Electrophotography – Having particular structure – Modular or displaceable
Reexamination Certificate
2003-09-22
2008-08-05
Beatty, Robert (Department: 2852)
Electrophotography
Having particular structure
Modular or displaceable
C399S301000
Reexamination Certificate
active
07409178
ABSTRACT:
A color laser printer includes a transfer belt unit including a transfer belt with reference marks, and a drive mechanism for the transfer belt, wherein the transfer belt unit includes a data storage unit (EEPROM) that stores color correction data and position correction data. When the transfer belt unit is new or replaced, corrections for color difference and position difference are performed based on the color correction data and the position correction data.
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U.S. Appl. No. 11/284,943, filed Nov. 23, 2005, Washio et al.
Beatty Robert
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh Company Limited
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