and please check my more recent sharp page My little Sharp Universe.
I happened to be quite some Sharp freak 10 years ago, some may remember my articles in THE european pocketcomputer magazine published by Fischel Gmbh from Berlin. I even built two joysticks for my little PC, as the girls from school had neary destroyed my numpad playing some games. :-)
I found the source to a communications program in perhaps DOS, CT or CHIP or whatever magazine, and used it to save data from my SHARP 1403 to the PC.
To make sure I didnt tell nonsense I just tried it out, and well of course, it only worked partially :-(.
Transmitting to the PC worked, but not sending. First it didnt, because tosharp2.exe was actually for com4 not for com2, and second the cabling has been wrong.
To make it work you have to do the following: Connect the Ground wire to pin3 on the sharp. When sending to the PC, just connect pin 7 (counting starts from 1 at the top) to the RX connector of your PCs serial. To make things complicated, this is pin 2 on 9pin connectors and pin 3 on 25pin connectors :-(. Just start topc#n on your pc, where #n is the number of your serial port. Then hit CSAVE and it works.
Sending to the sharp is a little bit more complicated. You have to
Executables with Source (Includes some kick ass :-) minigolf for sharps which I adopeted for 1403 once):
tar.gzipped version: sharp.tgz
pkzipped version: sharp.zip
a table containing sharps assembly language, tiff for printing.