EXP Computer C4077-90960 - Manual (Page 299)

Message Error
Log
Category/
Message
Description Recommended
Action
79 SERVICE (xxxx) CALL
SERVICE Catastrophic
System
Message An unrecoverable firmware error occurred.
The numbers (xxxx) following the error
indicate the specific error. Record the error message
including the number in
parentheses (XXXX), then press
SELECT . Write down any
message, if any, and press
SELECT again and write down any
message. Turn off the printer,
and then on again. If the
message persists, determine if
the error occurs with one
particular print job or application.
If yes, it is very probable that the
print job or application is corrupt;
try another request. Additionally,
if the message persists with one
particular driver (PCL driver) try
the PostScript or vice versa. Try a
different driver, such as 4Si, if
available. If the message
continues to persist, check the
following:
1. Cycle power
2. Reseat or replace the
interface cable and cycle power.
3. Remove the SIMMs one at a
time and cycle power.
4. Remove the MIO Card(s) one
at a time and cycle power.
5. Try using the parallel
interface, if possible.
6. With the MIO cards out of the
printer, perform a COLD
RESET.
7. If error continues, replace
formatter. Write down the
page count and serial
number.
80 SERVICE (XXXX) CALL
SERVICE Catastrophic
System
Message An unrecoverable MIO protocol error
occurred. The numbers (xxxx) following the
error indicate the specific error. Record the error message and
the 4-digit code before
continuing. Cycle power. If the
message persists, remove the
MIO cards one at a time and
cycle power to isolate the
problem. Try using the parallel
interface, if possible. Replace the
defective MIO card. If it is an HP
card, include the 4-digit error
code with the defective MIO card
and return it to HP for evaluation.
Replace the Formatter PCA.
Table 7-5 Printer Control Panel Messages (continued)
7-62 Troubleshooting