Scanner Unit Assembly Communication Error - Lexmark X940e Service Manual

Step
2 Check all connections of the ADF controller card assembly.
Are the connections of the ADF controller card assembly
connected properly?
3 Perform a POR.
Does the error remain when the power is turned off/on?
4 Perform a POR.
Does the error remain when the power is turned off/on?

842.12 Scanner unit assembly communication error

Step
1
Check all connections of the scanner controller card
assembly.
Are the connections of the scanner controller card assembly
connected properly?
2
Check all connections of the ADF controller card assembly.
Are the connections of the ADF controller card assembly
connected properly?
3 Perform a POR.
Does the error remain when the power is turned off/on?
4 Perform a POR.
Does the error remain when the power is turned off/on?
Check
Check
Yes
Go to step 3. Replace all
connections.
Replace the Problem solved.
ADF controller
card assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-135.
Replace the Problem solved.
scanner
controller card
assembly.
Go to "Scanner
controller card
assembly
removal" on
page 4-120.
Yes
Go to step 2. Replace all
connections.
Go to step 3. Replace all
connections.
Replace the Problem solved.
ADF controller
card assembly.
Go to "ADF
controller card
assembly
removal" on
page 4-135.
Replace the Problem solved.
scanner
controller card
assembly.
Go to "Scanner
controller card
assembly
removal" on
page 4-120.
Diagnostic information
7510-XXX
No
No
2-111