Ricoh P C300W Field Service Manual page 222

6.Troubleshooting
SC No. Type
None
SC No. Type
SC561- A Pressure roller thermistor (center) (TH3) disconnect error
01
After turning the fusing lamp ON, the pressure roller thermistor (center) has
detected -20 °C or less continuously for 28 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.
SC No. Type
SC561- D Pressure roller thermistor (center) (TH3) disconnect error: Low voltage
11
After turning the fusing lamp ON, the pressure roller thermistor (center) has
detected -20 °C or less continuously for 28 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.
SC No. Type
SC562- A No reload temperature of the pressure roller thermistor (center) (TH3)
02
After turning the fusing lamp ON, the pressure roller thermistor (center) has failed
to reach -40 °C continuously for 30 seconds.
210
Error Name/Error Condition/Major Cause/Solution
Error Name/Error Condition/Major Cause/Solution
Pressure roller thermistor (center) (TH3) disconnected
Harness connector lose, broken, defective
Re-connect the connector of the pressure roller thermistor (center) (TH3)
harness.
Replace the pressure roller thermistor (center) (TH3).
Error Name/Error Condition/Major Cause/Solution
Pressure roller thermistor (center) (TH3) disconnected
Harness connector lose, broken, defective
Check the input power source and reconnect the cable to the outlet.
Re-connect the connector of the pressure roller thermistor (center) (TH3)
harness.
Replace the pressure roller thermistor (center) (TH3).
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