Developing method using a two-ingredient type developer and...

Details Developing method using a two-ingredient type developer and... Developing method using a two-ingredient type developer and...

2007-10-16

2007-10-16

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Development

C399S277000

Reexamination Certificate

active

11408057

ABSTRACT:
A developing method of the present invention is practicable with a developing unit of the type including a rotatable, nonmagnetic sleeve and a rigid metering member. A two ingredient type developer made up of magnetic carrier grains and toner grains is magnetically deposited on the sleeve. The metering member meters the amount of the developer deposited on the sleeve. The sleeve has surface roughness Rz ranging from 5 μm to 20 μm. The carrier grains each are covered with a coating layer containing at least binder resin and grains. The ratio of the diameter D of the individual grain contained in the coating layer to the thickness h of the binder resin layer lies in the range of 1<D/h<10. The carrier grains have a weight-mean grain size ranging from 20 μm to 60 μm.

REFERENCES:
patent: 4696255 (1987-09-01), Yano et al.
patent: 5991586 (1999-11-01), Nagao
patent: 6406826 (2002-06-01), Suzuki et al.
patent: 6895203 (2005-05-01), Ozeki et al.
patent: 2002/0028094 (2002-03-01), Sakemi et al.
patent: 61-261761 (1986-11-01), None
patent: 62-286070 (1987-12-01), None
patent: 02-043566 (1990-02-01), None
patent: 03-119363 (1991-05-01), None
patent: 4-60647 (1992-02-01), None
patent: 05-011601 (1993-01-01), None
patent: 5-19632 (1993-01-01), None
patent: 5-46018 (1993-02-01), None
patent: 05-303249 (1993-11-01), None
patent: 06-043743 (1994-02-01), None
patent: 7-160176 (1995-06-01), None
patent: 07-160176 (1995-06-01), None
patent: 7-271106 (1995-10-01), None
patent: 8-15906 (1996-01-01), None
patent: 08-069169 (1996-12-01), None
patent: 9-22188 (1997-01-01), None
patent: 09-160304 (1997-06-01), None
patent: 9-160304 (1997-06-01), None
patent: 11-231653 (1999-08-01), None
patent: 11-327305 (1999-11-01), None
patent: 11-338309 (1999-12-01), None
patent: 2000-010336 (2000-01-01), None
patent: 2000-10336 (2000-01-01), None
patent: 2000-47489 (2000-02-01), None
patent: 2000-122349 (2000-04-01), None
patent: 2000-155462 (2000-06-01), None
patent: 2000-250308 (2000-09-01), None
patent: 2001-5293 (2001-01-01), None
patent: 2001-51454 (2001-02-01), None
patent: 2001-305862 (2001-02-01), None
patent: 2001-100532 (2001-04-01), None
patent: 2001-188388 (2001-07-01), None
patent: 2001-312144 (2001-11-01), None
patent: 2001-324862 (2001-11-01), None
patent: 2001-324872 (2001-11-01), None
patent: 2002-62737 (2002-02-01), None
patent: 566661 (2003-03-01), None

Affiliated with

Also associated with

Rating

Developing method using a two-ingredient type developer and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Developing method using a two-ingredient type developer and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing method using a two-ingredient type developer and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3831803