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Service and Error Messages
Service errors prevent further printer operation until some action is taken. When
there is a service error, all of the lights will turn on in a steady state. Press and hold
the Front Panel Button to see a pattern in the lights. (The error will only be
displayed as long as this button is pressed.) Use Table 7-4, “Service and Error
Messages,” to identify what type of service error has occurred.
LEDs Description Recommended Action
ROM/RAM Error. An error was found with
the ROM or RAM. The printer believes that
the ROM is corrupted or an error has been
found in the RAM.
1. Power-cycle the printer by unplugging the printer
and plugging it back in. If this doesn’t clear the error:
2. Unplug the printer, remove any optional memory,
then power the printer back on. If the message
clears, replace the memory card.
3. Replace the Formatter PCA.
Fuser Error. This indicates a fusing
assembly malfunction.
1. Unplug the printer for 10 minutes or more.
2. Verify that the fuser connector is firmly seated in
J102 of the DC Controller PCA and that the
thermistor connector (left of fusing assembly) is
seated into both the printer chassis and J206 of the
DC Controller PCA.
3. Remove the connector from J102 of the DC
Controller. (See Figure 6-13.) Measure the
resistance between pins one and two of the cable.
(This procedure will measure the continuity of the
ceramic heating element.) Normal resistance is 30
ohms +/- 10 ohms. If no resistance is measured,
replace the heating element.
4. Remove the thermistor (temperature feedback)
connector. (See Figure 7-3.) Measure the resistance
between pins one and two. Normal resistance is
440K ohms +/- 30K at 20 degrees C. If the resistance
is not measured replace the heating element.
5. If the resistance readings are correct, yet the error
persists, replace the DC Controller.
Table 7-4 Service and Error Messages (1 of 3)
7-10 Troubleshooting