Refillhpcartridge

Date: Mon, 27 May 91 20:54:43 +0200 From: Karl Pottie <GHGAQA0%BLEKUL11.BITNET@forsythe.stanford.edu> Subject: hp deskwriter cartridge refill This text describes how to refill your Deskwriter or DeskJet ink cartridges. It is a summary of experiences by different people. 1) Why to refill your cartridges ? ---------------------------------- Deskwriter cartridges are pretty expensive. But there is a quick and easy way to refill your cartridges yourself 2) Why not to refill your cartridges ? -------------------------------------- So far I have never heard of anybody damaging his deskwriter by refilling cartridges. But HP doesn't recommend it. Also, the new HP ink is more 'water proof' than any kind of refill. So if need more or less waterproof print-out, you'll need to stick to HP. 3) When to refill ? ------------------- As soon as you notice your cartridge is running dry (printout becomes faint, lines are missing ...) you should refill your cartridge. It's better not to let the cartridge run completely dry, and you should certainly not let an empty cartridge sit on a shelf for some time before you refill. Some people systematically add ink to their cartridges to ensure it never runs dry. 4) How many times can your refill ? ----------------------------------- After a number of refills, the printing nozzles become blocked by dirt and the refill will not longer work. Usually you can expect about 3 to 5 refills. I've been told that the thermal-pulse resistors in the jet mechanisms will tend to wear out after 5 refills or so... this will lead to dots that don't print. [If you run the printer self-test, the printer controller runs a test-pattern, and will actually print the jet number of any jet-resistor that's not drawing the appropriate amount of current... so you can tell the difference between a clog, and a jet problem such as a burned-out resistor or a dirty contact pad.] 5) Which ink to use ? --------------------- Sheaffers's Skrip Jet Black ink seems to please most people. Alternative: Park Quinck Permanent Black.But any water-soluable ink should do. NEVER ever use india ink, because this uses solid suspended particles which almost immediately clog up the nozzles. Print-out is generally a bit less sharp than original HP ink, because the ink spreads out more. It also takes a bit longer to dry. Smuding is worse than the new HP ink. 6) How to refill ? ------------------ * always remove the cartridge from the printer * be sure to place some cloth on the surface where you refill , in case of leakage. * get a syringe with a needle of about 4cm long. * fill the syringe with about 10cc of ink (less if you refill systematically). * the cartridge contains a sponge ink reservoir.Insert the syringe into the air hole on top of the cartridge (in the green arrow) You should make sure the needle penetrates the sponge as deep as possible (about 4 cm).Make sure you do not block the air-hole completely. Do not try to refill by …