Determination of photoconductor wear

Details Determination of photoconductor wear Determination of photoconductor wear

1999-09-14

2000-08-22

Beatty, Robert

Electrophotography

Diagnostics

Consumable

399389, G03G 1500

Patent

active

061084999

ABSTRACT:
Printing on a large number of units of relatively narrow media accelerates wear on a photoconductor in an electrophotographic imaging device, such as an electrophotographic printer. The accelerated wear results from movement of a cleaning blade over a surface of the photoconductor on regions of the photoconductor outside a width of the media where toner is not available as a lubricant. The accelerated wear also results from exposure of the surface of the photoconductor on regions of the photoconductor outside the width of the media to the electric fields supplied by a transfer roller. The accelerated wear can cause excessive background development on the photoconductor. Background development toner not transferred to the media is collected in the waste hopper. Excessive background development can lead to leakage of toner from the waste hopper into the electrophotographic printer. By tracking the width of the media used, the electrophotographic printer can warn the user when photoconductor wear out may result in toner leakage from the waste hopper.

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