Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2005-12-27
2009-06-02
Gleitz, Ryan (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S277000
Reexamination Certificate
active
07542696
ABSTRACT:
A developing device is disclosed which includes a fixed magnet roller25having a plurality of magnetic poles, a development roller27having a development sleeve26that is supported axially with the ability to rotate freely, and a magnetic sealing member29arranged at the end of the longitudinal direction X of the development sleeve26. Further, the length of each of the plurality of magnetic poles not facing the magnetic sealing member29(in other words, the development pole S1, lead-in pole N1, and blade pole N3) of the fixed magnet roller25are shorter than the length of each of the plurality of magnetic poles facing the magnetic sealing member29. Accordingly, the magnetic toner retained on the peripheral surface of the development sleeve26is guided to the development area side in the longitudinal direction X of the development sleeve26.
REFERENCES:
patent: 4246867 (1981-01-01), Hudson
patent: 2004/0001727 (2004-01-01), Akutsu
patent: 2003/15411 (2003-01-01), None
Kotera Asami
Nimura Eiji
Gleitz Ryan
Global IP Counselors, LLP
Kyocera Mita Corporation
LandOfFree
Developing device and image forming device equipped with 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 Developing device and image forming device equipped with same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing device and image forming device equipped with same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4074414