Fuser Cooling Fan Failure; Pc Cartridge Cooling Fan Failure - Lexmark W840 Service Manual

4024-XXX

915.00 Fuser cooling fan failure

Step
1 Check the fuser cooling fan for installation.
Is the fuser cooling fan installed securely?
2 Visually check the fuser cooling fan for rotation.
Is the fuser cooling fan visually rotating?
3 Check the fuser cooling fan for operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Fuser cooling fan.
Does the display, on the operator panel, change every time
the connector (CN102) of the fuser cooling fan is removed
then replaced?
4 Check the fuser cooling fan for operation.
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?
2-46
Printer Service Manual
Check
Check
Yes
Go to step 2. Install the fuser
cooling fan
securely.
Go to step 3. Go to step 3.
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 4-120.
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
Replace the PC Replace the
cartridge cooling connection.
fan.
Go to "PC
cartridge cooling
fan removal" on
page 4-103
No
No