Photocopying – Contact printing – Light boxes
Patent
1989-12-15
1991-11-05
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355208, 355256, 355297, 355307, G03G 2100
Patent
active
050634143
ABSTRACT:
A semimoist process copier for electrostatically forming a latent image on a photoconductive element and developing it by a liquid developer. When the temperature of the liquid developer or that of the photoconductive drum is lower than a predetermined temperature, the state of the copier just after the end of the previous copying operation is maintained. A person intending to operate the copier for a subsequent copying operation is capable of doing so immediately. The elimination of a waiting period after a drum cleaning operation is performed is achieved by allowing a drum cleaning blade to remain in contact with the drum when the temperature of the liquid developer or the drum is below a reference temperature. In this manner, when the drum or developer temperature is below the reference temperature, no waiting period is experienced by the user on subsequent attempts to copy.
REFERENCES:
patent: Re28568 (1975-10-01), Saito et al.
patent: 4551009 (1985-11-01), Shigemura et al.
patent: 4678316 (1987-07-01), Abuyama
patent: 4745436 (1988-05-01), Matsuura
patent: 4789432 (1988-12-01), Goodnow et al.
patent: 4989048 (1991-01-01), Arai et al.
Barlow Jr. J. E.
Grimley A. T.
Ricoh & Company, Ltd.
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