Isn't it printed on the back?
The Com port is decided on your computer. You'll need to make a
special serial cable for it unless you still have the one that you
used with it before, don't use a regular serial cable.
The details of the serial port settings on the HP 7475a, how to build
the correct serial cable, and setting it up in Windows here on the HP
site:
http://www.hp.com/cposupport/plotters/support_doc/bpp01379.htmlThe description of setup for W95 should work for anything from W95 on up.
Steve Greenfield
--- In Homebrew_PCBs@y..., "James Owens" <wotisname@l...> wrote:
> Hi,
>
> I'm wanting to try and use my HP 7475A plotter to make circuit
boards. It
> has done nothing for many years and I can't find the book that came
with it.
> While cleaning I may have altered the DIP switches on the back for the
> serial port setting. Can someone post the settings I need to run
under WIN98
> on COM2.
>
> Regards,
>
> Terry