Image Quality; Faint Print (Low Contrast) - Lexmark X850e Service Manual

Image Quality

Faint print (Low contrast)

Leading edge
Trailing edge
Before starting, check the media route for foreign objects, such as staples, clips, and scraps, in the media path.
Step
1 Check the media condition.
Load new, dry, recommended media, and perform a print
test.
Is the image density normal?
2 Check the toner cartridge.
Install a new toner cartridge.
Re-print the defective image.
Is the image density normal?
3 Check the transfer roll assembly.
Remove the transfer roll assembly.
Check the transfer roll assembly for contamination and
wear.
Is the transfer roll assembly free of excess wear and
contamination?
4 Check the PC cartridge installation.
Remove the PC cartridge.
Check the PC cartridge connections.
Are the PC cartridge connections free of excess wear
and contamination?
5 Check the drum grounding plate.
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?
Check Yes
Problem solved. Go to step 2.
Problem solved. Go to step 3.
Go to step 4. Replace the
transfer roll
assembly.
Go to step 5. Correct and
clean
contaminated
pins, or replace
the PC cartridge
or connector.
Go to step 6. Correct and
clean the drum
grounding plate,
or replace the
PC cartridge.
Diagnostic information
7500-XXX
No
2-209