![]() ![]() If the printhead has an air bubble that bubble will just backflow from the print head to through the tubes and make you wonder where the air came from.you know it didn't come from the ink tank since ink is still in upper part of the tubes. Regarding that air "bubble" in the printhead I've seen some YouTube video where the printheads are removed from their holders, but the tubes are still attached and a person kinda slaps/shakes the heads "downward" on a papertowel/rag to dislodge the air bubble out the printhead slot. ![]() Yeap, I did that once in my learning/experimenting process by settting the tanks on top of the printer overnight.the next morning approx 1/3 of the ink in each tank was gone.gone into my printer ink trap/pads.I cleaned it up. but at the same time the ink continues to flow through the printheads into the printhead ink trap/pads and can mess things up. What happens when you place them higher is it does indeed help the flow of ink from the tanks to the printheads.but it helps too will probably push the air out of the tubes into the printheads.and leave the tank high enough long enough the flow may also force the air/air bubble out of the printheads (but depending on how an air bubble may be in the printhead the ink may just flow around the bubble leaving the bubble in place). By that I mean placing the tanks higher than the printer versus even with the printer. One thing you definitely don't want to do to help keep the ink flowing is thinking gravity can be your friend. Good luck.I've done above steps a couple of times over the last year like when I didn't follow my own advice and waited over a month to print something-I just never learn. Buying some latex-type gloves at your local drug store would be a good idea when dealing with printer inks and doing above steps unless you want your finger tips to be all colorful for several days until the ink wears off. Remember, do this about once a week.repeat about once a week.if you only do it every 2-4 weeks you are probably going to be trying to get the air out of the tubes and cleaning the printheads again. Attached is the color print pattern document I copy/print one time about once a week and it has kept my Canon MP287 inkjet printer working just fine. For the 3 color print head you will know when all 3 colors are flowing as you can easily see each color on the towel.Ĥ) Now after you have got the air out and printheads unclogged be sure to turn the printer on about once a week and print/copy a document which significantly uses all colors (I'm counting black as a color). ![]() Remove the printheads from their holders to where you can reach/clean their bottoms/ink ejection slots and then rub the alcohol soaked towel back and forth in the same direction as the slots until you see the ink flowing freely onto the towel.this back and forth rubbing also creates suction which helps to pull the ink through the printhead while also cleaning the printhead ejection slot. What I've found that works best to unclog them if the printer driver/maintenance cleaning setting don't fix the problem, is to use a paper towel/toilet paper soaked with rubbing alcohol. A person just needs to get the air out of the tubes and printheads.ģ) Now, everyone probably knows it's not uncommon for printheads to clog-up even with no air in the system as air just dries up the ink on the printhead ejection slot which is always exposed to the air. I've had these problems.here's what I did to fix the problems:ġ) if you have a good amount of air in the tubes you will need to remove the tubes from the printhead and force ink into the tubes by blowing/forcing air into the filters on the external tank.once the ink reaches the end of the tube insert it back on the printhead.Ģ) Now, there is a good chance air has also got into the top of the printheads also and you may also have to remove the printheads from their holder (but still in the printer holder general area with tubes still attached), place a paper towel/rag under the printheads, force ink into the printheads by blowing on the tube filters some more which forces ink into the printheads displacing the air. This also ends-up causing another problem where a printhead will clog-up and won't print a certain color at all or prints it badly. Otherwise, you will start getting air into the printheads and tubes leading from the external tanks to printheads. The key to keep the ink flowing in the tubes/printheads is to use the printer at least once a week or so.and by using the printer I mean print/copy at least page which utilizes all four colors (and I'm counting black as one of the colors). I have a Canon MP287 with external tanks.had it for over a year. ![]()
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