Specifications

Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET NEXT
D
TM-U230
Specification
(STANDARD)
89 88
ESC ∗
∗∗
∗ m n
L
n
H
d1...dk
[Name] Select bit-image mode
[Format] ASCII ESC ∗ m n
L
n
H
d1...dk
Hex 1B 2A m n
L
n
H
d1...dk
Decimal 27 42 m n
L
n
H
d1...dk
[Range] m = 0, 1
0 ≤ n
L
≤ 255
0 ≤ n
H
≤ 3
0 ≤ d ≤ 255
[Description] Selects a bit-image mode using m for the number of dots specified by n
L
and n
H
• Divide the number of dots to be printed by 256. The interger answer is n
H and the remainder
is n
L. Therefore, the number of dots in the horizontal direction is calculated by nL + 256 × nH.
• 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. Setting a bit to 1 prints a dot or to 0 does not print a dot.
• The bit-image modes selectable by m are as follows.
Horizontal direction
m No. of vertical dots Dot density Adjacent dot Maximum number of dots
0 8 Single density Permitted 200
1 8 Double density Prohibited 400
[Details] • If the values of m and nH are out of the specified range, the data following is processed as
normal data.
• After printing a bit image, the printer returns to normal data processing mode.