Control panel service check
Warning—Potential Damage: Do not replace the operator panel and controller board at the same time. Each
card contains the printer settings. When either of these cards is new, it obtains some of the settings from the
other card. Settings are lost when both are new and replaced at the same time.
Action Yes No
Step 1
Check the UICC cable for proper connection to the UICC and to
the controller board.
Are they properly connected?
Go to step 2. Reseat the cable.
Step 2
Is the control panel display blank?
Go to step 3. The problem is
solved.
Step 3
Replace the UICC. Go to
“UICC removals” on page 271.
Did this fix the problem?
The problem is
solved.
Replace the
controller board. Go
to
“Controller board
removals” on
page 247.
Toner starvation service check
Action Yes No
Step 1
a Check if the toner cartridge is a supported and genuine
Lexmark supply. If not, then replace it.
b Make sure that the toner cartridge is properly installed.
c Check the toner cartridge and toner cartridge button for
damage. Replace if necessary.
d Make sure that the latest
firmware
is installed.
Does the problem remain?
Go to step 2. The problem is
solved.
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 258.
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 145.
Go to step 5.
4514-6xx
Diagnostics and troubleshooting
167