Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2005-04-12
2005-04-12
Pham, Hai (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S250000
Reexamination Certificate
active
06879334
ABSTRACT:
An image forming apparatus shifts a scanning position on a surface scanned of each of a plurality of optical beams in a main scanning direction and a sub-scanning direction, and scans a plurality of lines simultaneously in the main scanning direction by a deflecting part. A synchronization detecting sensor detects the plurality of optical beams. A counting part counts a clock having a higher frequency than a dot clock in an interval between a synchronization detection point of a first beam and a synchronization detection point of a second beam, the first and second beams being included in the optical beams detected by the synchronization detecting sensor. A determining part determines a starting position of writing for each of the plurality of optical beams based on a counted value counted by the counting part. A writing part writes each dot from the starting position of each of the plurality of optical beams determined by the determining part, according to the clock having the higher frequency than the dot clock.
REFERENCES:
patent: 5966231 (1999-10-01), Bush et al.
patent: 6005243 (1999-12-01), Yamazaki
patent: 6108023 (2000-08-01), Seino
patent: 6154246 (2000-11-01), Ogasawara et al.
patent: 6198495 (2001-03-01), Sawada
patent: 6-300980 (1994-10-01), None
patent: 9-66630 (1997-03-01), None
patent: 10-68900 (1998-03-01), None
patent: 11-194283 (1999-07-01), None
U.S. Appl. No. 09/725,563, filed Nov. 30, 2000, pending.
U.S. Appl. No. 10/102,853, filed Mar. 22, 2002, pending.
U.S. Appl. No. 10/279,558, filed Oct. 25, 2002, Ikeda.
U.S. Appl. No. 10/849,164, filed May 20, 2004, Ikeda.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Pham Hai
Ricoh & Company, Ltd.
LandOfFree
Image forming apparatus capable of controlling write start... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming apparatus capable of controlling write start..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus capable of controlling write start... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3409859