Action Yes No
Step 4
Properly connect all the cables on the controller board.
Does the error remain?
The problem is
solved.
Go to step 5.
Step 5
Unplug the cable JPS1 from the controller board, and verify the
following voltages from the cable:
• +5 V at pins 11, 12, 13, 14, 15, 16
• GND at pins 18, 20
Are the voltages correct?
Go to step 7. Go to step 6.
Step 6
Replace the power supply.
Does the error remain?
The problem is
solved.
Contact the next
level of support.
Step 7
Is the control panel functioning properly?
Go to step 9. Go to control panel
service check. Go to
“Control panel
service check” on
page 155.
Step 8
Perform the control panel service check. Go to
“Control panel
service check” on page 155.
Does the error remain?
Go to step 9. The problem is
solved.
Step 9
Is the LED on the bottom of the controller board illuminating?
Go to step 6. Replace the
controller board. Go
to
“Controller board
removal” on
page 223.
Control panel button service check
Action Yes No
Step 1
Are the control panel display and control panel indicator light
illuminated?
Go to step 2. Perform a control
panel service check.
Go to
“Control panel
service check” on
page 155.
Step 2
POR into the Diagnostics menu and perform a button test:
Diagnostics Menu > HARDWARE TESTS > Button Test
Did the printer pass the test?
Go to step 4. Go to step 3.
4514-330
Diagnostics and troubleshooting
154
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