Photoreceptor drum axle improvement

Details Photoreceptor drum axle improvement Photoreceptor drum axle improvement

1994-04-28

1995-08-22

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355211, G03G 2100, G03G 2116

Patent

active

054445167

ABSTRACT:
A sleeve for the shaft section of a plastic drum axle used in toner cartridges for printing, copy and facsimile machines to rotatively support the photoreceptor drum. The sleeve is made of strong plastic or metal and is sized to snugly fit around the shaft section. Glue may be used to further secure the sleeve to the shaft section. The sleeve is slid onto the drum axle shaft section and abuts against the drum axle attach section. The sleeve has a length and an outside diameter which allow the sleeve to snugly fit in the gear piece of the photoreceptor drum, eliminating the clearance between the shaft section and gear piece passage. In this way the gear piece and photoreceptor drum are rotatively supported on the drum axle along nearly the entire length of the shaft section, preventing the photoreceptor drum from wobbling during operation and rotation.

REFERENCES:
patent: 4530588 (1985-07-01), Kimura et al.
patent: 4575221 (1986-03-01), Onoda et al.
patent: 4839690 (1989-06-01), Onoda et al.
patent: 4951599 (1990-08-01), Damji
patent: 4975744 (1990-12-01), Ebata et al.
patent: 5019861 (1991-05-01), Surti
patent: 5132728 (1992-07-01), Suzaki et al.
patent: 5142322 (1992-08-01), Surti

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