Image forming apparatus having improved home position...

Details Image forming apparatus having improved home position... Image forming apparatus having improved home position...

2006-07-20

2010-02-16

Gray, David M (Department: 2852)

Electrophotography

Image formation

Transfer

Reexamination Certificate

active

07664443

ABSTRACT:
An image forming apparatus includes a transfer belt having a light penetrating portion formed at one side of an edge portion of the transfer belt, a protection tape adhered to both sides of the edge portion to cover the light penetrating portion, and a guide member attached to one side of the protection tape. A plurality of rotation rollers drive the transfer belt in a caterpillar-type manner and include a guide groove formed at both ends of each rotation roller such that the guide member is inserted therein. A sensing body receives one end of the transfer belt to be positioned therein. A first sensing element and a second sensing element are disposed at both sides of the transfer belt such that a second distance from a transfer surface of the transfer belt to the second sensing element is longer than a first distance from the other surface of the transfer belt to the first sensing element.

REFERENCES:
patent: 2001/0007617 (2001-07-01), Nakamura
patent: 08-314235 (1996-11-01), None
patent: 09-160316 (1997-06-01), None
patent: 2002-296971 (2002-10-01), None
patent: 1020040068442 (2004-07-01), None

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