Sensor (Multifeed Detect) Detected Multiple Sheets Service Check; Adf And Scanner Error Messages (84X) - Lexmark MX81 Series Service Manual

Sensor (multifeed detect) detected multiple sheets service check

Action
Step 1
Check the original document condition.
Is the original document free of paper clips and staples as well as damage
such as creases, tears, holes or excessive wear?
Step 2
Check the media path for contaminates.
Is the media path free of excess media dust and foreign objects such as
paper clips and staples?
Step 3
Check the ADF feed belt for wear or gear damage.
Is the ADF feed belt assembly free of excess wear or gear damage?
Step 4
Check for correct installation of the torque limiting clutch and separator
roller.
Are the above components properly installed?
Step 5
Check the ADF separator roller for wear.
Is the ADF separator roller assembly free of excess wear?
Step 6
Perform an ADF test.
Does the problem remain?

ADF and scanner error messages (84x)

User attendance messages
Error code Description
840.01 The end user has manually disabled the
flatbed scanner and ADF.
840.02 The controller has automatically disabled
the flatbed scanner and ADF after two
consecutive hardware failures.
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Replace the sensor
(multifeed detect). See
"Multifeed sensor
parts kit removal" on
page
Action
Enter Configuration mode to enable the scanner and determine
if additional errors have occurred.
Diagnostic information
133
No
Remove damaged
original document and
replace with a new
undamaged original
document. Perform an
ADF test. If the problem
remains, go to
Remove all
contaminates from the
media path.
Clean or replace the
ADF feed belt. Go to
"ADF feed belt
removal" on page
456.
Reinstall the torque
limiting clutch and
separator roller.
Problem solved.
Problem solved.
490.
7463
step 2.