Druckeinrichtung nach Anspruch 2 oder 3, wobei die Steuerung in einem Einmeßvorgang die Grundzeit ermittelt, die das von der Druckvorrichtung aufgebrachte Tonerbild benötigt, um an der zweiten Umdruckstelle (32, 46) umgedruckt zu werden, und die Sollzeit auf der Grundlage der Grundzeit ermittelt.
- Druckeinrichtung nach Anspruch 4, wobei die Steuerung bei Auftreten des Signals die Grundzeit erneut ermittelt.
- Druckeinrichtung nach einem der vorhergehenden Ansprüche, wobei der Sensor (34, 48) im Bereich der zweiten Umdruckstelle (32, 46) angeordnet ist.
- Druckeinrichtung nach einem der vorhergehenden Ansprüche, wobei als Sensor ein Reflexsensor (34, 48) vorgesehen ist, der den Vorbeilauf der Tonermarke erfaßt.
- Druckeinrichtung nach einem der vorhergehenden Ansprüche, wobei die Druckvorrichtung mindestens eine Bilderzeugungseinheit (24, 38) zum Erzeugen eines latenten Ladungsbildes auf dem Fotoleiterband (22, 36) und mindestens eine Entwicklerstation (26, 40) hat, die das Ladungsbild mit Toner einfärbt.
- Druckeinrichtung nach einem der vorhergehenden Ansprüche, wobei als Trägermaterial eine kontinuierliche Papierbahn (14) oder Einzelblattmaterial vorgesehen ist.
- Druckeinrichtung nach einem der vorhergehenden Ansprüche, wobei der Fotoleiter eine Fotoleitertrommel oder ein Fotoleiterband (22, 36) ist.
- Druckeinrichtung nach einem der vorhergehenden Ansprüche, wobei ein zweites (12) Druckwerk zum Erzeugen eines Tonerbildes auf der von dem ersten Druckwerk (10) abgewandten Seite des Trägermaterials (14) so angeordnet ist, daß ein Duplex-Druck möglich ist.
- Elektrographische Druckeinrichtung mit mindestens einem Druckwerk (50, 52) mit einem Tonerbildträger, auf dessen Umfangsfläche Toner gemäß einer bildförmigen Verteilung auftragbar ist,
wobei der Tonerbildträger einen Fotoleiter (22, 36), dessen äußere Umfangsfläche mit einem latenten Ladungsbild aufladbar ist, und ein Transferband (30, 44) hat, auf das der auf dem Fotoleiter (22, 36) vorhandene Toner an einer ersten Umdruckstelle (28, 42) übertragbar ist,
Mittel vorgesehen sind, durch die ein Trägermaterial (14) so an dem Transferband (30, 44) vorbeigeführt wird, daß der darauf angeordnete Toner an einer zweiten Umdruckstelle (32, 46) auf das Trägermaterial (14) übertragbar ist,
längs eines Umfangsabschnittes des Fotoleiters (22, 36) eine Druckvorrichtung zum Erzeugen des Tonerbildes angeordnet ist,
auf dem Transferband (30, 44) mindestens eine Marke angeordnet ist, mindestens ein Sensor (54, 56) am Transferband (30, 44) angeordnet ist, der den Vorbeilauf der Marke erfaßt,
eine Steuerung die Umlaufzeit der Marke auf dem Transferband (30, 44) ermittelt, und
abhängig von der Umlaufzeit auf den durch die Druckvorrichtung bewirkten Druckvorgang steuernd einwirkt. - Druckeinrichtung nach Anspruch 12, wobei die Steuerung die Zeit zwischen dem Aufbringen zweier aufeinander folgender Tonerbilder auf den Fotoleiter (22, 36) auf der Grundlage der Umlaufzeit bestimmt.
- Druckeinrichtung nach Anspruch 12 oder 13, wobei die Steuerung die Umlaufzeit in einem Einmeßvorgang bestimmt.
- Druckeinrichtung nach einem der Ansprüche 12 bis 14, wobei die Druckvorrichtung mindestens eine Bilderzeugungseinheit (24, 38) zum Erzeugen eines latenten Ladungsbildes auf dem Fotoleiter (22, 36) und mindestens eine Entwicklerstation (26a bis 26e, 40a bis 40e) hat, die das Ladungsbild mit Toner einfärbt.
- Druckeinrichtung nach einem der Ansprüche 12 bis 15, wobei Mittel vorgesehen sind, durch die das Transferband (30, 44) in einem Sammelmodus wiederholt an der ersten Umdruckstelle (28, 42) vorbeigeführt wird, und daß bei jedem erneuten Vorbeiführen ein Tonerbild auf das Transferband (30, 44) auf das vorherige Tonerbild übertragen wird.
- Druckeinrichtung nach Anspruch 16, wobei Mittel vorgesehen sind, durch die das Transferband (30,44) bei jedem ten Vorbeiführen von dem Trägermaterial (14) weggeschwenkt ist.
- Druckeinrichtung nach Anspruch 16 oder 17, wobei die Steuerung auf der Grundlage der Umlaufzeit die Zeit zwischen dem Aufbringen zweier aufeinander folgender Tonerbilder auf den Fotoleiter (22, 36) so einstellt , daß sie beim Vorbeiführen des Transferbandes (30, 44) an der ersten Umdruckstelle (28, 42) dekkungsgleich umgedruckt werden.
- Druckeinrichtung nach Anspruch 18, wobei Mittel vorgesehen sind, durch die zwei aufeinander folgenden Tonerbilder jeweils von einer anderen Entwicklerstation (26a bis 26e, 40a bis 40e) mit Toner eingefärbt werden.
- Druckeinrichtung nach einem der Ansprüche 12 bis 19, wobei die mindestens eine Marke fest auf dem Transferband (30, 44) angeordnet ist.
- Druckeinrichtung nach einem der Ansprüche 12 bis 20, wobei als Sensor ein Reflexsensor (54, 56) vorgesehen ist, der den Vorbeilauf der Marke erfaßt.
- Druckeinrichtung nach einem der Ansprüche 12 bis 21, wobei als Trägermaterial eine kontinuierliche Papierbahn (14) oder Einzelblattmaterial vorgesehen ist.
- Druckeinrichtung nach einem der Ansprüche 12 bis 22, wobei der Fotoleiter eine Fotoleitertrommel oder ein Fotoleiterband (22, 36) ist.
- Druckeinrichtung nach einem der Ansprüche 12 bis 23, wobei ein zweites Druckwerk (52) zum Erzeugen eines Tonerbildes auf der von dem ersten Druckwerk (50) abgewandten Seite des Trägermaterials (14) so vorgesehen ist, daß ein Duplex-Druck möglich ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19856145 | 1998-12-04 | ||
| DE19856145 | 1998-12-04 | ||
| PCT/EP1999/009435 WO2000034831A1 (de) | 1998-12-04 | 1999-12-02 | Elektrographische druckeinrichtung mit sensor für die schlupferkennung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1141785A1 EP1141785A1 (de) | 2001-10-10 |
| EP1141785B1 true EP1141785B1 (de) | 2004-08-25 |
Family
ID=7890078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99963372A Expired - Lifetime EP1141785B1 (de) | 1998-12-04 | 1999-12-02 | Elektrographische druckeinrichtung mit sensor für die schlupferkennung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6505015B1 (de) |
| EP (1) | EP1141785B1 (de) |
| JP (1) | JP2002532739A (de) |
| DE (1) | DE59910362D1 (de) |
| WO (1) | WO2000034831A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10137861A1 (de) * | 2001-08-02 | 2003-02-27 | Oce Printing Systems Gmbh | Verfahren zum Steuern eines Druckers oder Kopierers unter Verwendung eines Tonermarkenbandes sowie eines nach dem Triangulationsprinzip arbeitenden Reflexsensors |
| DE10147684A1 (de) | 2001-09-27 | 2003-04-24 | Oce Printing Systems Gmbh | Verfahren zum Ausgleich eines Getriebespiels bei Reversierbetrieb und Vorrichtung zur Durchführung dieses Verfahrens |
| DE10160606B4 (de) | 2001-12-10 | 2006-02-02 | OCé PRINTING SYSTEMS GMBH | Vorrichtung und Verfahren zum Führen eines bandförmigen endlosen Trägermaterials in einem elektrografischen Drucker oder Kopierer |
| DE10338515B4 (de) * | 2003-08-21 | 2007-05-03 | OCé PRINTING SYSTEMS GMBH | Verfahren und Anordnung zum Steuern eines elektrofotografischen Druckers oder Kopierers |
| DE10338496B3 (de) * | 2003-08-21 | 2005-04-28 | Oce Printing Systems Gmbh | Verfahren und Anordnung zum Erzeugen von positionsgenauen Druckbildern auf einem Trägermaterial |
| DE102004007205B4 (de) * | 2004-02-13 | 2011-08-18 | Océ Printing Systems GmbH, 85586 | Verfahren und Steuereinheit zum Steuern eines elektrofotografischen Mehrfarbendruckers oder Mehrfarbenkopierers |
| US7650838B2 (en) * | 2004-10-29 | 2010-01-26 | Oce Printing Systems Gmbh | Device and method for control of a printer or copier through controlling signals |
| DE102008063955B4 (de) | 2008-12-19 | 2012-02-23 | OCé PRINTING SYSTEMS GMBH | Verfahren zum Steuern und Regeln eines endlosen Bandes in einem Drucker oder Kopierer beim Verschwenken des Bandes |
| DE102009034227A1 (de) | 2009-07-22 | 2011-01-27 | OCé PRINTING SYSTEMS GMBH | Verfahren und Vorrichtung zur Regelung einer Eigenschaft eines auf einem Trägermaterial gedruckten Druckbildes |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63212961A (ja) | 1987-03-02 | 1988-09-05 | Ricoh Co Ltd | カラ−画像形成装置 |
| DE3808620A1 (de) | 1988-03-15 | 1989-09-28 | Siemens Ag | Einrichtung zum ueberwachen des transports von blattfoermigen aufzeichnungstraegern in einem elektrofotografischen drucker |
| US5287160A (en) | 1991-07-17 | 1994-02-15 | Xerox Corporation | Registration improvement by component synchronization in color printers |
| JPH0627829A (ja) * | 1991-12-13 | 1994-02-04 | Fujitsu Ltd | 記録装置 |
| JP3149545B2 (ja) * | 1992-06-24 | 2001-03-26 | 富士通株式会社 | カラー記録装置 |
| JP3364503B2 (ja) * | 1992-11-30 | 2003-01-08 | 株式会社リコー | カラー画像形成装置 |
| JPH07225520A (ja) * | 1993-12-16 | 1995-08-22 | Ricoh Co Ltd | 画像形成装置 |
| JPH07325455A (ja) * | 1994-05-30 | 1995-12-12 | Fuji Xerox Co Ltd | 多色画像形成装置 |
| JPH0876546A (ja) * | 1994-09-08 | 1996-03-22 | Fuji Xerox Co Ltd | カラー画像形成装置 |
| US5893018A (en) * | 1996-07-31 | 1999-04-06 | Xeikon N.V. | Single-pass, multi-color electrostatographic printer with continuous path transfer member |
| JP3564953B2 (ja) * | 1996-10-28 | 2004-09-15 | 富士ゼロックス株式会社 | 画像形成装置およびその制御方法 |
| US5875380A (en) | 1997-02-18 | 1999-02-23 | Ricoh Company, Ltd. | Image forming apparatus eliminating influence of fluctuation in speed of a conveying belt to correction of offset in color registration |
| JPH1130892A (ja) | 1997-05-13 | 1999-02-02 | Ricoh Co Ltd | カラー画像形成装置 |
-
1999
- 1999-12-02 WO PCT/EP1999/009435 patent/WO2000034831A1/de not_active Ceased
- 1999-12-02 US US09/857,319 patent/US6505015B1/en not_active Expired - Fee Related
- 1999-12-02 DE DE59910362T patent/DE59910362D1/de not_active Expired - Lifetime
- 1999-12-02 EP EP99963372A patent/EP1141785B1/de not_active Expired - Lifetime
- 1999-12-02 JP JP2000587228A patent/JP2002532739A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000034831A1 (de) | 2000-06-15 |
| EP1141785A1 (de) | 2001-10-10 |
| US6505015B1 (en) | 2003-01-07 |
| JP2002532739A (ja) | 2002-10-02 |
| DE59910362D1 (de) | 2004-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0154695B1 (de) | Nichtmechanisches Druck- oder Kopiergerät für Mehrfarben- und Rückseitendruck | |
| DE10111216B4 (de) | Drucksystem und Druckverfahren | |
| DE69526746T2 (de) | Selektives flexographisches Drucken | |
| EP1203269B1 (de) | Verfahren und steuerung zur positionsregelung eines bandförmigen bildträgers in einem elektrographischen gerät | |
| DE10237095B4 (de) | Drucksystem und Ausrichtungssteuerverfahren zur Zeit eines Druckbeginns des Drucksystems | |
| DE10309236B4 (de) | Vorrichtung und Verfahren zum Drucken auf beiden Oberflächen einer Bahn | |
| WO1994027193A1 (de) | Elektrografische druckeinrichtung zum bedrucken von bandförmigen aufzeichnungsträgern unterschiedlicher bandbreite | |
| DE102011082395B4 (de) | Reflexdrucken | |
| WO1992014192A1 (de) | Kopiergerät mit einem bandförmigen transferelement | |
| DE10139775B4 (de) | Drucker zum Aufbringen eines Druckbildes auf eine Endlosbahn | |
| DE4422634C2 (de) | Bilderzeugungseinrichtung | |
| EP1141785B1 (de) | Elektrographische druckeinrichtung mit sensor für die schlupferkennung | |
| DE19749596C1 (de) | Verfahren und Vorrichtung zur Steuerung eines traktorlosen Aufzeichnungsträger-Antriebes in einem elektrografischen Drucker | |
| DE10162538B4 (de) | Papierantriebs-Blattzuführsystem für einen Farbdrucker und Verfahren zum Ausrichten und Positionieren eines Druckmediumblattes in einem Farbdrucker | |
| EP0789860B1 (de) | Multifunktionale elektrografische druckeinrichtung | |
| EP0890140B1 (de) | Verfahren und schaltungsanordnung zum drucken eines druckbildes | |
| EP1141787B1 (de) | Verfahren und einrichtung zur regelung der tonerkonzentration in einem elektrografischen prozess | |
| EP0946902B1 (de) | Elektrografische druckeinrichtung mit einander gegenüberliegenden druckwerken | |
| DE10142326B4 (de) | Drucksystem aus meheren elektrofotografischen Druckgeräten, die nacheinander einen bandförmigen Aufzeichnungsträger bedrucken. | |
| DE4447193A1 (de) | Verfahren zum Erzeugen zusammengesetzter Tonerbilder | |
| DE3874326T3 (de) | Elektrostatographisches verfahren und gerät zur herstellung von mehrfarbigen zweiseitigen kopien. | |
| EP1668425B1 (de) | Verfahren und vorrichtung zum steuern der umlaufgeschwindigkeit eines endlosen bandes sowie anordnung zum erzeugen einer bremskraft auf ein endloses band | |
| DE4018462C2 (de) | Elektrofotografische Druckeinrichtung | |
| EP0478820A1 (de) | Druck- oder Kopiergerät für ein- oder mehrfarbigen Simplex- und Duplexdruck | |
| EP0946901B1 (de) | Elektrografische druckeinrichtung mit zwei umdruckstellen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| 17P | Request for examination filed |
Effective date: 20010702 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE FR GB |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 59910362 Country of ref document: DE Date of ref document: 20040930 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20041219 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20050526 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20091230 Year of fee payment: 11 Ref country code: FR Payment date: 20100105 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20091125 Year of fee payment: 11 |
|
| BERE | Be: lapsed |
Owner name: *OCE PRINTING SYSTEMS G.M.B.H. Effective date: 20101231 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20101202 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110831 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110103 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101202 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130227 Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59910362 Country of ref document: DE Representative=s name: PATENTANWAELTE SCHAUMBURG, THOENES, THURN, LAN, DE |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59910362 Country of ref document: DE Representative=s name: PATENTANWAELTE SCHAUMBURG, THOENES, THURN, LAN, DE Effective date: 20130820 Ref country code: DE Ref legal event code: R081 Ref document number: 59910362 Country of ref document: DE Owner name: OCE PRINTING SYSTEMS GMBH & CO. KG, DE Free format text: FORMER OWNER: OCE PRINTING SYSTEMS GMBH, 85586 POING, DE Effective date: 20130820 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59910362 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59910362 Country of ref document: DE Effective date: 20140701 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140701 |