Process cartridge, developing cartridge and developing roller

Details Process cartridge, developing cartridge and developing roller Process cartridge, developing cartridge and developing roller

2006-12-26

2006-12-26

Gray, David M. (Department: 2852)

Electrophotography

Internal machine environment

Particle or contaminant control

C399S222000, C399S284000

Reexamination Certificate

active

07155137

ABSTRACT:
A developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a developing roller, for developing an electrostatic latent image formed on an electrophotographic photosensitive member, having an elastic roller portion and a shaft portion supporting the elastic roller portion, a developer regulating member; a protecting member including a contact portion provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member; and a supporting portion for supporting the contact portion and provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member. The contact portion has a hardness which is not less than a predetermined value and not more than a hardness of the elastic roller portion.

REFERENCES:
patent: 5331373 (1994-07-01), Nomura et al.
patent: 5452056 (1995-09-01), Nomura et al.
patent: 5585889 (1996-12-01), Shishido et al.
patent: 5749026 (1998-05-01), Goldie
patent: 5765077 (1998-06-01), Sakurai et al.
patent: 6009287 (1999-12-01), Goldie
patent: 6064843 (2000-05-01), Isobe et al.
patent: 6115567 (2000-09-01), Kawai et al.
patent: 6128462 (2000-10-01), Kato et al.
patent: 6169869 (2001-01-01), Inami et al.
patent: 6175703 (2001-01-01), Nakazono et al.
patent: 6219076 (2001-04-01), Sato
patent: 6317574 (2001-11-01), Shinohara et al.
patent: 6324370 (2001-11-01), Isobe et al.
patent: 6337964 (2002-01-01), Inami et al.
patent: 6442359 (2002-08-01), Numagami et al.
patent: 6463233 (2002-10-01), Kojima et al.
patent: 6564029 (2003-05-01), Kojima et al.
patent: 6810221 (2004-10-01), Meyer et al.
patent: 2002/0110386 (2002-08-01), Kanno et al.
patent: 2003/0086715 (2003-05-01), Miura et al.
patent: 2003/0091353 (2003-05-01), Hiroshima et al.
patent: 57-210372 (1982-12-01), None
patent: 5-224575 (1993-09-01), None
patent: 7-311536 (1995-11-01), None
patent: 2000-56535 (2000-02-01), None
patent: 2000-132040 (2000-05-01), None
patent: 2001-290370 (2001-10-01), None

Affiliated with

Also associated with

Rating

Process cartridge, developing cartridge and developing roller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process cartridge, developing cartridge and developing roller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process cartridge, developing cartridge and developing roller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3694862