Compuprint MDP40B Programmer Manual - Manual (Page 78)

A-76
n and m Indicate the byte number of the sequence n is the low part and m is the high
part.
id: Indicate the printer model. The id related to your printer is 23H.
p and t Indicate the memory address of the character that you wish to replace. p is
the low part and t is the high part.
Data Is the entry 9 bytes of the character that you want to position at address
specified by p and t.
ESC =
Defines downloaded characters.
(IBM Proprinter 4722, 9068)
ASCII Code ESC = c
1
c
2
n
Hexadecimal Value 1B 3D c
1
c
2
n
Decimal Value 27 61 c
1
c
2
n
The character font image download (ESC = c
1
c
2
n ) command downloads up to 256 user-
defined characters.
9 pin font image
c
1
c
2
Define the least-significant and most-significant byte (respectively) of a
hexadecimal count of the bytes n that follow the count. You calculate the
count as follows:
Count (c
2
* 256) + c
1
or
Count ((number of downloaded characters) * 13) + 2