Photocopying – Contact printing – Light boxes
Patent
1988-11-17
1989-07-11
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355309, G03G 1516
Patent
active
048476528
ABSTRACT:
An image transfer device has a screening plate attached to and protruding from a paper guide so as to partially block the corona ion current from its transfer charger such that only the forward portion of an incoming transfer paper sheet already in contact with the surface of a photosensitive drum is exposed to the current. An elastic guide plate separated from the drum surface by only about 1 mm serves to allow transfer paper sheet of different stiffness to come into contact with the drum surfaces at a predetermined position.
REFERENCES:
patent: 3850519 (1974-11-01), Weikel, Jr.
patent: 4174170 (1979-11-01), Yamamoto et al.
patent: 4544262 (1985-10-01), Kanemitsu et al.
Hirai Masashi
Kinashi Hiroshi
Masuda Zitsuo
Tsujimoto Yoshiharu
Braun Fred L.
Pendegrass J.
Sharp Kabushiki Kaisha
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