Cleaning apparatus for copying or the like

Details Cleaning apparatus for copying or the like Cleaning apparatus for copying or the like

1979-12-21

1982-02-02

Reeves, Robert B.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525651, 118652, 198671, 222413, G03G 2100

Patent

active

043136745

ABSTRACT:
A cleaning apparatus for removable insertion in an electrophotographic copying machine includes an exhaust cylinder having an opening at an end portion thereof and a conveyor in the cylinder operable for carrying particulate developer through the cylinder to the opening thereof. A shutter having a second opening is movable with respect to the cylinder between a first position in which the shutter closes the cylinder opening and a second position in which the openings of the shutter and cylinder are aligned, a bias spring being effective to normally maintain the shutter in its first position. When the apparatus is inserted in a copying machine, the cylinder end portion is inserted into a hopper for receiving particulate developer, causing the shutter to move to its second position in which the openings are aligned to permit movement of developer into the hopper from the exhaust cylinder. Subsequent removal of the cleaning apparatus effects automatic closure of the cylinder opening to prevent leakage of developer therethrough.

REFERENCES:
patent: 3278094 (1966-10-01), Perry
patent: 4218131 (1980-08-01), Ito et al.

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