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3-36 Troubleshooting Analysis Guide (TAGs)
8
Check the paper path for jams.
• Open the printer’s front cover and insert the interlock bypass tool.
• Power-on-reset the printer.
• Run test prints.
• Watch the end of the paper timing roller shaft.
Does the paper timing roller shaft turn?
No: Continue.
Yes: Go to #14 in this TAG.
9
Check TP3-11 for +24 Vdc.
Is the voltage +24 Vdc?
No: Continue.
Yes: Go to #12 in this TAG.
10
Check J/P91-1 for +24 Vdc.
Is the voltage +24 Vdc?
No: Continue.
Yes: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
11
Check J/P8-13 for +24 Vdc.
Is the voltage +24 Vdc?
No: Replace the DC power supply unit, then turn to TAG 002: Check & Problem Resolution.
Yes: Repair or replace the connectors or wiring from P91-1 to P8-13, then turn to TAG 002:
Check & Problem Resolution.
12
Run diagnostic test 006, testing the paper timing roller clutch.
• Check TP3-7 for a voltage change from +24 Vdc to 0 Vdc.
Does the voltage change from +24 Vdc to 0 Vdc?
No: Continue.
Yes: Go to #14 in this TAG.
13
Turn off the printer and unplug the power cord.
• Disconnect J/P40 and J/P65.
• Check P40-7 to J65-2 and P40-11 to J65-1 for continuity.
Is there continuity on both?
No: Repair or replace the connectors and wiring from: P40-7 to J65-2 or P40-11 to J65-1.
Then turn to TAG 002: Check & Problem Resolution.
Yes: Replace the paper timing roller assembly, then turn to TAG 002: Check & Problem Reso-
lution.