• Print a menu settings page. Be sure to keep the original menu settings page to restore the customer’s
custom settings if needed.
• Verify on the menu settings page if the following are set to their default values:
– Print resolution: 600 dpi
– Toner darkness: 8
• Check the transfer roll for damage. Replace if damaged.
• Check the toner cartridge and imaging unit for damage. Replace if damaged.
• Print the print quality pages to see if the problem remains. Use Tray 1 to test print quality problems.
• Print a print quality test page, and then look for variations in the print from what is expected. Verify if the
settings under EP Setup are set to their default values. See
“EP Defaults” on page 215.
• Check to ensure the correct printer driver for the installed software is being used. An incorrect printer
driver for the installed software can cause problems. Incorrect characters could print, and the copy may
not fit the page correctly.
Gray background or toner fog check
ABCDE
ABCDE
ABCDE
Leading edge
Trailing edge
Actions Yes No
Step 1
Check the cartridge plunger.
Is the cartridge plunger properly attached to the front door, and is
the spring functioning properly?
Go to step 2. Replace the
cartridge plunger.
See
“Cartridge
plunger removal”
on page 293.
Step 2
Remove any contamination from the CTLS contacts. Perform a print
test.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Check the CTLS for damage.
Is it free of damage?
Go to step 4. Replace the printer.
Step 4
Check the transfer roll for surface contamination or excessive wear.
Is it free of contamination and wear?
Go to step 5. Replace the transfer
roll. See
“Transfer
roll removal” on
page 292.
7016
Diagnostic information
44
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