Epson TM-T88IV TM-T88IV Technical Reference Guide - Page 57

Application Development Information, How to Control the Printer, Selecting a Driver - printer driver

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Chapter 3 Application Development Infor- Application Development Information This chapter describes how to control the printer and gives information useful for printer application development. How to Control the Printer Use a driver or ESC/POS commands to control the printer. Selecting a Driver Choose one of the drivers, Advanced Printer Driver (APD) or OPOS ADK, depending on the application operating environment. You cannot control the same printer with both of the drivers. For information about the driver operating environment, see the installation manual for each driver. When you newly develop an application • Use APD if you want to print True Type fonts or print much graphics. 3 • OPOS ADK is recommended for system extensibility. An OPOS driver is provided for various peripherals and it is a POS industry standard now. It enables efficient POS system establishment, reduction of development cost, and effective use of application asset. When APD is used for your existing application Use APD. When OPOS ADK is used for your existing application Use OPOS ADK. You can use all functions including ones not supported by OPOS ADK or APD by using a driver with ESC/POS command. Use the DIRECT I/O function of OPOS ADK, the control A command of APD, or Status API to send ESC/POS command from each driver. (See "ESC/POS command functions" on page 58.) 57

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Chapter 3
Application Development Infor-
57
3
Application Development Information
Th
i
s chap
t
er descr
i
bes how
t
o co
nt
rol
t
he pr
int
er a
n
d
gi
ves
in
forma
ti
o
n
u
sef
u
l for pr
int
er
appl
i
ca
ti
o
n
developme
nt
.
How to Control the Printer
Use a dr
i
ver or ESC/POS comma
n
ds
t
o co
nt
rol
t
he pr
int
er.
Selecting a Driver
Choose o
n
e of
t
he dr
i
vers, Adva
n
ced Pr
int
er Dr
i
ver (APD) or OPOS ADK, depe
n
d
ing
o
n
t
he
appl
i
ca
ti
o
n
opera
ting
e
n
v
i
ro
n
me
nt
. Yo
u
ca
nn
o
t
co
nt
rol
t
he same pr
int
er w
it
h bo
t
h of
t
he dr
i
vers.
For
in
forma
ti
o
n
abo
ut
t
he dr
i
ver opera
ting
e
n
v
i
ro
n
me
nt
, see
t
he
in
s
t
alla
ti
o
n
ma
nu
al for each
dr
i
ver.
When you newly develop an application
•
Use APD
i
f yo
u
wa
nt
t
o pr
int
Tr
u
e Type fo
nt
s or pr
int
m
u
ch
g
raph
i
cs.
•
OPOS ADK
i
s recomme
n
ded for sys
t
em ex
t
e
n
s
i
b
i
l
it
y. A
n
OPOS dr
i
ver
i
s prov
i
ded for var
i
o
u
s
per
i
pherals a
n
d
it
i
s a POS
in
d
u
s
t
ry s
t
a
n
dard
n
ow. I
t
e
n
ables eff
i
c
i
e
nt
POS sys
t
em
es
t
abl
i
shme
nt
, red
u
c
ti
o
n
of developme
nt
cos
t
, a
n
d effec
ti
ve
u
se of appl
i
ca
ti
o
n
asse
t
.
When APD is used for your existing application
Use APD.
When OPOS ADK is used for your existing application
Use OPOS ADK.
You can use all functions including ones not supported by OPOS ADK or APD by using a
driver with ESC/POS command. Use the DIRECT I/O function of OPOS ADK, the control A
command of APD, or Status API to send ESC/POS command from each driver. (See
"ESC/POS command functions" on page 58
.)