Cognitive Solutions A799 Manual De Usuario

Chapter 4: Programming Commands

54

Revision D 12/09

A799-PG00001D

ASCII 

ESC % n 

Hexadecimal  1B 25 n 

Decimal 

27 37 n

Value of n: 

0 = Code Page 437 

 

1 = User Defined (RAM) 

 

2 = Code Page 850

Range of n: 

0–2

Default: 

0 (Code Page 437)

Selects the character set. When an undefined RAM character is selected, the current active ROM code page character is 
used. Look in Chapter 3: Programming the Printer, “Character appearance” for the character sets.

The character sets cannot be used together on the same line.

In LEGACY emulation, the low order bit of n is used to select the user-defined character set and the current active ROM 
code page is not affected.

ASCII 

ESC &  s c1 c2 [character 1 data] ... [character k data]  

Hexadecimal  1B 26  s c1 c2 [character 1 data] ... [character k data]  

Decimal 

27 38  s c1 c2 [character 1 data] ... [character k data]

s = 3, the number of bytes (vertically) in the character cell

c = the ASCII codes of the first (c1) and last (c2) characters respectively

c1 = Hex 20–FF (20 is always printed as a space) 
c2 = Hex 20–FF (20 is always printed as a space)

To define only one character, use the same code for both c1 and c2

k = c2 – c1 + 1 = the number of characters to be defined in this command string   

[character i data] = [ni d1 ... d(3 x ni)] for 1 ≤ i ≤ k

ni = the number of dot columns for the ith character, 1 ≤ ni ≤ 16

d = the dot data for the characters

The number of bytes for the ith character cell is 3 x ni.

The bytes are printed down and across each cell.
Defines and enters downloaded characters into RAM. The command may be used to overwrite single characters. User-
defined characters are available until power is turned off or the initialize printer command (1B 40) is received.
Any invalid byte (s, c1, c2, n1) aborts the command.

See 1D 22 n (select memory type) to save user-defined characters.