Ricoh G157 Service Manual page 103

Error
No.
Code
26 SVC H1 Fusing Lamp Error:
Temperature detection circuit works
when the fusing temperature
becomes higher than the specified
temperature.
27 SVC H2 Fusing Temperature Error (Warming-
Up):
Fusing temperature does not reach
the specified temperature within the
warming-up process.
28 SVC H3 Fusing Temperature Error (Printing):
Fusing temperature declines during
the printing process and cannot
reach the specified temperature
again after the lapse of certain time.
29 SVC H4 Fusing Temperature High Error:
Fusing temperature rises during the
printing process and cannot go down
to the specified temperature after the
lapse of certain time.
30 SVC HA Fusing ACOFF Error (Relay Off):
Temperature detection circuit works
when the fusing temperature
becomes the specified abnormal
temperature (approximately 190 C.)
31 SVC L1 Beam Detector Error (BDT Error):
Laser scanning beam is not detected
by Beam Sensor.
32 SVC L2 Scanner Motor Error:
NOT READY signal (rotation error
signal) is detected in case of the
abnormal motor rotation of Scanner
Motor.
33 SVC LL Laser Power Error:
Detection circuit detects that the
laser output is lower than the
specified figure.
34 SVC N3 High Voltage Unit Connection Error:
Connector Harness between BCU
and High Voltage Unit is not properly
connected.
35 SVC N4 Toner End Sensor Error 1:
Connector Harness between BCU
and Toner End Sensor (the light
emitting side) is not properly
connected.
36 SVC N5 Toner End Sensor Error 2:
Connector Harness between BCU
and Toner End Sensor (the light
receiving side) is not properly
connected.
SM
Possible Cause
4-13
ERROR INDICATION
Countermeasure
1. Check the harness connection.
(FUCN: pin 1 ~ 8)
2. Replace the Fusing Unit .
3. Replace the Power Supply Unit.
4. Replace the BCU.
Same as the countermeasures for H1.
Same as the countermeasures for H1.
Same as the countermeasures for H1.
Same as the countermeasures for H1.
1. Check the harness connection.
(LCN1)
2. Replace the Optics Unit.
3. Replace the BCU.
Same as the countermeasures for L1.
Same as the countermeasures for L1.
1. Check the harness connection.
(HVCN: pin 1)
2. Replace the High Voltage Unit.
3. Replace the BCU.
1. Check the harness connection.
(MCN8: pin 1, 3, 5)
2. Replace the Emitter of the Toner
End Sensor.
3. Replace the BCU.
1. Check the harness connection.
(MCN8: pin 2, 4, 6, 8, 10, 12)
2. Replace the Receptor of the Toner
End Sensor.
3. Replace the BCU.
G157