Epson TM-T20II Technical Reference Guide - Page 19

NV Memory (Non-Volatile Memory), NV Graphics Memory, User NV Memory, Memory Switches

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Page 19 highlights

Chapter 1 Product Overview NV Memory (Non-Volatile Memory) The printer's NV memory stores data even after the printer power is turned off. NV memory contains the following memory areas for the user: • NV graphics memory • User NV memory • Memory switches • R/E (Receipt Enhancement) • User-defined page • Maintenance counter As a guide, NV memory rewriting should be used 10 times or less a day when you program applications. 1 NV Graphics Memory Graphics, such as shop logos to be printed on receipts, can be registered. Even with a serial interface model whose communication speed is low, high speed graphic printing is possible. Use the TM-T20II Utility to register graphics. You can also use the TM-T20II Utility or the NV graphics information print mode to print and confirm the registered graphics.  For information about the TM-T20II Utility, see the TM-T20II Utility User's Manual.  For information about how to use the NV graphics information print mode, see "NV Graphics Information Print Mode" on page 74. User NV Memory You can store and read text data for multiple purposes, such as for storing a note including customizing or maintenance information of the printer. Use ESC/POS commands to store and read the text data. For information about ESC/POS commands, see the ESC/POS Quick Reference or the ESC/POS Command Reference. Memory Switches With the memory switches, which are software switches for the printer, you can configure various settings of the printer. For information about the memory switch, see "Setting the Memory Switches/Receipt Enhancement" on page 46. 19

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Chapter 1
Product Overview
19
1
NV Memory (Non-Volatile Memory)
The pr
int
er's NV memory s
t
ores da
t
a eve
n
af
t
er
t
he pr
int
er power
i
s
tu
r
n
ed off. NV memory
co
nt
a
in
s
t
he follow
ing
memory areas for
t
he
u
ser:
• NV
g
raph
i
cs memory
•
User NV memory
•
Memory sw
it
ches
•
R/E (Rece
i
p
t
E
n
ha
n
ceme
nt
)
• User-def
in
ed pa
g
e
• Ma
int
e
n
a
n
ce co
unt
er
NV Graphics Memory
Graph
i
cs, s
u
ch as shop lo
g
os
t
o be pr
int
ed o
n
rece
i
p
t
s, ca
n
be re
gi
s
t
ered. Eve
n
w
it
h a ser
i
al
int
erface model whose comm
uni
ca
ti
o
n
speed
i
s low, h
ig
h speed
g
raph
i
c pr
inting
i
s poss
i
ble.
Use
t
he TM-T20II U
ti
l
it
y
t
o re
gi
s
t
er
g
raph
i
cs. Yo
u
ca
n
also
u
se
t
he TM-T20II U
ti
l
it
y or
t
he NV
g
raph
i
cs
in
forma
ti
o
n
pr
int
mode
t
o pr
int
a
n
d co
n
f
i
rm
t
he re
gi
s
t
ered
g
raph
i
cs.
User NV Memory
Yo
u
ca
n
s
t
ore a
n
d read
t
ex
t
da
t
a for m
u
l
ti
ple p
u
rposes, s
u
ch as for s
t
or
ing
a
n
o
t
e
in
cl
u
d
ing
c
u
s
t
om
i
z
ing
or ma
int
e
n
a
n
ce
in
forma
ti
o
n
of
t
he pr
int
er.
Use ESC/POS comma
n
ds
t
o s
t
ore a
n
d read
t
he
t
ex
t
da
t
a.
Memory Switches
W
it
h
t
he memory sw
it
ches, wh
i
ch are sof
t
ware sw
it
ches for
t
he pr
int
er, yo
u
ca
n
co
n
f
igu
re
var
i
o
u
s se
tting
s of
t
he pr
int
er. For
in
forma
ti
o
n
abo
ut
t
he memory sw
it
ch, see
"Se
tting
t
he
Memory Sw
it
ches/Rece
i
p
t
E
n
ha
n
ceme
nt
" o
n
pa
g
e 46
.
As a guide, NV memory rewriting should be used 10 times or less a day when you program
applications.
For information about the TM-T20II Utility, see the TM-T20II Utility User’s Manual.
For information about how to use the NV graphics information print mode, see
"NV
Graphics Information Print Mode" on page 74
.
For information about ESC/POS commands, see the ESC/POS Quick Reference or the
ESC/POS Command Reference.