Lexmark X940e Owners Manual

Repair information4-129
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Exposure lamp removal
1. Remove the large platen glass. See “Large platen glass removal” on page 4-124.
2. Gently move the scanner carriage (A) to the large opening of the frame to provide access to the front side of 
the exposure lamp (B).
3.  Release the hook, and disconnect the connector from the exposure lamp (B).
4. Remove the screw securing the exposure lamp to the scanner carriage (A).
5. Pull out the harness of the exposure lamp (B) from the...

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8. Remove the insulator bracket (E).
Note:  Before reinstalling the exposure lamp PS card assembly (A), ensure that all connections are properly 
connected.
Note:  Ensure that all harnesses and cables move freely without binding.
Note:  Ensure that the exposure lamp PS card assembly is securely mounted to the scanner carriage (B).
Scanner controller card assembly removal
1. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page...

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Sensor (scanner HP) removal
1. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125.
2. Remove the large platen glass. See “Large platen glass removal” on page 4-124.
3. Gently move the scanner carriage (A) rightward to provide access to the sensor (scanner HP) (B).
4. Release the hooks securing the sensor (scanner HP) (B) to the scanner unit assembly.
5. Disconnect the connector from the sensor (scanner HP) (B).
6....

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ADF angle actuator assembly removal
1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137.
2. Remove the ADF unit assembly. See “ADF unit assembly removal” on page 4-136.
3. Remove the scanner left cover. See “Scanner left cover removal” on page 4-124.
4. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125.
5. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125.
6....

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10. Remove the sensor (ADF angle) (A).
Scanner PS card assembly removal 
1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137.
2. Remove the ADF unit assembly. See “ADF unit assembly removal” on page 4-136.
3. Remove the scanner left cover. See “Scanner left cover removal” on page 4-124.
4. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125.
5. Remove the scanner top rear cover assembly. See...

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8. Remove the scanner PS card assembly (A). 
Scanner PS cooling fan removal 
1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137.
1. Remove the ADF unit assembly. See “ADF unit assembly removal” on page 4-136.
2. Remove the scanner left cover. See “Scanner left cover removal” on page 4-124.
3. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125.
4. Remove the scanner top rear cover assembly. See...

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7. Remove the scanner PS cooling fan assembly (A). 
Connector
A 

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ADF removals
ADF unit assembly removal
Warning:  The ADF is very heavy; do not drop it, or damage will occur.
1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137.
2. Open the ADF to its full upright position.
3. Remove the connection from the ADF to the rear of the scanner unit assembly.
4. Remove the two ADF mounting screws (A).
5. Move the ADF slightly rearward, and then lift upward in the direction of the arrow.
6. Remove...

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Platen cushion removal
1. Open the ADF unit assembly.
2. Gently pull off the platen cushion (A) from the ADF.
Note:  Before reinstalling the platen cushion (A), position the ADF in its upright position, and place the 
platen cushion (A) on the large platen glass (B) flush with the left and top edges. Gently close the ADF to 
attach the platen cushion (A) to the ADF.
A
A
Platen guide
0.5+/-0.2mm
0.5+/-0.2mm 

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ADF rear cover removal
1. Open the ADF left cover assembly.
2. Lift the document tray assembly.
3. Remove the three screws securing the ADF rear cover (A).
4. Lift the ADF rear cover (A) upward.
5. Remove the ADF rear cover (A).
ADF front cover assembly removal
1. Open the ADF left cover assembly.
2. Remove the screw securing the ADF front cover assembly (A).
3. Lift the ADF front cover (A) upward.
4. Remove the ADF left cover assembly (A).
A
Rear
A
Front