Confidential
EPSON
TITLE
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REVISION
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F
110 109
TM-T90
Specification
(STANDARD)
GS ( E p
L
p
H
fn [parameter]
[Name] User setup commands
[Description] • Customizes the NV user memory area. The table below explains the functions available in
this command. Executes commands related to the user setting mode by specifying the
function code fn.
fn Format
Function No.
Function
1
GS ( E
p
L
p
H
fn d1 d2
1 Changes into the user setting mode
2
GS ( E
p
L
p
H
fn d1 d2 d3
2 Ends the user setting mode session.
(Performs a soft reset.)
3
GS ( E
p
L
p
H
fn [a1 b18...b11]…
[ak bk8...bk1]
3 Sets value(s) for the memory switch.
4
GS ( E
p
L
p
H
fn a
4 Transmits the settings of the memory
switch to the host.
5
GS ( E
p
L
p
H
fn [a1 n1
L
n1
H
]…
[ak nk
L
nk
H
]
5 Sets the customized value(s).
6
GS ( E
p
L
p
H
fn a
6 Transmits the customized value
settings.
7
GS ( E
p
L
p
H
fn a d1 d2
7 Copies the user-defined page.
8
GS ( E
p
L
p
H
fn y c1 c2 [x d1…
d(y
×
××
×
x)]k
8 Defines data in column format for the
character code page in the active
area.
9
GS ( E
p
L
p
H
fn x c1 c2 [y d1…
d(y
×
××
×
x)]k
9 Defines data in raster format for the
character code page in the active
area.
10
GS ( E
p
L
p
H
fn c1 c2
10 Deletes the data in the character
code page in the active area.
11
GS ( E
p
L
p
H
fn a d1...dk
11 Sets the communication conditions
for the serial interface.
12
GS ( E
p
L
p
H
fn a
12 Transmits the communication
conditions for the serial interface.
•
pL, pH specify (pL + pH × 256) as the number of bytes after p
H
(fn and [parameter]).
• The user setting mode is a special mode to change the values in the NV user memory with
this command.
• In Function 2, the printer performs software reset. Therefore, the printer clears the receive
and print buffers, and resets all settings (user-defined characters, macros, and the character
style) to the mode in effect at power on.
• The customized values can be ascertained with Function 4, 6, or 12, even though the printer
does not enter the user setting mode.