Homebrew PCBs

stefan-- are you still looking for a manual for a panasonic kx p2123?-
- if so here is a link. i just came by one and it looks promising for 
pcb, has bottem feed streight through.

http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc
ts/Dot_Matrix_Printers/KX/P2123/B2123.pdf





--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> On Wed, 17 Mar 2004 06:30:15 -0800 (PST), pebo festus <mebo31@y...> 
> wrote:
> 
> > with the experence i have had with the II, it will not
> > work,the the roller feed IMHO is just to sloppy.but
> > you might find a work around. i have got to get the
> > right resist through the printer working before going
> > to the next hurtle.
> > mebo
> >
> >
> 
> I would have guessed it does work.
> there is a optical sensor for the paper edge in hp printers, one
> would expect epson to use a similar system.
> 
> then you only need to adjust the other distance, which would be 
much easier
> with a real "table" for the pcb.
> (e.g. a pig plate that is moved by the rollers)
> 
> even with a piece of paper it is hard to print on the same spot 
twice,
> but i think it would work properly if you make a flat carriage on a 
rail
> in the center, just let the carriage rest on the drive roller.... 
(use
> small pressure wheels on the side to keep contact to the rollers)
> for a rail one could use a drawer slide, or simply a piece of steel 
and
> a brass bracket soldered/glued to the underside of the pcb which 
forms the 
> carriage.
> 
> 
> i do think the printer starts to print a exact number of steps 
after the 
> optical
> sensor contact and a exact distance away from the border.
> It is just a question of putting the pcb in the right place.
> 
> ST