TAG 044: Charge Corona/Transfer Corona Circuit Open
June 1999 Troubleshooting Analysis Guide (TAGs) 3-59
No:
Replace the upper paper guide assembly, then turn to TAG 002: Check & Problem Reso-
lution.
Yes: Go to #13 in this TAG.
11
Turn the printer off and unplug the power cord.
• Disconnect the charge corona lead from the high voltage unit.
• Check for continuity the charge corona lead terminal assembly’s lower contact to the lead
removed from the high voltage unit.
Is there continuity?
No: Repair or replace the charge corona lead or the charge corona terminal assembly, then
turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
12
Remove the cleaner unit.
• Disconnect J/P85.
• Check for continuity between the connector for the charge corona terminal assembly’s upper
contact and J/P85-10 at the high voltage unit.
Is there continuity?
No: Repair or replace the connectors or wiring, then turn to TAG 002: Check & Problem Res-
olution.
Yes: Continue.
13
Disconnect J/P41 and J/P23.
• Check P41-35 to P23-5 for continuity.
Is there continuity?
No: Repair or replace the connectors or wiring from P41-35 to P23-5, then turn to TAG 002:
Check & Problem Resolution.
Yes: Continue.
14
Check P41-39 to P23-1 for continuity.
Is there continuity?
No: Repair or replace the connectors or wiring from P41-39 to P23-1, then turn to TAG 002:
Check & Problem Resolution.
Yes: Continue.
15
Reconnect the power.
• Turn the printer on.
• Check J/P41-35 for +24 Vdc.
Is the voltage +24 Vdc?
No: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
Yes: Determine whether the high voltage unit or the charge corona terminal assembly is at
fault, replace the faulty unit, then turn to TAG 002: Check & Problem Resolution.
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