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

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Computer can't find scanner

I have been using this scanner on my system for over a year. Suddenly, each time I try to scan something I get a message - Cannot communicate with scanner - it may be turned off or unplugged. - It is not. The printer will work without a problem. Any ideas?

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Please try by reinstalling the scanner driver.plz post your findings

Posted on Apr 09, 2008

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1 Answer

Suddenly stopped scanning and gave error message that scanner not connected. This is not true. Went on HP website. Useless. Says there is no scanner attached to computer. Yes there is. I have used it for...


The scanner has a separate driver as does the printer portion. They are installed separately. Download the scanner driver or re-install the disc that came with your printer.

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Message `no scanner options' although I have just


Disconnect power cord from back of printer ( while printer is on )
while holding the power button connect the cord back.

try to scan

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Use of Scanner


On this model there is a SCAN in black and white or color buttons but you need to have something on the glass to scan. Once it scans it prints!!!

Now lexmark software if installed comes with a program to scan with. you need to check under your prgrams folder under lexmark for the scanning software that was installed with the print driver.

If you open the lid and you do not see the white light chances are your scanner has and needs a bulb inside and at the point to install one of these you might want to concider a new printer.

Please be considerate and leave your feedback and comments and ratings before you leave, Thanks

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I am unable to scan. While in the Scan Mode, the message says "Downloading scan application list from your computer, please wait" The next message says "cannot retrieve scan application list from my...


the reason why the printer is giving you that error msg is because the all in one center is not communicating properly with the programs on your computer to your printer.

try to scan directly to your computer using the all in one center instead.

Jul 23, 2009 | Dell 966 All-In-One InkJet Printer

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Tried to print something from the glass, got error message


this is usually the case when certain settings that are required by the registry are not in place, The solution could be as simple as unistall the scanner driver restart the system and reinstall the scanner driver.

If this doent work get back old registry values by going to start-Programs-accessories-system tools -system restore and restore the settings to the time when youre sure the scanner worked .

Jul 09, 2009 | HP LaserJet 3330 All-In-One Printer

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Try to print--scanner failure appears


I think your printer has been, for some time now, trying to tell you something and the scanner failure message
is the last in a series of messages.

First, the copier and the printer and the scanner worked fine, "for years",
Then, the copier stopped accepting scans, while printing from data sent by your computer.
Then, you received a scanner failure message again, and will not accept data from your computer, and
"won't print at all"

Your printer/scanner/copier/fax has needed service for some time after years of continuous service.

Evaluate now, based on its initial cost and the lesser cost of All In Ones whether you have already
obtained sufficient service to amortize the cost over time, and you may conclude that service is eitherr
cost effective or ineffective at this time.


Apr 17, 2009 | HP Office Equipment & Supplies

1 Answer

HP OJP L7580 and VISTA no SCANNER available


You may want to try the full install before spending more time troubleshooting. It's a 300mb download (!), but it might be worth a try.

You don't say what software you're trying to use to scan, either; you may wish to try another one. If you want to experiment, you can download a free photo editing package that won't take over all your preferences for files -- check out portableapps.com and look for GIMP.


I've got an older HP printer, a PSC 1610, and it took me something like *seven* times installing it on Vista before it worked right. It turns out there's the regular uninstall, and then there's a super uninstall, and then there's a super duper uninstall, etc -- something like seven different uninstallation procedures, which is just insane.

HP's drivers and cruddy software convinced me to never by another one. It's a shame -- the company made some laser printers 15 years ago that are still working perfectly.

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1 Answer

Office Jet K60xi Scanner Failure


Try HP's web site suggestions first.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01077492&cc=us&lc=en&dlc=en&product=61736

If your sacnner still fails to function, uninstall everything for the Officejet through add/remove in control panel. (Power off printer before uninstalling).
Go to Hp's web site. http://welcome.hp.com/country/us/en/welcome.html#Support
Step 1. Click, Download drivers and software (and firmware).
Go to step 2. For product, type in Officejet k60xi .
Power on your printer. (Wait for printer to fully power on).
Click, Start Detection>> button.
Allow HP to scan your system & install the latest software.
Follow the on scren instructions. (When finished, restart your PC). Test your scanner by scanning something.
If your scanner still fails to scan, you may be missing basic HP files loaceted in windows system & windows system32 folders.
(These missing files were not installed during your install of windows). Not your fault.

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Scanner Failure: HP Officejet 6210


After hours of trying things.I found this and it worked. The scanner button doesn't work, but at least I can scan.


?id=microsoft.windows.resources.expandarrow To scan a picture using Windows Photo Gallery

    Before you begin, make sure that you've installed your scanner on the computer and that the scanner is turned on.
  1. ?id=microsoft.windows.resources.shellexecutetopiciconClick to open Windows Photo Gallery.
  2. Click File, and then click Import from Camera or Scanner.
  3. In the Import Pictures and Videos window, click the scanner that you want to use, and then click Import.

Jan 27, 2008 | HP OfficeJet 6210 All-In-One InkJet...

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