Commodore MPS-801 User Manual page 25

The
PRINT#
Command
The PRINT # command works just like the BASIC command PRINT
except that it directs the output to the printer instead of to the video
screen. After the data you have sent to the printer is finished, the lfn is
automatically closed. This is called "unlistening" and it means that in
order to PRINT# more data, you must re·open the t1le by using another
CMD command. By the way, please notice that you can NOT leave a space
between PRINT and # or the command will not work.
NOTE: In CBM BASIC V2, the PRINT command can be
abbreviated by using a "?". You can NOT do this with
PRINT#. You must always type PRINT# in full.
The SYNTAX for the PRINT#Command is:
PRINT# Ifn, data
PRINT# 99, "HELLO VIC"
PRINT# 2, CHR$(124),123,63,76
The CLOSE Command
The CLOSE command is a very important command to use efficiently. You
should always CLOSE a t1le after you've printed from it. The reason is
that you can only have a maximum of 10 files open at anytime. Therefore,
if you make a habit of closing files when you've finished with them, you
will always have the maximum number of t1les available.
NOTE: Since the CMD command does not close the line to
the printer, you must always follow a PRINT # command with
the CLOSE command in order to properly close a file.
The SYNTAX for the CLOSE Command is:
CLOSE Ifn
CLOSE 99
CLOSE 2
EXAMPLES Using all commands correctly:
OPEN 99, 4
PRINT# 99, "HELLO VIC"
CLOSE 99
19.