[COFF] HP42S

[Tomasz Rola via COFF]

On Wed, Sep 24, 2025 at 04:16:55PM +1000, Dave Horsfall via COFF wrote:
[...]
> 
> The thing is starting to play up now, with various memory errors etc; 
> well, you show me memory still working after 70+ years...
> 
> I looked at the printer, but it was far too expensive; has anyone decoded 
> the IR protocol it uses so that it can be fed it into an iPad etc?

The info (or some info) may be buried inside Free42 emulator - it
claims to do both HP42S and HP-82240 printer:

https://thomasokken.com/free42/

https://codeberg.org/thomasokken/free42

But I have no idea if it is so and not so much time to investigate
right now. I have just happened to find this while cleaning up
(i.e. closing) excessive browser tabs.

HTH

-- 
Regards,
Tomasz Rola

--
** A C programmer asked whether computer had Buddha's nature.      **
** As the answer, master did "rm -rif" on the programmer's home    **
** directory. And then the C programmer became enlightened...      **
**                                                                 **
** Tomasz Rola          mailto:tomasz_rola at bigfoot.com             **