Gapping or half color page check
 
Diagnostics and troubleshooting
 
43
 
Step 1 
Make sure all the packing materials on the imaging unit are 
removed.
 
 
Does the problem remain?
 
Step 2
 
a
 
Reseat the cyan, magenta, and yellow developer units in the 
imaging kit.
 
b
 
Reseat the imaging kit.
 
c
 
Enter the Diagnostics menu, and then navigate to:
 
Advanced Print Quality Samples 
> 
Advanced Print Quality 
Samples
 
d
 
Check the test page.
 
 
Does the problem remain?
 
Step 3
 
Check the developer hold down arms and springs for damage, and 
replace if necessary. See 
“Developer hold down removal” on 
page 401
.
 
 
Does the problem remain?
 
Step 13
 
Replace the cable.
 
 
Does the problem remain?
 
Step 14
 
Replace the printhead. See 
“Printhead removal” on page 397
.
 
 
Does the problem remain?
 
Step 15
 
Replace the controller board. See 
“Controller board removal” on 
page 393
.
 
 
Does the problem remain?
 
Contact the next 
level of support.