WorkCentre Pro 423/428 2-72 CHAPTER 2 TROUBLESHOOTING
03/02 2.3 Level 2 Troubleshooting
Internal
Code
Error Description Corrective Action
8C30 XX System, Recognition failure Confirm XX-sys. Check
CONTROL PANEL-MCU/SW
PWB/M/F MAIN PWB connections.
Check M/F Main PWB and ROM.
Replace CONTROL PANEL.
8C31 Resource secure failure Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C32 Timer is already used. Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C33 Timer Table error Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C34 Queuing Event mismatch
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C35 Queuing Event error Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C36 Queuing Event ID error Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C37 XX-Sys response wait timeout Confirm XX-sys. Check
CONTROL PANEL-MCU/SW
PWB/M/F MAIN PWB connections.
Check M/F Main PWB and ROM.
Replace CONTROL PANEL.
8C40 Any other event than job-related ones
was delivered.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C41 VDispNo. registered on Job Manager
Table is incorrect.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C42 Incorrect argument Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C43 No more job-by-job PNLVAR can be
obtained.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C44 Job-by-job PNLVAR can’t be obtained
due to an illegal argument.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C45 The job applicable doesn’t exist on Job
Manager Table.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C46 The job can’t be registered. Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C47 No buffer area for the job Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
Internal
Code
Error Description Corrective Action
8C48 Job type can’t be identified.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C49 Error in restarting a suspended job Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C4A Error in requesting a job to stop
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C4B There exists no job to be restarted
resulting from clearance of interrupt.
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C50 LCD Y coordinate over
Check M/F MAIN PWB and ROM.
Replace CONTROL PANEL.
8C60 MF send error Check CONTROL PANEL-
MCU/SW PWB/M/F MAIN PWB
connections. Check M/F MAIN
PWB and ROM. Replace
CONTROL PANEL.
8C61 MF receive error
Check CONTROL PANEL-
MCU/SW PWB/M/F MAIN PWB
connections. Check M/F MAIN
PWB and ROM. Replace
CONTROL PANEL.
8C62 MF receive buffer full Check CONTROL PANEL-
MCU/SW PWB/M/F MAIN PWB
connections. Check M/F MAIN
PWB and ROM. Replace
CONTROL PANEL.
8C63 MF receive frame length is over.
Check CONTROL PANEL-
MCU/SW PWB/M/F MAIN PWB
connections. Check M/F MAIN
PWB and ROM. Replace
CONTROL PANEL.
8C64 MF Interface Frame doesn’t exist. Check CONTROL PANEL-
MCU/SW PWB/M/F MAIN PWB
connections. Check M/F MAIN
PWB and ROM. Replace
CONTROL PANEL.
8C65 MF Interface Frame length is over. Check CONTROL PANEL-
MCU/SW PWB/M/F MAIN PWB
connections. Check M/F MAIN
PWB and ROM. Replace
CONTROL PANEL.
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