Question about Canon PIXMA MP780 All-In-One InkJet Printer

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MP780 fax ADF issue

Hi there, hoping you can help?
I've had really no problems with this machine. So the other day I go to send a fax from the top and I could tell it wasn't right. Normally it feeds right in and you hear a little click/beep. well now the roller is down and kinda stops the paper before if reaches the sensor part.

I can do everything but send a fax. It receives no problem but when I try to send one. It will take the paper, I dial the number, it takes the paper through but does not dial the number, then says CHECK DOCUMENT.
So I hit ok and that send the paper all the way through.

I don't get it? I see the Alarm flash for a second but no errors or anything?
I just unpluged it for a while still nada?

Any ideas?
Thanks
Alan

Posted by on

  • Alan Z Jan 29, 2009

    Yes, there is a tone if I plug the cable right into the phone.

    When I turn the printer on, I see the Alarm flashes for a bit then read DOCUMENT READY? there is nothing pending so I'm confused. Everything else seems to work fine, print, scan, copies?

    But I know something is up, When I feed from the top ADF the rollor is stopping to paper from hitting the plastic tabs that make that click noise. It still will take the paper just does not do anything.

    I have to hit ok to get the paper out.

    Thanks

  • jamezg Feb 27, 2009

    Sounds like a similar problem that i'm having with an MP780 copying, scanning and faxing. I put the paper in and the beep goes off recognizing the paper but when trying to copy/fax/scan the rollers kick off but the paper isn't being pulled through. I have to open the ADF lid and push the roller down. As soon as the paper feeds through the roller arm moves back up and doesn't go back down. It seems like a sensor problem. No manual to refer to but I'm looking for one.

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Have you check when you dial the no. its working?? Is it any dialtone problem in fax..
Check the phone line connect to the printer fax connector properly and having pulse.

Posted on Jan 29, 2009

  • Puneet Jain
    Puneet Jain Feb 03, 2009

    It require service, please contact to the nearby Repair Shop for its service or call the Cannon Support.

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