System for adjusting output current of discharge electrode for electrophotographic copying machines
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsTadashi Umezawa, Seiichi Yagi, Katsuhiro Syukuri
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Abstract
A system for adjusting the output current of a discharge electrode for electrophotographic copying machines comprising the step of adjusting the output current of the discharge electrode in the electrophotographic copying machine by selecting a selector switch which corresponds to a class of photosensitive members, such that the discharge electrode produces an output current which is suited for the photosensitive members of the class.
Claims3
An electrophotographic copying machine characterized by comprising a high-voltage power supply, a discharge electrode connected to an output terminal of the high-voltage power supply, a photosensitive member classified previously to one rank of a plurality of ranks according to the charging characteristics thereof, and a circuit for adjusting the output current of the discharge electrode according to the charging characteristics of the photosensitive member to be used, provided between the high-voltage power supply and the output terminal thereof, the circuit for adjusting the output current of the discharge electrode having a group of selector switches S.sub.1 -S.sub.6 connected in parallel with one another and a group of resistors each connected in series with each switch.
Dependencies are inferred from the claim text.