• Code: C4-30
• Description: 2nd transfer output open trouble
• Causes: Open circuit of the 2nd transfer out put.
• Remedy: Use SIM8-6 to check the out put of [2TC]. If the leakage noise or the flickering on the screen of the panel is detected; (1) Abnormality of 1ST transfer unit. --> Remove and insert the 1ST transfer unit. --> Replace the 1ST transfer unit. (2) Imperfect insertion the 1ST transfer unit. --> Remove and insert the 1ST transfer unit. (3) Abnormality of 2nd transfer unit. --> Remove and insert the 2nd transfer unit. --> Replace the 2ST transfer unit. (4) Imperfect insertion the 2nd transfer unit. --> Remove and insert the 2nd transfer unit. (5) Abnormality of the 2nd TC harness. (Transformer T102 of the high-voltage 2TC PWB) --> Check 2nd TC harness wiring.Replace. (6) High voltage 2TC PWB trouble. --> Replace the high voltage 2TC PWB. (7) PCU PWB trouble. --> Replace the PCU PWB.

• Code: C4-31
• Description: 2nd transfer output short trouble
• Causes: 1) Abnormality of 1st transfer unit, 2nd transfer unit. 2) Imperfect insertion the 1st transfer unit, 2nd transfer unit. 3) High voltage 2TC PWB trouble.
• Remedy: Use SIM8-6 to check the out put of [2TC]. 1) Check the 1st transfer unit, 2nd transfer unit. Replace the 1st transfer unit, 2nd transfer unit. 2) Remove and insert the 1st transfer unit, 2nd transfer unit. 3) Replace the high voltage 2nd PWB.

• Code: C4-31
• Description: 2nd transfer output short trouble
• Causes: 1) Abnormality of 1st transfer unit, 2nd transfer unit. 2) Imperfect insertion the 1st transfer unit, 2nd transfer unit. 3) High voltage 2TC PWB trouble.
• Remedy: Use SIM8-6 to check the out put of [2TC]. 1) Check the 1st transfer unit, 2nd transfer unit. Replace the 1st transfer unit, 2nd transfer unit. 2) Remove and insert the 1st transfer unit, 2nd transfer unit. 3) Replace the high voltage 2nd PWB.

• Code: C4-35
• Description: High voltage 2TC PWB trouble
• Causes: 1) Input harness disconnection in the high voltage 2TC PWB CN1 2) Harness (2TC-ERR, PTC-ERR) pin disconnection (connector CN1-1,7,8pin, or PCU PWB connector CN12-24,26,38pin) 3) 24V fuse meltdown 4) High voltage error circuit(2TC-ERR, PTC-ERR) breakage 5) Connector CN12 disconnection on the PCU PWB 6) PCU PWB trouble
• Remedy: 1) Check the harness and connector CN1 2) Check or replace the harness 2TC PWB input connector CN1-1,7,8pin, or PCU PWB input connector CN12-24,26,38pin 3) 4)Replace the high voltage 2TC PWB 5) Check the connector CN12 on the PCU PWB 6) Replace PCU PWB

• Code: E6-10
• Description: Shading error (Black correction)
• Causes: Installation error of the CCD unit harness. CCD unit trouble. DSPF PWB trouble
• Remedy: Check the installing state of the harness to the CCD unit. Check the CCD unit. Check the DSPF PWB.

• Code: E6-11
• Description: Shading error (White correction)
• Causes: Installation error of the CCD unit harness. Copy lamp lighting trouble. Dirt on the mirror, the lens, or the reference white plate. CCD unit trouble. DSPF PWB trouble. Shading SIM not executed / Shading ROM abnormality.
• Remedy: Check the installing state of the harness the CCD unit. Check the installing state of the harness to the copy lamp unit. Clean the mirror, the lens, or the reference white plate. Check the CCD unit. Check the DSPF PWB.

• Code: E6-14
• Description: CCD-ASIC error
• Causes: DSPF PWB trouble.
• Remedy: Check the DSPF PWB.

• Code: E7-01
• Description: MFP image data error
• Causes: Image data transfer error in the MFPC PWB. MFPC PWB trouble.
• Remedy: Check connection of the connector and the harness of the MFPC PWB. Check or replace the MFPC PWB.