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is it safe to clean a canon IPF8400 printhead  taking it out of the printer, with cleaner like magic bullet?

Posted on 2016-08-26
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Last Modified: 2016-09-14
having problem with printhead (less than one year old) on a Canon ipf 8400 printer, and Canon doesn't want to honor the warranty because the printer is outside the US
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Question by:THIERRY LAMARE
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by:John Hurst
John Hurst earned 167 total points (awarded by participants)
ID: 41772333
That is hard to say. I have gently cleaned print heads with a soft cloth and Isopropyl Alcohol. I have never use chemical cleaners as that could seep into the head and ink.
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by:Dr. Klahn
Dr. Klahn earned 166 total points (awarded by participants)
ID: 41772441
My own experience is that the only cleaning that can be done on an inkjet printhead likely to remedy clogged jets is to bleed the printhead overnight.

This works about 1/4 of the time for badly clogged jets.  Mix 100 ml distilled water, 20 ml isopropyl alcohol, one drop liquid dishwashing detergent.  Fold a paper towel in quarters and put it on the bottom of a flat-bottomed glass vessel.  Pour in enough bleeding solution to fill 1 cm deep. Then gently place the printhead, jets down, on the paper towel.  Wait overnight.  Next day, remove the printhead from the bleeding solution and replace it in the printer.  If the situation is improved but not all jets are clear, bleed once more.  If the jets are still clogged, a new printhead is required.

Side note:  There are various "head cleaning" cartridges sold as being able to clean severe head clogs.  A little reflection prompts the question:  If the ink passages are clogged, how is the solution going to get to them?
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by:nobus
nobus earned 166 total points (awarded by participants)
ID: 41772672
maybe this video can help you :  https://www.youtube.com/watch?v=_8egF4Dsf8E
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Author Comment

by:THIERRY LAMARE
ID: 41776857
thank you all for responding good help i will try to celan it up out of the pointer with the video mentionner on youtube.
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by:nobus
ID: 41777537
post results !
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by:THIERRY LAMARE
ID: 41777966
i will post results , might take some time as for now (next week) i am putting a new one in, then i'll try to clean the old one. thank you again
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by:John Hurst
ID: 41797825
Can you please follow up and close this questions as we have provided information on cleaning print heads.
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Accepted Solution

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THIERRY LAMARE earned 1 total points (awarded by participants)
ID: 41797880
sorry it took long ,but i tried to put a new print head in the printer, as it didnt work (printer couldnt recognize the new print head),i have cleaned the old print head with a solution of distilled water and a little bit of isopropyl alcohol (not precisely probably 20 to 30 %), i let the bottom of the print head overnight in the solution and injected with the syringe in the morning more of the solution in the color causing problem(light grey), as seen in the video. put the print head back in the printer did a couple test print to make sure all the alcohol would be gone. Then i printed little prints.The prints seems to have improved but still seeing little lines here and there but need a magnifying glass to see them. I am going to run bigger prints today and will post results. Conclusion I think it works didnt seem to have damaged anything, may need to do another process with more injection cleaning with the syringe into the print head. i am new at this tell me if everyone can see my answer and do i have to close the question? and how?
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by:John Hurst
ID: 41797908
The question was: How to clean the head. You got 3 answers on how to do this.

So at this point, with the information you have provided, go to Close Question, lower left here, select your own answer, and the other 3 posts as assisted answers.
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Author Comment

by:THIERRY LAMARE
ID: 41797954
sorry i dont see" close question"  anywhere on my screen
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by:John Hurst
ID: 41797960
It should to the left and near the bottom. Black Button.

Would you like me to help? and are you happy with my suggestion?
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Author Comment

by:THIERRY LAMARE
ID: 41798038
i see it now , yes i am happy with your help, thank you, let me know.
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by:John Hurst
ID: 41798049
Thank you. I will close.
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Author Comment

by:THIERRY LAMARE
ID: 41798092
thank you all for your help
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by:John Hurst
ID: 41798099
I was very happy to help you.  Thanks
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