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EP0281138A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Color image forming apparatus

Assignee: Ricoh Co Ltd
•
Filing: 1988-03-03
•
Granted: —
•
Expires: 2008-03-03
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Abstract

Abstract A color image forming apparatus sequentially transferring the resulting toner images to a paper sheet which is held on the transfer means which is rotated in contact with the photoconductive means in a predetermined transfer region, separating the paper sheet from the transfer means after the transfer by separator means which is located near the transfer means, and transporting the paper sheet separated from the transfer means to fixing means to complete a color copy. The separator means is located such that the distance between the transfer region and the separator means is shorter than a dimension of a paper sheet of the smallest size usable with the apparatus as measured in an intended direction of paper transfer. The distance between the separator means and the fixing means is longer than a dimension of a paper sheet of the largest size usable with the apparatus as measured in the intended direction of paper sheet.

Inventors

  • 👤 Nobuo Kasahara

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 10:52
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/165; G03G15/1655; G03G15/01; G03G15/0105; G03G15/0131

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 132 words
An image forming apparatus comprising: photoconductive means for forming an electrostatic latent image thereon; transfer means for transferring in a predetermined transfer region a visible image which has been produced by developing said latent image to a paper sheet which is held on said transfer means; separator means arranged along periphery of said transfer means for separating from said transfer means said paper sheet to which said visible image has been transferred; and drive means for independently driving said photoconductive means and said transfer means; said separator means being spaced apart from said transfer region along the periphery of said transfer means by a distance which is shorter than a dimension of a paper sheet having the smallest size usable with said apparatus as measured in an intended direction of paper transport.
Claim 2
Dependent Claim 132 words
An image forming apparatus comprising: photoconductive means for forming an electrostatic latent image thereon; transfer means for transferring in a predetermined transfer region a visible image which has been produced by developing said latent image to a paper sheet which is held on said transfer means; separator means arranged along periphery of said transfer means for separating from said transfer means said paper sheet to which said visible image has been transferred; and drive means for independently driving said photoconductive means and said transfer means; said separator means being spaced apart from said transfer region along the periphery of said transfer means by a distance which is shorter than a dimension of a paper sheet having the smallest size usable with said apparatus as measured in an intended direction of paper transport.
Claim 3
Dependent Claim 30 words
An image forming apparatus as claimed in claim 1, further comprising fixing means for fixing said visible image on said paper sheet which has been separated by said separator means.
Claim 4
Dependent Claim 50 words
An image forming apparatus as claimed in claim 2, wherein said fixing means is spaced apart from said separator means by a distance which is longer than a dimension of a paper sheet having the largest size usable with said apparatus as measured in said intended direction of paper transport.
Claim 5
Dependent Claim 22 words
An image forming apparatus as claimed in claim 1, wherein each of said photoconductive means and said transfer means comprises a drum.
Claim 6
Dependent Claim 22 words
An image forming apparatus as claimed in claim 1, wherein each of said photoconductive means and said transfer means comprises a belt.
Claim 7
Dependent Claim 29 words
An image forming apparatus as claimed in claim 1, wherein said drive means comprises a motor for driving said photoconductive means and a motor for driving said transfer means.
Claim 8
Dependent Claim 19 words
An image forming apparatus as claimed in claim 1, wherein said separator means comprises a plurality of separator pawls.
Claim 9
Dependent Claim 19 words
An image forming apparatus as claimed in claim 2, wherein said fixing means comprises a pair of fixing rollers.

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