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4102-P01
Symptom Tables
Locate the symptom in the following tables and take the appropriate
action.
Carrier Transport Problems
Symptom
• No carrier movement
• Slow carrier movement
• Carrier stops
• Carrier slams side frame
Communications Problems
Symptom
Printer not communicating with
host computer.
Maintenance Station Problems
Symptom
• Fails to cap the printhead
• Fails to clean the printhead
Paper Feed Button and Paper Status Light Problems
Symptom
Paper Feed button does not
operate
2-2
Service Manual
Action
Go to the
"Transport Service Check"
on page
2-14.
Action
Check the USB connection (connector
J601). If the connection is good,
replace the USB/DC jack board.
Action
Go to the
"Maintenance Station
Service Check" on page
Action
With the power on, check for a voltage
reading at connector J633 located on
the LCD for approximately +3 V dc on
pins 1, 2, 3, 4, 6, and 7 to ground. If
the voltage is incorrect, replace the
system board. If the voltage is correct,
replace the top assembly
with buttons and the key PCB cover.
2-6.
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