Scavanging apparatus for an electrostatic copier

Details Scavanging apparatus for an electrostatic copier Scavanging apparatus for an electrostatic copier

1975-07-07

1976-05-11

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Attachments

Moving surface scraper, wiper, or brush

355 15, G03G 1300

Patent

active

039552357

ABSTRACT:
Within a cleaning station for an electrostatic copier, a rotatable scavanging roll has a peripheral scavanging surface. Particulate matter, including toner entrained in an air stream, passes by the scavanger roll; the roll being electrically charged attracts a portion of the entrained particulate material. An air permeable filter is in cleaning contact with one circumferential portion of the scavanger roll for at least partially cleaning particulate matter therefrom, while simultaneously capturing entrained particulate material not attracted to the scavanging roll. In a preferred form, the cleansing filter has a relatively coarse mesh adjacent and contacting the scavanging roll and at an air-receiving portion. The filter has an exit portion of relatively fine mesh for capturing all particulate material.

REFERENCES:
patent: 3615813 (1971-10-01), Clarke et al.
IBM Technical Disclosure Bulletin, Vol. 15, No. 12, May 1973.

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