Specifications

Programmer’s Guide Model 181 Series 180 Software Commands
TransAct Technologies
09/26/2000 Page 5 - 25
ESC Y
nL nH d1 ... dk
[A]
[Name] Select 8-dot double-density bit-image mode
[Format] ASCII ESC Y
nL nH d1 ... k
Hex 1B 59
nL nH d1 ... k
Decimal 27 89
nL nH d1 ... k
[Range] 0 
nL
 255
0 
nH
 3
0 
d
 255
[Description] See ESC * for a complete description of 8-dot double-density bit-image
mode.
GS 
x y d1
...
d
(
x
×
y
× 8) [EA]
[Name] Define downloaded bit-image in the RAM buffer
[Format] ASCII GS *
xyd1
...
d
(
x

y
 8)
Hex 1D 2A
xyd1
...
d
(
x

y
 8)
Decimal 29 42
xyd1
...
d
(
x

y
 8)
[Range] 1 
x
 255
1 
y
 48
0 
d
 255
[Description] Defines a downloaded bit-image using the number of dots specified by
x
and
y
in the RAM buffer area (volatile memory).
 The number of dots in the horizontal direction is
x
 8.
 The number of dots in the vertical direction is
y
 8.
 If (
x
×
y
× 8) exceeds the size of the buffer in bytes, the image will be truncated in the
appropriate directions (the image buffer size is adjustable via the
Configuration Mode
,
Chapter 1
).

d
indicates bit-image data. Data (
d
) specifies a bit printed to 1 and not printed to 0.
 After a downloaded bit-image is defined it may be saved to the non-volatile eeprom
storage buffer using the ESC ‘ command where it will remain indefinitely. Otherwise,
the image will remain in the RAM buffer where it is available until ESC @ or ESC &
is executed; the printer is reset; or the power is turned off.