Image forming unit having positioner for withstanding...

Details Image forming unit having positioner for withstanding... Image forming unit having positioner for withstanding...

2006-08-01

2006-08-01

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Transfer

Reexamination Certificate

active

07085525

ABSTRACT:
An image forming unit having image bearing body, on which a latent image is formed, and an intermediate transfer belt, onto which a toner image obtained by developing the latent image formed on the image bearing body is transferred. A primary transfer member transfers the toner image onto the intermediate transfer belt, and a plurality of rolls, across which the intermediate transfer belt is stretched, apply tension to the intermediate transfer belt. A secondary transfer backup roll, which is one of the plurality of rolls, backs up the secondary transfer by a secondary transfer roll. A pair of side frames pivotally support the primary transfer member and the plurality of rolls. A positioner, with which a contact member rotatably fitted at both ends of a shaft of the secondary transfer roll is brought into contact, is disposed at each side frame in the vicinity of the secondary transfer backup roll.

REFERENCES:
patent: 5983062 (1999-11-01), Sameshima
patent: 11030896 (1999-02-01), None
patent: 2003-195729 (2003-07-01), None

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