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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Filing date
Publication date
Application filed by Canon IncfiledCriticalCanon Inc
Priority to JP7728472ApriorityCriticalpatent/JPS52101047A/en
Publication of JPS52101047ApublicationCriticalpatent/JPS52101047A/en
PURPOSE: To form a latent image consisting of a positive and negative potential distribution, by imagewise exposing a specified light sensitive material preliminarily charged, subjecting it to opposite polarity corona discharge, and next, exposing its whole surface to light.