Electrophotographic apparatus controlling image quality accordin

Details Electrophotographic apparatus controlling image quality accordin Electrophotographic apparatus controlling image quality accordin

1988-08-29

1990-11-13

Grimley, A. T.

Photocopying

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118661, 355208, 355209, 355251, G03G 2100

Patent

active

049705571

ABSTRACT:
Electrophotographic apparatus according to this invention are controlled in different ways such that quality of produced images is not affected by deterioration of the developing agent or the condition of the photoreceptor. A timer may be provided to detect the duration of a rest period to adjust the speed of development accordingly as well as by the number of copies produced. Similar control may be effected by measuring the surface voltage of the photoreceptor by a voltage detector and by adjusting the output level of the principal charger used for uniformly charging the photoreceptor prior to a development process.

REFERENCES:
patent: 3944354 (1976-03-01), Benwood
patent: 4261660 (1981-04-01), Suzuki
patent: 4462680 (1984-07-01), Ikeda
patent: 4521098 (1985-06-01), Hosoya
patent: 4533234 (1985-08-01), Watai
patent: 4591261 (1986-05-01), Saruwatari
patent: 4616923 (1986-10-01), Reuter
patent: 4734737 (1988-03-01), Koichi
patent: 4785331 (1988-11-01), Oka et al.

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