Scanner Communication Error - Lexmark X940e Service Manual

7510
Step
3
Check the sensor (RFID toner cartridge) for the black toner
cartridge for proper connection.
Is the above component properly connected?
4 Perform a POR.
Does the error remain when the power is turned off/on?
5 Perform a POR.
Does the error remain when the power is turned off/on
again?
Step
1
Perform a POR.
Does the error occur when the power is turned off/on?
2 Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?

842.00 Scanner communication error

Step
1
Check the scanner interface cable assembly connection
between the RIP card assembly and the scanner unit
assembly.
Is the scanner interface cable assembly connected properly?
2
Check all connections of the scanner controller card assembly.
Are the connections of the scanner controller card assembly
connected properly?
2-110
Service Manual
Check
Check
Check
Yes
Replace the Replace the
sensor (RFID connection.
toner cartridge).
Go to "Sensor
(RFID toner
cartridge)
removal" on
page 4-109.
Replace the upper Problem solved.
printer engine card
assembly.
Go to "Upper
printer engine
card assembly
removal" on
page 4-77.
Replace the RIP Problem solved.
card assembly.
"RIP card
Go to
assembly
removal" on
page 4-73.
Yes
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
Replace the RIP Problem solved.
card assembly.
"RIP card
Go to
assembly
removal" on
page 4-73.
Yes
Go to step 2. Replace the
connection.
Go to step 3. Connect each
connector of the
scanner
controller card
assembly
properly.
No
No
No