Cognitive Solutions A776 Manual De Usuario

A776 (B780) Programming Guide 

A776-PG00001 C 12/09

s = the number of dot rows in the character cell (maximum 64)

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

j = s/8 = the number of bytes (vertically) in the character cell

k = c2 – c1 + 1 = the number of characters to be defined in this command string 
[character i data] = [ni d1 ... d(j 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 j x ni.

The bytes are printed down and across each cell.

See the illustration. 

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, n2) aborts the command.

er data storage area 
1D 22 80 33 nL nH 

n sectors to permanent font area 

1D 22 80 34 nL nH 

n sectors to electronic journal area 

1D 22 80 40 

 

end expanded flash memory allocation sequence

n = 0xFFFF means allocate all remaining sectors to this area; only one area can specify this parameter value.

ASCII 

GS” 0x81 

Hexadecimal  1D 22 81 n 

Decimal 

29 34 129 n 

n specifies 

n = 0  

select logo/font flash 

n = 1  

select permanent font flash

n > 1  

reserved

Logos and user-defined characters can be stored in either flash area.

ASCII 

GS @ n 

Hexadecimal  1D 40 n 

Decimal 

29 64 n

Value of n: 

49 – 51

This command erases all 64K flash memory sectors allocated to user-defined character and logos storage. Those 
sectors should be erased in two situations: when the logo definition area is full and an application is attempting to 
define new logos, and when an application wants to replace one user-defined character set with another. In both 
cases, all logos and character set definitions are erased and must be redefined.
Continued . . .