Scanner Unit Assembly Connection Failure; Scanner Unit Assembly Eeprom Failure - Lexmark X850e Service Manual

7500-XXX
Step
5 Check the pick roll position motor assembly for connection.
Is the above motor connected properly?
6 Place an undamaged document in the ADF, and perform a
ADF test.
Does the error remain?

843.20 Scanner unit assembly connection failure

Step
1 Check the connection of each ADF controller card assembly
connector.
Is each connector of ADF controller card assembly connected
properly?
2 Check the connection of each RIP card assembly connector.
Are the connectors of the RIP card assembly connected
properly?
3 Perform a POR.
Does the error remain when the power is turned off/on?

843.21 Scanner unit assembly EEPROM failure

Step
1 Check the connections of the scanner controller card
assembly connector
Is each connector of scanner controller card assembly
connected properly?
2-136
MFP Service Manual
Check
Check
Check
Yes
Replace the Replace the
pick roll position connection.
motor
assembly.
Go to "Pick roll
position motor
assembly
removal" on
page 4-182.
Replace the Go to step 7.
ADF controller
card assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-167.
Yes
Go to step 2. Connect each
connector of ADF
controller card
assembly
properly.
Go to step 3. Connect each
connector of the
RIP card
assembly
properly.
Replace the Problem solved.
ADF controller
card assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-167.
Yes
Go to step 2. Connect each
connector of the
scanner
controller card
assembly
properly.
No
No
No