Electrophotography – Control of electrophotography process – Of plural processes
Reexamination Certificate
2008-07-01
2008-07-01
Gleitz, Ryan (Department: 2852)
Electrophotography
Control of electrophotography process
Of plural processes
C399S044000
Reexamination Certificate
active
07395002
ABSTRACT:
An image forming apparatus including: an outputted image density control portion that forms a patch image and determines an outputted image density control condition based on a comparison result of the density of the patch image with a preliminarily set target value; a pixel count portion capable of counting the amount of image pixel at the time of image formation; a pixel count value accumulating memory portion that accumulates and stores the pixel count value; a toner supply portion; a toner supply amount measuring portion capable of measuring the amount of toner supplied to the developing device; a toner supply amount accumulating memory portion that accumulates and stores the toner supply amount; and a target value correcting portion that corrects the target value of the density of the patch image from the relation between a pixel count accumulating value and a toner supply amount accumulation value, is provided.
REFERENCES:
patent: 7058321 (2006-06-01), Kin
patent: 2006/0245770 (2006-11-01), Choi
patent: 5-210279 (1993-08-01), None
patent: 2004-318114 (2001-11-01), None
patent: 2004-109599 (2004-04-01), None
Fukasawa Hisashi
Funayama Yasuhiro
Kanai Makoto
Nagamine Kiyoshi
Sakuma Masaru
Fuji 'Xerox Co., Ltd.
Gleitz Ryan
Sughrue & Mion, PLLC
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