Missing Color Check - Lexmark CS720 Service Manual

Action
Step 5
Remove the imaging kit, and then reseat the developer unit of the
affected color.
Does the problem remain?
Step 6
Check the HVPS cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Step 7
•
If the affected color is cyan, magenta, or yellow, then replace
the developer unit of the affected color.
•
If the affected color is black, then replace the imaging unit.
Does the problem remain?
Step 8
Replace the imaging kit.
Does the problem remain?
Step 9
Replace the HVPS. See
Does the problem remain?
Step 10
Replace the controller board. See
page 357.
Does the problem remain?

Missing color check

Action
Step 1
a
Reseat the imaging kit.
b
Enter the Diagnostics menu, and then navigate to:
Advanced Print Quality Samples > Advanced Print Quality
Samples
c
Check the test page.
Does the problem remain?
"HVPS removal" on page
"Controller board removal" on
Diagnostic information
Yes
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
Go to step 10.
319.
Contact the next
level of support.
Yes
Go to step 2.
53
5028
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
No
The problem is
solved.