User`s manual

EC-520 User’s Manual
- 27 -
ESC & Define user-defined characters
Format： ASCII： ESC & s n m a d1 d2……db
Decimal： 27 38 s n m a d1 d2……db
Hex： 1B 26 s n m a d1 d2……db
[Description]
This command is used for self-defining characters. The meaning of each parameter is shown as
follows:
s： The number of longitudinal byte。 Here S=1,2。 When n=1,
define 7×7 character. When n=2, define 7×9 or half-size
character.
n： Starting ASCII code of user-defined character set。n≥32.
m： Ending ASCII code of user-defined character set。m≤127. The
number of user-defined characters is m-n+1, and the maximum
number is 96. When user defines only 1 character, m=n.
a：
The byte number of user-defined characers.
d1 d2…db： The data of user-defined characters. Every character has s×a
bytes. m-n+1 bytes altogether have（s×a）×（m-n+1）bytes.
The user-defined characters after being defined will be valid all
the time until they are defined again or the printer is turned off.
The format of user-defined characters is shown as follows:
d1 d4
…
d2 d3
…
ESC * Select bit-image mode
Format： ASCII： ESC * m n1 n2 ［d］n1+256×n2
Decimal： 27 42 m n1 n2 ［d］n1+256×n2
Hex： 1B 2A m n1 n2 ［d］n1+256×n2
[Description]
This command is used for setting dot matrix figure mode (m) and setting the transverse dots number
（n1，n2）of dot matrix figure.
m=0，1
0≤n1≤255，0≤n2≤3，0≤d≤255。
n1，n2 is hexadecimal figure with two bits. n1 is low byte and n2 is high byte. n1，n2 is used for
denoting the transverse dots number of figure printed by “ ESC * “ command. This value should be
within the number of maximum line-width dots.
When m=0，normal printing is selected, the maximum number of printing dots is 210.
When m=1，half-dot printing is selected, the maximum number of printing dots is 420. On this
condition the adjacent dots cannot be “1” at the same time.
b7