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Diagnostic Information 2-1
4044-XXX
2. Diagnostic Information
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CAUTION: NEVER manually actuate or disable the top cover
interlock switch and the printhead shutter actuator at the same
time. To perform some of the service checks and tests, such as
troubleshooting paper feed problems, you need to actuate the top
cover interlock switch with the covers opened or removed and power
applied to the machine. It is important for personal safety that you
DO NOT, FOR ANY REASON, disable the printhead shutter actuator
when power is on.
Remove power from the printer before you connect or disconnect
any cable or electronic board or assembly for personal safety and to
prevent damage to the printer.
Use the service error code, user error message, symptom table,
service checks, and diagnostic aids in this chapter to determine the
corrective action necessary to repair a malfunctioning printer.
The lights on the operator panel can indicate either a user error
message or service error message. When a service error occurs,
the printer stops printing and all operator panel LEDs blink in a
continuous pattern, indicating a service error, until the printer is
powered off. If all operator panel LEDs are blinking, go to the
“Service
Error Codes” on page 2-2
.
When a user error message occurs, one or two operator panel LEDs
are on solid or blinking. Go to the
“User Error Message Table” on
page 2-6
.
If your machine does not have a service error code and does not
complete POST, go to the “POST Symptom Table” on page 2-10. If your
machine completes POST without an error, and you have a
symptom, go to the
“Base Printer Symptom Table” on page 2-10. Locate
your symptom and take the appropriate action.
If a service error code appears while you are working on the
machine, go to the “Service Error Codes” on page 2-2 and take the
indicated action for that error.