Toner Cartridge Near Empty; Toner Cartridge Failure - Lexmark W850n Service Manual

4024-110

Toner cartridge near empty

Step
1 Does the toner cartridge contain toner?
2 Check the toner cartridge for proper installation.
Remove the toner cartridge, and reinstall it.
Does it install properly?
3 Check the gear rotation in the toner cartridge guide
assembly.
Remove the toner cartridge guide assembly.
Does the gear, located at the lower part of the toner
cartridge guide assembly, rotate smoothly?
4 Check the toner cartridge guide assembly for pipe clogging.
Is the pipe, located at the lower part of the toner cartridge
guide assembly, clogged?
5 Check the toner add motor assembly for operation.
Warning: Only perform this test in segments of three
seconds or less, or toner spill will occur.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Toner add motor.
Does the motor rotate normally?
6 Check the toner add motor assembly connection.
Is the toner add motor assembly properly connected?
7 Perform a print test.
Does the error continue?

Toner cartridge failure

Step
1 Check the toner cartridge installation.
Is the correct toner cartridge properly installed?
2 Checking the sensor (RFID toner cartridge) for installation.
Is the sensor (RFID toner cartridge) installed correctly?
2-74
Printer Service Manual
Check
Check
Yes
Go to step 2. Replace the toner
cartridge.
Problem solved. Go to step 3.
Go to step 4. Replace the toner
guide assembly.
Go to step 5. Clean the pipe.
Go to step 7. Go to step 6.
Replace the toner Replace the
add motor connection.
assembly.
Go to "Toner add
motor assembly
removal" on
page 4-95.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes
Go to step 2. Install the correct
toner cartridge
properly.
Go to step 3. Install the sensor
(RFID toner
cartridge)
correctly.
No
No