Photocopying – Contact printing – Light boxes
Patent
1989-03-30
1990-06-12
Moses, R. L.
Photocopying
Contact printing
Light boxes
355272, 355309, 355212, G03G 1501
Patent
active
049337270
ABSTRACT:
A color recording apparatus has an electric charge carrier which is circulatingly movable, an electrostatic latent image forming unit for forming a latent image which corresponds to an original image on the carrier, a development unit for developing the latent image; a transfer unit for transferring the developed image formed on the carrier to a record paper in a transfer process, a conveyor for conveying the record paper forward and backward with respect to the transfer unit, and a control unit which repeats control operations for controlling the latent image forming unit to form a latent image on the carrier, for controlling the development unit to develop the latent image, for controlling the conveyor to convey the record paper forward, for controlling the transfer unit to transfer the developed image to the record paper, and for controlling the conveyor to convey the record paper backward at least for one time. The control unit controls the conveyor prior to the transfer process so that the record paper is positioned at a point which is a predetermined distance before a transfer point and that a forward movement of the record paper is started on the basis of an information signal which is output in response to a state of starting an electrostatic latent image forming operation each time the transfer process is carried out.
REFERENCES:
patent: 4082443 (1978-04-01), Draugelis et al.
patent: 4101067 (1978-07-01), Sloan et al.
patent: 4697920 (1987-10-01), Palm et al.
patent: 4788572 (1988-11-01), Slayton et al.
patent: 4847660 (1989-07-01), Wheatley et al.
patent: 4849795 (1989-07-01), Spehrhley et al.
Bannai Kazunori
Furuta Hideya
Kimura Noriyuki
Koizumi Yutaka
Mamizuka Mitsuru
Moses R. L.
Ricoh & Company, Ltd.
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