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US6078773: Image forming apparatus and intermediate transfer member

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Filing Information

Inventor(s) Minoru Shimojo · Akira Shimada · Hiroyuki Osada · Atsushi Tanaka · Tsunenori Ashibe ·
Assignee(s) Canon Kabushiki Kaisha ·
Attorney/Agent(s) Fitzpatrick, Cella, Harper & Scinto ·
Primary Examiner Robert Beatty ·
Application Number US9022897
Filing date 02/12/1998
Issue date 06/20/2000
Predicted expiration date 02/12/2018
U.S. Classifications 399/302  · 399/308  ·
International Classifications G03G 1501  ·
Kind CodeA
International Classifications 399297;302;308 ·
Foreign Priority JP9030083 - 02/14/1997 ·
18 Claims, No Drawings


Abstract

An image forming apparatus has a first image bearing member and an intermediate transfer member onto which a toner image formed on the first image bearing member is primarily transferred and through which the toner image thus transferred is secondarily transferred onto a second image bearing member. The intermediate transfer member has a surface layer on a base layer and the surface layer contains a polyurethane resin obtained by the reaction of an olefinpolyol with an isocyanate.

Independent Claims | See all claims (18)

  1. 1. An image forming apparatus comprising a first image bearing member and an intermediate transfer member onto which a toner image formed on the first image bearing member is primarily transferred and through which the toner image thus transferred is secondarily transferred onto a second image bearing member, wherein;said intermediate transfer member has a surface layer on a base layer, and the surface layer contains a polyurethane resin obtained by reaction of an olefinpolyol with an isocyanate.
  2. 10. An intermediate transfer member onto which a toner image formed on a first image bearing member is primarily transferred and through which the toner image thus transferred is secondarily transferred onto a second image bearing member;said intermediate transfer member comprising a surface layer provided on a base layer; said surface layer containing a polyurethane resin obtained by reaction of an olefinpolyol with an isocyanate.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US5571457 Eastman Kodak Company Vreeland et al. Nov 1996
US5600422 Mita Industrial Co., Ltd. Fukami et al. Feb 1997
US5659854 Bridgestone Corporation Masuda et al. Aug 1997
US5669052 Canon Kabushiki Kaisha Kusaba et al. Sep 1997
US5697604 Canon Kabushiki Kaisha Tanaka Dec 1997
US5715510 Canon Kabushiki Kaisha Kusaba et al. Feb 1998
US5745831 Canon Kabushiki Kaisha Nakazawa et al. Apr 1998
US5774768 Mita Industrial Co., Ltd. Hazama et al. Jun 1998
US5802442 Canon Kasei Kabushiki Kaisha Konno et al. Sep 1998

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
JP63301960CANON INCDec 1988
JP6222686Aug 1994
JP850419Feb 1996
JP8095372Apr 1996
JP8146705Jun 1996
JP8202064Aug 1996

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US6078773 Canon Kabushiki Kaisha Minoru Shimojo et al. Jun 2000
EP0859292 CANON KABUSHIKI KAISHA Minoru Shimojo et al. Sep 2004
DE69826346 CANON KK SHIMOJO MINORU et al. Oct 2004