Engine Sc; Sc 2Xx (Laser Optics Error) - Ricoh SP 311DN Service Manual

6.2.2 ENGINE SC

SC 2xx (Laser Optics Error)

Polygon motor on timeout error
The polygon mirror motor does not reach the targeted operating speed within 10
sec. after turning.

Polygon motor/driver board harness loose or disconnected
202

Polygon motor/driver board defective

Laser optics unit defective
1. Turn the machine main power off/on.
2. Replace the interface harness of the laser optics unit.
Replace the laser optics unit.
Polygon motor off timeout error
The polygon mirror motor does not leave the READY status within 20 sec. after
the polygon mirror motor switched off.

Polygon motor/driver board harness loose or disconnected
203

Polygon motor/driver board defective

Laser optics unit defective
1. Turn the machine main power off/on.
2. Replace the interface harness of the laser optics unit.
Replace the laser optics unit.
Polygon motor lock signal error
The signal remains HIGH for 200 ms (or 4times in 50msec polling) while the
polygon mirror motor is rotating.

Polygon motor/driver board harness loose or disconnected
204

Polygon motor/driver board defective

Laser optics unit defective
1. Turn the machine main power off/on.
2. Replace the interface harness of the laser optics unit.
3. Replace the laser optics unit.
SM 6-3 M154/M155/M174/M175/A0A7/M287/M0BB
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