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

Image blank or distorted (ADF—front side of scanned page)
Action
Step 1
Is the separator pad dirty, damaged, or worn?
Step 2
Is the pick roller dirty, damaged, or worn?
Step 3
Are the feed rollers dirty, damaged, or worn?
Step 4
Check the cable connection between the lower ADF scanner module and
J5 on the controller board.
Is the cable properly seated and free from damage?
Step 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?
Yes
Clean separator pad.
Replace if problem
remains. See
"Separator pad
removal" on page
65.
Clean pick roller.
Replace if problem
remains. See
roller removal" on
page
Clean feed rollers.
Replace if problem
remains. See
rollers removal" on
page
Go to step 5.
Replace the Lower ADF
scanner module. See
"Lower ADF scanner
module removal" on
page
Diagnostic information
25
No
Go to step 2.
Go to step 3.
"Pick
60.
Go to step 4.
"Feed
142.
Reconnect or replace
cable.
Replace the controller
board. See
board removal" on
page 109.
131.
4036
"Controller