Lexmark X850E - PC Cartridge Cooling Fan Failure

Diagnostic information 2-157
7500-XXX
916.00 PC cartridge cooling fan failure
3 Check the fuser cooling fan for operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Motor Test.
4. Touch Fuser cooling fan.
Does the fuser cooling fan RPM increase?
Go to step 5. Go to step 4.
4 Check the fuser cooling fan for connection.
Is CN102 on the dual drive motor assembly connected
properly?
Replace the fuser
cooling fan.
Replace the
connection.
5 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-117.
Problem solved.
Step Check Yes No
1 Visually check the PC cartridge cooling fan rotation.
Is the PC cartridge cooling fan visually rotating?
Go to step 3. Go to step 2.
2 Check the PC cartridge cooling fan.
Is there an object blocking the PC cartridge cooling fan
rotation?
Remove the object
blocking the
rotation.
Go to step 3.
3 Check the PC cartridge cooling fan for operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Motor Test.
4. Touch PC unit cooling fan.
Does the fan rotate normally?
Go to step 5. Go to step 4.
4 Check the PC cartridge cooling fan connection.
Is the PC cartridge cooling fan properly connected?
Replace the PC
cartridge cooling
fan.
Go to “PC
cartridge cooling
fan removal” on
page 4-102.
Replace the
connection.
5 Perform a print test.
Does the error continue?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-117.
Problem solved.
Step Check Yes No