Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Katsumi Ishizawa0
Hiroshi Ueno0
Date of Patent
March 4, 2008
0Patent Application Number
108361940
Date Filed
May 3, 2004
0Patent Primary Examiner
Patent abstract
An exposure device for an electrophotographic apparatus including one or more laser light sources which expose an image carrier in accordance with a print information signal supplied from an external information processing apparatus, a resolution switching lens, and a switching unit to switch over a low resolution and a high resolution by inserting and extracting the resolution switching lens into and from a laser optical path. Preferably, a light emission time of each of the laser light sources with respect to the print information signal is changeable.
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