Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1987-10-09
1988-08-30
Prescott, A. C.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355140, 354312, 430117, G03G 1510
Patent
active
047680598
ABSTRACT:
A developing method in an electrophotographic apparatus in which an image on an electrophotographic film brought into a developing section is developed by a developer supplied to the developing section. During the development, a seal gas of a pressure higher than the pressure in the developing section is supplied to a seal section around the developing section so that the seal gas is forced to flow into the developing chamber to stir the developer in the developing section, thus eliminating any degradation of the quality of the developed image attributable to stagnation of the developer.
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patent: 4435071 (1984-03-01), Kuehnle
patent: 4622915 (1986-11-01), Ohtsuka et al.
patent: 4623240 (1986-11-01), Kimura et al.
patent: 4627705 (1986-12-01), Landa et al.
patent: 4727393 (1988-02-01), Ohtsuka et al.
Fuji Photo Film Co. , Ltd.
Prescott A. C.
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