Ricoh Pro C7200S Troubleshooting Manual page 116

1.SC Codes
SC No. Level
SC No. Level
SC579- A Sensor 8: Fusing Thermistor (Roller Shaft) disconnected 2
02
When temperatures lower than 50°C are detected continuously for 1055 seconds
or more, SC occurs. (Excluded time: 400 seconds are excluded.)
The monitoring cycle is 100 ms.
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SC No. Level
SC580- D Temperature Decrease Detection: Heating Roller Thermopile
01
Disconnection during paper feed
The thermopile detected -10 degrees less than target temperature after correction
continuously for 150 seconds or longer during or after paper feeding
Removal time: 50 seconds (excludes removal time)
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SC No. Level
SC581- D
01
112
Error Name/Error Condition/Major Cause/Solution

Thermopile disconnected or defective

Thermistor disconnected or defective

Reconnect or replace the Fusing Thermistor (Roller Shaft)
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Replace the fuser unit.
Error Name/Error Condition/Major Cause/Solution
Thermopile disconnected or defective
Thermistor disconnected or defective
Reconnect or replace the Fusing Thermistor (Roller Shaft)
Replace the fuser unit.
Error Name/Error Condition/Major Cause/Solution
Replace the fusing lamp.
Replace the Heating Roller Thermopile.
Replace the Fuser Unit.
Error Name/Error Condition/Major Cause/Solution
Secondary Power Cord Not Connected
The main power cord is connected but the secondary power cord is not
connected.

The secondary power cord is not connected.

Circuit breaker is off.
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Harness broken
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AC drive/IOB defective.
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Turn the machine off and plug in the secondary power cord again.
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Check that the circuit breaker is on. If off, turn it on.
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Replace the harness.
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Replace the AC drive/IOB.