Description: MC Solenoid Error (MC PSL) This error indicates the magenta/cyan developer switching has a problem.
Remedy: 1 Check Connector Check Cable Harness Ensure the magenta/cyan solenoid connector ECNS on the IOD2 P.W.B. board is connected. Ensure the cable harness for (PSL MC) is not broken. Replace any damaged parts. 2 Developer Solenoid Assembly (PSL KY/MC) Front Cover Unit Check the voltage at (PSL MC) ON-N. Does the voltage drop below +24V between ECN5-7 and ECN2-6? • If the voltage drops below +24V, replace the DE solenoid assembly. • If this does not fix the problem, replace the front cover unit. 3 IOD2 P.W.B. Board Check the voltage between ECN1-6 and ECN2-8. If the voltage jumps to +24V, replace the IOD2 P.W.B. board. 4 Main Engine (MCTL P.W.B.) Boards If the problem still exists, replace the main engine (MCTL P.W.B.) board.
Code: 907
Description: Toner Empty Sensor Error (TPD, TTR) This error indicates the toner empty sensor has a problem.
Remedy: 1 Check Connector Ensure the toner empty sensor (LED) connector is connected correctly to DCN7 on IOD1 P.W.B. board. 2 • Toner Sensor, P.W.B. Board (LED side) • IOD1 P.W.B. Board Check the voltage for (LEDON-N/D) If the voltage jumps to +24V between DCN7-7 and DCN7-9 on the IOD1 P.W.B. board, replace the toner sensor P.W.B. board. If the voltage drops to less than +24V between DCN1-15 and DCN1-41 on the IOD1 P.W.B. board, replace the IOD1 P.W.B. board. 3 Main Engine (MCTL P.W.B.) Board If the error still exists, replace the main engine (MCTL P.W.B.) board.
Code: 910
Description: Developing Motor Error (DM) This error indicates that the developing motor (DM) drive may have a problem.
Remedy: 1 • Toner Cartridge • Developer Gear Unit • Developer Motor If any unusual rotation noise is heard while printing, check the toner cartridge and replace, if necessary. If the noise continues after the toner cartridge is replaced, check the developer gear unit by manually turning the motor. • If any damage to the gears is found, replace the developer gear drive unit. • If the noise continues, replace the developer drive motor (DM). 2 Cable and Connectors If the developer motor does not turn On: • Ensure the connector DCN9 on the IOD1 P.W.B. board and the connector for the developer motor are completely connected. • Ensure connectors DCN1 on the IOD1 and 11CN on the main engine (MCTL P.W.B.) board are completely connected. • Replace any damaged parts. 3 Developer Motor (DM) Check for +24V between DM1-4 and DM1-6 • DCN9-4 and DCN9-6 • DCN10-3 and DCN10-4 Check for +5V between DM1-5 and DM1-9 • DCN9-5 and DCN9-9 • DCN10-7 and DCN-9 If either +24V or +5V is found while checking these connectors, replace the developer motor (DM). 4 • IOD2 P.W.B. Board • IOD1 P.W.B. Board • Main Engine (MCTL P.W.B.) Board If after replacing the developer motor the problem still exists, replace in the following order until the problem is resolved: • IOD2 P.W.B. board • IOD1 P.W.B. board • Main engine (MCTL P.W.B.) board
Code: 911
Description: Main Motor (MM) Error This error indicates a problem with the main motor.
Remedy: 1 OPC Belt Print Cartridge Check the OPC belt cartridge for any rotation. If the main motor (MM) attempts to turn but the OPC belt cartridge does not, replace the OPC belt cartridge. Note: The OPC belt cartridge is a customer order supply. 2 Fuser Unit Check the fuser for any rotation. If the main motor (MM) attempts to turn but the fuser does not, replace the fuser unit. Note: The fuser unit is a customer order supply. 3 If an ‘82 PC Missing’ error is displayed, while diagnosing the main motor (MM), ensure the connector (CN1) on the main motor (MM) and connector ECN12 on the IOD2 P.W.B. board are firmly connected. Ensure the connectors ECN1, ECN2 on the IOD2 P.W.B. board, DCN10 on the IOD1 and 12CN on the main engine (MCTL P.W.B.) board are firmly connected. Replace any damaged part.
Code: 915
Description: Control Fan (CTFAN) Error This error indicates a problem with the control fan (CTFAN).
Remedy: 1 Check Connector Ensure the control cooling fan motor is properly connected to DCN18 on the IOD1 P.W.B. board. Check that DCN1 or the IOD1 P.W.B. board and 11CN on the main engine (MCTL P.W.B.) board are connected. 2 Control Cooling Fan Motor (CTFAN) Check the voltage between DCN18-1 and DCN18-2 on the IOD1 P.W.B. board. If the voltage drops to less than +24V, replace the control cooling fan (CTFAN). 3 IOD1 P.W.B. Board Check the voltage between DCN1-33 and DCN1-44 on the IOD1 P.W.B. board. If the voltage drops to less than +24V, replace the IOD1 P.W.B. board. 4 Main Engine (MCTL P.W.B.) Board If the problem still exists, replace the main engine (MCTL P.W.B.) board.
Code: 916
Description: Ozone Fan (OZFAN) Error This error indicates a problem with the ozone fan (OZFAN).
Remedy: 1 Check Connector Ensure the ozone fan motor connector is properly connected to ECN5 on the IOD2 P.W.B. board. Ensure connectors ECN1 on the IOD2 P.W.B. board and 12CN on the main engine (MCTL P.W.B.) board are properly connected. 2 Ozone Fan Motor (OZFAN) IOD2 P.W.B. Board Check the voltage between ECN3-1 and ECN3-2 on the IOD2 P.W.B. board. If the voltage is +24V, replace the ozone fan (OZFAN). Check the voltage tween ECN1-9 and ECN2-8 on the IOD2 P.W.B. board. If the voltage is less than +24V, replace the IOD2 P.W.B. board. 3 Main Engine (MCTL P.W.B.) Board If the problem still exists, replace the main engine (MCTL P.W.B.) board.