Image Blank Or Distorted (Adf-Front Side Of Scanned Page) - Lexmark 6500e Service Manual

4036-310, -311

Image blank or distorted (ADF-front side of scanned page)

Step Action and Question
1 Is the separator pad dirty, damaged
or worn?
2 Is the pick roller dirty, damaged or
worn?
3 Are the feed rollers dirty, damaged
or worn?
Check the cable connection
4
between the lower ADF scanner
module and J5 on the controller
board. Is the cable properly seated
and free from damage?
5 Check the following voltages on J5
of the Controller Board:
J5-1 GND
J5-4 GND
J5-7 GND
J5-10 GND
J5-13 GND
J5-16 GND
J5-18 GND
J5-26 GND
J5-27 +24V
J5-28 +24V
J5-30 GND
J5-31 GND
J5-32 GND
Do the measurements on the
controller board match the above
values?
2-10
Service Manual
Yes
Clean separator pad. Replace
if problem remains. See
"Separator pad removal" on
page 4-8
Clean pick roller. Replace if
problem remains. See "Pick
roller removal" on page 4-3.
Clean feed rollers. Replace if
problem remains. See "Feed
rollers removal" on
page 4-88.
Go to step 5.
Replace the Lower ADF
scanner module. See "Lower
ADF scanner module
removal" on page 4-78.
No
Go to step 2.
Go to step 3.
Go to step 4.
Reconnect or replace
cable
Replace the controller
board. See "Controller
board removal" on
page 4-58.
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