SC541 A
Fusing thermistor open
The fusing temperature detected by the thermistor remained below 5°C (41°F) for
30 sec.
• Thermistor cable disconnected, broken, defective
• Thermistor defective
SC542 A
Fusing temperature warm-up error
During warm-up after switching on the machine, or after opening and closing the
machine, hot roller did not attain the ready temperature within 5 minutes (the
temperature was detected below 3°C (37.4°F) 5 times within 5 sec.).
• Fusing lamp defective
• Thermistor floating, out of position
• Thermistor cable disconnected, broken
• Fusing thermistor defective
SC543 A
Fusing overheat error 1: Software
A fusing temperature of over 230°C (446°F) was detected for 2 sec.
• PSU defective
• TRIAC short, IOB board defective
• BCU board defective
SC544 A
Fusing overheat error 2: Hardware
The backup circuit detected fusing temperature over 235°C (455°F) for longer than
the time prescribed for high temperature fluctuation.
• TRIAC short, IOB board defective
• PSU board defective
• Fusing unit defective
SC545 A
Fusing lamp overheat error 3
After reaching the ready temperature, the hot roller does not start to rotate and the
fusing lamp stays on at full power for 50 sec.
SC Tables
47
To Next Page
Loading...
