4. Troubleshooting
46900
5/7
46900
Error message: Main
No. 06921
PCB error.
Error message release
NO
Condition
Check Point
Diagnosis
NOTE
• To access the wiring diagrams, click Wiring diagrams in Bookmarks.
Condition
When turning on the power supply or upgrading the program version, each CPU judged that the PCB was abnormal.
Suffix number (bit) PCB
00001 Printer control PCB
00008 Processor control PCB
00512 Laser control PCB
1 Reset the power supply.
Failed part Manual No.
ARCNET cable
• This error may occur if the ARCNET communication status is abnormal.
• Check the ARCNET communication status on the Version Check display.
☞35500
• Check the ARCNET communication path.
☞50520
• For details about the diagnosis of ARCNET communication error, see ☞35940.
Printer control PCB
☞66000
Processor control PCB ☞66200
Laser control PCB ☞66010
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