Canon PIXMA MP780 All-In-One InkJet Printer Logo
Julie Polok Posted on Mar 09, 2007
Answered by a Fixya Expert

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Scanner Problems Hi I purchased a Canon PIXMA MP780 last year and all has been fine. Then the other day I was doing a 6 page batch scan and the 1st page went through fine the second page stopped half way through and did not finish the scan, since then it has not worked properly with the scanner. I have installed the software on my laptop and it works just fine. The problem is i need it to work with my main pc, which it has been doing until this problem. I have tried used the CD that came with it and also downloaded the software from Canon. I have uninstalled all the software and re installed, making sure it was not connected until after it said to connect, I have repeated this several times but cannot get it to work with the pc again. The printer will work. It does see the scanner and attempts to scan but the most it manages to get it is to 14%. Very frustrated. Thanks in advance

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  • Master 2,427 Answers
  • Posted on Dec 31, 2007
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Joined: Dec 30, 2007
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Uninstall the device and reinstall it

you need to reinstall the drivers

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Do I need a new scanner bulb?

It sounds very much as if the scanner is faulty/failed. The warming-up phase is to ensure that the scanner lamps output is steady, making for consistent scans. Usually this is just a simple timing circuit.
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Hi rksde,


First of all, thank you for purchasing the service/repair manual of Canon Pixma MP780.

Please email me at [email protected], manual has 132 pages, it can't be uploaded here.
Again, thank you so much!

Rating and feedback are highly appreciated!

Good luck and have a great day!

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