Ricoh P C300W Field Service Manual page 220

6.Troubleshooting
SC No. Type
11 Measurement is started 60 seconds after turning the fusing lamp ON, and the
fusing thermopile (TH2) has detected -100 °C from the target temperature
continuously for 60 seconds. AND the power supply voltage is lower than specified
voltage.
•
•
Check if the SC occurs by turning the power OFF then ON. If the SC occurs again,
do the following steps. Check if the SC reoccurs by cycling the power after each
step.
1.
2.
3.
4.
5.
6.
SC No. Type
SC551- A Fusing NC sensor (S1) disconnect error
01
After turning the fusing lamp ON, the fusing NC sensor has detected the AD value
of 0x3F6 or more continuously for 0.2 seconds.
•
•
Enter the SP mode and execute fuser SC reset. Then turn the machine OFF and
ON.
If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling
the power after each step.
1.
2.
3.
4.
5.
SC No. Type
SC551- A Fusing NC sensor (S1) short-circuit
02
After turning the fusing lamp ON, the fusing NC sensor has detected the AD value
of 0x008 or less continuously for 0.2 seconds.
208
Error Name/Error Condition/Major Cause/Solution
Fusing lamp defective
Harness connector lose, broken, or defective
Check the input power source and reconnect the cable to the outlet.
Replace the fusing thermostat (TH1).
Replace the fusing sleeve belt unit.
Replace the fusing thermopile (TH2).
Replace the EGB (PCB1) or/and the PSU (PCB4).
If the problem is low voltage, ask the client to connect the machine directly to a
rated power source and to refrain from using extension cords.
Error Name/Error Condition/Major Cause/Solution
Fusing NC sensor disconnected
Harness connector lose, broken, or defective
Re-connect the connector of the fusing NC sensor (S1).
Replace the fusing NC sensor (S1).
Replace the fusing unit.
Replace the fusing NC sensor (S1) harness.
Replace the EGB (PCB1) or/and the PSU (PCB4).
Error Name/Error Condition/Major Cause/Solution