Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kiyoshi Tsujino0
Yujiro Nomura0
Date of Patent
April 7, 2009
0Patent Application Number
107441050
Date Filed
December 24, 2003
0Patent Primary Examiner
Patent abstract
A line head includes a plurality of the light emitting element columns which has a main light emitting element column exposing a light amount necessary for exposure to an image carrier and an auxiliary light emitting element column exposing the image carrier so as to obtain the light amount necessary for exposure even when a light emitting element having a pixel defect is existed in the main light emitting element column.
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