Ricoh M156, Руководство по обслуживанию

Страница: 118 / 169

Service Call
M156/M157/M176/M177 6-2 SM
6.2 SERVICE CALL
See " Appendices " for the "Error Messages".
6.2.1 SUMMARY
This machine issues an SC (Service Call) code if an error occurs with the machine. The error
code can be seen on the operation panel.
Make sure that you understand the following points;
1. All SCs are logged.
2. At first, always turn the main switch off and on if an SC code is displayed.
3. First, disconnect then reconnect the connectors before replacing the PCBs (if the problem
concerns electrical circuit boards).
4. First, check the mechanical load before replacing motors or sensors (if the problem concerns
a locked motor).
Fusing related SCs
To prevent damage to the machine, the main machine cannot be operated until the fusing related
SC has been reset by a service representative.

Enter the “Engine Maintenance” in the “Maintenance mode”.
Press "Execute" in "Fuser SC Reset" with engine maintenance mode, and then turn the main
power switch off and on.
6.2.2 ENGINE SC
SC 2xx (Laser Optics Error)
202
Polygon motor on timeout error
The polygon mirror motor does not reach the targeted operating speed within 10
sec. after turning.
203
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.
204
Polygon motor lock signal error
The signal remains HIGH for 200 ms (or 4times in 50msec polling) while the
polygon mirror motor is rotating.