Action Yes No
Step 4
Replace the controller board. Go to “Controller board removal” on
page 164.
Did this fix the problem?
The problem is solved. Contact the next level
of support.
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 removal” on page 177.
Did this fix the problem?
The problem is solved. Replace the controller
board. Go to
“Controller board
removal” on page
164.
Toner starvation service check
Action Yes No
Step 1
Check the cartridge plunger.
Is the cartridge plunger properly attached to the front door and is the
spring functioning properly?
Go to step 4. Go to step 2.
Step 2
a Install a new cartridge plunger and spring. See “Cartridge plunger
removal” on page 171.
b Print some pages.
Did this fix the problem?
The problem is solved. Go to step 3.
Step 3
Did a 201.22 error display?
Go to step 4. Go to step 5.
4514-420, -430
Diagnostic information
102
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