Epson TM-T20II Technical Reference Guide - Page 73

Starting the self-test mode, Close the roll paper cover.

Page 73 highlights

Chapter 3 Application Development Information Starting the self-test mode Follow the steps below to run this mode. 1 Close the roll paper cover. 2 While pressing the Feed button, turn on the printer. (Keep pressing the Feed button until the printer starts printing.) The printer starts printing current status of the printer. When the printer finishes printing the printer status, the following message is printed and the Paper LED flashes. (The printer is now in the self-test wait mode.): "Select Modes by pressing Feed button. Continue SELF-TEST: Less than 1 second Mode Selection: 1 second or more" 3 Press the Feed button to start the test print (less than 1 second). The printer starts test printing. (A rolling pattern is printed using only the resident character set.) If you select "Mode Selection," the printer goes to "NV Graphics Information Print Mode" (page 74), "Receipt Enhancement Information Print Mode" (page 76), or "Software Setting Mode" (page 78). 3 After the test printing has finished, the printer prints the following message, and then the printer is initialized and returned to the normal mode. "*** completed***" 73

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Chapter 3
Application Development Information
73
3
Starting the self-test mode
Follow
t
he s
t
eps below
t
o r
un
t
h
i
s mode.
1
Close the roll paper cover.
2
While pressing the Feed button, turn on the printer. (Keep pressing the
Feed button until the printer starts printing.)
The pr
int
er s
t
ar
t
s pr
inting
c
u
rre
nt
s
t
a
tu
s of
t
he pr
int
er.
Whe
n
t
he pr
int
er f
ini
shes pr
inting
t
he pr
int
er s
t
a
tu
s,
t
he follow
ing
messa
g
e
i
s pr
int
ed a
n
d
t
he
Paper LED
flashes. (The pr
int
er
i
s
n
ow
in
t
he self-
t
es
t
wa
it
mode.):
“Selec
t
Modes by press
ing
Feed b
utt
o
n
.
Co
ntinu
e SELF-TEST: Less
t
ha
n
1 seco
n
d
Mode Selec
ti
o
n
:
1 seco
n
d or more”
3
Press the Feed button to start the test print (less than 1 second).
The pr
int
er s
t
ar
t
s
t
es
t
pr
inting
. (A roll
ing
pa
tt
er
n
i
s pr
int
ed
u
s
ing
o
n
ly
t
he res
i
de
nt
charac
t
er se
t
.)
Af
t
er
t
he
t
es
t
pr
inting
has f
ini
shed,
t
he pr
int
er pr
int
s
t
he follow
ing
messa
g
e, a
n
d
t
he
n
t
he
pr
int
er
i
s
initi
al
i
zed a
n
d re
tu
r
n
ed
t
o
t
he
n
ormal mode.
“*** comple
t
ed***”
If you select “Mode Selection,” the printer goes to
"NV Graphics Information Print Mode"
(page 74)
,
"Receipt Enhancement Information Print Mode" (page 76)
, or
"Software Setting
Mode" (page 78)
.