Believe it or not, with the ink cart almost empty, 2-3 ml of hot water produced great color on plain paper after two or three cleaning cycles and one or two printings of purge 3 color bars.
So far I have done this process on several different HP ink carts and printers. I want to do it in a way that I document the EEprom data before and after the test. Hopefully I can confirm this fix, if someone doesn't beat me too it. It is possilbe that these are somehow connected in the diagnostics and a section of the printhead is shut down. There is a position in the EEprom data that keeps track of the last printer error code.
Since the banks of nozzles are divided down into groups of 128 nozzles, if a bank somehow over heats I can see this could shut down the bank. The only information in that EEprom that could affect printing, is the Printhead Temperature setting. It is the main board EEprom that contains all the data that Canon keeps. The EEprom that is reset is not the one on the back of the printhead. Going back to the post above and resetting the EEprom. There are always a couple of nozzles that just won't give up, but mostly I'm very happy with this approach. So far I'm having 100% success with this approach. Once I get a decent flow of ink, I print the 3 color bars to purge the ink out of the carts. Then I put it in the printer and run alternate cleaning cycles and test prints. I continue to blot the ink carts until I see all 3 colors good and strong. If you let it set, the colors will wick together and contaminate the ink inside the cartridge. Then I blotted the color ink carts on a hot wet paper towel, but never let it set in any spot. I inkjected about 3-5ml depending on the size of the ink cart. I used filtered drinking water heated to about as hot as you could drink a cup of coffee. When the cart is virtually empty or just near that, rather than refill the ink cart, I inject hot water with a syringe.
Canon i560 printer serial port series#
I never got a response so I have done some other experiments on cleaning out very difficult clogs on the HP -94-99 series or in fact, any HP cartridge that has a built in printhead. On a different subject, I had sent you an email about cleaning HP ink carts, similar to the way you refurbish Canon ink carts. It is just a matter of finding the head, and the printer that goes with it. I have about 6 other printheads and one of them probably has the "Picket Fence" syndrome. Thanks very much for you keen eyes and spotting this new post.