

Action
Yes
No
Step 1
a
From the home screen, touch
Settings
>
>
Quality
.
b
Adjust the toner darkness.
c
Print the document.
Does gray background still appear on prints?
Go to step 2.
The problem is
solved.
Step 2
a
From the home screen, touch
Settings
>
>
Quality
>
Advanced Imaging
>
Color Adjust
.
b
Start the process.
c
Print the document.
Does gray background still appear on prints?
Go to step 3.
The problem is
solved.
Step 3
a
Remove, and then reinstall the imaging unit or imaging kit.
Warning—Potential Damage:
Do not expose the imaging unit
or imaging kit to direct light for more than 10 minutes.
Extended exposure to light may cause print quality problems.
Warning—Potential Damage:
To avoid damage, do not touch
the underside of the imaging unit or imaging kit.
b
Print the document.
Does gray background still appear on prints?
Contact
.
The problem is
solved.
Horizontal dark lines
ABCDE
ABCDE
ABCDE
Note:
If horizontal dark lines keep appearing on your prints, then see the “Repeating defects” topic.
Action
Yes
No
Step 1
a
Depending on your operating system, specify the tray or feeder
from the Printing Preferences or Print dialog.
b
Resend the print job.
Do horizontal dark lines still appear on prints?
Go to step 2.
The problem is
solved.
Troubleshooting
101