Lexmark X940e Service Manual page 446

7510-XXX
6. Remove the inner cover. See
7. Remove the three CMY toner add assemblies. See
8. Remove the K toner add assembly. See
9. Remove the developer interlock plate assembly. See
page 4-49.
Note: When removing the developer assembly, position it in the way it is removed from the machine, or toner
spillage will occur.
10. Ensure the transfer belt lift handle is in the down position and gently remove the appropriate developer assembly
(A).
Note: When removing the developer assembly, ensure that it is positioned in the same manner in which it is
removed from the machine or spillage will occur.
Warning: Ensure that the harness coupler (B) is removed from the old developer unit assembly (A) and installed
on the new one.
Replacement warning: Ensure that the rear area new developer unit assembly (A) is properly engaged into the
machine or the magnetic rolls will not turn properly.
Use the following procedure to test for proper magnetic roll engagement immediately after installing the new C, M or Y
developer unit assembly (A):
CAUTION: When performing motor tests, ensure that all cover and door interlock switches are overridden.
•
Enter the diagnostic mode.
•
Touch MOTOR TESTS.
•
Touch Printer Motor Tests.
•
Touch CMY developer drive motor (this test will not work for the K developer unit assembly).
If the magnetic roll can be seen turning then the developer unit assembly (A) is installed correctly and machine
reassembly can begin.
4-54
MFP Service Manual
"Inner cover removal" on page
"CMY toner add assembly removal" on page
"K toner add assembly removal" on page
"Developer interlock plate assembly removal" on
4-43.
4-48.
4-47.