Service Call Conditions
M052/M053/M054 6-6 SM
195 D
Serial Number Mismatch
Serial number stored in the memory does not have the correct code.
NVRAM defective
BCU replaced without original NVRAM
1. Reinstall the original NVRAM in the replaced BCU.
2. Turn off and on the main power switch of the copier if a new NVRAM is
installed in the BCU.
SC2xx: Laser Exposure
202 D
Polygon motor error 1: ON timeout
The polygon mirror motor did not reach the targeted operating speed
within 10 sec. after turning on or changing speed
203 D
Polygon motor error 1: OFF timeout
The polygon mirror motor did not leave READY status within 3 sec. after
polygon motor switched off.
204 D
Polygon motor error 1: XSCRDY signal error
The XSCRDY signal remained HIGH four times consecutively while the
LD unit was firing.
Polygon motor/driver board harness loose or broken
Polygon motor/driver board defective
Laser unit defective
BICU defective
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