Remedy: 1 Check of DRIVE ASSY FEED attachment Is DRIVE ASSY FEED attached correctly? Go to Step [2]. Re-attach, and go to step [2]. 2 Continuity check of HARNESS-ASSY FEED MAIN Disconnect P/J437 from PWBA TRAY CONT. Do all of the wiring below have normal continuity? J437-1 . J440-5 J437-2 . J440-4 J437-4 . J440-2 J437-5 . J440-1 Go to Step [3]. Replace HARNESSASSY FEED MAIN. 3 24 VDC power supply check to DRIVE ASSY FEED The voltage of P440-2 . P440-1 on PWBA FEED DRV is 24 VDC? Go to Step [4]. Go to Step [5]. 4 Check of FEED MOTOR START signal The voltage of P440-5 . P440-1 on PWBA FEED DRV is xx VDC when FEED MOTOR START signal is ON? Replace DRIVE ASSY FEED. Go to Step [10]. 5 24 VDC power supply check to PWBA TRAY 500 The voltage of P435-9/10 . P435-7/8 on PWBA TRAY 500 is 24 VDC? Replace PWBA TRAY 500. Go to Step [6]. 6 Continuity check of HARNESS-ASSY FEED 1 Disconnect P/J435 from PWBA TRAY CONT. Do all of the wiring below have normal continuity? J435-10 . P608-1 (connector on Feeder to be connected to the printer) J435-9 . P608-2 J435-8 . P608-3 J435-7 . P608-4 Go to Step [7]. Replace PWBA TRAY 500. 7 Continuity check of HARNESS ASSY MAIN Disconnect P/J421 from PWBA MCU. Do all of the wiring below have normal continuity? J421-1 . J608-10 (connector on the printer to connect Feeder) J421-2 . J608-9 J421-3 . J608-8 J421-4 . J608-7 Go to Step [8]. Repair broken or shorted part. 8 24 VDC power supply check to PWBA MCU The voltage of P410-5/6 . P410-7/8 on PWBA MCU is 24 VDC? Replace PWBA MCU. Go to Step [9]. 9 Continuity check of HARNESS ASSY MAIN Disconnect P/J410 from PWBA MCU and P/ J502 from LV/HVPS. Do all of the wiring below have normal continuity? J410-5 . J502-5 J410-6 . J502-6 J410-7 . J502-7 J410-8 . J502-8 Replace LV/ HVPS. Repair broken or shorted part.
Code: E998
Description: Engine Communication Error - Acommunication error between the controller and the PWBA MCU via the video I/F occured
Remedy: 1 Check if the firmware version of the PWBA MCU Check the firmware version of the PWBA MCU. Is the version latest ? Go to Step [2]. Update the firmware. 2 Check if the firmware version of the printer controller Check the firmware version of the printer controller Is the version latest ? Go to Step [3]. Update the firmware. 3 Continuity check of FFC-ASSY ESS 1. Disconnect the P/J400 on the PWBA MCU. 2. Disconnect the CN601 on the BOARD ASSY., MAIN 3. Check each wiring for continuity. Do all of the wiring have continuity ? Go to Step [4]. Replace the FFC-ASSY ESS. 4 Replacement of the BOARD ASSY., MAIN Replace the BOARD ASSY., MAIN. Does the error occur ? Replace the PWBA MCU. End of procedure