Blank Print (No Print) - Lexmark X850e Service Manual

Blank print (no print)

Check the media path for foreign objects such as staples, clips, scraps of media.
Step
1 Check the toner cartridge.
Install a new toner cartridge.
Re-print the defective image.
Is the image density normal?
2 Check the transfer roll assembly.
Remove the transfer roll assembly.
Check the transfer roll assembly rotation.
Is the transfer roll assembly free of excess wear and
contamination?
3 Check the PC cartridge installation condition.
Remove the PC cartridge.
Check the PC cartridge connections.
Are the PC cartridge connections free of excess wear
and contamination?
4 Check the PC cartridge ground.
Remove the PC cartridge.
Check the drum grounding plate, located behind the
rear motor cover. This plate can be found behind the
flywheel.
Is the drum grounding plate free of excess wear and
contamination?
5 Check the laser beam route.
Check for debris between the printhead assembly and
the PC drum.
Check the printhead assembly window for
contamination.
Is the laser beam route free of debris and the glass
window, in the printhead assembly, free of
contamination?
Check Yes
Problem solved. Go to step 2.
Go to step 3. Replace the
transfer roll
assembly.
Go to step 4. Correct and
clean
contaminated
pins, or replace
the PC cartridge
or connector.
Go to step 5. Correct and
clean the drum
grounding plate,
or replace the
PC cartridge.
Go to step 6. Remove debris
or clean the
printhead
assembly
window.
Diagnostic information
7500-XXX
No
2-211