Residual Paper Detection Mechanism; Paper End Detection - Lexmark C920 Service Manual

Color laser printer

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Residual paper detection mechanism

The residual paper quantity in the tray is detected with four photo interrupters. The quantity of pages remaining

in the sheet feeder displays in the following increments:

Near end, about 80 sheets

About 300 sheets

About 1,000 sheets

About 2,000 sheets

A reflection type sensor is provided on the top stay to detect the paper top surface and the paper end.

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