Incremental printing of symbolic information – Electric marking apparatus or processes – Electrostatic
Reexamination Certificate
2007-01-19
2010-11-09
Meier, Stephen D (Department: 2853)
Incremental printing of symbolic information
Electric marking apparatus or processes
Electrostatic
C347S234000, C347S235000, C347S237000, C347S248000, C347S249000, C347S250000
Reexamination Certificate
active
07830402
ABSTRACT:
A high-quality image forming apparatus that is capable of accurately adjusting the size and position of an image during image formation on a second surface of a transfer material, even when there has been expansion/contraction of the transfer material due to thermal fixing after image formation on a first surface thereof, to thereby avoid image displacement during two-sided image formation and multiple image formation. A pulse adjusting section sets a second number of pulses of the image clock corresponding to a distance from BD signal detector to the write start position of the latent image during image formation on the second surface, to a number of pulses different from a first number of pulses of the image clock corresponding to a distance from the horizontal synchronization signal detecting device to the write start position of the latent image during image formation on the first surface, based on the first number of pulses of the image clock during image formation on the first surface, in accordance with an expansion/contraction ratio of the transfer material after fixing of the image on the first surface.
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Haruhiko Nakatsu; “Image Forming Apparatus and Image Write Start Position Adjusting Method for the Same”; U.S. Appl. No. 11/742,739, filed May 1, 2007 (Specification and Drawings).
Al-Hashimi Sarah
Canon Kabushiki Kaisha
Meier Stephen D
Rossi Kimms & McDowell LLP
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