Chapter
6
Special Printing Features
In this chapter you’ll discover several new features that will enhance
your control over the printer. Backspacing, for example, allows you
to combine characters. You can use a set of software commands to
switch in and out of international character sets, and you can control
the speed of printing.
Backspace
The backspace function is handy for making overstrikes. Because it
moves the print head backward one character, you can print two
characters in one print position. You can also shift the print head
slightly to print offsets. You activate backspace by typing a CHR$(8)
between the two characters.
Overstrikes
Typically, backspace is used for single-character overstrikes. Here
are a few examples that create some useful mathematical symbols:
NEW
18 LPRINT "="CHR$(8) “/” ' Not-equal
#
For the not-equal symbol, the backspace moves the print head back
over the equal sign so that the slash can be printed on top of it. You can
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