Homebrew PCBs

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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