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I would like ask for your assistance in choosing an appropriate inkjet cartridge and some technical information that I don't think would be proprietary.  First, allow me to explain my application. 

 

I am a retired electrical engineer and would like to build what is in essence a circuit board printer.  My intent is to construct a small X – Y plotter capable of printing an etch-resist pattern directly on to a copper clad, epoxy-glass board.  This would require several specific characteristics in the type of ink and cartridge chosen.  At present, I envision the general process to be a raster printing of a bitmap image, but I have not yet locked in anything.  The ink would need to be fast drying, dense and resistant to the etchant, which, for the moment, I will assume to be a warm solution of ammonium persulfate.  I want to use a replaceable inkjet cartridge, such as your number “45”, although I have no way to know if this would be the most appropriate ink.

 

So, then my first question is; can you recommend the best ink for my application.

 

Next, and this is the more difficult ask; if you have advised a particular ink and cartridge, May I get some technical information on driving the cartridge.  I would like to know the pinout of the cartridge, and a printer that was designed to use it, (I will need to find an old printer in order to scavenge a carriage with the appropriate contacts for the cartridge), I would also like to know some electrical characteristics.  I would like to know the proper pulse Voltage, duration and recovery rate, (maximum firing rate for the jets).  Of course, any additional information would be helpful.  I have seen several “hacked” printer projects in my reading, but I would, very much, like to start my project with information from the experts.  I can’t say that I have always loved inkjet printers and cartridges, but there are some applications where they are the best choice.  I have no desire to refill cartridges or anything of the sort.  That would be a mess and is not the project I have in mind, although, your tube fed cartridges are tempting.  Anyway.

 

Thank you and I hope that you can help me.

 

Ink-idiot

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