Photocopying – Contact printing – Light boxes
Patent
1988-12-13
1991-02-12
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
152565, G03G 2100
Patent
active
049928341
ABSTRACT:
An image forming apparatus includes an image carrier rotatably disposed in a main body and having an image carrier surface, a transfer unit for transferring a toner image formed on the image carrier surface to a recording member, and a cleaning blade located in a downstream side of the transfer unit in a rotational direction of the image carrier and scraping a residual toner left on the image carrier surface. The transfer unit is located on a portion of the image carrier such that an imaginary normal extending outward from the image carrier surface is directed upward with respect to a horizontal direction and the transfer unit transfers the toner image to a lower surface of the recording member. The cleaning blade is brought into contact with a downward moving portion of the image carrier which has passed through the transfer unit, at a contact angle of not less than 90.degree. relative to the downstream portion of the carrier in a "with" contact state, and the residual toner scraped by the cleaning blade is moved downard along an upper surface of the cleaning blade.
REFERENCES:
patent: Re30924 (1982-05-01), Katayama et al.
patent: 3936183 (1976-02-01), Sadamatsu
patent: 4757471 (1988-07-01), Fukae et al.
patent: 4758862 (1988-07-01), Fukae et al.
Nishio Tadashi
Noda Kazuo
Yamada Takahisa
Yamamoto Akira
Olympus Optical Co,. Ltd.
Pendegrass Joan H.
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