Dell 2130cn Service Manual page 346

Step
Checking the PHD ASSY for connection
Remove the PHD ASSY.
Are five HV terminals on the PHD ASSY, and five springs on
the frame (PL4.1.10 and PL4.1.15 to 18) dirty and/or
deformed?
11
Checking after reseating the PHD ASSY
12 Reseat the PHD ASSY.
Is the image printed correctly?
Checking the laser beam windows of the ROS ASSY
Are the laser beam windows on the ROS ASSY clean?
13
Checking the laser beam path
Are there any foreign substances between the ROS ASSY
and PHD ASSY?
14
Check
1 - 320
Chapter 1 Troubleshooting
Remedy
Yes
Clean and/or
replace the PHD
ASSY or Go to step 12.
SPRING(s), then
go to step 12.
End of work. Go to step 13.
Clean the
window(s) with
Go to step 14.
soft cloth or cotton
swab gently.
Remove the
foreign Go to step 15.
substances.
No