Lexmark X940e Owners Manual

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843.00 Sensor (scanner HP) error
2Check all connections of the ADF controller card assembly.
Are the connections of the ADF controller card assembly 
connected properly?Go to step 3. Replace all 
connections.
3Perform a POR.
Does the error remain when the power is turned off/on?Replace the 
ADF controller 
card assembly. 
Go to “ADF 
controller card 
assembly 
removal” on 
page 4-145.Problem solved.
4Perform a POR.
Does the error remain when the...

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843.01 Scanner carriage over run error
4Check the scanner drive motor assembly. 
Caution: When performing motor tests, ensure 
that all cover and door interlock switches are 
overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Scanner Motor Tests.
4. Touch Scanner drv mtr.
5. Touch Forward or reverse.
Does the scanner drive motor assembly operate properly?Go to step 6. Go to step 5.
5Check the scanner drive motor assembly for...

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843.10 ADF RAM test error
843.11 ADF EEPROM error
843.12 ADF pick roll position lift up error
Step Check Yes No
1Check the connection between the ADF controller card 
assembly and the scanner controller card assembly.
Are the ADF controller card assembly and the scanner 
controller card assembly connected properly?Replace the ADF 
controller card 
assembly. 
Go to “ADF 
controller card 
assembly 
removal” on 
page 4-145.Connect the ADF 
controller...

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2Check the sensor (pick roll position HP) for operation. 
1. Enter the Diagnostics Menu.
2. Touch SCANNER TESTS.
3. Touch Sensor Tests.
4. Touch Pick roll position HP.
Does the display on the operator panel, change every time the 
sensing area of the above sensor is interrupted or blocked?Go to step 4. Go to step 3.
3Check the  sensor (pick roll position HP) for connection.
Is the above component properly connected?Replace the 
sensor (pick roll 
position...

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843.20 Scanner unit assembly connection error
843.21 Scanner unit assembly EEPROM error 
843.22 Scanner unit assembly EEPROM sub system error
Step Check Yes No
1Check the connection of each ADF controller card assembly 
connector.
Is each connector of ADF controller card assembly connected 
properly?Go to step 2. Connect each 
connector of ADF 
controller card 
assembly 
properly.
2Check the connection of each RIP card assembly connector.
Are the...

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843.23 Scanner cooling fan error
2Perform a POR.
Does the error remain when the power is turned off/on?Replace the 
scanner 
controller card 
assembly. 
Go to 
“Scanner 
controller card 
assembly 
removal” on 
page 4-130.Problem 
solved.
Step Check Yes No
1Check the scanner cooling fan operation. 
Caution: When performing motor tests, ensure 
that all cover and door interlock switches are 
overridden.
Perform the scanner cooling fan test.
1. Enter the...

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843.24 Image processing error
843.25 Scanner controller card assembly error 1
Step Check Yes No
1Check the connections of the scanner controller card 
assembly.
Are the connectors of the scanner controller card assembly 
connected properly?Go to step 2. Connect each 
connector of the 
scanner 
controller card 
assembly 
properly.
2Check the software version for the scanner controller card 
assembly.
Is the version of the software of the scanner...

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843.26 Scanner controller card assembly error 2
844.00 Exposure lamp error
Step Check Yes No
1Check the connection of each scanner controller card 
assembly connector.
Is each connector of scanner controller card assembly 
connected properly?Go to step 2. Connect each 
connector of 
scanner 
controller card 
assembly 
properly.
2Perform a POR.
Does the error remain when the power is turned off/on?Replace the 
scanner 
controller card 
assembly. 
Go to...

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844.01 White reference/exposure lamp illumination error
3Check the exposure lamp PS card assembly.
Is the above card properly connected to the scanner 
controller card assembly?Replace the 
exposure lamp 
PS card 
assembly.
“Exposure lamp 
PS card 
assembly 
removal” on 
page 4-129.Replace the 
connection.
4Check the scanner PS card assembly for connection.
Is the above card connected properly?Replace the 
scanner PS card 
assembly. 
Go to “Scanner...

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845.00 CCD error
4Check the exposure lamp for operation. 
Caution: When performing motor tests, ensure 
that all cover and door interlock switches are 
overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Scanner Motor Tests.
4. Touch Exposure lamp.
Does the exposure lamp operate properly?Go to step 8. Go to step 5.
5Check the exposure lamp for connection.
Is the above component properly connected?Replace the 
exposure lamp.
Go to...