Media Missing Jam Service Check - Lexmark MB790MFP Service Manual

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7462
ADF top door open jam service check
Use this procedure for the following jams:
• 292.00
Step
1
Remove all documents from the ADF.
Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
2
Check the sensor (ADF top door interlock) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Observe the line "sensor (ADF top door interlock)"
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked?
3
Check the sensor (ADF top door interlock) for proper
connection.
Is the above component properly connected?
4
Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
5
Perform a print test using the ADF.
Does the problem remain?

Media missing jam service check

Use this procedure for the following jams:
• 293.00
Step
1
Remove all documents from the ADF.
Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?
2-122
Service Manual
Check
Check
Yes
Go to step 2.
Problem solved
Go to step 4.
Go to step 3.
Replace the
Replace the
sensor (ADF top
connection.
door interlock).
Go to
"Sensor
(ADF top door
interlock)
removal" on
page
4-80.
Replace the ADF
Problem solved.
controller card
assembly.
Go to
"ADF
controller card
removal" on
page
4-67.
Go to step 5.
Contact next
Problem solved.
highest level of
tech support.
Yes
Go to step 2.
Problem solved
Previous
Next
No
Go Back
No

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Mb780Mps5500

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