Electrographic printer with small diameter drum and charged tran

Details Electrographic printer with small diameter drum and charged tran Electrographic printer with small diameter drum and charged tran

1987-07-28

1989-06-20

Prescott, A. C.

Photocopying

Contact printing

Light boxes

355309, 355315, G03G 1500

Patent

active

048413348

ABSTRACT:
An electrographic printing apparatus includes a housing, a source of paper, an output receptacle for receiving the paper after it is imprinted, a photoconductive member for storing a latent electrostatic image, a developer unit for developing the latent electrostatic image, and a charged transfer belt disposed opposite the photoconductive member. The charged transfer belt serves to transfer the developed image from the photoconductive member to the paper, and to transport the paper after it is imprinted to a fusing station. The paper path is located near the top of the housing for easy access in case of a paper jam. The paper path includes a sharp separation angle from the photoconductive member in order to decrease the dwell time of the paper against the photoconductive member. Desirably, the photoconductive member comprises a photosensitive drum of relatively small diameter, for example, on the order of 30-80 mm in diameter.

REFERENCES:
patent: 3907421 (1975-09-01), Jordan et al.
patent: 4264186 (1981-04-01), Fujiwara et al.
patent: 4407580 (1983-10-01), Hashimoto et al.
patent: 4412732 (1983-11-01), Ogata et al.
patent: 4417800 (1983-11-01), Hirose et al.
patent: 4419005 (1983-12-01), Kuehnle
patent: 4461563 (1984-07-01), Favata
patent: 4478924 (1984-10-01), Moraw et al.
patent: 4588279 (1986-05-01), Fukuchi et al.
Alfred Poor, "The Ricoh Engine: Petite and Powerful", PC Magazine, Apr. 28, 1987, p. 125.

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