Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jiunn-Jiang Chen0
Date of Patent
August 18, 2009
0Patent Application Number
122323450
Date Filed
September 16, 2008
0Patent Primary Examiner
Patent abstract
A positioning apparatus for a printer. The positioning apparatus includes at least one encoder, an OPC belt, and a code strip consisting of a reference bar code region, a blank region and a normal bar code region. The OPC belt is moved relative to the encoder and has a joint region. The code strip is mounted on the OPC belt and has multiple of bar codes. The encoder is used for detecting the bar codes and generating a displacement signal representing a displacement of the OPC belt moved relative to the encoder. The blank region may adjoin the joint region. Therefore, a home position can be located precisely by the displacement signal due to the existence of the reference bar code region and blank region.
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