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Diagnostic Information 2-75
5055-01x
Missing Colors
Possible Cause Action
Toner Cartridge Unit Be sure the toner cartridge and the
PC drum unit are properly seated.
Be sure the contacts on the print unit
are clean. Be sure the print unit is
installed in the correct position. Run
a print test.
If the problem remains, switch the
print unit with another color and run
a test print. If the new color prints,
replace the failing toner cartridge.
High Voltage Unit If the problem remains, check the
connector on the high voltage unit.
Replace the high voltage unit If the
problem remains.
LED Printhead Unit Replace the printhead and EPROM
If the problem remains.
LED Printhead Controller Board If the problem remains, replace the
printhead controller board.
High Voltage Unit (HVU) If the problem remains, replace the
high voltage unit.
Transfer Belt Unit If the problem remains, replace the
transfer belt unit.
Service.bk Page 75 Thursday, October 4, 2001 12:20 PM