Pc Cartridge Cooling Fan Failure - Lexmark W850n Service Manual

Step
3 Check the fuser cooling fan for operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Fuser cooling fan.
Does the fuser cooling fan RPM increase?
4 Check the fuser cooling fan for proper connection.
Is CN102, on the dual drive motor assembly, connected
properly?
5 Perform a print test.
Does the error continue?

916.00 PC cartridge cooling fan failure

Step
1 Visually check the PC cartridge cooling fan rotation.
Is the PC cartridge cooling fan visually rotating?
2 Check the PC cartridge cooling fan.
Is there an object blocking the PC cartridge cooling fan
rotation?
3 Check the PC cartridge cooling fan for operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select PC unit cooling fan.
Does the fan rotate normally?
4 Check the PC cartridge cooling fan connection.
Is the PC cartridge cooling fan properly connected?
5 Perform a print test.
Does the error continue?
Check
Check
Yes
Go to step 5. Go to step 4.
Replace the fuser Replace the
cooling fan. connection.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes
Go to step 3. Go to step 2.
Remove the object Go to step 3.
blocking the
rotation.
Go to step 5. Go to step 4
Replace the PC Replace the
cartridge cooling connection.
fan.
Go to "PC
cartridge cooling
fan removal" on
page 4-101.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Diagnostic information
4024-110
No
No
2-49