Photoconductor belt seam detection

Details Photoconductor belt seam detection Photoconductor belt seam detection

1998-09-28

1999-10-12

Grimley, Arthur T.

Electrophotography

Image formation

Photoconductive member

399162, 19881001, G03G 1500

Patent

active

059665726

ABSTRACT:
An electrophotographic printing machine that has a photoconductive belt with a skewed seam thereon. The position of the skewed seam is detected by a pair of seam detection devices. The seam detection devices are spaced from one another and adapted to transmit a pair of signals with the signals having a time interval therebetween. These signals are inputted to a detection circuit and, if the time interval between signals is within a preselected tolerance, the detection circuit generates a seam indication signal. In this way, scratches on the photoconductive surface may be discriminated from the seam.

REFERENCES:
patent: 4194659 (1980-03-01), Birch
patent: 5291245 (1994-03-01), Charnitski et al.
patent: 5455136 (1995-10-01), Yu et al.

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