Electrophotography – Control of electrophotography process – Control of developing
Reexamination Certificate
2011-01-04
2011-01-04
Gray, David M (Department: 2852)
Electrophotography
Control of electrophotography process
Control of developing
C399S049000
Reexamination Certificate
active
07865099
ABSTRACT:
There is described an image forming apparatus, which makes it possible to suppress quality degradation of an image on the basis of a developing electric current profile without optically detecting density of a patch image. The image forming apparatus includes: a developing current detecting sensor to detect a developing current; and a control section that conducts consecutive operations of: creating a detecting-use image pattern for detecting a developing characteristic, by aligning a plurality of image patterns, which are different from each other in density; forming a latent image of the detecting-use image pattern onto the photoreceptor element; finding a developing electric current profile, which represents a transition of the developing electric current flowing during an operation of developing the detecting-use image pattern, from an outputted signal of the developing current; and changing an image forming condition, based on the developing electric current profile found by the finding operation.
REFERENCES:
patent: 2004/0018025 (2004-01-01), Park et al.
patent: 2004/0071477 (2004-04-01), Do
patent: 4-319972 (1992-11-01), None
patent: 7-175367 (1995-07-01), None
patent: 2001-343795 (2001-12-01), None
patent: 2006-106057 (2006-04-01), None
patent: 2006-126747 (2006-05-01), None
patent: 2007-102126 (2007-04-01), None
patent: 2007-133235 (2007-05-01), None
Office Action for Japanese Patent Application No. 2007-179486 mailed Jun. 23, 2009 with English translation.
Notice of Reasons for Refusal for Japanese Patent Application No. 2007-179486 with English translation mailed Feb. 23, 2010.
Kobayashi Kazutoshi
Miyasaka Yutaka
Tamura Nobuyasu
Cantor & Colburn LLP
Gray David M
Konica Minolta Business Technologies Inc.
Wong Joseph S
LandOfFree
Image forming apparatus 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2718906