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The code to sound the "bell" is CHR$(7), which is ASCII code
7 or (BEL).
Any time your printer receives this code it will
sound the bell for a quarter of a second. This can be used to re-
mind the operator
to change the paper or to make other ad-
justments
to the printer.
You can try this by typing:
LPRINT CHR$(7)
n Resetting
the printer
Up to now when we wanted to reset the printer to the power
on condition we have had to either turn the printer off and on
again, or to send the specific codes that reset the particular
features. There is an easier way. The control code (ESC) "(3"
will reset all of the printer's features to the power on condition
(as determined
by the DIP switches), with two exceptions.
The
exceptions
are that (ESC) "@" will not erase any characters
that you have stored in the printer's RAM memory (Chapter 6
tells you how to create your own characters),
and it won't erase
a macro if you have one stored in the printer's
RAM (this
chapter will tell you how to create a macro).
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In addition, if you set the "Panel" mode by the control panel
settings at power on, these functions will remain with this con-
trol code.
n Taking the printer off line
You know how to put your printer,off
line with the On Line
key on the control panel. The printer has another off line state
that can be controlled
from the computer.
When you turn the
printer
off line from the computer,
the printer
will ignore
anything
that you send it, except for the code to go on line
again.
CHR$(lS)
is the code to turn
the printer
off line;
CHR$(17) turns the printer back to on line status.
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n Printing the bottom of the sheet
Sometimes when you are using individual sheets of paper you
may want to print near the bottom of a sheet. The paper-out
detector
usually stops the printer when you are about 1 inch
from the bottom of the sheet. This is notify you if you are run-
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