Gem/n/ User’s Manual
In our example, we want to start printing in,dot column 100, and print to column 114.Therefore, the total number of characters we will send for each of the two rows is 114.Using our handy table, we know that nl = 114 and n2 = 0. Therefore, the control code we send to Gemini to put the printer in the
LPRlNT CHR$(27); “K”; CHR!$(114);CHR$(O);
Before you start firing the pins, be sure that the top of the second row of dots is onedot’s space below the bottom of the first row. (It’s like having one picture in two frames and wanting the frames lined up close together.) You are using seven printing dots, and each dot is l/72 of an inch below the one above it. Perhaps this illustration will make it clearer.
0 -
1
0-
2
0-
3
0-
4
0 -
5
0-
6
First line • -
77-dot space for llne height
Secondllne • -
1
0-
2
0-
etc.
Our line feed spacing should be 7172inch. We have a special
ESC “1”or, CHR$(27) CHR$(49) Now, it’s just a matter of entering the program.
._
-
-
_
-
-
-
.-
96
