Description: Duplex Fan (D-FAN) Error This error indicates a problem with the duplex fan (D-FAN).
Remedy: Check Connector Ensure connector CN4 is properly connected between the D-FAN and the duplex relay P.W.B. board. Ensure connector duplex CN1 is properly connected to DPCN3 on the duplex DUP P.W.B. board. • Duplex Fan (D-FAN) • DUP P.W.B. Board • Duplex Relay P.W.B. Board If the problem still exists, replace the DFAN motor, if necessary. Then replace the duplex DUP P.W.B. board and the duplex relay P.W.B. board until the problem is resolved.
Code: 984
Description: Duplex Lower Solenoid (DSOL-L) This error indicates a problem with the lower duplex solenoid (DSOL-L).
Remedy: 1 Check Connector Ensure connector, CN3, is connected properly between DSOL and relay P.W.B. board. Ensure connector, CN1, on the relay P.W.B. board is connected properly with D-CN2 on the DUP P.W.B. board. 2 • Duplex Lower Solenoid (DSOL-L) • Duplex P.W.B. Board • Duplex Relay P.W.B. Board If the problem still exists, replace the duplex lower solenoid DSOL. If this does not correct the problem, replace the duplex P.W.B. board and then the duplex relay P.W.B. board until the problem is resolved.
Code: 990
Description: Drum Encoder Sensor (HPSEN) This error indicates a problem with the transfer drum sensor (HPSEN).
Remedy: 1 Transfer Drum Check the OPC belt cartridge for proper installation. The transfer drum should rotate with little resistance. If the transfer drum does not rotate lightly or the encoder plate is damaged, replace the transfer drum. 2 • Transfer Drum Encoder Sensor (HPSEN) • IOD1 P.W.B. Board • Main Engine (MCTL P.W.B.) Board Ensure connectors DCN4 on the IOD1 board and the transfer drum encoder sensor (HPSN) are correctly connected. Check for +5V between DCN4-1 and DCN1-3. • If there is +5V, replace the transfer drum encoder sensor (HPSEN) • Check for +5V between DCN2-1 and DCN2-4. • If the voltage is +5V, replace the IOD1 P.W.B. board. • If the problem still exists, replace the main engine (MCTL P.W.B.) board. 3 Low Voltage Power Supply (LVPS) If there is less than +5V between DCN2-1 and DCN2-4, replace the low voltage power supply (LVPS).
Code: 991
Description: Transfer Roller Cam Clutch (TRCM) Error This error indicates a problem with the transfer Roller cam clutch.
Remedy: 1 Check Connector Ensure connectors ECN8 on the IOD2 P.W.B. board is properly connected to the transfer roller cam clutch (TRCM). Ensure ECN1 on the IOD2 P.W.B. board and 12CN on the main engine (MCTL P.W.B.) board are properly connected. 2 Transfer Roller Cam Clutch (TRCM) Check for +24V between ECN8-4 and ECN2-5 on the IOD2 board. If the voltage is less than +24V, replace the transfer roller cam clutch (TRCM). 3 IOD2 P.W.B. Board Check for +24V between ECN2-5 and ECN2-18 on the IOD2 P.W.B. board. If the voltage is less than +24V, replace the IOD2 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: 992
Description: Drum Cleaner Brush Cam Clutch (FBCM) This error indicates a problem with the drum cleaner brush cam clutch.
Remedy: 1 Check Connector Ensure the drum cleaner brush cam clutch (FBCM) connector and ECN10 on the IOD2 P.W.B. board are properly connected. Ensure ECN1 on the IOD2 P.W.B. board is connected to 11CN on the main engine (MCTL P.W.B.) board. 2 Drum Cleaner Brush Cam Clutch (FBCM) Check for +24V between ECN10-4 and ECN2-5 on the IOD2 P.W.B. board. If the voltage is less than +24V, replace the drum cleaner brush cam clutch. 3 IOD2 P.W.B. Board Check for +24V between ECN1-17 and ECN2-5 on the IOD2 P.W.B. board. If the voltage jumps to +24V, replace the IOD2 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: 993
Description: Cleaner Clutch (FBCL) Error This error indicates a problem with the cleaner clutch (FBCL).
Remedy: 1 Check Connector Ensure ECN11on IOD2 P.W.B. board is properly connected to the cleaner clutch (FBCL). Ensure ECN2 on IOD2 P.W.B. board is properly connected to DCN10 on IOD1 P.W.B. board. Ensure ECN1 on IOD1 is properly connected to 11CN on the main engine (MCTL P.W.B.) board. 2 Cleaner Clutch (FBCL) Check for +24V between ECN11-3 and ECN2-5 on the IOD2 P.W.B. board. If the voltage is less than +24V, replace the cleaner clutch (FBCL). 3 IOD2 P.W.B. Board Check for +24V between ECN2-5 and ECN1-16. If the voltage jumps to +24V, replace the IOD2 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.