Homebrew PCBs

Need HELP!(sorry my poor english,I comes from Taiwai)
I use c84 method modified my C79,all done but I get paper jam error.
I need use CX4200 method to modified my C79,It's to diffcult for me.
I don't understand U1,and pin in/out for my C79(not same as CX4200)
I also don't have programer MSP430F123 to writer flash.
I can pay all cost of Paper Emulator for C79.  
PLEASE HELP ME!
THANKS!

Did you move the paper sensor as instructed? Did you make a carrier for the PCB with the correct
cutout lenght? These would probably give you a paper jam error if not done correctly. I modded a
C88 and it was very easy.

--- In Homebrew_PCBs@yahoogroups.com, William Nelson <wnnelson@...> 
wrote:
>
> Did you move the paper sensor as instructed? Did you make a carrier 
for the PCB with the correct
> cutout lenght? These would probably give you a paper jam error if not 
done correctly. I modded a
> C88 and it was very easy.
>
Hi Mr. Willian Nelson. I blought a C88 just to modify. Would you like 
to sell the mod kit (bushes and gear)to modify mine? Thank you.

If the C79 is anything like the C88 I put the paper sensor at the very front of the printer and
this reqiures no cut out in the carrier for the timing. I did post some pics of this.