SC
[Level]
Symptom
Possible Cause/Required Action
543
[A]
High temperature detection: Software
The thermistor detects 230°C
for 0.2 seconds.
• Defective thermistor
• Defective I/O board
• Defective EGB
544
[A]
High temperature detection: Hard
The thermistor detects 250°C.
• Defective thermistor
• Defective I/O board
• Defective EGB
• Defective fusing unit, PSU, or EGB
1. Replace the fusing unit.
2. Replace the PSU.
545
[A]
Heating lamp error
The fusing lamp is full-
powered for 8 seconds after
the heating roller reaches the
print ready temperature.
• Deformed thermistor
• Thermistor coming off
• Defective fusing lamp
547
[D]
Zero cross error
• The zero cross signal is
detected three times even
though the heater relay is
off when turning on the
main power.
• The zero cross signal is
not detected for three
seconds even though the
heater relay is on after
turning on the main
power or closing the front
door.
• The detection error
occurs twice or more in
the ten zero cross signal
• Defective fusing lamp relay
• Defective fusing lamp relay circuit
• Unstable power supply
1. Check the power supply source.
2. Replace the PSU.
4. Troubleshooting
108
4
Summary of Contents for G-P3
Page 1: ...Model G P3 Machine Code G190 SERVICE MANUAL January 2008 Subject to change...
Page 11: ...10...
Page 77: ...11 Harness guide C x 2 12 Drive unit D x 6 x 16 3 Replacement and Adjustment 76 3...
Page 91: ...3 Replacement and Adjustment 90 3...
Page 137: ...LEDs No LEDs are used for this model except for the Network Interface 4 Troubleshooting 136 4...
Page 337: ...5 Service Tables 336 5...
Page 411: ...MEMO 410...
Page 412: ...MEMO 411...
Page 413: ...MEMO 412...