Homebrew PCBs

On Fri, 30 Jun 2006 16:53:34 +0200, Volkan Sahin <vsahin@...>  
wrote:

>  Stefan,
> If it is possible send me your inkjet cartridge data. I can help you if  
> you wish to do your SW. I didn't finalize my circuit it is still using  
> RAM instead of E2.  I have just received E2 chips from Digikey most  
> probably end of next week I could be able to add E2 interface.
> Volkan
> .... making a chip replacement with a  microcontroller?


You said it must be a fast micro, i'm not sure that's the case. That one  
webpage you know already the guy used a atmel.
He told me the problem was the startup time, but if you power the  
controller from the printer power and not the chip power that should not  
be a problem (he put the circuit atop the CIS).

Have you tried always sending the same ink level back, or does the printer  
notice if the value doesn't change?

ST