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3-156 Troubleshooting Analysis Guide (TAGs)
20
Run diagnostic test 010. Use extreme caution:
• Check J/P13-5 to J/P13-2 for 100 Vac while the test is running.
Is the voltage 100 Vac?
No: Go to #22 in this TAG.
Yes: Continue.
21
Run diagnostic test 010. Use extreme caution:
• Check J/P18-1 to J/P18-2 for 100 Vac while the test is running.
Is the voltage 100 Vac?
No: Repair or replace the connectors or wiring from P18-1 to P13-5, P18-2 to P13-2, or both.
Yes: Replace the toner supply motor, then turn to TAG 002: Check & Problem Resolution.
22
Run diagnostic test 010.
• Check TP3-31 for 0 Vdc while the test is running.
Is the voltage 0 Vdc?
No: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
23
Turn the printer off and unplug the power cord.
• Check P40-31 to P12-5 for continuity.
Is there continuity?
No: Repair or replace the connectors or wiring from P40-31 to P12-5.
Yes: Replace the power control #2 board, then turn to TAG 002: Check & Problem Resolu-
tion.
24
Turn the printer off and unplug the power cord.
• Replace the high voltage unit.
• Power-on-reset the printer.
• Run test prints.
Has the problem been resolved?
No: Reinstall the original high voltage unit and continue.
Yes: Turn to TAG 002: Check & Problem Resolution.
25
Turn the printer off and unplug the power cord.
• Replace the main charger terminal assembly.
• Power-on-reset the printer.
• Run test prints.
Has the problem been resolved?
No: Reinstall the original main charger terminal assembly and continue.
Yes: Turn to TAG 800: Prints Blank or With Dark Horizontal Bands.