Homebrew PCBs

Dear Volkan,

Thanks for the information. Challenging achievements are never simple. 
I need to study printer operation more to figure out which control 
signals are needed where and when, especially why it does not accept 
input directly based on detection by the paper feed switch.

Which printer do you regard most suitable for this task? CX4200 or 
would you choose another one based on the experience you have now.

With kind regards,

Gerard Janssen

 

--- In Homebrew_PCBs@yahoogroups.com, Volkan Sahin <vsahin@...> wrote:
>
> Hi Gerard,
> I have faced the same problem. I designed a microcontroller board 
which generates paper switch and paper detect signals according to x-y 
position. I am getting X & Y position information from  the existing 
optical encoders of the printer. 
> On some Epson printers they are using step motor for Y-axis, in this 
case you can get Y position info by counting  step pulses applied to 
the motor but before applying to micro you need to reduce voltage 
level and filter the chopping components by simple RC.
> I did some mechanical  modification to accept 1.6mm board. I trim 
the  two  head height adjustment levers and resize the hole of the 
head rail rod used to hold the rod. 
> Cheers,
> Volkan
> 
>  
> 
> gjm45janssen <g.janssen@...> wrote:    Dear Volkan,
>  
>  When I read about your results in direct printing on PCB, I was 
really 
>  impressed. I am trying to set up an EPSON Stylus C70 printer for 
this 
>  purpose. The regular paper input however does not allow normal PCB 
>  material of 1.6 mm. How did you solve this problem?
>  In the C70 there is a way to get a flat path by entering the paper/
PCB 
>  below the paper carriage. However, the printer does not accept 
this. 
>  When I move a page till the paper feed (PF) roller, the presence of 
>  the page is detected but not accepted for printing. It is just 
moved 
>  out of the printer without being printed. Can you give some hints 
on 
>  how to create a flat path and a reference position that is accepted 
by 
>  the printer.
>  
>  With kind regards,
>  
>  Gerard Janssen
>  
>  PS. Sorry when this is more an interuption of the thread. This is 
my 
>  first post on this forum
>  
>  --- In Homebrew_PCBs@yahoogroups.com, Volkan Sahin <vsahin@> wrote:
>  >
>  > Hi Stefan,
>  > I am using Epson CX4200 and I can say that  I didn't see any 
>  puddling. If it is possible send me some photos of puddling and let 
me 
>  compare. If ink amount seems to be too much you can try to adjust 
>  printer settings.
>  > I am always using 3 colors and each color has 90 nozzles as far 
as I 
>  remember. I am in office now so I didn't remember all settings, 
this 
>  night I can check and send you the settings that I am using. 
>  > Volkan
>  > 
>  > Stefan Trethan <stefan_trethan@> wrote:Volkan, don't you have any 
>  puddling at all?
>  > Which printers did you say you used?
>  > 
>  > 
>  > 
>  > 
>  > [Non-text portions of this message have been removed]
>  >
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