After issuing the PRINT command to print a text file, the following
message may be displayed:
The above message indicates that a print output device has not been
specified. After the message is displayed, two options are available:
• Press ENTER to use the default print device setting of PRN
(equivalent to LPT1).
• Type the name of a valid print device that PRINT should access.
Valid parallel devices include LPT1, LPT2, and LPT3. Valid serial devices
are COM1, COM2, COM3, and COM4.
Once the print device is set, MS-DOS will use that device each time the
PRINT command is issued. To change the device setting, restart your
system and use the PRINT command again.
The default printer device can be set when PRINT is first invoked by
using the /D switch, as in the following example:
print /d:com1 filename.txt
The /D switch is one of several switches available that can only be used
the first time PRINT is started. The switches and their uses are as
/d:device Designate the default print device
/b:size Set the size in bytes of the internal buffer (valid
ranges are 512 to 16384; default is 512)
/u:ticks1 Set the maximum number of clock ticks PRINT waits for
the printer to become available (valid ranges are 1 to
255; default is 1)
/m:ticks2 Set the maximum number of clock ticks PRINT can take
to print a character on the printer (Valid ranges are 1
255; default is 2)
/s:ticks3 Set the number of clock ticks the MS-DOS scheduler
allocates for background printing (Valid ranges are 1 to
255; default is 8)
/q:qsize Set the maximum number of files allowed in the print
queue (valid ranges are 4 to 32; default is 10)