Scan/Fax/Copy Symptoms - Lexmark CX310n Service Manual

Action
Step 6
Check the input option drawer and the following for any damage or
contamination:
•
Top and bottom autoconnector
•
Pass‑through sensors
•
Feed rollers
•
Input option pick assembly (if it can go down every time the paper
input tray is inserted)
Is the option drawer assembly free of damage or contamination?
Step 7
a
Turn off the printer.
b
Remove the printer from the input option trays.
c
Remove the rear shield.
d
Reseat the JOPT1 cable on the system board.
e
Check the JOPT1 cable for any damage.
f
Position the printer to partially hang on the side of a table, and check
the autoconnect/option tray cable for damage.
Is the tray 2 to controller board cable damaged?
Step 8
•
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?

Scan/fax/copy symptoms

Symptom
ADF won't duplex (Duplex ADF only)
ADF skew
Multiple pages feed into ADF
Documents wont feed into ADF
Scanner makes buzzing noise on startup or during a scan.
Document feeds, but jams in ADF.
Black streaks on scans
Blank page
Black page
No dial tone
Yes
Go to step 7.
•
•
Problem resolved.
Action
See "ADF duplex service check" on page
See "ADF feed errors service check" on page
See "Flatbed home position service check" on
page 137.
See "ADF paper jam service check" on page
See "ADF streak service check" on page
See "Black or blank page copy service check" on
page 136.
See "Modem/fax card service check" on page
Diagnostic information
135
No
•
For 550 input
option, replace the
optional 550-sheet
drawer.
•
For 650 input
option, replace the
optional 650-sheet
duo drawer.
Go to step 8.
If the printer
autoconnector is
damaged, then
replace the tray 2 to
controller board
cable.
If the option tray
autoconnector is
damaged, then go
to step 8.
Replace the controller
board. See
board removal" on
page 239.
7527
"Controller
142.
141.
139.
139.
143.