Photocopying – Contact printing – Light boxes
Patent
1991-06-11
1992-11-10
Moses, Richard L.
Photocopying
Contact printing
Light boxes
355 30, 355 75, 219216, G03G 1520, G03G 2100
Patent
active
051628554
ABSTRACT:
A copying machine for reproducing an image with toner on a recording sheet. The copying machine has a photoreceptor to hold a latent image corresponding to the image on its surface, in which the surface is charged to a predetermined electric potential before holding the latent image. The latent image is developed with toner, transferred onto the recording sheet, and fixed on the recording sheet with heat. The heater of the copying machine heats up the fixing unit to a predetermined temperature, and terminates heating the fixing unit when an operation of the machine is ended. The copying machine has a capability to detect a temperature of the fixing unit and determining an interval between the time when the operation is ended and the time when the operation is restarted, based on the determined temperature of the fixing unit.
REFERENCES:
patent: 4551007 (1985-11-01), Elter
patent: 4603245 (1986-07-01), Yagasaki
patent: 4627714 (1986-12-01), Nazaki
patent: 4671643 (1987-06-01), Shigemura
patent: 4737818 (1988-04-01), Tanaka et al.
patent: 4905051 (1990-02-01), Satoh et al.
patent: 5032874 (1991-07-01), Matsuuchi
Nakagama Kiyohari
Nemoto Mitsugu
Watanabe Satoshi
Konica Corporation
Moses Richard L.
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