Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-10-24
2006-10-24
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S120400, C430S126200, C430S110300, C430S110400, C430S111400, C399S328000, C399S046000
Reexamination Certificate
active
07125638
ABSTRACT:
An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic transfer was set at 0.25 or less. The average halftone granularity was found by measuring the granularity of a toner image at locations of different average brightness by means of newly proposed formula, and averaging the measured values for which the average brightness is 40 to 80. The estimated average halftone granularity was obtained by estimating the average halftone granularity of the toner image on a photoreceptor by means of a newly proposed method.
REFERENCES:
patent: 5812917 (1998-09-01), Iwata et al.
patent: 5873017 (1999-02-01), Soga et al.
patent: 5912100 (1999-06-01), Aoki et al.
patent: 5994016 (1999-11-01), Kuramoto et al.
patent: 6060201 (2000-05-01), Kinoshita et al.
patent: 6067435 (2000-05-01), Soga et al.
patent: 6112046 (2000-08-01), Suzuki et al.
patent: 6120960 (2000-09-01), Aoki et al.
patent: 6248488 (2001-06-01), Kinoshita et al.
patent: 6403275 (2002-06-01), Kuramoto et al.
patent: 6496666 (2002-12-01), Hayashi et al.
patent: 6593048 (2003-07-01), Sasaki et al.
patent: 6667141 (2003-12-01), Iwamoto et al.
patent: 6699632 (2004-03-01), Higuchi et al.
Aoki Mitsuo
Kasai Tadashi
Koichi Yasushi
Shu Bing
Soga Setsuo
Chapman Mark A.
Ricoh & Company, Ltd.
LandOfFree
Image forming method and image forming apparatus for same 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 method and image forming apparatus for same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming method and image forming apparatus for same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3718785