Browse Prior Art Database

Improved Drum Clean Blade Configuration

IP.com Disclosure Number: IPCOM000045763D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Droge, DA: AUTHOR [+2]

Abstract

In an electrophotographic machine, a flexible cleaning blade bears against the surface of a rotating photoreceptor to clean residual toner from the photoreceptor surface. This article provides the design of an improved cleaning blade holder with tabs at each end to compensate for end force roll-off and thereby improve cleaning at each end.

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Improved Drum Clean Blade Configuration

In an electrophotographic machine, a flexible cleaning blade bears against the surface of a rotating photoreceptor to clean residual toner from the photoreceptor surface. This article provides the design of an improved cleaning blade holder with tabs at each end to compensate for end force roll-off and thereby improve cleaning at each end.

Fig. 1 shows the end view of a drum 20 rotating in the direction shown. The drum surface is coated with a photoreceptor and rotates past a flexible cleaning blade 10 located by a blade holder 11 to bear against the rotating photoreceptive surface. Fig. 2 shows a longitudinal view of the blade 10 and holder 11 with tabs 12 and 13 located at each end of the holder. Through use of the tabs 12 and 13, the total force with which the blade acts against the photoreceptive surface can be reduced, thus increasing the effective life of both the photoreceptor and the cleaning blade because of a reduced wear rate on both components.

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