Action Yes No
Step 3
Check the charge roll electrical contact for damage, and if
necessary, replace the charge roll assembly. Go to
“Charge roll
assembly removal” on page 297.
Does the problem remain?
Go to step 4. Problem is solved.
Step 4
Check the HVPS for proper installation, and if necessary, reinstall
the HVPS properly.
Does the problem remain?
Go to step 5. Problem is solved.
Step 5
Check the high voltage metal contacts between the imaging unit
and the HVPS for damage. If necessary, repair or replace the
contacts.
Does the problem remain?
Go to step 6. Problem is solved.
Step 6
Check with a voltmeter if the electrical resistance of the high
voltage metal contacts between the imaging unit and the HVPS is
less than 1 ohm?
Does the problem remain?
Go to step 7. Problem is solved.
Step 7
Check the high voltage metal contacts between the imaging unit
and the HVPS for contamination by toner or dust. If necessary,
clean or replace the contacts.
Does the problem remain?
Go to step 8. Problem is solved.
Step 8
Check the high voltage contacts on the imaging unit for damage,
and if necessary, replace the imaging unit.
Does the problem remain?
Go to step 9. Problem is solved.
Step 9
Check the cable connections between the HVPS and the system
card, and if necessary, reconnect or replace the cables.
Does the problem remain?
Go to step 10. Problem is solved.
Step 10
Check the HVPS for damage, and if necessary, replace the HVPS.
Go to
“HVPS card assembly removal” on page 288.
Does the problem remain?
Go to step 11. Problem is solved.
4062
Diagnostic information
43
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