Printers JackPrinthead Cleaner for Inkjet Printers Brother HP Canon Lexmark Officejet 8600 5520 4620 6520 6600 6700 6968 6978 8610, MX922 922 Pro 100, Cleaning Kit Solution 100ml / 3.4oz

I bought this professional HP print head cleaning solution to clean my printhead after the black color is clogged. At first I tried all the suggestions from HP customer service, didn’t work. I was facing if replace my HP Officejet 8600 with a new printer, it will take about $100. A little expensive for me, So I would like to find some cheaper solution online, this cleaner only $11.98! I have nothing to lose, then I place the order.According to the guideline of the seller, I took out the cartridges and move the carriage to side, took out the paper towel and blotted and blotted the area below the printhead, inject 1ml printhead cleaning solution into the inklet of black color,wait about 1 hours. Then put everything back in place. Try to print a test page, and found that the black color is more seriously blocked.I was so upset with the cleaner and went to search online for a new replacement printer. At the same time I was searching, I received an email from the seller Printers Jack saying that hadn’t heard from me so they want to offer assistance if I need help and offer to refund purchase if they and their solution didn’t solve my problem. I think I have nothing to lose, so respond my situation for more help(without much hope). However, after their quickly analysis adjust the reason is most probably because the cleaning liquid hasn’t been totally discharged and still stays inside the print head. Under their guidance, I draw 4 ML black refill ink with a syringe and inject it into the ink port of the print head, then install the cartridge and run the driver's "Print head cleaning" function. Then I restart the printer, OMG my HP 8600 is working now as a new printer!After above experiences, I am so pleased with this purchasing. The customer service is so care about their customers, and real people to provide support for your printhead cleaning problems.

My really nice HP printer I’ve had for 3 years was printing lines and not printing the cyan color. So I watched a few YouTube videos on how to fix my HP office jet 6500 printer. I have tried everything with the printer as far as cleaning the heads and running the report and the alignment again. But the cyan was clogged. So I tried this kit. It did clear the black yellow and magenta just fine. Unfortunately it would not clear the stuck cyan. I think the key would be to do it once a year. I make a lot of copies and I didn’t think to clean the inkjets. But now I know! So I ended up buying another HP OfficeJet 8000 model. Too bad because this printer still printed black copies.I think this is a good product I think I should’ve just cleaned my printer sooner.

Have a Canon MG6320 and we just don't print often enough. So it happens quite often that the print head dries up and I have to clean it. Most of the times, the print head will free up after running the internal cleaning process a few times. This time, however, was much worse. I tried using some household stuff and even took out the entire print head - only to see that there is no way to remove a clog that's inside the head. Replacing the head is expensive and china parts will take a month to get here. So I gave this stuff a chance and it worked super quick. It cleared the clog with first procedure. Just notice that the print head stores a bit of ink in it so it takes a few prints to fill up the ports with ink before you can actually print again. It will throw out some blank pages but after a little while everything is back to normal. It's quite a mess, so if you can remove the print head and do this on a plate or so - I would highly recommend doing so

I had streaks through some of my colors and read about cleaning print heads. Seemed like a fairly easy process. I first watched a YouTube video and then followed the product instructions carefully. My printer gave me a Printer Failure error that would not go away after going through shutting down and unplug sequence several times. I emailed vendor to trouble shoot but did not hear back. I had recently brought replacement cartridges so I knew there was ink even through my computer had levels all low. After 3 days of searching and troubleshooting suggestions on-line, I gave up. I am buying a new printer. Not worth investing in the pricey cartridges which is half the cost of the printer itself to get another Printer Failure error.

Followed the instructions to the letter, first try did little to fix the problem. After several repeats, got the problem fairly well resolved, but still have some spotty pint areas.

The product came very well packaged and with different sized nozzles to use on different brands of printers. The flushing went very well. For my HP Inkjet, the hose fit just fine. I followed directions and inject the cleaner slowly.I purchased this on the off chance that my issue was with the ink and not the print head, as the error message told me, but turns out it is actually the print head. So I can't comment on the after use print quality but I am keeping the remaining fluid in case my old unopened inks turn out to be bad and the device needs flushing. Still a win in my opinion.

The smaller tube fits over the smaller size print head colors on the Canon print head and that worked fine, but the attachments that were included in this kit did not work for the larger black color on the print head. The only attachment that came close was too big and didn't make a proper seal so the cleaning solution just leaked out over the top. You are better off finding tubing at a hardware store that fits over the different sizes and then use a syringe. I didn't want go that route and ordered this kit, but now, I'm headed to the store to find a piece of tubing that will fit snugly over the larger black hole on the print head