Lexmark MS312 - Page 156

Action Yes No
Step 2
Check the cartridge plunger.
Is the cartridge plunger properly attached to the front door and is
the spring functioning properly?
Go to step 5. Go to step 3.
Step 3
a Install a new cartridge plunger and spring. See “Cartridge
plunger removal” on page 232.
b Print some pages.
Did this
fix
the problem?
The problem is
solved.
Go to step 4.
Step 4
Did a 201.22 error display?
Go to
“Cartridge
gearbox service
check” on page 132.
Go to step 5.
Step 5
Try a dierent toner cartridge.
Did this fix the problem?
The problem is
solved.
Go to step 6.
Step 6
Check the connections between the cartridge gearbox and the
controller board.
Is the cable properly connected to the cartridge gearbox and to
the controller board?
Go to step 8. Go to step 7.
Step 7
Reconnect the cable to the cartridge gearbox and to the controller
board.
Did this fix the problem?
The problem is
solved.
Go to step 8.
Step 8
Replace the cartridge gearbox. See
“Cartridge gearbox removal”
on page 219.
Did this fix the problem?
The problem is
solved.
Contact the next
level of support.
4514-330
Diagnostics and troubleshooting
156