Electrophotographic apparatus utilizing a hollow roller changing

Photocopying – Contact printing – Light boxes

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

355296, G03G 1502

Patent

active

054833230

ABSTRACT:
In an electrophotographic apparatus using a charging apparatus for contact charging, the charging apparatus includes a flexible and hollow electrically conducting roller, and an electrically conducting brush roller which is provided in the hollow roller in concentric therewith and to rotate relative thereto, wherein a charging voltage is applied to the hollow roller via the brush roller, and the photosensitive material is electrically charged by rotating the hollow roller by bringing it into physical contact with the photosensitive material, and the hollow roller is brought at its both end portions into press-contact with the end portions on the surface of the photosensitive material and is rotated by being driven by the photosensitive material. In this apparatus, the hollow roller that comes into contact with the surface of the photosensitive material is driven at substantially the same speed as the photosensitive material, whereby slipping and wear are effectively prevented from occurring on the surface of the photosensitive material, durability of the photosensitive material is not lost, the hollow roller that is subject to be easily deformed is effectively prevented from being twisted, enabling the electric charging to be carried out stably and uniformly For extended periods of time.

REFERENCES:
patent: 4392177 (1983-07-01), Geyken
patent: 5088706 (1991-04-01), Ohmori et al.
patent: 5095335 (1992-03-01), Watanabe et al.
patent: 5126913 (1992-06-01), Araya et al.
patent: 5144368 (1992-09-01), Ohzeki et al.
patent: 5146280 (1992-09-01), Kisu
patent: 5321471 (1994-06-01), Ito et al.
patent: 5357323 (1994-10-01), Haneda et al.
patent: 5367364 (1994-11-01), Michlin et al.
patent: 5367365 (1994-11-01), Haneda et al.
patent: 5410386 (1995-04-01), Swift et al.
patent: 5426488 (1995-06-01), Hayakawa et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electrophotographic apparatus utilizing a hollow roller changing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrophotographic apparatus utilizing a hollow roller changing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrophotographic apparatus utilizing a hollow roller changing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1306075

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.