Bearing for an electrophotographic apparatus

Details Bearing for an electrophotographic apparatus Bearing for an electrophotographic apparatus

1992-10-20

1994-02-22

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384125, 384296, F16C 1702

Patent

active

052881520

ABSTRACT:
A replacement bearing is provided for use in rebuilding the nominally disposable toner cartridges that are commonly used in popularly priced electrostatic printers and copiers. When the bearing is rotated into its final position about the shaft of a toner roller, an oversize portion of the bearing is forced into a position that ensures that both the bearing retainer and the toner roller are restrained in a precise alignment. A slot, that has a predetermined gap when installed, is preferably provided in the bearing, and a decrease of the width of this gap is indicative of bearing wear. The precise alignment and wear indication means that are provided by the new bearing allow an operator to rebuild a toner cartridge that had been demonstrating the "right side problem", and to subsequently monitor the wear of a replacement bearing so as to prevent recurrence of copy degradation.

REFERENCES:
patent: 3033624 (1962-05-01), Biesecker
patent: 4573816 (1986-03-01), Pamler
patent: 4655614 (1987-04-01), Schott
patent: 4927275 (1990-05-01), Lawson

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