EP2030087A1 - Verfahren zur vermeidung des einflusses von schwingungsübertragung beim drucken von bildern auf einen endbildträger - Google Patents
Verfahren zur vermeidung des einflusses von schwingungsübertragung beim drucken von bildern auf einen endbildträgerInfo
- Publication number
- EP2030087A1 EP2030087A1 EP07727713A EP07727713A EP2030087A1 EP 2030087 A1 EP2030087 A1 EP 2030087A1 EP 07727713 A EP07727713 A EP 07727713A EP 07727713 A EP07727713 A EP 07727713A EP 2030087 A1 EP2030087 A1 EP 2030087A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transfer
- color toner
- tfb
- images
- image
- 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
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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0147—Structure of complete machines using a single reusable electrographic recording member
- G03G15/0152—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member
-
- 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
- G03G15/0194—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to the final recording medium
-
- 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
-
- 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
- G03G2215/0151—Apparatus for electrophotographic processes for producing multicoloured copies characterised by the technical problem
- G03G2215/0154—Vibrations and positional disturbances when one member abuts or contacts another member
Definitions
- WO 98/39691 describes a printing and copying machine according to the electrographic principle with which color printing can be carried out; the content of WO 098/39691 is hereby incorporated by reference in the following description.
- Fig. 1 is a schematic diagram of a printing device DR according to WO 98/39691 is shown, which is used to explain the invention.
- Character generators ZG z On both sides of a final image carrier AT (eg a paper web) generate charge images of the images to be printed on a charge image carrier OPC (eg a photoconductor belt). These are colored in a developer station ES with toner to toner images.
- a final image carrier AT eg a paper web
- OPC eg a photoconductor belt
- the toner images are sequentially transferred to an intermediate carrier TFB (e.g., a transfer belt) (hereinafter, this transfer location is called transfer printing station Ul) and collected there to a toner total image.
- TFB e.g., a transfer belt
- transfer printing station Ul this transfer location is called transfer printing station Ul
- This is transferred to the final image carrier AT (in the following, this transfer site is called transfer station U2) and then fixed there.
- the printing can be carried out according to WO 98/39691 and FIG. 1 on both sides of the final image carrier AT. For details, reference is made to WO 98/39691.
- the printing device When creating a multi-color image, the printing device enters a start / stop mode. While the final image carrier AT stands, the colors on the intermediate carrier TFB, the transfer belt, are collected to form a color toner overall image (a collection cycle length corresponds to the number of colors * transfer belt length). Then the final image carrier AT is started so that the total color toner image on the intermediate carrier TFB at the transfer printing station U2 is re-printed line-exactly to the previous print image on the final image carrier AT. 2 shows the time path of the formation of a print image from the generation of the charge image on the intermediate carrier, hereinafter a photoconductor belt OPC, to the transfer printing on the final image carrier AT; It is assumed that the print image is composed of two colors Fl and F2.
- each of the charge image of the two colors Fl and F2 successively generated on the photoconductor belt OPC (line Zl).
- line Z2 the position of the toned charge image of the two colors Fl and F2 at the transfer printing station U1 to the intermediate carrier, in the following a transfer belt TFB, is shown.
- Line Z3 shows the generation of the total color toner image on the transfer belt TFB at the printing station U2
- line Z4 shows the position of the total color image B transferred to the final image carrier AT. It can be seen that the full color toner image B is made up of the colors successively transferred to the transfer belt TFB Fl and F2 on the transfer ribbon TFB (line Z3) is generated and then the color toner total image B is transferred to the final image carrier AT.
- the color toner overall image is then fixed in a known manner (from WO 98/39691 removable).
- the total color toner image B from the transfer belt TFB to the final image carrier AT, it is started, accelerated to printing speed and then swung onto the transfer belt TFB (area Al in line Z4).
- the final image carrier AT is swung away from the transfer belt TFB (area A2) in line Z4) and stopped again.
- EP 1 562 084 A2 discloses a method with which both color images and single-color images can be produced with an electrophotographic printing device.
- charge images of the images are produced on a charge image carrier, these are inked with toner, the toner images are transferred to a transfer ribbon in a first transfer operation and from there to a recording medium, e.g. a paper sheet.
- the recording medium is pivoted to the transfer belt. By pivoting the recording medium to the transfer belt vibrations are generated on this and the charge image carrier, which lead to undesirable shifts of the toner images on the transfer belt. This is particularly disadvantageous in color printing, since then the individual color toner images of a color image, which are collected on the transfer belt, no longer come to lie exactly above each other.
- the problem to be solved by the invention is to provide a method in which the by the pivoting of the final image carrier to or from the intermediate carrier, for.
- vibrations generated no disturbing influence on the generation of the charge images on the charge image carrier eg. As a photoconductor band, or have no disturbing influence on the transmission of the developed charge images on the intermediate carrier.
- the disturbances on the final image carrier are then avoided if the time of generation of the charge images on the charge image carrier and / or the transfer of the toner image to the intermediate carrier is set such that the movement of the final image carrier on or off the intermediate carrier Vibrations caused by the charge image carrier can have no influence on the generation of the charge images on the charge image carrier and / or the transfer of the toner images to the intermediate carrier.
- the charge images for the next image to be printed are only generated on the charge image carrier when the vibrations generated by the pivoting process of the final image carrier have subsided.
- the charge images are generated by a character generator on the photoconductor belt and then developed into toner images which are transferred to the transfer belt and from there to the final image carrier.
- a character generator on the photoconductor belt
- toner images which are transferred to the transfer belt and from there to the final image carrier.
- the transfer printing of the toner images from the transfer ribbon to the final image carrier it is pivoted to the transfer belt, otherwise it is swung.
- the generation of the charge images on the photoconductor belt or the transfer of the toner images on the transfer belt only takes place when the vibrations caused by the pivoting of the final image carrier to the transfer belt have subsided.
- the charge images for the individual colors of the color image are produced successively on the photoconductor belt and developed with color toner to individual color toner images, the individual color toner images are transferred to the transfer belt and collected there on top of each other to the total color toner image, such that the transfer ribbon after taking over each Farbtonerstoryes is moved one revolution further.
- this is pivoted to the transfer belt, otherwise this is pivoted from the transfer belt.
- the generation of the charge images on the photoconductor belt or the transfer of the color toner images from the photoconductor belt to the transfer belt is such that these operations are not carried out during the arrival or the Abschwenkvorganges the Endbild yorks to or from the transfer belt.
- the generation of the charge images for the next full color toner image on the photoconductor belt can only be effected in a first solution when the final image carrier has been swung in and out of the transfer belt after the transfer of the preceding overall color toner image.
- the transfer of the color toner total image is performed only when the color toner total image collected on the transfer belt has been moved to the transfer station in a second or nth (n integer) cycle to be transferred. Then, the transfer of the color toner images of the next full color toner image onto the transfer belt may be started after the transfer of the preceding color toner total image has been completed, or the start of the generation of the charge images for the next color toner total image after the transfer of the preceding total color toner image has been completed.
- Fig. 4 shows the temporal position of the printed image with compensation of the disturbance by an additional transfer belt rotation and transfer of the color toner image of the next full color toner image onto the transfer belt after pivoting of the final image carrier to the transfer belt;
- Fig. 5 shows the temporal position of the printed image with compensation of the disturbance by an additional transfer belt rotation and transfer of the color toner image of the next color toner total image onto the transfer belt after swiveling or swiveling the final image carrier to or from the transfer belt;
- 6 shows the temporal position of the printed image with compensation of the disturbance by an additional transfer belt reversal by generating the charge images for the next full color toner image after pivoting the final image carrier and thus transferring the color toner images of the next full color toner image to the transfer belt after swiveling and swiveling the final image carrier to the or from the transfer belt.
- FIGS. 3 to 6 the lines Z corresponding to FIG. 2 are designated.
- the sequence of the methods over time t is plotted in msec.
- the influence of the disturbances on the photoconductor belt OPC is avoided by donning or depositing the final image carrier AT to the transfer belt TFB by inserting longer periods between the ink collecting cycles.
- the transfer of the full color toner image B to the final image carrier AT is carried out before the next Farbsammey cycle is started on the photoconductor belt OPC.
- no interference is caused at the transfer station Ul on.
- the dashed lines Ll, L2 have been drawn to illustrate these solutions.
- FIG. 4 shows a solution in which the transfer belt TFB, after collecting the colors of a full color toner image, is further moved one full revolution before the final image carrier AT is pivoted to the transfer belt TFB. This ensures that when pivoting the transfer Bandes TFB to the final image carrier AT no disturbance at the transfer station Ul is caused.
- Fig. 6 shows a solution in which the generation of the charge images on the photoconductor belt OPC for the next total color toner image and the collection of color toner images on the transfer belt TFB only after the pivoting of the final image carrier AT from the transfer belt TFB after the transfer of the preceding color toner total image B.
- the collection of the color toner images of the next total color toner image only takes place during the second circulation of the transfer ribbon TFB after the transfer of the preceding color toner total image and the transfer ribbon TFB is moved after collecting the color toner images of the previous color toner overall image by a full revolution before the final image carrier AT to the transfer belt TFB is swung.
- the Farbsammei cycle thus consists of four rounds of the transfer ribbon TFB.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Color Electrophotography (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006025400A DE102006025400B3 (de) | 2006-05-31 | 2006-05-31 | Verfahren zum Drucken von Bildern auf einen Endbildträger nach dem elektrografischen Prinzip |
| PCT/EP2007/053242 WO2007137898A1 (de) | 2006-05-31 | 2007-04-03 | Verfahren zur vermeidung des einflusses von schwingungsübertragung beim drucken von bildern auf einen endbildträger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2030087A1 true EP2030087A1 (de) | 2009-03-04 |
| EP2030087B1 EP2030087B1 (de) | 2011-06-15 |
Family
ID=38266706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07727713A Not-in-force EP2030087B1 (de) | 2006-05-31 | 2007-04-03 | Verfahren zum Drucken von Farbbildern auf einen Endbildträger nach dem elektrografischen Prinzip |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8204393B2 (de) |
| EP (1) | EP2030087B1 (de) |
| DE (1) | DE102006025400B3 (de) |
| WO (1) | WO2007137898A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6299303B2 (ja) * | 2014-03-18 | 2018-03-28 | 株式会社リコー | 画像形成装置の制御装置、画像形成装置の制御プログラム、画像形成装置の制御方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0965070B1 (de) | 1997-03-03 | 2000-10-11 | Océ Printing Systems GmbH | Druck- und kopiergerät zum performance-angepassten, monochromen und/oder farbigen, ein- oder beidseitigen bedrucken eines aufzeichnungsträgers |
| JP2001312154A (ja) | 2000-05-01 | 2001-11-09 | Canon Inc | 画像形成装置 |
| JP2002123052A (ja) | 2000-10-12 | 2002-04-26 | Konica Corp | 画像形成装置 |
| DE10345149A1 (de) * | 2003-09-29 | 2005-04-28 | Oce Printing Systems Gmbh | Verfahren und Vorrichtung zum Steuern der Umlaufgeschwindigkeit eines endlosen Bandes sowie Anordnung zum Erzeugen einer Bremskraft auf ein endloses Band |
| JP4415632B2 (ja) * | 2003-10-03 | 2010-02-17 | セイコーエプソン株式会社 | 画像形成装置および画像形成方法 |
-
2006
- 2006-05-31 DE DE102006025400A patent/DE102006025400B3/de not_active Expired - Fee Related
-
2007
- 2007-04-03 EP EP07727713A patent/EP2030087B1/de not_active Not-in-force
- 2007-04-03 US US12/299,857 patent/US8204393B2/en not_active Expired - Fee Related
- 2007-04-03 WO PCT/EP2007/053242 patent/WO2007137898A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007137898A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2030087B1 (de) | 2011-06-15 |
| DE102006025400B3 (de) | 2007-12-27 |
| WO2007137898A1 (de) | 2007-12-06 |
| US20090310988A1 (en) | 2009-12-17 |
| US8204393B2 (en) | 2012-06-19 |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WINTER, HANS Inventor name: FREUDENBERG, FRANK Inventor name: SCHERDEL, STEFAN |
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