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5061
Operator panel LCD/status LED/buttons service check
Use this service check to check both the operation of the panel buttons and to test the LCD display for correct
operation.
•
Replace the operator panel assembly if the LCD display functions normally, but the LED does not come
on.
•
If one or more of the operator panel buttons do not operate correctly, go to "Step A."
If any of the following symptoms occur, go to
•
Operator panel LCD is blank/power on/status LED off
•
Operator panel LCD is blank/power on/status LED on
•
Operator panel LCD displays all diamonds/5 beeps/power on/status LED on
Step A
Step
Actions and questions
1
Buttons Test—Perform the
page
Do any or all of the buttons fail to operate correctly?
Note: If all the buttons fail to operate correctly, the LCD
display is blank, power on status LED is on, and the
printer beeps 5 times, go step B.
Step B
Note: Make sure the operator panel cable is seated firmly in J1 on the system board before proceeding with this
step.
Step
Actions and questions
1
LCD Test—Perform the
Can you run the test?
2
LCD Test—Does the test pass?
3
Operator panel—Is the operator panel operating
correctly except for a few pixels missing or broken?
4
Operator panel assembly—Is the operator panel
assembly completely blank and the power on status
LED off?
5
Operator panel assembly—Is the operator panel
assembly completely blank and the power on status
LED on?
6
Does the printer beep 5 times?
2-88
Service Manual
"Button Test" on
3-15.
"LCD Test" on page
"Step B" on page
2-99.
Yes
Replace the
operator panel
assembly. See
"Operator panel
assembly
removal" on
page
Yes
3-15.
Go to step 2
Problem resolved
Replace the
operator panel
assembly. see
"Operator panel
assembly
removal" on
page
Go to step 6
Go to step 10
Go to step 7
No
Test passes. No
problem found.
4-68.
No
Go to step 4
Go to step 3
Go to step 4
4-68.
Go to step 5
Go to step 12
Replace the
operator panel
assembly. See
"Operator panel
assembly
removal" on
page
4-68.
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