Epson FX Microscopic line spacing, Line Feeds, CHR$(27)"3"CHR$(20), 10 LPRINT CHR$(27)"3"CHR$(1), ABCDEF, Here’s an example using the

Microscopic line spacing

There is also a way to space at smaller intervals than 72nds. Using a CHR$(27)“3” will set the spacing to increments of 216th of an inch; l/216-inch is one-third the distance between the pins of the print head (center to center). That means the printer can position a specific line one-third of a dot lower than the previous line. In fact, that’s exactly how the Double-Strike Mode operates. One word of caution. As you can imagine, total accuracy is not guaranteed for such fine settings as 1/216- and 2/216-inch.

You specify this finer line spacing in much the same way as you did the variable line spacing that we showed above with CHR$(27)“A”. The format is CHR$(27)“3”CHR$(n), where n can range from zero to

255.Here’s an example using the l/216-inch line spacing five times. Change lines 10 and 30 to read:

10 LPRINT CHR$(27)"3"CHR$(1)

30 LPRINT "ABCDEF"

ABCDEF

These letters are very heavy looking. To carry this idea to an extreme, increase the upper limit of the loop to 10 or 15.

The ability to adjust line spacing in increments of 1/216-inch gives you tremendous control in your vertical formatting. You can use this control to fine-tune your graphics printouts. If the 7-dot line spacing leaves gaps in the figures, just tighten it up by changing it to 6-2/3-dot (20/216-inch):

CHR$(27)"3"CHR$(20)We’ll use this technique in a later chapter.Line Feeds

Besides being able to change the size of line spaces, you can change other aspects of a line feed. You can send it immediately and for one line only, or you can send it as above, as a continuous feature. And if you are using an FX-80, you can send a reverse line feed to make the print head move back up the page.

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