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Canon iP90 pixma printer: Black ink print head jets blocked up....Suddenly...not gradually black print quality has plunged.... head cleaning and deep cleaning procedures make no difference....Cartirdge has been replaced..... the print head check shows color jets are fine...black is afwful and print quality is awful Help??

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  • wcwdds Jul 31, 2008

    Yes: I did a print head alignment routine...I have been all over the maintenance page and tried all fixes available..... So for my $9.95 what other glowing comments might you have to help unclog my black print nozzles??

  • wcwdds Jul 31, 2008

    Where do I invoke your satisfaction or money back guarantee? I thought someone might actually have a solution...but anyone with a brain, and I have one, can say...."Well maybe you need to replace the print head" Maybe I do, but if that's the solution I'm not satisfied and would like to be diredted to how I get my $9.99 back and reposted to my paypal account....

  • wcwdds Aug 02, 2008

    Didn't fix my problem, but I finally did get communication from someone who sounded like he knew what he was talking about...So.................done!!

  • Anonymous Mar 27, 2014

    Sometimes my print head makes a funny sound or a print job will stop in the middle.

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4 Answers

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  • Master
  • 859 Answers

Sorry you are having trouble getting help. You can exit this thread anytime and you'll be prompted and or receive email to nominate the expert with the best solution. At this point you can invoke the unresolved money back guarantee.

In your case, this comes up a lot and Canon does not offer out print heads, its a factory fix, which is weird as most of us can get them for the other printer makers.

One problem does come up is if you have been refilling your black or buying refilled ink cartridges then this does happen all the time because the pigment is not small enough to Canon standards than the nanometer holes in the printhead.

Assuming you've been using the Canon ink and this has happened. You have used the machine beyond is know MTBF or Mean Time Between Failure rate. This would explain everything and your solution is to get another machine, preferably one where you can replace the print heads in the future. So that leaves out Canon.

In summary, exit this thread, when prompted choose unsatisfied or whatever it is they putting in front of you now, or wait for the email and then do it. You can also contact Fixya.com customer support and do a full write up, but copy and paste the url of this thread first so FixYa can take note of who was failing you. Sorry I didn't get hold of you earlier and give you a straight answer.

Regards,
Worldvet

Posted on Aug 01, 2008

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  • Master
  • 426 Answers

On the cartridge bay remove the foam pad and clean in a utility sink as it will be very messy, use alcohol for faster drying time.... make sure it is 100% dry and replace also check the area on the cartridge holder where the head goes to see if there is any gunk there, then clean the bottom of the cartridge bay with rubbing alcohol

another thing you will want to inspect is the control contacts on both the cartridge and the holder

hope this gets you 1 step closer to resolution

~Lee
Feel free to contact me at lee@whypayforhelp.org

Posted on Jul 31, 2008

  • Lee N.
    Lee N. Aug 01, 2008

    has this helped at all? if not let me know and i would be happy to work with you, Please dont rate the answer unless you are sure that i cant help :) ... what changes have you had since you have tried various things?

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  • Canon Master
  • 6,487 Answers

If that's the case you may need now to replace the print head of this printer because it seems you have problem with it..

Good luck..........

Posted on Jul 31, 2008

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  • Canon Master
  • 3,614 Answers

Did you also try to do a print head alignment on your printer.., you can do this option also on your printer utilities.

Posted on Jul 31, 2008

  • micromaster
    micromaster Jul 31, 2008

    Clogged...? If your printer cartridge is clogged and you're certain that there is ink left in the cartridge, you can sometimes manually force the clog out. Wrap some paper towels that have been dipped with a cleaning solution (we recommend isopropyl alcohol) around the cartridge and bang it against a hard surface. The force of the impact should knock the clogged ink free from the ink nozzles, allowing your ink to flow freely again.

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