Image forming apparatus for judging life of photosensitive membe

Details Image forming apparatus for judging life of photosensitive membe Image forming apparatus for judging life of photosensitive membe

1996-07-24

2000-08-29

Royer, William J.

Electrophotography

Diagnostics

Consumable

399 26, G03G 1500

Patent

active

061120367

ABSTRACT:
Disclosed is an image forming appartus for judging life of photosensitive member based on revolution number of intermediate transfer member. The image forming apparatus is provided with a photosensitive rotary drum for carrying an electrostatic latent image, a developing unit for developing the electrostatic latent image on the photosensitive rotary drum with a toner, a medium transfer rotary member to which the toner image on the photosensitive drum is transferred and mediates the toner image between the photosensitive drum and a recording sheet, an integration counter for integrating revolution number information of the medium transfer rotary member, and a judging unit for judging a life of the image holding member on the basis of the number of revolutions counted by a counter. A circumference of the medium transfer rotary member is substantially integer times as large as a circumference of the photosensitive drum. The apparatus has a nonvolatile memory to store the number of revolutions of the photosensitive drum.

REFERENCES:
patent: Re35751 (1998-03-01), Midgley
patent: 4551000 (1985-11-01), Kanemitsu et al.
patent: 4707748 (1987-11-01), Ohtsuka et al.
patent: 4961088 (1990-10-01), Gilliland et al.
patent: 5101233 (1992-03-01), Ito et al.
patent: 5159388 (1992-10-01), Yoshiyama et al.
patent: 5160967 (1992-11-01), Tonegawa
patent: 5249022 (1993-09-01), Watanabe et al.
patent: 5272503 (1993-12-01), LeSueur et al.
patent: 5278612 (1994-01-01), Inui
patent: 5572292 (1996-11-01), Chatani et al.
patent: 5822646 (1998-10-01), Kinoshita et al.
patent: 5838456 (1998-11-01), Wagi et al.

Affiliated with

Also associated with

Rating

Image forming apparatus for judging life of photosensitive membe 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 for judging life of photosensitive membe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus for judging life of photosensitive membe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1257682