Electrophotographic copier

Details Electrophotographic copier Electrophotographic copier

1983-07-25

1984-12-04

Prescott, A. C.

Photocopying

Including fiber optics

355 14TR, G03G 1500

Patent

active

044860919

ABSTRACT:
The photocopier uses a development process employing a magnetic brush formed on a rotating sleeve (102) of non-magnetic material in which a system of permanent magnets (108) rotates. The outer surface of the sleeve is subjected to a sandblasting process after grinding in order to create a very uniform finely roughened surface in order to make the thickness of the toner layer forming the magnetic brush constant. The photocopier also employs a toner fixing system operating cold and under pressure by means of a pair of rollers (56, 58) of different diameter rotating at the same angular speed in order to create slippage of the upper roller relative to the lower roller for the purpose of obtaining perfectly flat copies. The copier also contains a single circuit board (80) for the low voltage and high voltage supply.

REFERENCES:
patent: 3219014 (1965-11-01), Mott et al.
patent: 4195927 (1980-04-01), Fotland et al.
patent: 4274361 (1981-06-01), Sanders et al.
patent: 4348098 (1982-09-01), Koizumi
patent: 4368971 (1983-01-01), Watanabe et al.
patent: 4377332 (1983-03-01), Tamura
patent: 4382673 (1983-05-01), Nakajima et al.

Affiliated with

Also associated with

Rating

Electrophotographic copier 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 copier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrophotographic copier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1579755