Printhead specs are always kept pretty secret and under NDA. Many people have difficulty reverse engineering the Epson printhead interfaces. They most often end up using the driver board that comes with a Epson printer and emulating the IO that the board expects from the various sensors and switches in the printers mechnisims.
Controlling the heads is only one part of your problem. The other is the inks. Unless you are planning on using the inks sold for use with that printer you'll have to formulate some inks. Inkjet ink specifications are unique to each type and model of printhead. You need to filter filter filter as well as have the viscosity, surface tension, vapor pressure etc withing a very narrow range to get reliable jetting. -Bari On 09/10/2014 04:08 AM, Viesturs Lācis wrote: > Hello! > > I was asked about the machine, that basically does this: > https://www.youtube.com/watch?v=W6tkotN95PA > > The problem is that they cost around 10K $, which seems way too much. > I tried some researching on topic and found out that manufacturers of > these machines do not reinvent the wheel and use Epson print heads > (Epson uses piezoelectric elements to eject ink, which lasts much > longer than thermal that is why this exact manufacturer . > > The mechanical part of machine seems relatively easy. > I would like to ask some advice or tips on 2 other questions: > > 1) how to control the Epson head? there are 8 wires going to the head; > I see 2 steps here" > a) remove one wire at a time and try to print, observe the change and > try to make conclusions, what is the function of each wire > b) observe each wire with oscilloscope and try to print, that would > provide some info, what voltage of signal is used, length of pulses > and if the waveform of signal is important; > is there any easier way? > I guess that there is no such manual, covering these topics, available > from manufacturer; or maybe there is? > > 2) how to prepare a code? > I was thinking that there are 2 steps: > a) filter the initial image and create a separate layer for each > colour of ink cartridge; > b) create a raster file for each colour; > > Today I found this: > https://github.com/jv4779/2x_laser > > This seems to be a complete LinuxCNC config for laser, including > python script to generate raster file from image. IMHO that is the > same concept as inkjet printing, so it seems to be good starting > point. > > I would appreciate any comments or insights of potential problem areas > I might get stuck in, if this project is started. > > Viesturs > > ------------------------------------------------------------------------------ > Want excitement? > Manually upgrade your production database. > When you want reliability, choose Perforce > Perforce version control. Predictably reliable. > http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
