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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Canon Inc
Original Assignee
Canon Inc
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Publication date
Application filed by Canon IncfiledCriticalCanon Inc
Priority to JP57208908ApriorityCriticalpatent/JPS58179862A/ja
Publication of JPS58179862ApublicationCriticalpatent/JPS58179862A/ja
Publication of JPS6322581B2publicationCriticalpatent/JPS6322581B2/ja
G03G15/00—Apparatus for electrographic processes using a charge pattern
G03G15/05—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen, optically activated charging means
G03G15/051—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen, optically activated charging means by modulating an ion flow through a photoconductive screen onto which a charge image has been formed