• Code: C1-16
• Description: High voltage MC color circuit trouble
• Causes: 1) Pin getting away of a harness (MC-CMY-ERR) and breaking (MC PWB Input connector CN1-11pin) 2) High-voltage error circuit (MC-CMYERR) damage 3) 24V fuse meltdown in the high voltage MC PWB
• Remedy: 1) Check connection of the harness.(MC PWB Input connector CN1-11pin) Replace the harness. 2) 3) Check disconnection of the high voltage MC PWB connector./Replace.

• Code: C1-40
• Description: High voltage MC PWB trouble
• Causes: 1) Input harness disconnection in the high voltage MC PWB. 2) Harness (MC-K-ERR, MC-CMY-ERR) pin disconnection (MC PWB input connector CN1- 10pin,CN1-11pin) 3) 24V fuse meltdown in the high voltage MC PWB 4) High voltage error circuit (MC-K-ERR, MC-CMYERR) breakage in the high voltage MC PWB
• Remedy: 1) Check the harness and the connector (MC PWB Input connector CN1) 2) Check or replace the harness.(MC PWB input connector CN1-10pin, CN1-11pin) 3) 4) Replace the MC PWB

• Code: C1-41
• Description: High voltage MC/TC PWB trouble
• Causes: 1) PCU connector (input harness to the high voltage MC PWB and the TC PWB) disconnection. (PCU PWB input CN10) 2) Both input connectors disconnections of the high voltage MC PWB and the high voltage TC PWB.(MC PWB input connector CN1,TC PWB input connector CN1) 3) 24V fuses meltdown in the high voltage MC PWB and the high voltage TC PWB
• Remedy: 1) Check the connections of the connectors to the high voltage MC PWB and the high voltage TC PWB on the PCU PWB or connect these connectors again (PCU PWB input CN10). 2) Check the connectors of the high voltage MC PWB and the high voltage TC PWB and connect these connectors again.(MC PWB input connector CN1,TC PWB input connector CN1) 3) Check or replace the high voltage MC PWB and the high voltage TC PWB

• Code: C4-00
• Description: PTC High-voltage output trouble
• Causes: (1) Abnormality of PTC unit (2) Imperfection insertion of PTC unit (3) PTC unit not inserted (4) Disconnection, abnormality of PTC unit. (Transformer B801 of the high-voltage TC PWB) (5) High voltage TC PWB trouble (6) PCU PWB trouble
• Remedy: (1)Remove and insert PTC unit./Replace. (2) Remove and insert PTC unit. (3) Insert PTC unit. (4) Insert PCT harness. /Replace. (Transformer B801 of the high-voltage TC PWB) (5) Replace the high voltage TC PWB. (6 Replace PCU PWB.

• Code: C4-05
• Description: High-voltage MC Black circuit trouble
• Causes: 1) Pin getting away of a harness (PTC-ERR) and breaking (TC PWB Input connector CN1-4pin) 2) High-voltage error circuit (PTC-ERR) damage
• Remedy: 1) Check connection of the harness.(TC PWB Input connector CN1-4pin) Replace the harness. 2) Check disconnection of the high voltage TC PWB connector./Replace.

• Code: C4-20
• Description: 1st transfer High-voltage output trouble
• Causes: Open circuit of the 1st transfer out put.
• Remedy: 1) Check & Remedy Use SIM8-6 to check the out put of [1TC-K/C/M/Y].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 the PTC unit. --> Remove and insert the PTC unit. --> Replace the PTC unit. (4) Imperfect insertion the PTC unit. --> Remove and insert the PTC unit. (5) Abnormality of the 1TC-K/C/M/Y harness. --> Check 1TC-K/C/M/Y wiring.Replace. (6) Abnormality of the high voltage TC PWB spring contact. --> Check the high voltage TC PWB spring contact. (7) High TC PWB trouble. --> Replace the high TC PWB. (8) PCU PWB trouble. --> Replace the PCU PWB. 2) Check & Remedy Check the operation of the 1ST transfer separation clutch1/2(1TURC_1,1TURC_2). If the clutch or gera do not move smoothly or have noise, (1) Abnormality of 1ST transfer separation clutch. --> Check connection of harness and check the clutch. --> Replace the clutch. (2) Abnormality of 1ST transfer unit. --> Check the 1ST transfer unit. --> Replace the 1ST transfer unit. 3) Check & Remedy Check the operation of OPC Drum. If it is not normal movement, (1) Abnormality of Drum drive motor (DVM_K.DVM_CL). --> Check Drum drive motor (DVM_K,DVM_CL). (2) Abnormality of OPC Drum (K/C/M/Y). --> Check OPC Drum (K/C/M/Y). --> Replace OPC Drum (K/C/M/Y).

• Code: C4-25
• Description: High-voltage 1TC circuit trouble
• Causes: 1) Pin getting away of a harness (1TC-ERR) and breaking (TC PWB Input connector CN1-2pin) 2) High-voltage error circuit (1TC-ERR) damage
• Remedy: 1) Check connection of the harness.(1TC PWB Input connector CN1-2pin) Replace the harness. 2) Check disconnection of the high voltage TC PWB connector./Replace

• Code: C4-30
• Description: 2nd transfer High-voltage output trouble (open)
• Causes: Open circuit of the 2nd transfer out put.
• Remedy: 1) Check & 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 B501 of the high-voltage TC PWB) --> Check 2nd TC harness wiring.Replace. (6) High voltage TC PWB trouble. --> Replace the high voltage TC PWB. (7) PCU PWB trouble. --> Replace the PCU PWB. 2) Check & Remedy Check the operation of the 2nd transfer separation clutch (2TCRC). If the clutch or gera do not move smoothly or have noise, (1) Abnormality of 2nd transfer separation clutch. --> Check connection of harness and check the clutch. --> Replace the clutch. (2) Abnormality of 2nd transfer unit. --> Check the 2nd transfer unit. --> Replace the 2nd transfer unit.