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WO2004067277A1 - Mecanisme de transfert d'image - Google Patents

Mecanisme de transfert d'image Download PDF

Info

Publication number
WO2004067277A1
WO2004067277A1 PCT/IL2003/000083 IL0300083W WO2004067277A1 WO 2004067277 A1 WO2004067277 A1 WO 2004067277A1 IL 0300083 W IL0300083 W IL 0300083W WO 2004067277 A1 WO2004067277 A1 WO 2004067277A1
Authority
WO
WIPO (PCT)
Prior art keywords
impression
media
printing media
printing
paper
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.)
Ceased
Application number
PCT/IL2003/000083
Other languages
English (en)
Inventor
Alex Feygelman
Ofer Fredi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Priority to EP03815570A priority Critical patent/EP1590179B1/fr
Priority to PCT/IL2003/000083 priority patent/WO2004067277A1/fr
Priority to JP2004567487A priority patent/JP2006513883A/ja
Priority to DE60332051T priority patent/DE60332051D1/de
Priority to AU2003209618A priority patent/AU2003209618A1/en
Publication of WO2004067277A1 publication Critical patent/WO2004067277A1/fr
Anticipated expiration legal-status Critical
Priority to US12/582,331 priority patent/US8397635B2/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/02—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to impression cylinders

Definitions

  • the field of the invention is printers and copiers, and more particularly image transfer mechanisms including an impression surface on which a printing medium is mounted.
  • Some existing liquid toner systems utilize an intermediate transfer member to transfer a liquid toner image from a photosensitive member on which the image is developed to a final substrate, h order to reduce problems that may be caused when printing media is misfed, an impression media (generally of paper) is placed between the printing media and an impression roller which holds the printing media during transfer of the liquid toner image thereto from the intennediate transfer member.
  • an impression media generally of paper
  • the present application is directed to novel impression media and mechanisms utilizing it.
  • An aspect of some embodiments of the invention concerns an impression paper clamp on the impression member that is used to hold the impression paper to the surface of the impression member.
  • the clamp is located beyond the leading edge of the printing media, and in this case using a clamp rather than glue avoids the problem of the glue band affecting the printed image.
  • the impression paper is made of a heavy paper stock, which prevents it from wrinkling, and/or it has a smooth finish, to avoid any small bumps or texture which could affect the printing quality of the printing media resting on it.
  • the clamp can be released, in order to change the impression paper, avoiding the difficulty of removing the impression paper when it is permanently glued to the impression member. However, the clamp is normally kept closed, since the impression paper is changed only occasionally.
  • the grippers which are attached to the inside of the impression member, can not be opened and closed to hold down the leading edge of printing media, which sits on the outside of the impression paper.
  • the impression paper is provided with apertures, over the locations of the grippers.
  • the grippers can open through the apertures in the impression paper and close over the leading edge of the printing media.
  • a mechanism for transferring an image from a first surface to printing media comprising: an impression member having an impression surface; printing media grippers associated with said impression surface adapted for holding an edge of the printing media on the impression member during said transfer and then controllably releasing the printing media after transfer; and impression media held on the impression surface such that the impression media extends past the edge of the printing media held by the printing media grippers.
  • the impression surface is the surface of an impression roller and wherein the impression surface and the first surface move together in a same direction at a region of proximity or contact between them.
  • the impression media is held on the impression roller by at least one holding mechanism.
  • the holding mechanism comprises one or more of at least one clamp, at least one impression media gripper and an adhesive.
  • the holding mechanism is generally upstream of the printing media grippers.
  • a mechanism for transferring an image from a first surface to printing media comprising: an impression member having an impression surface; printing media grippers associated with said impression surface adapted for holding an edge of the printing media on the impression member during said transfer and then controllably releasing the printing media after transfer; and impression media held on the impression surface such that the impression media is held by a releasable, non-adhesive holding mechanism.
  • the holding mechanism comprises at least one of at least one impression media gripper and at least one clamp.
  • the holding mechanism is generally upstream of the printing media grippers.
  • an end of the impression media is held on the impression surface by a clamping mechanism.
  • an end of the impression media is held on the impression surface by a set of grippers.
  • an end of the impression media is held on the impression surface by an adhesive.
  • the impression media is formed with apertures corresponding to the grippers that grip the printing media, such that the grippers can open and close through the apertures.
  • the impression media is formed of paper.
  • the mechanism also includes a removal mechanism for removing the printing media after release thereof by the grippers.
  • the removal mechanism comprises vacuum elements that remove the printing media from the impression media.
  • the impression media is formed with at least one aperture situated beneath a position at which the vacuum elements come into proximity or contact with the printing media on the impression media, to at least reduce a partial vacuum between the impression media and the printing media thereat.
  • impression media for use in a mechanism for transferring an image from a first surface to printing media, the mechanism having at least one printing media gripper adapted for holding the printing media against the impression media in a predetermined relative position during said transfer, wherein the impression media comprises at least one aperture, located so that said at least one aperture is substantially aligned with said at least one printing media gripper when the impression media and printing media are in said predetermined relative position, and said at least one aperture allows the at least one printing media gripper to grip the printing media thorough said at least one aperture in the impression media.
  • a method of producing an impression media for a mechanism for transferring an image from a first surface to printing media held on an impression member the mechanism having at least one printing media gripper adapted for holding the printing media against an impression media on said impression member, in a predetermined relative position during said transfer, comprising: forming an impression media having a size suitable for mounting on said impression member; and forming at least one aperture in said impression media, located so that said at least one aperture is substantially aligned with said at least one printing media gripper when the impression media and printing media are in said predetermined relative position, and said at least one aperture allows the at least one printing media gripper to grip the printing media thorough said at least one aperture in the impression media.
  • FIG. 1 is a schematic cross-sectional view of the photo-sensitive, intermediate, and impression members as they are arranged in a printer or copier, according to the prior art
  • Fig. 2 is a perspective view of an impression member, according to the prior art
  • Fig. 3 A is a close-up perspective view of part of an impression member, according to the prior art, showing printing paper clamps in a raised position;
  • Fig. 3B is a similar view to Fig. 3A, but with the printing paper clamps in a lowered position;
  • Fig. 4 is a perspective view of an impression paper clamp, seen from below, according to an exemplary embodiment of the invention.
  • Fig. 5A is a perspective view of part of an impression member with the impression paper clamp installed, but without impression paper installed, according to the same embodiment of the invention, showing the printing paper clamps in a raised position;
  • Fig. 5B is the same view as Fig. 5A, showing the printing paper clamps in a lowered position;
  • Fig. 6 is the same view as Fig. 5A, but also showing one end of the impression paper held by the impression paper clamp;
  • Fig. 7 is the same view as Fig. 6, but also showing printing paper held by the printing paper clamp
  • Fig. 8A is a perspective view of the impression paper clamp seen from the bottom, showing one end of the impression paper properly aligned with the impression paper clamp, according to the same embodiment of the invention, but not inserted into the impression paper clamp;
  • Fig. 8B is the same view as Fig. 8 A, showing the end of the impression paper inserted into the impression paper clamp;
  • Fig. 9 is a schematic cross-sectional view of the impression paper, impression member, and suction cup, according to an exemplary embodiment of the invention.
  • Fig. 10 shows the layout of part of the impression paper, according to an exemplary embodiment of the invention.
  • FIG. 1 An exemplary configuration of existing laser printers is illustrated in a very simplified form in Fig. 1.
  • a charged photosensitive member 2 is exposed to a light image from a scanning laser 4 controlled by a computer.
  • a similar configuration is used in some copiers, with the scanning laser replaced by a lens focused on a document that is being copied.
  • the areas of the photo-sensitive surface that are exposed to light acquire a different voltage than the parts that are not exposed to light, due to selective discharge of those areas. This voltage difference is used to selectively attract toner particles to parts of the surface, using a developer 3, producing a toner image that corresponds to the exposure.
  • the toner image is then transferred to an intermediate transfer member 6, and from there to a printing medium 8 on an impression member 10 in the exemplary form of a roller.
  • Fig. 2 shows the impression member (removed from the printer), seen from one side
  • Figs. 3A and 3B are close-up views of the impression member showing the grippers more clearly.
  • the opening along the side of the impression member normally has a cover over it, with small openings for the grippers.
  • This cover has been removed in Figs. 2, 3A, and 3B, to show a rod 304 (or rods, optionally connected by a coupler 202) which controls the raising and lowering of the grippers.
  • Fig. 3 A grippers 12 are in a raised position
  • Fig. 3B grippers 12 are in a lowered position for holding the printing media.
  • Grippers 12 are optionally spring-loaded, and springs 302 are visible in Fig. 3A.
  • grippers 12 are raised, and the printing media is removed from the impression member by a lifting mechanism, for example including suction elements such as suction cups 14 (shown in Fig. 1), and conveyed to an output tray.
  • Suction elements 14 may be active, i.e., they are connected to a vacuum source, or they are passive, i.e., a vacuum is formed when they are pressed against printing media 8. Generally, active suction elements are preferred.
  • toner will be transferred from the intermediate transfer member directly to the surface of the impression member. Because the impression member, which has a metal surface, does not absorb toner as well as the printing media, some toner will remain on the intermediate transfer member. If the intermediate transfer member is not immediately cleaned off, then the toner may dry if it is liquid, or possibly melt if it is solid, which may cause permanent damage to the intermediate transfer member. To prevent this from happening, a piece of media, described herein as impression media or impression paper (since it is generally of paper) 9, is sometimes permanently glued to the surface of the impression member at a point designated as 11. The forward edge of the impression media is positioned underneath the printing media, i.e., the forward edge does not extend past the edge 13 of the printing media that is held by the grippers.
  • the impression paper surface will absorb all the toner from the intermediate transfer member, and the intermediate transfer member will not be damaged by dried toner.
  • the impression paper can create its own problems.
  • the glue has to be strong.
  • the impression paper must be removable. This mandates a weaker bond for the glue.
  • the area available for gluing is limited, in order not to interfere with the printable area of the print media and may sometimes intrude on this area slightly. Additionally with time, the impression paper may slide along the impression roller in a direction opposite the direction of motion of the impression roller surface.
  • Fig. 4 shows an impression paper clamp 400, as seen from below, according to an exemplary embodiment of the invention.
  • above means in a direction away from the impression member when the impression paper clamp is installed
  • lower means toward the interior of the impression member when the impression paper clamp is installed
  • Fig. 4 Many of the features of the impression paper clamp shown in Fig. 4 are designed to allow the impression paper clamp to be retrofitted to an existing impression member used in printers manufactured by Hewlett-Packard. Some of these features optionally look quite different, or are absent entirely, in embodiments of the invention designed for use on different impression members, without departing from the teachings of the invention.
  • Impression paper clamp 400 comprises an upper portion 402, in the form of a straight bar, and a lower portion.
  • upper portion 402 clamps the impression paper directly against an integral part of the impression member, instead of against the lower portion, and in that case there is no need for a lower portion.
  • the lower portion optionally includes a back section 406, which fits into a slot in the impression member, and a number of teeth 408, which press against upper portion 402 to hold the impression paper.
  • the spaces between the teeth optionally allow the grippers to open through corresponding apertures in the impression paper, as shown in Figs. 6 and 7, to hold the printing media.
  • the number of teeth and grippers is different for some embodiments of the invention than the number of teeth and grippers shown in the drawings, but generally there is still one space between the teeth for each gripper.
  • the middle tooth optionally has a clearance hole 410, for coupler 202.
  • back section 406 optionally has a clearance slot 412 for coupler 202.
  • Two captive nut and bolt assemblies 414 can be tightened, through openings 416 (not visible in Fig. 4 since they are on the hidden top surface of upper portion 402, but visible in Figs. 5A and 5B), to bring upper portion 402 tightly against the lower portion, to hold the impression paper in place.
  • the nuts and bolts need not be captive, but making them captive prevents them from being lost if they come loose, and prevents them from falling into the interior of the impression member and possibly causing damage or malfunction.
  • the upper and lower portions of impression paper clamp 400 are held against each other by another mechanism, such as a spring or clip, and in some embodiments there is no mechanism for tightening impression paper clamp 400.
  • Two attachment tabs 418, with holes in them, optionally allow impression paper clamp 400 to be bolted down when it is installed in the impression member.
  • Figs. 5 A and 5B show impression paper clamp 400 installed in impression member 10.
  • Fig. 5 A shows the grippers in a raised position
  • Fig. 5B shows the grippers in a lowered position.
  • Upper portion 402 one of the openings 416, one attachment tab 418, and four of the teeth 408 are visible, as well as printing paper clamps 12. Note that grippers 12 optionally fit into the spaces between teeth 408.
  • Fig. 6 shows impression paper 600 held at one end by impression paper clamp 400.
  • Trapezoidal apertures 602 in impression paper 600 optionally allow grippers 12 to go through impression paper 600, and to hold the printing media in place.
  • Apertures 602 need not be trapezoidal, but are trapezoidal in this embodiment of the invention to match the shape of grippers in this design of the impression member.
  • Circular hole 604, near the top margin of Fig. 6, optionally allows clearance for coupler 202 to move when the grippers are raised and lowered.
  • Hole 604 is optionally absent in some embodiments of the invention, for example if a mechanism other than coupler 202 is used to connect rods 304 or is no coupler is used or if coupler 202 does not need the clearance.
  • a sheet of printing media 8 is shown held in place by grippers 12, on top of impression paper 600.
  • Fig. 8A shows a bottom view of impression paper clamp 400, not installed in the impression member, with impression paper 600 adjacent to it. Impression paper 600 is shown aligned with impression paper clamp 400, as it would be before being inserted. Note that each of the holes 602 corresponds to one of the spaces between teeth 408.
  • Two slots 802 in impression paper 600 which are lined up with nut and bolt assemblies 414.
  • a different number of nut and bolt assemblies are used in the impression clamp, and optionally one slot 802 is formed in the impression paper, for each nut and bolt assembly.
  • impression paper 600 When impression paper 600 is inserted into impression paper clamp 400, the bolts in the two assemblies 414 each go through its associated slot 802.
  • impression paper 600 lacks slots 802, and is inserted into impression paper clamp 400 only far enough so that its leading edge touches the bolts.
  • slots 802 are replaced by bolt holes for the bolts to go through, and the bolts are disengaged from the nuts and raised above the impression paper until the impression paper is fully inserted, at which time the bolts are lowered through the bolt holes and engaged in the nuts.
  • impression paper 600 does not have slots 802, or bolt holes.
  • Fig. 8B shows impression paper 600 fully inserted into impression paper clamp 400, which is seen from below as in Fig. 8A. Note that trapezoidal apertures 602 are now aligned with the spaces between teeth 408, and circular hole 604 is aligned with hole 410 in the middle tooth. Slots 802 are no longer visible, as they are hidden by the lower portion of the impression paper clamp.
  • FIGs. 8 A and 8B show the paper brought adjacent to the impression paper clamp, and then inserted into the impression paper clamp, when the impression paper clamp is not mounted on the impression member, in actual operation, the impression paper is inserted into the impression paper clamp when the impression paper clamp is already mounted on the impression member.
  • the two views of the dismounted mechanism are used to better illustrate the method of mounting the impression paper.
  • Fig. 9 shows a schematic cross-sectional view of impression member 10, impression paper 600, printing media 8, and suction cup 14.
  • Gripper 12 is in a raised position, so that suction cup 14 can pull printing media 8 off impression member 10.
  • Impression paper 600 is held in place by impression paper clamp 400.
  • Dashed lines show trapezoidal hole 602 in impression paper 600.
  • Suction cup may pull the printing media from the impression roller at a distance, as shown or may come into contact with the printing media while it is still flat on the impression media.
  • Impression paper 600 is formed with apertures, such as narrow slits 900 or a pattern of small holes, beneath suction cup 14.
  • apertures such as narrow slits 900 or a pattern of small holes.
  • Slits 900 allow air from the space between impression paper 600 and impression member 10 to flow into the space between impression paper 600 and printing media 8, preventing a significant vacuum from forming, and allowing suction cup 14 to pull printing media 8 away from impression paper 600 and impression member 10 in a controlled, predictable manner.
  • impression paper 600 may not lie flat against impression member 10, so there may be a space filled with air between impression member 600 and impression member 10, which can flow through slits 900. h other embodiments of the invention, not all these conditions are met, however, even if only some of the conditions are met, there may still be enough air flowing through slits 900 so that suction cups 14 pull media 8 off impression member 10 in a controlled manner.
  • the size of the apertures must be increased, for example greater than 0.1 mm and preferably larger, up to a size which interferes with the printing quality, which may be some larger fraction of a mm.
  • the apertures are slits that are formed in pairs. Under these circumstances, the effect of lifting of the printing media is to lift the region between the slits. This allows air to enter the region between the printing media and the impression paper, releasing the vacuum.
  • the width of the slits is not a factor in the operational life of the impression paper and the slits are preferably made as thin as possible, for example 0.1 mm or less (e.g., 0.05 or 0.02 mm).
  • the invention is not limited to such thin slits, which may be difficult to manufacture.
  • the length of the slits should be at least as long as the diameter of the suction cups, to aid in the lifting of the portion between the slits. However, this is not absolutely necessary.
  • the one suction cup 14 shown in Fig. 9 optionally represents two or more suction cups arranged in a direction perpendicular to the plane of Fig. 9.
  • Slits 900 need not be used in conjunction with impression paper clamp 400, but optionally could be used in impression paper that is attached to the impression member in a different way, for example by gluing.
  • Fig. 10 shows an outline of one end of a piece of impression paper 600, the end that is held by the impression paper clamp, according to an embodiment of the invention that is being tested.
  • Six trapezoidal apertures 602, circular hole 604, two slots 802, and eight slits 900 are visible.
  • the width of slits 900 is exaggerated so that they are visible, hi fact, the slits are only 0.1 mm wide, in this embodiment of the invention.
  • the number, size and shape of any of these features may be different, and any of these features may not exist, in some embodiments of the invention, depending, among other factors, on the design of the impression member and the impression paper clamp.
  • Impression paper preferably has a number of desired characteristics.
  • the impression paper should be strong enough so that it can stand the sliding forces induced on it, considering that it contains a series of cut-outs.
  • the impression paper should be smooth and of uniform thickness. This avoids texturing of the images printed on the printing media.
  • it should absorb the ink from the intermediate transfer member, in case of a paper miss-feed.
  • the same impression roller may also be used for printing a second side of duplex, it should not offset ink from the first side, when an image is transferred to the second side from the (hot) intermediate transfer member.
  • the impression paper while it is desirable that the impression paper be stiff, it is also desirable that the paper conform to the curvature of the impression member.
  • impression paper need not be optimized for all or even any of these parameters. It has been found that Gardamatt Art paper (Garda Cartiere, Italy) provides a suitable impression paper, for various thicknesses from nominally 101 micrometers thickness (Gardamatt 115) to nominally 313 micrometers thickness (Gardamatt 300), although thicker paper (>200 micrometers) are sturdier.
  • the smoothness of this paper veries between 20 ⁇ 5 to 30 or 40 ⁇ 10 or 20 for the thinner papers. However, the smoothness is not critical, so long as there is no texturing of the image.
  • This paper is short fiber paper and is cut so that the stiffer direction is parallel to the axis of the impression roller. This allows the impression paper to conform to the impression roller.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Handling Of Cut Paper (AREA)

Abstract

L'invention concerne un mécanisme de transfert d'image d'une première surface à un support d'impression comprenant : un élément d'impression présentant une surface d'impression ; des dispositifs de préhension (12) de support d'impression associés à la surface d'impression, conçus pour tenir un bord du support d'impression (8) sur l'élément d'impression lors du transfert, puis à libérer, de manière commandable le support d'impression après transfert ; un support d'impression (600) tenu sur la surface d'impression, de sorte que le support d'impression s'étende et dépasse le bord du support d'impression tenu par les dispositifs de préhension (12) du support d'impression.
PCT/IL2003/000083 2003-02-02 2003-02-02 Mecanisme de transfert d'image Ceased WO2004067277A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP03815570A EP1590179B1 (fr) 2003-02-02 2003-02-02 Mecanisme de transfert d'image
PCT/IL2003/000083 WO2004067277A1 (fr) 2003-02-02 2003-02-02 Mecanisme de transfert d'image
JP2004567487A JP2006513883A (ja) 2003-02-02 2003-02-02 画像転写機構
DE60332051T DE60332051D1 (de) 2003-02-02 2003-02-02 Bildübertragungssystem
AU2003209618A AU2003209618A1 (en) 2003-02-02 2003-02-02 Image transfer mechanism
US12/582,331 US8397635B2 (en) 2003-02-02 2009-10-20 Image transfer mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2003/000083 WO2004067277A1 (fr) 2003-02-02 2003-02-02 Mecanisme de transfert d'image

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/190,378 Continuation US7628109B2 (en) 2003-02-02 2005-07-26 Image transfer mechanism

Publications (1)

Publication Number Publication Date
WO2004067277A1 true WO2004067277A1 (fr) 2004-08-12

Family

ID=32800555

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2003/000083 Ceased WO2004067277A1 (fr) 2003-02-02 2003-02-02 Mecanisme de transfert d'image

Country Status (5)

Country Link
EP (1) EP1590179B1 (fr)
JP (1) JP2006513883A (fr)
AU (1) AU2003209618A1 (fr)
DE (1) DE60332051D1 (fr)
WO (1) WO2004067277A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8331837B2 (en) 2010-06-29 2012-12-11 Seiko Epson Corporation Image-forming device with support member supporting transfer roller and delivery roller
US8594545B2 (en) 2010-05-19 2013-11-26 Seiko Epson Corporation Image-forming device and image-forming method
US8718521B2 (en) 2010-09-13 2014-05-06 Seiko Epson Corporation Image-forming apparatus and image forming method for regulating portion of tension roller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011145592A (ja) 2010-01-18 2011-07-28 Seiko Epson Corp 画像形成装置および画像形成方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796529A (en) * 1985-12-03 1989-01-10 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Sheet turning device for rotary presses of the in-line type
US5026045A (en) * 1988-03-16 1991-06-25 Heidelberger Druckmaschinen Ag Sheet-guiding drum assembly for sheet-fed rotary printing machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796529A (en) * 1985-12-03 1989-01-10 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Sheet turning device for rotary presses of the in-line type
US5026045A (en) * 1988-03-16 1991-06-25 Heidelberger Druckmaschinen Ag Sheet-guiding drum assembly for sheet-fed rotary printing machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8594545B2 (en) 2010-05-19 2013-11-26 Seiko Epson Corporation Image-forming device and image-forming method
US8331837B2 (en) 2010-06-29 2012-12-11 Seiko Epson Corporation Image-forming device with support member supporting transfer roller and delivery roller
US8718521B2 (en) 2010-09-13 2014-05-06 Seiko Epson Corporation Image-forming apparatus and image forming method for regulating portion of tension roller

Also Published As

Publication number Publication date
AU2003209618A1 (en) 2004-08-23
JP2006513883A (ja) 2006-04-27
EP1590179B1 (fr) 2010-04-07
EP1590179A1 (fr) 2005-11-02
DE60332051D1 (de) 2010-05-20

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