The
If you look closely at a newspaper photograph, you can see that it is made up of many small dots. The
In its main graphics mode the
To print figures taller than eight dots, the print head makes more than one pass. The printer prints one line, then advances the paper and prints another, just as it does with text.
To keep the print head from leaving gaps between the graphics lines as it does between the text lines, the line spacing must be changed to eliminate the space between lines. With a change in line spacing, the
Each pass of the print head prints one piece of the total pattern, which can be as tall or short and as wide or narrow as you desire. You don’t have to fill the whole page or even an entire line with your graphics figures. In fact, you can use as little or as much space as you like for a figure and put it anywhere on the page.
Pin LabelsThe graphics mode requires a method to tell the printer which pins to fire in each column. Since there are 256 possible combinations of eight pins, you need a numbering system that allows you to use a single number to specify which of the 256 possible patterns you want. This numbering system is shown in Figure
Graphics and |