Homebrew PCBs

Hello there
I wire the intreface the way they show on the HP info site 
i set the plotter and the computer the same way ,but when ii try to
print a test page it print's one line and then it print's some garbege
and the error light start blink and stop's
If i change the baud rate to the lowest (1200)it print's some lines
and then overflow.what should i do to fix it ???
Thanks
Papas

 
--- In Homebrew_PCBs@y..., "caveteursus" <j.walton@a...> wrote:

> Pin 6 doesn't connect to anything on a DB9.  I have a PIC16F84 
> talking with my HP7475a -- you just need TxD, RxD, Signal Ground and 
> CTS hooked up (well, you don't even need RxD hooked up since the 
> HP7475a is just receiving.)  For those of you who are interested, I 
> just have a MAX232, pin 2 (+ 10V from the charge pump) to assert 
> a "SPACE" to pin 4 of the DB9.