Specifications

Confidential
SHEET
89
NO.
SHEET
REVISION
H
TITLE
NEXT
90
TM-U590 series
Specification
(STANDARD)
ESC ∗
∗∗
∗ m n
L
n
H
d1 ... dk
[Name] Select bit-image mode
[Format] ASCII ESC ∗ m n
L
n
H
d1 ... k
Hex 1B 2A m n
L
n
H
d1 ... k
Decimal 27 42 m n
L
n
H
d1 ... k
[Range] m = 0, 1 (in standard mode)
m = 0 (in page mode)
0 ≤ n
L
≤ 255
0 ≤ n
H
≤ 3
0 ≤ d ≤ 255
k = n
L
+ n
H
× 256
[Description] Selects a bit-image mode using m for the number of dots specified by n
L and nH, as
follows:
Vertical Direction Horizontal Direction
m
Mode Number of Dots Dot
adjacency
Maximum number of
dots in horizontal
0 8-dot single-density 8 Available 400 dots
1 8-dot double-density 8 Not available 800 dots
[Notes] • If the values of m is out of the specified range, n
L
and data following are
processed as normal data.
• The n
L
and n
H
indicate the number of dots of the bit image in the horizontal
direction. The number of dots is calculated by n
L
+ n
H
× 256.
• If the bit-image data input exceeds the number of dots to be printed on a line, the
excess data is ignored.
• d indicates the bit-image data. Set a corresponding bit to 1 to print a dot or to 0 to
not print a dot.
• If the width of the printing area set by GS L and GS W less than the width
required by the data sent with the ESC ∗
∗∗
∗ command, the following will be
performed on the line in question for each bit of data in single-density mode
(m=0), the printer prints two dots (two half dot for the slip): for each bit of data in
double-density mode (m=1), the printer prints one dot (one half dot for the slip):
① The width of the printing area is extended to the right to accommodate the
amount of data.
② If step ① does not provide sufficient width for the data, the left margin is reduced
to accommodate the data.
• After printing a bit image, the printer returns to normal data processing mode.
• This command is not affected by print modes (emphasized, double-strike,
underline, or character size), except upside-down printing mode.