The Test Button; Figure 5. Location Of Test Button Inside Electronics Base - TransAct Epic 430 Maintenance Manual

Operational Procedures

The TEST button

The printer has a TEST button on the right side of the Electronics Base. This
button will require a tool (such as a pen or paper clip) in order to activate the
switch.
TEST Button
(inside hole)

Figure 5. Location of TEST Button Inside Electronics Base.

Pressing this button will provide one of three functions. The function is time-
dependent, and the display indicators will change to indicate the next mode,
as follows:

By pressing and releasing the TEST button, the printer will enter self
test mode. This is intended to verify printer operation and is indicated
by the Fault LED illuminating as soon as the button is pressed.

Pressing and holding the button for about 2 seconds will enter hex
dump mode. The LED indication of this mode is the illumination of the
Paper LED and the Fault LED going out after about 2 seconds of the
Test button being held.

Pressing and holding the button for about 4 seconds will enter
configuration mode. The LED indication of this mode is the illumination
of the Open LED and the going out of the Paper LED after about 4
seconds of the TEST button being held.
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