Ricoh SP 8400DN Field Service Manual page 1419

Ricoh a3 size black and white laser printer.

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7.Detailed Descriptions

Bypass feed paper end detection

To detect bypass feed paper end, a paper detection feeler and bypass feed paper end sensor are provided.

When the paper is set, the bypass paper end sensor switches ON (interrupt), and paper set is detected.

When there is no more paper, a detection filler falls into a hole in the bypass feed table, the bypass paper end

sensor switches OFF (pass), and paper end is detected.

Bypass paper feed drive

The paper feed roller, reverse roller and pick-up roller are driven by the duplex/bypass feed motor.

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