Horizontal colored lines or banding check
Diagnostics and troubleshooting
45
Step 1
a
Enter the Diagnostics menu, and then navigate to:
Advanced Print Quality Samples
>
Advanced Print Quality
Samples
b
Check the test page for lines.
Are the lines white?
Step 2
Perform the repeating defects check. See
“Repeating defects
check” on page 62
.
Does the problem remain?
Step 6
Remove the imaging kit, and then clean the printhead lenses. See
“Cleaning the printhead lenses” on page 451
.
Does the problem remain?
Step 7
Replace the motor (EP drive). See
“Motor (EP drive) removal” on
page 333
.
Does the problem remain?
Step 8
Replace the printhead. See
“Printhead removal” on page 397
.
Does the problem remain?
Step 9
Replace the controller board. See
“Controller board removal” on
page 393
.
Does the problem remain?
Contact the next
level of support.