EP3504594A1 - Farbdruckwerk mit einer steuervorrichtung und jeweils einer druckstation für jede farbe - Google Patents
Farbdruckwerk mit einer steuervorrichtung und jeweils einer druckstation für jede farbeInfo
- Publication number
- EP3504594A1 EP3504594A1 EP17761841.0A EP17761841A EP3504594A1 EP 3504594 A1 EP3504594 A1 EP 3504594A1 EP 17761841 A EP17761841 A EP 17761841A EP 3504594 A1 EP3504594 A1 EP 3504594A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transfer belt
- roller
- control
- color
- sensor means
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 54
- 238000012546 transfer Methods 0.000 claims abstract description 105
- 230000001276 controlling effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000003086 colorant Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 241000287107 Passer Species 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003909 pattern recognition Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G03G15/14—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
- G03G15/1615—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 relating to the driving mechanism for the intermediate support, e.g. gears, couplings, belt tensioning
-
- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
- G03G15/0189—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to an intermediate transfer belt
-
- 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
- G03G15/5054—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 characteristics of an intermediate image carrying member or the characteristics of an image on an intermediate image carrying member, e.g. intermediate transfer belt or drum, conveyor belt
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00135—Handling of parts of the apparatus
- G03G2215/00139—Belt
- G03G2215/00143—Meandering prevention
- G03G2215/00156—Meandering prevention by controlling drive mechanism
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00135—Handling of parts of the apparatus
- G03G2215/00139—Belt
- G03G2215/00143—Meandering prevention
- G03G2215/0016—Meandering prevention by mark detection, e.g. optical
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
- G03G2215/0103—Plural electrographic recording members
- G03G2215/0106—At least one recording member having plural associated developing units
Definitions
- Color printing unit with a control device and one printing station for each
- the invention relates to a color printing unit, each with a printing station for each color and one anode rollers per printing station, with a guided over a deflection and a control roller the anode rollers covering endless transfer belt, with sensor means for detecting in particular the density and / or position of on the transfer belt printed reference marks and with a control device for controlling the straight-line runout of the transfer belt and the position of the control roller by means of a servomotor depending on the detected properties of the reference marks.
- Such color printing units are generally state of the art for electrophotographic printers. Even in large format printing with a printing width of> 297 mm, LED or laser presses are generally known. These have at least four electrophotographic printing units - one for each color - in the respective printing width. For full-color prints, the colors cyan, magenta, yellow and black are superimposed. For the realization in detail are manifold possibilities in the literature, for example in the book “Handbook of the print media" of Helmut Kipphan (ed.), Springer publishing house Berlin Heidelberg 2000, chapter 5.2.3 "inking unit (development unit) and toner", pages 726 to 730, described. In addition, there are a variety of large format color printers on the market that use these and similar technologies.
- the four colors are collected and then transferred all together to the substrate in one step.
- Both the transfer from the photoconductors to the transfer belt and from the transfer belt to the substrate takes place electrostatically analogously to the transfer described above for a monochrome process from the photoconductor to the substrate.
- the toner is fixed on the substrate.
- DE 10 2012 104 584 A1 discloses a method for controlling a color printer or color copier, in which a color separation of a first color and a color separation of a second color are printed on the printing material to produce a printed image. Furthermore, at least one control panel is printed with a predetermined pattern of the first and second colors. With the aid of a color value sensor, the total color value of the control field is measured. Furthermore, a deviation between the measured color value and a desired color value of the control field is determined, and depending on the deviation, a control signal for correcting the registration error between the two color separations is generated. In such color prints of the substrate is stretched by means of transport elements.
- a transfer belt unit which comprises a steering mechanism with an automatic alignment method for the transfer belt, which comprises a limiting section configured in such a manner that a steering roller for correcting the deviation of the position of the transfer belt in width is rotatable about a steering axis line the inclination of the steering roller is limited due to the rotation.
- an image forming apparatus having a color difference detection pattern output device which outputs an image signal for producing a color difference detection pattern for detecting periodic rotation variations occurring in the image forming apparatus.
- the image forming apparatus further comprises pattern recognition means for detecting the color difference detection pattern on an endless carrier.
- Phase detecting means detects the rotation phase of at least one of the image carriers of the image forming apparatus on the basis of a detection signal of Pattern recognition device.
- the image forming apparatus is provided with rotational phase control for individually controlling the rotational phase of at least one of the image carriers of the image forming device and the endless carriers on the basis of the phase information detected by the phase detecting device.
- JP 3399492 B2 describes a belt drive control apparatus which has excellent responsiveness and accuracy in position correction and suppresses high frequency vibration in the normal state after winding.
- a position and velocity calculation unit determines at least two of the meander variables. The meandering changes the variable and the worm speed in response to the detection signal from the position of the transfer tape.
- a control unit changes the scanning period of the transfer belt or the control gain based on a result of the calculation by the position and speed calculating unit.
- a driver circuit generates a control voltage corresponding to the control output of the control unit to drive a steering motor.
- the transfer belt it is therefore known from these cited references to arrange at least one optical sensor on the transfer belt, with the aid of which, for example, the density and / or position of reference marks printed on the transfer belt can be measured.
- different sizes can be determined, such as stitching, passer, ie the positional accuracy of the sub-color prints (color separations) on the printed product to each other (also called color register), and the orientation of the stations.
- the sensor can be fixedly arranged in the region of a deflection roller provided for this purpose in a stationary manner, in the region of which the transfer belt is conveyed wave-free.
- the prior art sensor is placed against a particular tension roller.
- the tension roller smoothes the transfer belt at this point, so that errors in the detection of the optical density are avoided, for example, by a waviness of the transfer belt.
- a special guide roller or such a special tension roller are an additional expense that beats both in terms of cost and in terms of space requirements significantly book.
- the invention is based on the object, a color printing unit of the type mentioned in such a way that in a simple manner applied to the transfer belt reference marks can be reliably evaluated, so that the transfer belt by means of a scheme can always be kept centered.
- the sensor means are arranged in the region of the control roller for the transfer belt and that are excluded during the measurement, at least for the period in which the printed reference marks under the sensor means along relative movements between the sensor means and the control roller.
- the transfer belt is also stretched smooth, so that the otherwise used deflecting and / or tensioning roller is saved, whereby the color printing unit can be produced more cheaply and in particular builds compact by the saved rollers.
- control device is designed such that a deflection of the control roller is avoided during the period in which the printed reference markings run under the sensor means. This can therefore be implemented without hesitation, since the band control easily cope with short interruptions such as 100 mm reference marks in the feed direction.
- the strip is attached to the supports or bearings of the control roller.
- the sensor means may be formed by a contact image sensor.
- control roller connected to the control device is so deflected by the servo motor in the X and Y directions, so that the transfer belt always runs in the middle.
- the sensor means are arranged above the control roller and the transfer belt. It is advantageous if the control roller is simultaneously formed as a tension roller.
- the clamping effect can be applied as known at both ends of the control roller uniformly by spring force or eg by adjusting cylinder, but it can also be the motors of the control roller initially controlled so that a double-sided same clamping effect occurs on the transfer belt and that the control signals for the control roller superimposed on the clamping signals.
- the control roller would serve both as a deflection roller and as a tension roller and as a control roller.
- Figure 1 is a printing station with a photoconductor drum, an associated
- Figure 2 shows the arrangement of several printing stations along the transfer belt
- Figure 3 shows an inventive design of the machine control of
- FIG. 1 shows a schematic, highly simplified illustration of a compact printing station 1 of a color printing unit with a photoconductive drum 2 (OPC - organic photoconductor drum).
- a photoconductive drum 2 OPC - organic photoconductor drum
- a housing 3 Arranged around this photoconductive drum 2 in a housing 3 is a charging unit, a developer unit, an exposure unit and an erasing and cleaning device, as described in detail in German Patent Application DE 10 2016 208 479.8.
- an endless transfer belt 5 (ITB - Intermediate Transfer Belt) is guided to a control roller 6 for the transfer belt 5.
- the aborted in the representation reproduced transfer belt 5 is thereby moved in the direction 7 according to the arrow.
- the control roller 6 is deflected with a suitable control by means of a servomotor 8 in the X and Y directions, so that the transfer belt 5 always runs in the middle, and possibly is tensioned.
- a servomotor 9 for the anode roller 4 can bring them to minimize wear in its rest position, if it is not needed in the current printing process.
- the surface of the photoconductor drum 2 is electrostatically charged negatively by means of the charging unit.
- the charge on the photoconductor drum 2 is now erased by exposure according to the information of the image or image to be printed by means of the exposure unit at the locations where the toner is to be applied to the photoconductor drum 2 by the photoconductive drum 2 is conductive at the exposed locations and consequently lose their cargo.
- the negatively charged toner is transferred from a mixing unit via a toner transfer roller to the exposure-neutralized, positively charged sites of the photoconductor drum 2.
- the toner-attached areas of the photoconductor drum 2 are further rotated to the anode roller 4 and the transfer belt 5, where the negatively charged toner of the photoconductor drum 2 is attracted to the anode roller 4 and adhered to the transfer belt 5 therebetween.
- the transfer belt 5 then transports the toner image in a known manner to the medium to be printed in a transfer station.
- the charge on the photoconductor drum 2 is made uniform by means of the extinguishing device and subsequently the residual toner remaining, if any, is removed from the photoconductor drum 2 by the cleaning device.
- sensor means (10), which scan the transfer belt 5, are arranged above the control roller 6 and the transfer belt 5.
- the sensor means may be, for example, an optical sensor, three optical sensors associated with the three regions 11 to 13, or a contact image sensor (CIS).
- CIS contact image sensor
- the density and / or position of printed on the transfer belt 5 reference marks are measured. From the detected measured values, various parameters such as stitching, passer, i. determine the positional accuracy of the partial color prints on the printed product to each other and the orientation of the stations.
- a color printer or color copier has for each of its colors, for example according to the CMYK color model, such a printing station 1c to 1k described with reference to FIG. 1, which are arranged one behind the other along the upper run of the transfer belt 5, as FIG. 2 shows. Under the upper run of the transfer belt 5, the associated anode rollers 4c to 4k are shown hidden. These printing stations 1c to 1k print on only the central area of the transfer belt 5 with payload information, the payload or print area 11, which is transferred to the print medium. The left side region 12 and the right side region 13 of the transfer belt 5 usually remain laterally free.
- the arrow points again in the running direction 7 of the transfer belt 5, so that it can be seen that the printing area 1 1, the printing stations 1 c to 1 k starts in succession.
- the printing stations 1c to 1k can print their respective color images one above the other on the printing area 11, so that a latent colored toner Image on the transfer belt 5 is created, which can be transferred to the medium to be printed to a color print image.
- These printing stations 1c to 1k have to be matched to one another with respect to an optimum printed image, for example with respect to register-accurate printing of the individual printing stations 1c to 1k, line thickness, area coverage, colors and printed image of the individual units.
- This automatic tuning and calibration takes place on the transfer belt 5 and not on a print medium.
- FIG. 3 shows a machine controller for a color printing unit according to the invention, in which a control device 14 is provided which is intended to ensure that the transfer belt 5 does not run out of the middle after a relatively short operating time.
- the sensor device associated with the control device 14 essentially consists of two forked light barriers, three reflection light barriers and one gravitational sensor.
- the servomotor 8 responsible for the adjustment of the control roller 6 in the X and Y directions is connected to the control device 14 so that the transfer belt 5 runs straight and centered. By adjusting the control roller 6 in the X and Y directions, the servomotor 8 directly influences the drift of the transfer belt 5.
- This actuator 8 may be assigned an initial sensor 15. During its initialization phase, the servo motor 8 moves with its switching flag until the switching point of the initial sensor 15, since the motor position is not present as an absolute value. From this point, the position is then calculated and stored again and again depending on the travel.
- the initial sensor 15 is a fork light barrier whose light beam interrupts the switching flag.
- An emergency shutdown should, if for any reason the transfer belt 5 drifts too much in one direction, bring the transfer belt 5 immediately to the still belt.
- two reflex light barriers 16 are mounted under one side of the transfer belt 5. In the normal case, the transfer belt 5 runs between these two reflex light barriers 16. However, if the transfer belt 5 runs out of this area, this is detected and leads to the immediate switching off of the transfer belt 5.
- This mechanism can also be used to detect whether, after a change of the transfer belt 5 is inserted correctly.
- a control sensor 17 detects a white, affixed to the transfer tape 5 index strip 18 and thereby calls in the control device 14, the function with the control algorithm.
- the reflected light barrier used as a control sensor 17 is directed from above onto the inner side of the transfer belt 5.
- the control sensor 17 is mounted obliquely to the transfer belt 5, so that only the index strip 18 reflects enough light and the control sensor 17 is not always switched by detecting the transfer belt 5.
- a tape sensor 19 detects the position of the transfer belt 5.
- the fork light barrier used for this purpose supplies an analog signal, which is evaluated by the control device 14 for controlling the servomotor 8.
- a programmed digital PI controller is provided in the control device 14.
- the control function in the program is called once per revolution. The call occurs when the control sensor 19 detects the index strip 18. This ensures that this is always done at the same time intervals, but also the tape position is scanned in the same place.
- sampling is performed 50 times at the sampling time and the average value is calculated from these values.
- the printer has a gravitational sensor 20, with which a possible obliquity of the large format color printer is detected. If this skew exceeds the control range of the transfer belt 5, the user is prompted to align the printer. The user is shown on a monitor which pedestal he has to adjust.
- the printer has a temperature and humidity sensor, which may be installed in the control device 14. The measured values of these sensors are taken directly into account by the control algorithm.
- the control device 14 effects the printing of at least one predestined or fixed pattern by means of the printing stations 1c to 1k preferably on at least one of the side regions 12 and 13 of the transfer belt 5.
- This pattern subsequently read by the sensor means 10 is matched in the control device 14 with predetermined pattern images. Based on this evaluation, the individual components are driven until the predestined pattern on the transfer belt 5 corresponds to the specified pattern image.
- the evaluation and the adjustment are preferably carried out continuously, in particular changes in temperature and / or humidity are recorded and taken into account.
- the control device 14 ensures, in particular, the register-accurate printing of the individual printing stations relative to each other, so that the lines printed by the printing stations 1 c to 1 k on the side regions 12 and 13 of the transfer belt 5 lie one above the other. Further, the controller 14 sets the line thickness, the areal coverage, the toner application, the color calibration, the color mixing, the Color homogeneity, the scale adjustment and the speed calibration and the straight running of the transfer belt 5 a.
- These operations can preferably be done online during a print. However, they can also be performed outside a printing process at any time.
- larger patterns in the middle pressure range 1 1 can be applied to the transfer belt 5 between two print jobs, where else the print medium is described.
- At least one optical sensor 10 is arranged on the transfer belt, with the aid of which the density and / or position of the reference markings printed on the transfer belt 5 are measured.
- three individual sensors may be arranged in the middle of the transfer belt 5 and on the side regions 11 and 12. But it can also scan the contact image sensor, the entire width of the transfer belt 5.
- the sensor according to the prior art is arranged opposite a special tensioning roller. This tension roller smoothes the transfer belt 5 at this point, so that errors in the detection of the optical density are avoided, for example, by a waviness of the transfer belt.
- control device 14 is designed such that it controls the color printing unit so that for the period in which the printed reference marks run under the sensor means 10, a deflection and control of the control roller 6 is prevented. This can be implemented practically well, since the band control copes with short interruptions such as 100 mm reference marks in the feed direction without any problems.
- the reference marks can be reliably detected by the sensor means, they must either be applied to the transfer belt 5 in a fixed cycle and the control device 14 interrupts the control of the control roller 6 synchronously or they are detected by a sensor arranged in front of the sensor means, the then the controller 14 transmits a signal for interrupting the control of the control roller 6.
- This task for example, the control sensor 17 take over.
- the sensors 10 for example the contact image sensor, are mounted on a strip which follows the movements of the control roller 6. It is therefore essential that no relative movements between the sensor means 10 and the control roller 6 can occur during the measurements. LIST OF REFERENCE NUMBERS
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Electronic Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016216017.6A DE102016216017A1 (de) | 2016-08-25 | 2016-08-25 | Farbdruckwerk mit einer Steuervorrichtung und jeweils einer Druckstation für jede Farbe |
PCT/EP2017/071405 WO2018037104A1 (de) | 2016-08-25 | 2017-08-25 | Farbdruckwerk mit einer steuervorrichtung und jeweils einer druckstation für jede farbe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3504594A1 true EP3504594A1 (de) | 2019-07-03 |
EP3504594B1 EP3504594B1 (de) | 2020-07-29 |
Family
ID=59791052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17761841.0A Active EP3504594B1 (de) | 2016-08-25 | 2017-08-25 | Farbdruckwerk mit einer steuervorrichtung und jeweils einer druckstation für jede farbe |
Country Status (6)
Country | Link |
---|---|
US (1) | US10551769B2 (de) |
EP (1) | EP3504594B1 (de) |
CN (1) | CN109564400B (de) |
DE (1) | DE102016216017A1 (de) |
ES (1) | ES2822952T3 (de) |
WO (1) | WO2018037104A1 (de) |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3884271T2 (de) | 1987-04-28 | 1994-03-31 | Canon Kk | Gerät zur Multibilderzeugung. |
US5394223A (en) | 1992-08-17 | 1995-02-28 | Xerox Corporation | Apparatus for image registration |
JPH09146329A (ja) | 1995-11-20 | 1997-06-06 | Fuji Xerox Co Ltd | 画像形成装置 |
JP3399492B2 (ja) | 1995-12-20 | 2003-04-21 | 富士ゼロックス株式会社 | ベルト駆動制御装置 |
JP2004004510A (ja) | 2002-04-17 | 2004-01-08 | Ricoh Co Ltd | 光走査装置及び画像形成装置 |
KR100607991B1 (ko) * | 2004-07-07 | 2006-08-02 | 삼성전자주식회사 | 화상제어장치용 광센서의 광량편차보정방법 및 인쇄기의화상제어장치 |
JP2006215203A (ja) * | 2005-02-02 | 2006-08-17 | Kyocera Mita Corp | 画像形成装置 |
JP2009036914A (ja) * | 2007-07-31 | 2009-02-19 | Canon Inc | 画像形成装置及び画像形成方法 |
JP2009122388A (ja) * | 2007-11-14 | 2009-06-04 | Fuji Xerox Co Ltd | 画像形成装置 |
DE102008012216A1 (de) * | 2008-03-03 | 2009-09-17 | Psi Laser Gmbh | Verfahren zum Bedrucken von Papier und Beschreiben von RFID-Transpondern |
JP4513912B2 (ja) * | 2008-03-21 | 2010-07-28 | 富士ゼロックス株式会社 | 画像形成装置用ベルト、ベルト張架装置及び画像形成装置 |
JP5477556B2 (ja) * | 2009-08-24 | 2014-04-23 | 株式会社リコー | 反射型光学センサ及び画像形成装置 |
DE102010007530A1 (de) * | 2010-02-11 | 2011-08-11 | ROTH + WEBER GmbH, 57520 | Vorrichtung zum Reproduzieren von auf Vorlagen befindlichen Abbildungen |
JP5631021B2 (ja) * | 2010-02-18 | 2014-11-26 | キヤノン株式会社 | 画像形成装置 |
JP2012098680A (ja) * | 2010-11-05 | 2012-05-24 | Fuji Xerox Co Ltd | 画像形成装置および処理プログラム |
JP2013127609A (ja) * | 2011-11-18 | 2013-06-27 | Canon Inc | 画像形成装置 |
DE102012104584A1 (de) | 2012-05-29 | 2013-12-05 | Océ Printing Systems GmbH & Co. KG | Verfahren zum Steuern eines Farbdruckers oder Farbkopierers |
JP6242217B2 (ja) * | 2014-01-22 | 2017-12-06 | キヤノン株式会社 | 画像形成装置 |
JP6355432B2 (ja) | 2014-05-27 | 2018-07-11 | キヤノン株式会社 | ベルトユニット及びこれを備える画像形成装置 |
JP6452029B2 (ja) * | 2014-08-29 | 2019-01-16 | 株式会社リコー | 画像形成装置 |
DE102016208479A1 (de) | 2016-05-18 | 2017-11-23 | Roth + Weber Gmbh | Elektrofotografischer Großformat-Farbdrucker |
-
2016
- 2016-08-25 DE DE102016216017.6A patent/DE102016216017A1/de not_active Withdrawn
-
2017
- 2017-08-25 CN CN201780052050.6A patent/CN109564400B/zh active Active
- 2017-08-25 EP EP17761841.0A patent/EP3504594B1/de active Active
- 2017-08-25 US US16/325,785 patent/US10551769B2/en active Active
- 2017-08-25 WO PCT/EP2017/071405 patent/WO2018037104A1/de active Search and Examination
- 2017-08-25 ES ES17761841T patent/ES2822952T3/es active Active
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US20190227464A1 (en) | 2019-07-25 |
WO2018037104A8 (de) | 2018-04-19 |
CN109564400A (zh) | 2019-04-02 |
DE102016216017A1 (de) | 2018-03-01 |
EP3504594B1 (de) | 2020-07-29 |
WO2018037104A1 (de) | 2018-03-01 |
US10551769B2 (en) | 2020-02-04 |
CN109564400B (zh) | 2022-04-26 |
ES2822952T3 (es) | 2021-05-05 |
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