Developing apparatus features first and second developing...

Details Developing apparatus features first and second developing... Developing apparatus features first and second developing...

2007-05-15

2007-05-15

Chen, Sophia S. (Department: 2852)

Electrophotography

Image formation

Development

C399S053000

Reexamination Certificate

active

11157820

ABSTRACT:
A developing apparatus provided with first and second members disposed on an upstream and downstream sides, respectively, and opposed to an image bearing member. When a closest distance between the first developing member and the image bearing member is defined as SD1 (m), and the closest distance between the second developing member and the image bearing member is defined as SD2 (m), and the peak-to-peak voltage of a developing bias applied to the first developing member is defined as V1 (V), and the peak-to-peak voltage of the developing bias applied to the second developing member is defined as V2 (V), and the volume resistivity of the carrier is 1.0×10xΩ·cm,in-line-formulae description="In-line Formulae" end="lead"?V1/SD1−V2/SD2≦(0.65x−4.5)×106(V/m),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?1.2×106≦V1/SD1≦(0.35x+3.5)×106(V/m),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?(0.30x−1.5)×106≦V2/SD2≦9.0×106(V/m), andin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?9.0≦X≦13.0in-line-formulae description="In-line Formulae" end="tail"?are satisfied.

REFERENCES:
patent: 4436055 (1984-03-01), Yamashita et al.
patent: 5300987 (1994-04-01), Aoyama et al.
patent: 5911098 (1999-06-01), Gyotoku et al.
patent: 5923933 (1999-07-01), Anzai et al.
patent: 6636717 (2003-10-01), Itoh
patent: 2006/0222415 (2006-10-01), Hirobe
patent: 8-123196 (1996-05-01), None
patent: 11-161017 (1999-06-01), None

Affiliated with

Also associated with

Rating

Developing apparatus features first and second developing... 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 apparatus features first and second developing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing apparatus features first and second developing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3794817