OKI MPS5502mb

• Code: C383
• Description: Toner sensor detection error. (C383=K) This error does not occur with the default settings.
• Causes: Is the toner cartridge installed? Is the lock lever of the toner set? Does this error recur?
• Remedy: Install the toner cartridge. Rotate the lock lever of toner to the lock position. Turn on the power again. Replace the toner sensor assembly.

• Code: C41A, C41B
• Description: Short-circuit or opencircuit of fuser thermistor is detected.
• Causes: Does this error recur?
• Remedy: Turn on the power again. Replace the fuser unit.

• Code: C41C
• Description: The backup roller thermistor is detected of its short-circuit. (At high temperature)
• Causes: Does this error recur?
• Remedy: Turn on the power again. Replace the fuser unit.

• Code: C41D
• Description: The backup roller thermistor is detected of its opencircuit. (At low temperature)
• Causes: Does this error recur?
• Remedy: Turn on the power again. Replace the fuser unit.

• Code: C41E
• Description: Compensation Thermistor Error
• Causes: Is the error message displayed? Does this error recur?
• Remedy: Turn on the power again. After leaving a printer for 30 minutes, turn on the power again.

• Code: C449, C446
• Description: The fuser thermistor has detected an abnormal temperature (high temperature or low temperature.)
• Causes: Does this error recur?
• Remedy: Turn on the power again. Replace the fuser unit. Replace the low voltage power supply unit.