HP 2425 - Manual (Page 91)

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To create the test file, type the following commands at the DOS
prompt:
copy con printest.ps
↵
showpage
↵
^D^Z
↵
(All commands above except the DOS copy command are case sen-
sitive and must be typed exactly as shown.) Showpage is a PostScript
command that prints a blank page. The
↵
symbol means to press the
Enter key. To produce the ^D and ^Z, press and hold down the Ctrl
key while you type the appropriate letters (d and z). These characters
signify the end of the file and must always be included.
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1 To send the PRINTEST.PS file you just created to the printer,
type
print printest.ps
↵
2 If you’re prompted for the name of the list device, type
lpt1
↵
or type the name of the PC’s parallel port to which the printer is
connected (for example,
lpt2 or lpt3 ).
» Note: If the computer has more than one parallel port, they're
probably labeled. If not, check the computer documentation for
the LPT port names.
3 If the printer and PC are communicating, a blank page ejects
from the printer.
If a blank page doesn’t eject and you typed the file correctly, you
may want to check your AUTOEXEC.BAT file to see if LPT1 (the
parallel port) is being directed to COM1 (the serial port):