Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1982-05-26
1983-11-22
Moses, R. L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
118689, 222DIG1, 355 55, G03G 1500
Patent
active
044165358
ABSTRACT:
The disclosure is directed to an improved electrophotographic copying apparatus which includes a detector for detecting amount of toner adhering to a reference latent image, a replenishing device for replenishing toner to a developer in a developing device when the toner amount detected by the detector falls below reference toner amount and a correcting device for changing the reference toner amount, and/or voltage of a developing bias power source at a time when the reference latent image is developed, according to an operation for altering original document projecting magnifications, so that toner concentration of the developer may be maintained in the best condition at a reduced size magnification as well as an equal size magnification.
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patent: 4348100 (1982-09-01), Snelling
Minolta Camera Kabushiki Kaisha
Moses R. L.
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