Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1982-07-15
1985-01-15
Tarcza, Thomas H.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
G01D 1514
Patent
active
044941307
ABSTRACT:
A laser printer including a photosensitive belt driven for travel while having its position of travel regulated by one drive roller and at least one follower roller and serving as regulating means, a charger, a scanning and exposing device for directing a laser beam modulated in accordance with image signals on the surface of said photosensitive belt, and a developing device for developing an electrostatic latent image formed of the surface of the photosensitive member by scanning and exposing. The laser beam is incident on the surface of the photosensitive belt in a portion thereof in contact with the regulating means or in the vicinity thereof, to thereby avoid a reduction in the quality of the formed image due to a waving phenomenon of the photosensitive member. To prevent formation of a ghost image by the scattered light on the surface of the photosensitive member, the angle relative to the normal to the surface of the photosensitive belt of the laser beam is not made zero. The charger is located in juxtaposed relation to the tension side of the photosensitive member of the endless belt type, and the developing device is located in juxtaposed relation to a portion in contact with the drive roller, to avoid variations in the gap between the photosensitive member and the developing member and the charger.
REFERENCES:
patent: 3132206 (1964-05-01), King
patent: 4044385 (1977-08-01), Nishimura et al.
patent: 4180822 (1979-12-01), Hudson et al.
Weigl, Low Voltage Electrographic Recording, Xerox Disclosure Journal, May/Jun. 1980, pp. 285-286.
Kaneko Yutaka
Takashi Yokata
Ricoh & Company, Ltd.
Shoup Guy W.
Tarcza Thomas H.
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