Lexmark X422 Laser MFP Service Manual page 89

Problem
The display indicates Toner Low
attendance message.
Solid black areas on
transparencies or paper contains
white streaks.
Faint images or repetitive spots
appear on the page.
Pages are blank.
The operator panel lights do not
come on when the MFP is turned
on.
The top cover does not close.
Action
• Remove the print cartridge and
gently shake it from side to side to
redistribute the toner.
• Replace the print cartridge.
• Choose a different fill pattern in
your software application.
• Try a different type of paper. Paper
designed for copiers gives the
best quality.
• Remove the print cartridge and
gently shake it from side to side to
redistribute the toner.
• Replace the print cartridge.
• Select a different media type or
form type setting from your MFP
driver.
• Try a different type of paper. Paper
designed for copiers gives the
best quality.
• Replace the print cartridge.
• The print cartridge may be out of
toner or defective. Replace the
cartridge.
• You may have a software error. Try
turning the MFP off and back on.
• Check the photoconductor circuit
for continuity.
• Check the printhead.
• The lights may take a few seconds
to come on.
• Make sure the power cord is firmly
plugged in at the back of the MFP
and at the electrical outlet.
Make sure the print cartridge is
positioned correctly.
Diagnostic information
7001–001
2-51