Stefan, In looking at the service manual for the R380, I see a number of features that should make it an excellent pcb printer. The main one is that the head height is controlled by a motor! The feedback for this motor is via a photointerruptor and a disk with 4 tabs representing the 4 presets that are selected by the paper type operator input. The lowest paper PG (Printhead Gap) is 1.2 mm, while the cd/dvd PG is 4.2 mm, so I'm hoping to be able to print 3 mm pcbs! Spoofing the sensor should be simple, hopefully to the point where it can be continuously adjusted to match the board thickness. Now, I hope the paper path will be as cooperative! Mark At 09:59 AM 4/25/2008, you wrote: >I think it's specified in the service manual. > >I attached a small dial indicator to the head, not to get the distance >exactly right but to get it equal across the width. > >ST > >On Fri, Apr 25, 2008 at 2:15 PM, Mark Lerman <mlerman@...> wrote: > > To those of you who have modified inkjets - how high above the medium > > does an Epson inkjet head ride while printing? Is there an optimal > > distance or isn't it critical? > > > > Mark > > > > > > ------------------------------------ > > > > Be sure to visit the group home and check for new Links, Files, and Photos: > > http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links > > > > > > > > > >------------------------------------ > >Be sure to visit the group home and check for new Links, Files, and Photos: >http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links > > >
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Re: [Homebrew_PCBs] inkjet head height
2008-04-25 by Mark Lerman
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