Lexmark CX310n Service Manual page 90

Step 3
Remove the left cover assembly. See
page 219
Check the cables connected to the cartridge motor assembly.
Is the cable connected properly?
Step 4
Replace the EP drive assembly. See
page 245.
Does the problem remain?
Check
"Left cover assembly removal" on
"EP drive assembly removal" on
Diagnostic information
90
Yes
Go to step 4. Reseat the cable.
Replace the controller Problem solved.
board. See "Controller
board removal" on
page 239.
7527
No