Lexmark Pro5500 Series, Service Manual

Page: 73 / 277

Diagnostic information
2-30
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Vertical banding and other unwanted data (during ADF duplex scan)
Note: Only the Pro5500 model supports duplex scan.
Before starting, check the media route for foreign objects, such as staples, clips, and scraps, in the media path.
Step Check Yes No
1 Turn off the printer by unplugging the power cord.
Wait for 10 seconds, and turn on the printer. Run
the scan/copy job again.
Does the problem remain?
Go to step 2. Problem resolved
2
Check for any stain, dirt, or obstruction in the scan
area on the ADF scan bar.
Check for any stain, dirt, or obstruction in the
flatbed scan area.
Clean the glass with a piece of cloth
Run the scan/copy job again.
Does the problem remain?
Go to step 3. Problem resolved
3 Isolate the problem. Run a test print on the printer.
From the home screen, touch
> Print
Reports > Demonstration Page .
Is there a problem on the print quality?
Check the
horizontal or
vertical prints
and other
unwanted print
marks during a
print job
service check.
See
“Print
quality
check” on
page 2-13
.
Go to step 4.
4 Check the scan/copy setting. Adjust the paper
setting to the size and type of the original
document.
Is the scan/copy setting correct?
Go to step 5. Correct the scan/copy
settings.
5 Check the cable connectors in the interconnect
card for proper connection and damage. Reseat the
cables.
Check for any damage on the interconnect card.
Are the cables and the interconnect card free
from damage?
Go to step 6. Do any of the
following:
• If there are cable
damages, then go
to step 8.
• If the interconnect
card is damaged,
then go to step 9.
6 Check the J45 cable on the system board for proper
connection and damage. Reseat the cable.
Is the J45 cable free from damage?
Go to step7. Go to step 8.