P 190
37
The command “ESC” V ($1B $56) followed by a number (from 1 to 3) prints block n. The file continues
printing until it reaches the terminating command “ESC” Z. Obviously, if the block is clear, or if all the
characters are $20, the printer will not print anything. The first block, also called heading, will automatically
be printed when the printer is switched on, if the auto-heading flag is set. The user’s logo or the name of his
company can, therefore, be printed each time the printer is switched on. The three blocks can also be
printed one after the other, there being a total memory bank of 1700 bytes. To recall a block, you must enter
the command “ESC” V and the number of the block you wish to recall.
ASCII: ESC E (n) Hex: $1B $45 (n)
Transmits block (n) in serial
The command “ESC” E ($1B $45) followed by a number (from 1 to 3), transmits in serial the memory
block defined by n. If the printer is using the parallel port this command will, of course, produce no
effect. The file will be transmitted in its entirety, the first block will contain 300 bytes and the second and
third blocks 700 bytes each.
ASCII: ESC Z Hex: $1B $5A
Block saving completed
The command “ESC” Z ($1B $5A) acts as a terminator for the three memory blocks. When the line
buffer reads this terminating command during printing, it stops printing the block and reverts to normal
functioning. In the absence of the terminating command, the entire block will be printed.
ASCII: ESC J (n) Hex: $1B $4A (n)
Loads programmable character (n)
The command “ESC” J ($1B $4A) followed by a number (1 or 2 for 4.3 software and 1 - 8 for 5.3
software) is used to generate the programmable characters. The programmable characters go from
code $1E to code $1F (4.3) or from code $17 to code $1F (5.3). A programmable character consists of
10 lines of 6 dots each; to form a character which corresponds to code $1E, therefore, you must
transmit 10 bytes preceded by “ESC” J1. The bytes must have the same characteristics as the graphic
mode, i.e.:
x P7P6P5P4P3P2P1
d7 d6 d5 d4 d3 d2 d1 d0
where: x is not used;
P7 must be fixed at 1;
P1 to P6 = the graphic dot data ; if it is at 1 it prints and if it is at 0 it does not print.
The P6 bit of the string of points transmitted is printed on the left with the other points running from left to
right (P6, P5, P4, P3, P2, P1) as illustrated:
PRINTER FUNCTIONS
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