Cleaning device for image forming apparatus and process...

Details Cleaning device for image forming apparatus and process... Cleaning device for image forming apparatus and process...

2011-07-05

2011-07-05

Porta, David P (Department: 2884)

Electrophotography

Cleaning of imaging surface

Blade

C399S123000, C015S256510

Reexamination Certificate

active

07974565

ABSTRACT:
The present invention relates to a cleaning device that allows the obtaining of a high level of removal performance while reducing wear between a plate-shaped elastic member and a cleaning-targeted surface moving member, while also being able to stably maintain the contact status between the surface moving member and the plate-shaped elastic member, and an image forming apparatus and a process cartridge provided therewith. A plate holder retains a blade via warping restriction means, a bearing and a support shaft engage at an engaging portion with a degree of freedom due to the presence of a gap therebetween, the plate holder is able to be displaced relative to a frame of the device body, the support shaft is arranged on the device body in the direction of surface movement of a photosensitive element downstream a normal line of the surface of the photosensitive element at a portion contacted by the blade, and a foreign object infiltration prevention member is provided on the bearing or the support shaft of the engaging portion to prevent entry of foreign objects into the gap.

REFERENCES:
patent: 4768062 (1988-08-01), Tanzawa et al.
patent: 5946530 (1999-08-01), Tsuji et al.
patent: 2007/0098435 (2007-05-01), Kitagawa et al.
patent: 2008/0063448 (2008-03-01), Hozumi et al.
patent: 60-198574 (1985-10-01), None
patent: 2006-178164 (2006-07-01), None
patent: 2008-96965 (2008-04-01), None
U.S. Appl. No. 12/558,934, filed Sep. 14, 2009, Watanabe, et al.

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