Ricoh PRO C7200X - Image Quality Problem: Full Page; Fainter Leading Edge

1.SC Codes
101
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
 After the operation of overheat prevention mechanism
 Heater broken
 Replace the Heating Roller Thermopile
 Use within the input voltage specification.
 Replace the heater.
 Replace the fuser unit.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC543-
00
A
Overheat detection (software): Heating Roller Thermopile
Heating Roller Thermopile detected a temperature of 237 degrees or higher
continuously for 30 seconds or longer.
Measurement period: 100 milliseconds
 Triac shorted.
 IOB board defective.
 fuser unit controller software runaway
 Replace the IOB board.
 Replace the fuser unit.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC545-
01
SC556-
01
A
Heater lit continuously : Heating Roller Fusing Lamps
The DUTY of heater was equal to the maximum DUTY (excluding 0%) for 115
seconds or more continuously after the heater was turned on during Ready
status/preheating/low-power and the fuser unit stopped.
Excluded time: 140 seconds after reload/paper feed
The time it takes to reach the reload temperature/waiting target temperature at
rated input -25% + heater tolerance is excluded (300 seconds).
 Thermistor deformed or floating
 Heater disconnection
 After the operation of overheat prevention mechanism
 Replace the Heating Roller Thermopile
 Replace the Heating Roller Fusing Lamps.
 Replace the Fuser Unit.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC546-
00
A
Thermistor disconnection: Heating Roller Thermistor
Heating Roller Thermistor detected 0 degree or lower 50 seconds consecutively
after the heater was turned on