Image forming apparatus having a multi-layered intermediate...

Details Image forming apparatus having a multi-layered intermediate... Image forming apparatus having a multi-layered intermediate...

2007-01-09

2007-01-09

Brase, Sandra L. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S302000

Reexamination Certificate

active

11260447

ABSTRACT:
An image forming apparatus having a belt supporting frame for supporting an intermediate transfer belt is provided. The intermediate transfer belt is a multi-layered structure composed of at least an elastic layer on a substrate layer. When a percentage difference of a stretched length of an outer circumference of the intermediate transfer belt to an inner circumference thereof at a position of contact to the driving roller is A % and a percent difference of a length of stretched side of the belt driven and stretched by the driving roller to a length of non-stretched opposite side of the belt is B %, the intermediate transfer belt is configured so that ranges of A and A+B fall simultaneously into inequalities of 1<A<6 and 3<A+B<10.

REFERENCES:
patent: 5978638 (1999-11-01), Tanaka et al.
patent: 5988635 (1999-11-01), Ohshima
patent: 5995793 (1999-11-01), Enomoto et al.
patent: 6094556 (2000-07-01), Tanaka et al.
patent: 8087151 (1996-04-01), None
patent: 8123294 (1996-05-01), None
patent: 10240020 (1998-09-01), None
patent: 10260593 (1998-09-01), None

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