Ricoh Mo-C1, Service Manual, Page: 676 / 1052

Roll Units
No. Component Function
1 Bypass Sensor
Detects the trailing edge of the cut sheet manually inserted into
the main machine for bypass feed.
2 Pre-Registration Sensor
Located at the top of the vertical paper feed path in the main
unit, detects the leading edge of paper roll paper.
3 Roll Unit Exit Sensor
Detects the leading edge of the roll paper as it leaves the roll
unit.
4 Paper Entrance Sensor
Detects the edge of the roll paper when it leaves the roll unit
and enters the main paper path.
5 Paper Feed Clutch
Engages and disengages the cam shaft that raises and lowers
the roll feed roller idle rollers in the roll unit. This closes and
opens the nip of the roll feed roller.
6 Roll Feed Motor
Drives the roll paper feed roller that feeds the roll paper from
the roll unit.
7 Roll Rewind Switch
Located on the inside cover of the right end of Roll Unit 1.
Depressing the switch rewinds the paper onto the paper roll.
6. Troubleshooting
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