Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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Filing date
Publication date
Application filed by Ricoh Co LtdfiledCriticalRicoh Co Ltd
Priority to JP947777ApriorityCriticalpatent/JPS5395031A/en
Publication of JPS5395031ApublicationCriticalpatent/JPS5395031A/en
PURPOSE: To simplify the construction of a developing bias control device so as to make its automatic control possible by detecting the light from an original to detect the texture density of the original so that the developing bias voltage may be controlled by the output.
COPYRIGHT: (C)1978,JPO&Japio
JP947777A1977-01-311977-01-31Developing bias control
PendingJPS5395031A
(en)