Name: Ricoh MP C2504
Brand: Ricoh
Rating: 4 (1 reviews)

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SC No. Type Error Name/Error Condition/Major Cause/Solution

SC564-00 A Pressure Roller Thermistor (Center) High Temperature Detection

(Hardware)

Above 240 degrees C detected.

• Paper setting misdetection

• Incorrect paper position in the paper feed tray

• Jammed paper between the center thermopile and fusing unit

• Thermopile lens dirt

• Thermopile modification/float

• Pressure roller HP sensor disconnected

• Harness disconnection between the fusing unit and the BCU or the

PSU (AC controller board)

• Triac defective (short-circuit)

• BCU failure

• AC controller board failure

1. Check the paper settings.

2. Check the paper position in the paper feed tray.

3. Reconnect the connectors (main machine side, BCU side).

4. Remove the jammed paper between the center thermopile and

fusing unit.

5. Clean or replace the thermopile (center).

6. Inspect the pressure roller HP sensor with SP5-803-047.

7. Replace the harness between the fusing unit and the BCU or the PSU

(AC controller board).

8. Replace the BCU.

9. Replace the PSU (AC controller board).

If the problem cannot be solved after performing the above steps,

replace the fusing unit.

Service Call 501-584

843

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Ricoh MP C2504 Specifications

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