Lexmark CX310 Service Manual page 178

Action
Step 9
•
For 550 input option, replace the optional 550-sheet drawer.
•
For 650 input option, replace the optional 650-sheet duo drawer.
Does this fix the problem?
Step 10
a
Turn off the printer.
b
Remove the rear cover. See
c
Disconnect the cable at JOPT1 on the controller board.
d
Turn the printer on.
e
Measure the voltages below:
JOPT1:
• Pin 2: Ground
• Pin 3: Ground
• Pin 5: +24 V dc
• Pin 6: Ground
•
Pin 7: +5 V dc
•
Pin 9: Ground
•
Pin 10: Ground
Are the voltages correct?
Tray 2 or tray 3 empty service check
Action
Step 1
a
Add media on the paper tray.
b
Properly set the paper restraints on the paper tray.
c
POR the printer.
d
Reseat the input option tray from the printer.
e
Refer to the media specifications and check the condition of the media.
f
Make sure the media is free from damage and defects.
Does the error remain?
Step 2
Is the machine using both 650 and 550 input option tray?
Yes
Problem resolved.
Contact your next level
of support.
Yes
Go to step 2.
Go to step 3.
Diagnostic information
178
7527
No
Go to step 10.
Replace the controller
board. See "Controller
board removal" on
page 309.
No
Problem resolved.
Go to step 4.