Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 4, 2008
Patent Application Number
10914148
Date Filed
August 10, 2004
Patent Primary Examiner
Patent abstract
A laser-control circuit board is mounted in a scanner to extend substantially parallel to a base plate, a bottom cover, and a top cover of the scanner. A synchronization detection element is attached to the under surface of the laser-control circuit board. A light beam is emitted from a light source, deflected by a polygon mirror, and is guided below the laser-control circuit board by various optical elements including a condenser lens, thereby being finally detected by the synchronization detection element. A through-hole is formed through the laser-control circuit board to check whether the synchronization detection element is in alignment with the condenser lens and other optical elements below the laser-control circuit board.
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