Display Messages
49
015 COMMUNICATION CHECK
CHECK CABLE
The line is not active on a twinax
interface.
1. Power off and unplug the printer. Check the twinax host data
cable connection and twinax I/O cable connection at the CT
board. Reseat the twinax host data cable connection and the
twinax I/O cable connection at the CT board.
2. Disconnect the twinax auto-termination cable from the printer.
Test the cable for the resistances shown on page 287. If
resistances are not correct, replace the twinax auto-termination
cable.
3. Plug in the printer and power it on. Send a print job to the printer.
Verify that all other devices on the twinax line are working
properly. (Refer to line problem determination procedures, as
recommended by the host system.) If the message is gone, the
host has reestablished communication with the printer. If all other
twinax devices work properly and the message still appears,
replace the coax/twinax expansion board. Record the message
and return it with the defective board.
016 INVALID COMMAND
The printer detects a twinax
protocol communications error
and reports the error.
1. Power off and unplug the printer. Check the twinax host data
cable and twinax I/O cable connection at the CT board. Reseat
the twinax host data cable connection and the twinax I/O cable
connection at the CT board.
2. Disconnect the twinax auto-termination cable from the printer.
Test the cable for the resistances shown on page 268. If
resistances are not correct, replace the twinax auto-termination
cable.
3. Plug in the printer and power it on. Send a print job to the printer.
If the message appears, replace the twinax cable.
4. Send a print job to the printer. If the message appears, go to
Communications Failures, page 211.
Table 3. Message List
Operator Panel Message Explanation Corrective Action
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