Electrophotographic copying apparatus including method of format

Details Electrophotographic copying apparatus including method of format Electrophotographic copying apparatus including method of format

1984-10-24

1986-02-18

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525651, 118652, 430125, G03G 2100

Patent

active

045710660

ABSTRACT:
A cleaning system for a photoconductive drum in an electrographic copying apparatus is provided by appropriate utilization of the surface charging and discharging components which are already provided adjacent the path of movement of the rotating surface of the drum. An electrostatic grid is formed on a non-image portion of the surface of the drum to carry the residual toner and carrier back to the developing station. As described in detail in the parent application, the residual toner is physically moved from the image bearing segment of the drum surface to the non-image bearing segment by means of a compliant roller member manipulated in a controlled fashion relative to the movement of the drum. Also, much of the residual toner which accumulates on the compliant member during this latter procedure is moved therefrom to the non-image bearing segment of the drum and held there by electrostatic attraction to the grid on the non-image bearing portion. The residual toner is removed from the non-image bearing drum segment by appropriate biasing of the development roller which is used initially to apply the toner to the surface of the drum.

REFERENCES:
patent: 3700328 (1972-10-01), Davidge et al.
patent: 3728016 (1973-04-01), Harbour et al.
patent: 4154522 (1979-05-01), Ikesue

Affiliated with

Also associated with

Rating

Electrophotographic copying apparatus including method of format 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 copying apparatus including method of format, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrophotographic copying apparatus including method of format will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1548745