Here is a little Basic program to look at the printer output of you Atari and the 850 printer
port. This works on my RX80 and I'm wondering if it works with other Epson printers too.
Hold down the FF button while you turn the printer on. Then run this little Basic program.
If it works correctly you should get a Hex printout starting at 00 and ending at FF. You may
have to take your printer offline for it to print the last line. Holding down the FF at power
up, puts the printer in Hex dump mode. In this mode the printer will print all the data that
it receives in Hexadecimal regardless of what is sent to it. Not really of much value, but
kind of interesting.
10 FOR N=0 TO 255
20 LPRINT CHR$(N);
30 NEXT N
Anyone with an Epson printer, let me know if this works. You're also welcome to try it
on other printers too. You'll have to look in your user manual to see if your printer has
a hex dump mode.
Edited by DavidMil, Sat May 4, 2019 1:24 PM.