Ricoh MP C6502SP Field Service Manual page 1142

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5. Troubleshooting

Error Name/Error Condition/Major Cause/Solution

Sensor 4: Pressure Roller Center Disconnection

0 degrees or lower was detected for (t1) seconds consecutively.

Number of times: 10 or more

D135 (Japan): 75 (seconds)

D136 (Japan)/D135 (NA): 75 (seconds)

D136 (NA)/D135 (EU)/D136(EU): 75 (seconds)

D137 (Japan): 75 (seconds)

D138 (Japan)/D137 (NA)/D138 (NA)/D137 (EU)/D138 (EU): 75

Monitored at: All times, though SC is not issued when temperature is not

controlled (when in off mode/sleep mode, when a door, excluding the

toner supply door, is open, or when the heater relay is off).

• Thermopile disconnection

• Connecter contact failure

• Replace the thermopile.

• Reconnect the connector.

• Replace the connector.

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