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The X-Philes (2nd Revision)
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The X-Philes Number 1 (1995).iso
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hp48hor2
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inprt.doc
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1995-03-31
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INPRT.DOC File
(c) Hewlett-Packard Company, 1990
OVERVIEW
--------
The INPRT application reads infrared (IR) printer output from different
Hewlett-Packard calculators into the HP 48 stack. INPRT assumes that the
incoming bytes would print with the Roman 8 character set on an HP 82240
printer, and it remaps these bytes to the HP 48 character set (ISO 8859
Latin 1).
PROCEDURE
---------
These are the steps for transferring IR printer output to the HP 48:
1. Transfer the INPRT file from your computer to the HP 48. (Use binary if
you're transferring INPRT from the HP 48.) The {INPRT} menu label will
show up in your HP 48 VAR menu. (If your calculator has a double-
spaced print mode, set it to single-spaced print.)
2. Line up the calculators. (See "Alignment Instructions" below.)
[Note: Do not remove the HP 48SX's port cover; I/R transfer actually
works better with the port cover in place. -jkh-]
3. Press {INPRT} on the HP 48. (INPRT terminates in 10 seconds if no IR
output is received.)
4. Execute the print command on the other calculator.
5. Repeat steps 2 through 4 as needed to transfer additional output.
RESULTS
-------
When the transfer is complete, the HP 48 returns the received data to the
stack in the form of a string to level 2 and a flag to level 1. If the flag
is 0, uncorrectable transfer errors were detected; if the flag is 1, there
still may be missing bytes. The 1 means that each byte that was detected was
received correctly. You should still check the received data since there
may be a linefeed in strings, names, expressions, etc. more than 24
characters long. If the flag is 0, each byte that was not correctable is a
gray blot (character number 127) in the level 2 string.
ALIGNMENT INSTRUCTIONS
----------------------
The calculators should be no more than 0.5 inches (1.3 cm) apart for the
transmission. Also, other alignment issues apply to several calculators:
o For the HP 41: The IR printer module should be in one of the top
ports, and the shiny "IR cone" in the center of the module should be
aligned between the E and T of HEWLETT on the HP 48's Hewlett-Packard
logo.
o For the HP 27S, HP 17B, and HP 42S: The calculator must be raised 0.3
inches (0.75 cm). The center of the LED (which is located at the top
end of the calculator in line between the E and W of HEWLETT) should be
aligned between the E and T of HEWLETT on the HP 48's Hewlett-Packard
logo.
o For the HP 28, HP 18C, and HP 19B: Just line up the calculator's LED
between the E and T of HEWLETT on the HP 48's Hewlett-Packard logo.