Photoreceptor drum, charge roller and developer brush spinner de

Details Photoreceptor drum, charge roller and developer brush spinner de Photoreceptor drum, charge roller and developer brush spinner de

1992-09-11

1994-05-03

Braun, Fred L.

Photocopying

Contact printing

Light boxes

82165, 82166, 142 53, G03G 2100, G03G 1500

Patent

active

053092007

ABSTRACT:
Components are disclosed which allow a powerful, variable speed lathe to turn the photoreceptor drums, charge rollers and developer brushes of printers, copiers, and facsimile machines. In one embodiment, adapter units fit over the cylindrical extensions on the ends of the drum. Two pieces of opposing tail stock support and hold the drum on the lathe by applying pressure against the adapter units. A drive bushing is attached to and rotates with the drive bolt of the lathe. The drive bushing has one or more drive pins which interact with the spoke-like members on the drum to turn or spin the drum and allow it to be cleaned, polished, coated or otherwise treated. In a second embodiment, a short length of hose is used to connect the adapter unit with the charge roller or developer brush. The drive pin of the drive bushing is received in a hole on the surface of the adapter unit facing the drive bushing. The roller or brush is turned on the lathe by having the drive bushing turn the adapter unit. The same drive bushing, adapter units and tail stocks can therefore be used to drive photoreceptor drums, charge rollers and developer brushes. Depending on the type of photoreceptor drum end, it is possible to spin the drum using just the drive bushing and tail stock without an adapter unit.

REFERENCES:
patent: 2876807 (1959-03-01), Christensen
patent: 3608915 (1971-09-01), Hohwart
patent: 3862391 (1975-01-01), Blomgren et al.
patent: 4839690 (1989-06-01), Onoda et al.
patent: 4975744 (1990-12-01), Ebata et al.
patent: 5079401 (1992-01-01), Suchan
patent: 5132728 (1992-07-01), Suzaki et al.

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