• Code: 508
• Description: Cutter Error The left and right cutter HP sensors remained on or off more than 2 sec.
• Causes: • HP sensors on the left and right side loose, disconnected, defective • Cutter motor harness damaged, defective • HP sensors defective • Cutter motor defective Note: Paper can be fed from the bypass table if the roll feeder or paper cassette is not operationg.
• Remedy:

• Code: 520
• Description: Main Motor Error After the motor started, the main motor lock signal remained HIGH for 5 sec.
• Causes: • Physical obstruction blocking motor • Motor harness damaged, defective • Motor defective
• Remedy:

• Code: 521
• Description: Drum Motor Error After the motor started, the drum motor lock signal remained HIGH for 5 sec.
• Causes: • Physical obstruction blocking motor • Motor harness damaged, defective • Motor defective
• Remedy:

• Code: 522
• Description: Fusing Unit Drive Motor Error. After the motor started, the fusing motor lock signal remained HIGH for 5 sec.
• Causes: • Physical obstruction blocking motor • Motor harness damaged, defective • Motor defective
• Remedy:

• Code: 530
• Description: Fusing Unit Ventilation Fan Error After the motor started, the fan motor lock signal remained HIGH for 5 sec.
• Causes: • Physical obstruction blocking motor • Motor harness damaged, defective • Motor defective
• Remedy:

• Code: 541
• Description: Fusing Thermistor Errors The thermistor measured the hot roller temperature every 1 sec. for 30 sec. and the temperature remained below 5C (54F).
• Causes: • Thermistor positioned incorrectly • Thermistor cable loose, disconnected, damaged • Thermistor defective
• Remedy:

• Code: 542
• Description: Fusing Temperature Warm-up Error The hot roller did not reach the ready temperature within 4 min. 30 sec. after power on. -or- After 5 sec. and 5 rotations of the hot roller, the machine detected that the temperature rise was less than 3oC .
• Causes: • Fusing lamp connections loose, broken, defective • Fusing lamp defective • Thermistor not touching the hot roller • Thermistor defective • MCU defective
• Remedy: The ready temperature is determined by the state of the machine at recovery: • Ready Temp. = Target Fusing Temp. (if power on or recovery starts when the hot roller is 80°C or higher). • Ready Temp. = Target Fusing Temp. – 10°C (SP1105-1 default) if power on or recovery starts when the hot roller is less that 80°C. • Ready Temp. = Target Fusing Temp. – 20°C (SP1937-3 default) if power on or recovery starts with pressure roller inching control on.

• Code: 543
• Description: Fusing Lamp Temperature: Error 1 (Software Detection). The circuit on the MCU that monitors the temperature of the board detected a fusing temperature of 230oC (446oF) for longer than 2 sec.
• Causes: • MCU defective
• Remedy: