Lexmark X940e Owners Manual

Repair information4-79
 7510
Go Back Previous
Next
Replacement warning:  When reinstalling the printhead shutter motor assembly (A), ensure that the plastic 
arm is inserted into the printhead shutter (B).
Switch (printer front door interlock) removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4.
3. Remove the top cover assembly. See “Top cover assembly removal” on page 4-4 or “Rear...

4-80Service Manual 7510 
Go Back Previous
Next
Sensor (printer left lower door interlock) removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the rear left middle cover. See “Rear left middle cover removal” on page 4-6.
3. Remove the MPF feed unit assembly. See “MPF feed unit assembly removal” on page 4-8.
4. Release the hooks securing the sensor (printer left lower door interlock) (A) to the machine.
5. Remove the sensor (printer left lower interlock (A)....

Repair information4-81
 7510
Go Back Previous
Next
8. Remove the RIP card cooling fan cover assembly (A).
Controller box assembly removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4
3. Remove the top cover assembly. See “Top cover assembly removal” on page 4-4.
4. Remove the RIP card assembly. See “RIP card assembly removal” on page 4-84.
5. Remove the controller box top cover...

4-82Service Manual 7510 
Go Back Previous
Next
Switch (main power) removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4.
3. Remove the top cover assembly. See “Top cover assembly removal” on page 4-4.
4. Detach the metal rod (A) from the switch (main power) (B).
5. Release the two hooks securing the switch (main power) (B) to the machine.
6. Remove the switch (main power) (B).
7....

Repair information4-83
 7510
Go Back Previous
Next
Bridge card assembly removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4
3. Remove the top cover assembly. See “Top cover assembly removal” on page 4-4.
4. Remove the RIP card assembly. See “RIP card assembly removal” on page 4-84.
5. Remove the controller box top cover assembly. See “RIP card cooling fan cover assembly removal” on...

4-84Service Manual 7510 
Go Back Previous
Next
RIP card access cover removal
1. Using your finger, lift the RIP card access cover (A) by the notch.
2. Remove the RIP card access cover (A). 
RIP card assembly removal 
1. Remove the two screws securing the RIP card assembly (A) to the machine.
2. Pull the two knurled thumb screws to remove the RIP card assembly (A) from the machine.
3. Remove the RIP card assembly (A) from the machine. 

Repair information4-85
 7510
Go Back Previous
Next
Fax interface card (modem) assembly removal
1. Remove the RIP card assembly. See “RIP card assembly removal” on page 4-84.
2. Remove the two screws securing the fax interface card (modem) assembly (A) to the assembly.
3. Disconnect the connectors from the fax interface card (modem) assembly (A).
4. Remove the fax interface card (modem) assembly (A). 
Hard drive removal
1. Remove the RIP card assembly. See “RIP card assembly removal” on page 4-84....

4-86Service Manual 7510 
Go Back Previous
Next
Interconnect card assembly removal
Warning:  In the event of replacement of any one of the following components:
•RIP card assembly
•Interconnect card assembly
Only replace one component at a time. Replace the required component, and perform a POR before replacing a 
second component listed above. If this procedure is not followed, the printer will be rendered inoperable. Never 
replace two or more of the components listed above without a POR after...

Repair information4-87
 7510
Go Back Previous
Next
Upper printer engine card bracket assembly removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4
3. Remove the top cover assembly. See “Top cover assembly removal” on page 4-4.
4. Remove the RIP card assembly. See “RIP card assembly removal” on page 4-84.
5. Remove the controller box top cover assembly. See “RIP card cooling fan cover...

4-88Service Manual 7510 
Go Back Previous
Next
Replacement warning:  Ensure that the upper printer engine card (B) assembly and the lower printer 
engine card assembly (C) are connected.
Upper printer engine card assembly removal 
1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5.
2. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4
3. Remove the top cover assembly. See “Top cover assembly removal” on page 4-4.
4. Remove the RIP card assembly....