Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET
NEXT
TM-U220A
Specification
(For Argentina Fiscal)
67
68
A
<Function 3>
GS ( E
p
L
p
H
fn [a1 b18...b11]...[ak bk8...bk1]
(
fn
= 3)
[Format] ASCII GS
( E
p
L
p
H
fn [a1 b1
8
... b1
1
] ... [ak bk
8
... bk
1
]
Hex 1D
28
45
p
L
p
H
fn [a1 b1
8
... b1
1
] ... [ak bk
8
... bk
1
]
Decimal 29 40 69
p
L
p
H
fn [a1 b1
8
... b1
1
] ... [ak bk
8
... bk
1
]
[Range] 10
≤
(
p
L
+
p
H
×
256)
≤
65530 (0
≤
p
L
≤
255, 0
≤
p
H
≤
255)
fn
= 3
a
= 2, 8
b
= 48, 49, 50
[Default (upon shipment)]
All switches are set to Off (
b
=48).
[Description]
•
Changes the memory switch specified by
a
to the values specified with
b
.
•
When (
b
= 48), turns the applicable bit off.
•
When (
b
= 49), turns the applicable bit on.
•
When (
b
= 50), does not change the applicable bit. Set (
b
= 50) as the reserved bit.
•
Memory switch 2 (Msw 2:
a
= 2)
Msw Function Setting
value
2-1 to 2-8 Reserved.
50
•
Memory switch 8 (Msw 8:
a
= 8)
Msw Function Setting
value
8-1 to 8-4 Reserved.
50
8-5
Returns the printer status as a paper out when the
cover is open.
48
Selects the cover open status.
49
8-6
Reserved (Fixed to off).
48
8-7
Releases Printer BUSY when the remaining capacity
of the receive buffer becomes 256 bytes.
48
Releases Printer BUSY when the remaining capacity
of the receive buffer becomes 138 bytes.
49
8-8
Recognizes a cover open during printing as an
automatically recoverable error.
48
Recognizes a cover open during printing as a
recoverable error.
49
<Function 4> GS ( E
p
L
p
H
fn a
(
fn
= 4)
[Format] ASCII GS
( E
p
L
p
H
fn a
Hex 1D
28
45
p
L
p
H
fn a
Decimal 29 40 69
p
L
p
H
fn a
[Range] (
p
L
+
p
H
×
256) = 2 (
p
L
= 2,
p
H
= 0)
fn
= 4
a
= 2, 8
[Description]
•
Transmits the setting value(s) of the memory switch specified by
a
.
