Lexmark X940e Owners Manual

Repair information4-49
 7510
Go Back Previous
Next
Waste toner cartridge cover removal 
1. Remove the printer front door assembly. See “Printer front door assembly removal” on page 4-3.
2. Lower the waste toner cartridge cover (A) to its lower-most position.
3. Remove the waste toner cartridge.
4. Remove the front left cover. See “Front left cover removal” on page 4-9.
5. Remove the C-clip securing the waste toner cartridge cover (A) to the machine.
6. Move the waste toner cartridge cover (A) to the...

4-50Service Manual 7510 
Go Back Previous
Next
7. Remove the waste toner cartridge sensor assembly (B).
Sensor (waste toner cartridge full) removal 
1. Remove the front left cover. See “Front left cover removal” on page 4-9.
2. Remove the waste toner cartridge cover. See “Waste toner cartridge cover removal” on page 4-49.
3. Remove the waste toner cartridge sensor assembly. See “Waste toner cartridge sensor assembly 
removal” on page 4-49.
4. Disconnect the connector from the sensor (waste toner...

Repair information4-51
 7510
Go Back Previous
Next
Connectors
A 

4-52Service Manual 7510 
Go Back Previous
Next
Switch (waste toner cartridge interlock) removal 
1. Remove the printer front door assembly. See “Printer front door assembly removal” on page 4-3.
2. Remove the front left cover. See “Front left cover removal” on page 4-9.
3. Remove the waste toner cartridge cover. See “Waste toner cartridge cover removal” on page 4-49.
4. Remove the waste toner cartridge sensor assembly. See “Waste toner cartridge sensor assembly 
removal” on page 4-49.
5. Release the...

Repair information4-53
 7510
Go Back Previous
Next
Inner cover removal 
1. Open the printer front door assembly.
2. Remove the front left cover. See “Front left cover removal” on page 4-9.
3. Remove the waste toner cartridge cover. See “Waste toner cartridge cover removal” on page 4-49.
4. Remove the waste toner cartridge sensor assembly. See “Waste toner cartridge sensor assembly 
removal” on page 4-49.
5. Remove the toner waste cartridge.
6. Press the button and raise the transfer belt lift latch...

4-54Service Manual 7510 
Go Back Previous
Next
Waste toner agitator motor assembly removal 
1. Remove the printer front door assembly. See “Printer front door assembly removal” on page 4-3.
2. Remove the front left cover. See “Front left cover removal” on page 4-9.
3. Remove the waste toner cartridge cover. See “Waste toner cartridge cover removal” on page 4-49.
4. Remove the waste toner cartridge sensor assembly. See “Waste toner cartridge sensor assembly 
removal” on page 4-49.
5. Remove the inner...

Repair information4-55
 7510
Go Back Previous
Next
Replacement warning:  Ensure that all PC cartridge units are properly seated and aligned before raising 
the transfer belt lift handle to its upper-most position, or damage will occur. Never force the transfer belt lift 
handle into its home position, or damage will occur.
Image density sensor assembly removal 
1. Remove the printer front door assembly. See “Printer front door assembly removal” on page 4-3.
2. Remove the front left cover. See “Front left...

4-56Service Manual 7510 
Go Back Previous
Next
Warning:  Note the orientation of the harnesses to ensure they are not pinched when replacing the harness 
access cover (A), or damage will occur.
8. Remove the harness access cover (A) from the machine.
9. Disconnect the three connectors from the image density sensor assembly (B).
10. Release the harnesses from the clamps.
11. Remove the screw securing the image density sensor assembly (B) to the machine.
Note:  Ensure the transfer belt lift handle is in...

Repair information4-57
 7510
Go Back Previous
Next
12. Remove the image density sensor assembly (A).
Replacement note:  Requires color calibration adjustments.
Replacement warning:  When replacing the harness access cover, ensure that the harnesses are not 
pinched, or damage will occur. 
CMY toner add assembly removal 
1. Remove the printer front door assembly. See “Printer front door assembly removal” on page 4-3.
2. Remove the front left cover. See “Front left cover removal” on page 4-9.
3. Remove the...

4-58Service Manual 7510 
Go Back Previous
Next
7. Remove the appropriate CMY toner add assemblies (A).
K toner add assembly removal 
Warning:  Ensure the three CMY toner add assemblies are removed before removing the K toner add 
assembly, or damage will occur.
1. Remove the printer front door assembly. See “Printer front door assembly removal” on page 4-3.
2. Remove the front left cover. See “Front left cover removal” on page 4-9.
3. Remove the waste toner cartridge cover. See “Waste toner cartridge...