For a jammed cartridge you can use 2 items: Ultra Sonic Cleaner. = Isopropyl There are many other stuff but I keep to this two for now. The method you u= se must dissolve the harden ink. = John Chung --- On Thu, 6/12/08, Richard Prosser wrote: > From: Richard Prosser > Subject: Re: [EE]: Making rubber components, aka Cracking the Cartridge C= artel, Act II... > To: "Microcontroller discussion list - Public." > Date: Thursday, June 12, 2008, 4:41 AM > Phil, > What are you using to clear the blocked print head? > = > I've got an Epson printer with a blocked head but have > been unable to > clear the blockage. (Glass cleaner was what was suggested > to me but > dfidn't seem to do the job). > = > Richard P > = > 2008/6/12 sergio masci : > > > > If you take a small bore neoprene tube (about 2 to 3mm > OD - kind used for > > fishing) and pull on either end it will strech a lot > and become much > > thiner. How about putting a much thiner piece of piano > wire (1mm OD) > > inside the tube and attach it to one end of the tude > and seal it. Then it > > should be possible for you to hold the opposite end of > the tube, push on > > the rod and make the tube longer and thinner (kind of > like pushing on the > > plunger of a syringe). Drill a small hole in the ink > cartridge (smaller > > diameter than the tube). Fill the cartridge through > the hole, then use the > > tube / rode component to plug the hole (strech the > tube, insert it and > > then release it so that it forms its own seal. > > > > Of course the tube / rode component would probably > need to be short and > > you might need to use small pliers etc to manipulate > the tube and rod. > > > > Actually thinking about it, it might be a lot easier > to use much larger > > bore neoprene tube. > > > > Regards > > Sergio Masci > > > > > > On Thu, 12 Jun 2008, Philip Pemberton wrote: > > > >> Well, I think I've almost figured out how > to refill an Epson T044 type > >> cartridge, after buggering up the air intake > filter on one and sacrificing it > >> at the altar of the Gods of Reverse Engineering... > okay, that would be my > >> workbench but natch... > >> > >> It looks like the cartridge has some form of > air-maze system that prevents > >> positive-pressure refilling - i.e. forcing ink > into the cartridge. So I > >> figure, what about negative pressure refilling -- > creating a vacuum inside the > >> cartridge, then using that vacuum to pull ink into > the cartridge. > >> > >> The only problem is, I need two things: > >> - A similar silicone component to fit on the > end of the syringe and adapt > >> it to the fill hole, forming a good air seal > around the joint. > >> - A decent sized silicone rubber plug of some > description to plug the fill > >> hole on the cartridge > >> > >> Now I suspect for the adapter I can use a piece > of model aircraft fuel > >> hose, cut to size, then force that into the hole. > The silicone compresses > >> around the hole, and forms an air seal. That just > leaves the second problem - > >> sealing the hole afterwards. > >> > >> There's far too much ink around the hole > after filling to use any form of > >> sticky tape, and what little I remove just leaks > out again once I put the tape > >> back on. I'd also rather not use hot melt glue > as it's likely to be "a bit" > >> difficult to remove and the heat might boil away > the ink and fudge the > >> chemistry up. Plus it's not exactly easy to > cut it down to fit in the printer > >> without breaking the seal. > >> > >> The ideal solution would be to take a lump of > metal, chop it in two, then > >> drill holes in it to serve as a mould. Then pour > in some RTV and leave it to > >> set. Problem being that neutral-cure RTV is a > little too expensive for my > >> taste (=A318 for 500g, plus another =A38 for the > thickener, or the best part of > >> =A340 for a 500g "pack" of both resin and > catalyst from Farnell). > >> > >> Somehow I don't think normal silicone > sealant is going to cut it.. > >> especially the acid-cure stuff that's sitting > in the shed. > >> > >> Unless of course anyone has another ideas? > >> > >> I've almost fixed the printer (Epson C86) > too, just trying to clear a nasty > >> blockage in the print head.. I intend to fix it as > well as I can, then use it > >> as a testbed for refill inks before I risk ruining > the C64's print head. > >> > >> Hmm, I think this project is turning into a bit > of a money sink... > >> > >> -- > >> Phil. > >> piclist@philpem.me.uk > >> http://www.philpem.me.uk/ > >> > >> -- > >> http://www.piclist.com PIC/SX FAQ & list > archive > >> View/change your membership options at > >> http://mailman.mit.edu/mailman/listinfo/piclist > >> > > -- > > http://www.piclist.com PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > = > -- = > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist = -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist