Photocopying – Contact printing – Light boxes
Patent
1990-11-09
1992-05-05
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355299, 355307, G03G 2100
Patent
active
051112515
ABSTRACT:
A cleaning apparatus for cleaning a photoconductive belt of a seamless type which is used within a recording system for transferring a latent image of information to be recorded to a recording paper, the photoconductive belt being rotated along a rotation path by a plurality of supporting rollers. The cleaning apparatus includes a blade part provided at a first position along the rotation path of the photoconductive belt for removing a residual toner from the photoconductive belt, a brush part provided at a second position upstream of the first position along the rotation path of the photoconductive belt, the brush part having a pile material coming in contact with a surface of the photoconductive belt, and a scraper part for cleaning the brush part by removing a remaining toner from the pile material of the brush part. It is thus possible to keep the photoconductive belt clean for a long duration of the use in the recording system, without causing a cleaning problem. In one embodiment, the blade part includes a plurality of blades which are rotatably mounted on a rotary member and each blade is sequentially moved into contact with the photoconductive belt after a predetermined number of revolutions of the belt is reached.
REFERENCES:
patent: 3847480 (1974-11-01), Fisher
patent: 3947108 (1976-03-01), Thett et al.
patent: 4089683 (1978-05-01), Knieser
patent: 4140389 (1979-02-01), Franke et al.
patent: 4339195 (1982-07-01), Gabelman
patent: 4364660 (1982-12-01), Oda
Uno Mugijirou
Yuasa Kazuhiro
Braun Fred L.
Ricoh & Company, Ltd.
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