•
Bridge the following pins:
Press the <F1> key to execute the so-called "loop-back test".
☺ During the line test the text in the status line changes
from "Ready" to "Test running ...".
It is important to set the jumpers in the plug on the end of the data cable
to ensure the complete wiring is tested.
To localize a possible fault, the test section can be shortened
(terminals).
Menu 4.3.2
Selected printer →
Settings →
Check Text →
Echo →
Status →
System messages →
As shown in the illustration above, the check text and the echo must be
identical. If this is not the case, then a fault has occurred. Normally, the
fault is caused by missing wiring or a line breakage.
If the test is positive (line OK) but the printer still does not print, then
crossed wiring may be the problem with the Send (TX) and Receive
(RX) lines crossed.
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