Lexmark 5016-001 Printer User Manual


 
Diagnostic Information 2-81
5016-001
All Blank Page Service Check
FRU Action
1 Intermediate
Transfer Unit
(ITM)
An ITM unit may cause an all blank copy. Try a
new ITM if available.
2 Transfer Roller Note: The transfer roll is spring loaded against
the inner cover so that it properly contacts the
transfer belt in the ITM unit.
Check the transfer roll for correct installation. Be
sure the transfer roll rotates freely. Check the
left and right side transfer roll springs and
bushings for any signs of binding or damage.
Replace any parts as necessary.
3 High Voltage
Contacts
Grid Block 1
Grid Block 2
HVPS
Check the high voltage contacts in grid blocks 1
and 2 to ensure they are clean, not bent,
deformed or pitted. If incorrect, replace the
failing grid block assembly.
Be sure the HVPS is correctly and securely
mounted to the HVPS mounting bracket and
grid block assemblies. If correct, remove the
HVPS and be sure the high voltage contacts
align with the contacts on the HVPS. Also look
for signs of pitting or damage.
4 Engine Board
Printhead Cable
Engine Board
Check the cable for proper installation and
continuity.
If the continuity is incorrect, replace the cable.
If correct, replace the engine board.
5 Printhead The printhead may be the cause, but should
only be replaced after a new toner cartridge(s)
or ITM has been replaced.