Ricoh SH-P1 M020, Field Service Manual

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543 A
Fusing overheat error - software1 • Defective Triac
• Defective IOB
• Defective engine board
The detected temperature stays at
235°C for 1 second, and this
consecutively occurs 10 times.
• Replace the Controller board.
• This SC cannot be reset by turning the
power off and on.
• This SP should be reset by a CE.
• SP5810-01 can reset this SC.
544 A
Fusing overheat error - Hard 1 • Defective Triac
• Defective IOB
• Defective engine board
• Fusing control error
The thermistor detects over 250
o
C.
• Replace the Controller board.
• This SC cannot be reset by turning the
power off and on.
• This SP should be reset by a CE.
• SP5810-01 can reset this SC.
545 A
Fusing lamp remains on 1 • Fusing thermistor defective
• Defective fusing lamp
• Thermostat actuation
The fusing lamps remained ON at full
capacity for more than 12 seconds
after the fusing temperature attains
reload temperature.
• Replace the fusing thermistor.
• Replace the fusing lamp.
• Replace the thermostat.
• This SC cannot be reset by turning the
power off and on.
• This SP should be reset by a CE.
• SP5810-01 can reset this SC.
6. Troubleshooting
252
6
SC545
RTB 25