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My printer-PIXMA MP780- says off line. What do I do to get it on line?

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  1. FIRST TRY TO CANCEL ALL THE PENDING DOCUMENTS WHICH YOU HAVE GIVEN BEFORE THEN TRY TO PRINT IF THIS DOES NOT WORK THEN TRY OTHER OPTION GIVEN BELOW.
  2. CHANGE THE USB WIRE (THE CONNECTION BETWEEN PRINTER AND YOUR PC )IF IT IS TOO OLD.
  3. THERE MAY BE THE PROBLEM WITH USB DRIVERS IN UR PC .
  4. TO RECTIFY --- RIGHT CLICK THE MY COMPUTER ICON
  5. CLICK PROPERTIES AND THEN CLICK HARDWARE N GO TO DEVICE MANAGER
  6. UNINSTALL ALL USB PORTS AND THEN SCAN FOR HARD WARE CHANGES
  7. UR PC WILL DETECT UR PRINTER N ASK FOR PRINTER DRIVERS
  8. RELOAD DRIVERS N UR PC WILL COMMNICATE WITH UR PRINTER.
  9. FOR FURTHER ASSISTANCE FEEL FREE TO ASK AND WISH U SUCCESS -BYE.
feel free 4 further assistance n keep sending more question n comments or doubts that arise in ur mind regarding this to me.rate the solution as fixya if it helps u understand n solve ur problem

Posted on Jun 20, 2008

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  • Printers & C... Master
  • 13,433 Answers

On your pc?

Your printer is not communicating with the Operating System.
First uninstall the printer. ( Make sure you have the printer driver disk )

Make sure the printer is OFF and disconnect the power lead to your desktop or laptop.

Leave the computer OFF for 2 to 3 minutes. I actually mean turn it off and disconnect your power cord to the computer. That will clear everything.

Plug in and on your computer and let it boot up. When its fully booted, click START / SETTINGS / PRINTERS and FAXes and click ADD A PRINTER.

Follow the instructions and have the appropriate driver disk or files on your computer to complete the installation.

Remember, most installations require the printer NOT be powered up or connected while you load the drivers. That is normally the last step and the driver loading will prompt you to turn on the power and make the connections.

Posted on Jun 20, 2008

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Plz check the powercable and the data cable is not loosely connected,if your printer is powering on and still you are able to see online then follow the following steps
click on start >settings >click on printer and faxes>double click on your printer name>from the printer tab uncheck the "use printer offline"
If the problem is not solved then remove the printer from your pc and reinstall it againg.
Plz post your findings or you need futher assistance

Posted on Jun 20, 2008

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Do a hard reset.

Posted on Jun 20, 2008

  • Maanita Chadha
    Maanita Chadha Jun 20, 2008

    Try to do a hard reset by unplugging the device from the power outlet and wait for sometime and then reconnect the power adapter,,,,



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1 Answer

When i scan on my Canon Pixma MP780 all in one printer, i get a light red line about an 1/8 of an inch wide down the scanned image?


Due to fact that the line is red makes me think the contact image sensor is faulty. If the line was black then i would have said you have something stuck on either of the scanner glasses. Check the glasses anyway for any muck stuck on them. Also do a scan from the adf and a scan from the flatbed. If the line is made from only one then the CIS is ok. If both do the same (a line) then the CIS IS faulty.

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clean the head of the ink. then do the calibration for canon.

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Hello,

The MP780 is not a wireless printer. It must be connected via a USB cable. Please see the information here:

Canon MP780 Support

Thanks for using Fixya.

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When i scan on my Canon Pixma MP780 printer i get a red line down


This is what the service manual says:
(1) Clean the Document glass.
(2) Check the connection
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***’y.

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Wireless printing on Canon Pixma MP780 printer.


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Software for canon pixma mp780


Not knowing where you are from, I can only give the following help.

Do a Google search using the following text:

pixma mp780 +driver

Note the "+driver" (no space between the "+" and the word "driver").

This will bring up a lot of sites where you can dowload the drivers.

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