Waste toner recovery device for use in electrostatic copying mac

Details Waste toner recovery device for use in electrostatic copying mac Waste toner recovery device for use in electrostatic copying mac

1989-07-03

1991-01-01

Moses, R. L.

Photocopying

Contact printing

Light boxes

355298, G03G 2100

Patent

active

049822314

ABSTRACT:
A waste toner recovery device for use in electrostatic copying machines has a sensor and control unit which provide an advance warning when the volume of waste toner in a waste toner recovery bottle reaches a specific warning-start quantity. The control unit allows a desired value corresponding to the warning-start quantity to be selected in the copying machine.

REFERENCES:
patent: 3838922 (1974-10-01), Nelson
patent: 4627716 (1986-12-01), Oka
patent: 4851875 (1989-07-01), Tanimoto

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