Gray background
Possible cause Solution
1 The media does not meet specifications or is not
stored correctly.
1 Turn over the stack of media in the tray. Also try
rotating the media 180 degrees.
2 Check the media type and quality. Replace the
media if it does not meet specifications, and
advise the customer to use the HP-
recommended media and to store it correctly.
See
Printing and paper-storage environment.
2 The operating environment does not meet
specifications.
Make sure that the MFP is installed in an area that
meets the environmental specifications. See
Environmental specifications.
3 The customer is printing on the envelope seams.
(Printing on an envelope seam can cause a
background-scatter problem.)
Move the text to an area that has no seams.
4 The inside of the MFP is dirty (toner leaked out of the
print cartridge).
Clean the inside of the MFP (see Cleaning the MFP).
Install a new print cartridge.
5 The problem occurs during copying. In the CONFIGURE DEVICE menu, open the
ENHANCEMENT submenu, and adjust the
BACKGROUND REMOVAL setting.
6 The toner-density setting is wrong. Open the print-quality menu at the control panel and
adjust the toner-density setting. Make sure that
EconoMode is off.
7 The high-transfer setting is turned off. Open the print-quality menu at the control panel.
Select OPTIMIZE and set HIGH TRANSFER=ON.
8 The print cartridge is defective. Replace the print cartridge.
9 The high-voltage connector springs are dirty or
damaged.
The high-voltage connector springs protrude into the
print cartridge cavity. Clean the springs if they are
dirty. Replace the springs if they are damaged or
missing.
10 The engine power supply is defective. Replace the engine power supply. See Engine power
supply.
374 7 Troubleshooting
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