Printronix SLPA7000 User Manual page 167

Message
27 CU TIMED OUT
28 CU NOT ENAB
33 HEAD OPEN
TIMEOUT
40V POWER FAIL
203 DPI Head Installed
Table 8. Message List
Explanation
Controller Unit Timed Out: Poll
time-out error. The printer was
not polled for one minute across
a coax interface.
Controller Unit Not Enabled:
The printer was not enabled for
one minute or more on a coax
interface.
Status message in the CT
emulation: the printer was
offline more than 10 minutes
and the "Intervention Required"
parameter is set to "Send to
Host."
+40VDC Power Failed: an
internal power failure.
NOTE: The power supply
delivers +24VDC and
+40VDC. The controller
PCBA uses the
+24VDC to develop
+5VDC and +3.3VDC
for its logic circuits.
Normal power-up message.
The printer is running its
initialization routine and
indicating the DPI resolution of
the installed printhead.
List Of Messages
Solution
Check cable connection and
host system. (Refer to line
problem determination
procedures, as recommended
by the host system.)
Check cable connection and
host system. (Refer to line
problem determination
procedures, as recommended
by the host system.)
Close and latch the pivoting
deck. Press PAUSE to put the
printer online.
1. Power off the printer.
Remove the side frame
cover. Check that the power
supply cable is fully seated
in connector J17 on the
controller board.
2. Using a voltmeter, test
between TP4 GND and TP1
+40VDC (+35 to +45VDC).
If the voltage is not in this
range, unplug the ribbon
motors and stepper motor
one at a time and cycle
power each time. If the
message persists, replace
the power supply assembly.
3. Power on the printer. If the
message reappears,
replace the controller
PCBA. Write down the
message and return it with
the defective board.
No action required.
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