Photocopying – Contact printing – Light boxes
Patent
1988-08-12
1990-11-20
Moses, R. L.
Photocopying
Contact printing
Light boxes
355305, 355297, 118652, 430125, G03G 2100
Patent
active
049722336
ABSTRACT:
A image forming apparatus having cleaning means for cleaning a movable image bearing member, particularly, an amorphous silicon photosensitive material by scraping the image bearing member with both a blade which is brought into contact with the image bearing member and magnet spherical particles held on a magnet roller provided upstream of the blade in the moving direction of the image bearing member. The magnetic spherical particles are made of ferrite having an average particle diameter within a range from 30 to 200 .mu.m, preferably, 60 to 100 .mu.m. As a result abrasion of the photosensitive layer is minimized and foreign matter deposited on the photo sensitive layer is removed to prevent an image flow, so that both a good cleaning function and an image of good picture quality are obtained.
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patent: 4154522 (1979-05-01), Ikesue
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patent: 4666813 (1987-05-01), Sakashita
patent: 4699865 (1987-10-01), Mitsuhashi
Ehara Toshiyuki
Ueda Shigenori
Yamazaki Koji
Canon Kabushiki Kaisha
Moses R. L.
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