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

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Hi anyone there

Need help with my MP780 manual fix, head alighment failed repeatedly

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Clean the encoder strip with alcohol free glass cleaner and a couple of qtips. The encoder strip is the clear strip of plastic that runs behind the print head assy the width of the printer it tells the print head where it is in relation to the page. If it is dirty you will have a hard time with alignment

Posted on Jul 28, 2009

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

How to fix alighment problem for my mp 237


Try taking out the cartridges first and then put them back by clearing the head with some tissue. In case if the problem still persist then you may need to download the service manual to follow some further instructions.

Oct 02, 2013 | Canon PIXMA MP240 All-In-One InkJet...

1 Answer

How do i remove and clean the printhead from a canon pixma mp780?


Hi there. i understand that you want to clean the printhead of your canon pixma mp780, dont worry im here to help you out with this.
do this following steps in order for you to clean the printhead.If the printed Nozzle Check Pattern is broken, missing, or a specific color is not printed, clean the print head.
  1. Press the <Menu> button on the printers operation panel repeatedly until [MAINTENANCE] appears in the LCD.

  2. Press the left [<] or right [>] arrow buttons to select the cleaning setting you want. Select [HEAD CLEANING] or [HEAD REFRESHING] for deep print head cleaning.

    Take Note: [HEAD REFRESHING] uses more ink than [HEAD CLEANING], so perform [HEAD REFRESHING] only when necessary ok?

  3. Press the <OK> button.

  4. Print a Nozzle Check Pattern and perform at least two Head Refreshings if the pattern is not correct.
hope that this steps helped you a lot in cleaning the printhead of your printer.Good Luck!

May 30, 2011 | Office Equipment & Supplies

1 Answer

Auto head align Fails screen says "change H


You need to print an alignment page. After you print it, you will be able to align the page using the up and down arrows.

Jan 27, 2011 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

No Printed documents


Have you performed a print head cleaning? If not, follow the instructions below:

1) Press <Menu> on the panel repeatedly until [Maintenance] appears on the display

2) Press left or right arrow buttons until the cleaning setting you want appears, either [Head Cleaning] or [Head Refreshing]

3) Press the <OK> button.

Note: Head cleaning should be attempted first, and may need to be done more than once. Examine the results of the test page.

Head refreshing is more aggressive, uses more ink and should only be performed when necessary (ie. when multiple head cleanings failed to solve your print problem).

Dec 20, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Printer head alignment failed and nozzle check pattern not clearing after repeated cleanings


That is the only thing that can be donw by the end user through software,
For more fine tunning, please get it to a nearest service center.

Dec 18, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Print head overheat


You can buy a new printhead, if that is the problem. did you try printing after the machine cooled down?
Try going on eBay and search for an MP780 printhead...it should cost about $50-60 or about $60-85 elsewhere, check Canon too.
Possibly, a cleaning kit might unclog anything plugged, though a electrical problem is probably fixed only with a new head. New heads snap in to the printer...Good Luck!

May 28, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Printer prints same goobly gook over and over how do i clear


Solution: Perform the print head cleaning procedure MP750 / MP780

Print Head Cleaning / Head Refreshing If the printed Nozzle Check Pattern is broken, missing, or a specific color is not printed, clean the print head.
  1. Press the <Menu> button on the printers operation panel repeatedly until [MAINTENANCE] appears in the LCD.

  2. Press the left [<] or right [>] arrow buttons to select the cleaning setting you want. Select [HEAD CLEANING] or [HEAD REFRESHING] for deep print head cleaning.

    Note: [HEAD REFRESHING] uses more ink than [HEAD CLEANING], so perform [HEAD REFRESHING] only when necessary.

  3. Press the <OK> button.

  4. Print a Nozzle Check Pattern and perform at least two Head Refreshings if the pattern is not correct.

Now if you mean not printing the letters correctly go to this site and download the drivers and reinstall them. Also you will find manuals on HOW TO sort of thing:
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=10444#DownloadDetailAct

hope this helped, please leave rating

May 07, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

The 3eBK head stopped printing.


Try below some steps which might help you resolve the problem.

Print Head Cleaning / Head Refreshing If the printed Nozzle Check Pattern is broken, missing, or a specific color is not printed, clean the print head.
  1. Press the <Menu> button on the printers operation panel repeatedly until [MAINTENANCE] appears in the LCD.
  2. Press the left [<] or right [>] arrow buttons to select the cleaning setting you want. Select [HEAD CLEANING] or [HEAD REFRESHING] for deep print head cleaning.

    Note: [HEAD REFRESHING] uses more ink than [HEAD CLEANING], so perform [HEAD REFRESHING] only when necessary.
  3. Press the <OK> button.
  4. Print a Nozzle Check Pattern and perform at least two Head Refreshings if the pattern is not correct.
If this does not help, try removing the print head and then install it again. Once place, dont forget to aligh the head. Following are the steps:

Reseat Print Head Reseating the print head is seldomly needed to be done.
  1. Press the Open Button (1) to open the Paper Output Tray (2).

    mp780_openbutton.gif
  2. Raise the Scanning Unit until it stops.
    1. Pull and hold the Scanning Unit Lever towards you, then raise the Scanning Unit.
    2. The Print Head Holder moves to the middle.

      mp780_scanunit.gif
  3. Open the Inner Cover 1.

    mp780_innercover1.gif
  4. Open the Inner Cover 2.

    mp780_innercover2.gif

    CAUTION:

    a. Do not try to manually move or stop the Print Head Holder.

    b. Do not touch any metal parts.
  5. Press the ink tank's tab (1), then remove it from the slot (2).

    mp780_inktankremoval.gif

    IMPORTANT:
    Handle ink tanks carefully to avoid staining clothing or the surrounding area.
  6. Lift up the lock lever and take out the print head.

    mp780_ph_removed.gif
  7. Again, place the print head back in position and press down the lock lever.

    mp780_ph_inserted.gif
  8. Insert the ink tank into the empty slot on the print head. Press down gently on the ink tank until an audible click is heard. Make sure the ink tank is in the correct slot.

    mp780_inktankclicked.gif

    IMPORTANT:

    a. Make sure that the ink tank is inserted in the slot that corresponds to the ink tank's color.

    b. If the ink tank is inserted in the wrong slot, perform two head refreshings.
  9. Close the Inner Cover 2.
  10. Close the Inner Cover 1.
  11. Pull the Scanning Unit Lever towards you to close the Scanning Unit.
  12. Align the print head position after the print head is installed. You can align the print head position either automatically or manually. When automatic alignment does not work well, align the print head position manually.
Automatically Aligning The Print Head Position:
  1. Load A4-or letter-size plain paper in the paper support tray. Auto alignment cannot be performed when the Feed Switch is set to [CASSETTE].
  2. Press <Menu> repeatedly until [MAINTENANCE] appears.
  3. Press left or right arrow to select [AUTO HEAD ALIGN].
  4. Press <OK>. The print head position alignment pattern prints.
  5. Check the printed pattern. If the printed pattern matches the illustration, the print head position alignment is complete.
Manually Aligning The Print Head Position:
When automatic alignment does not work well, align the print head position manually.
  1. Load A4- or letter-size plain paper in the paper support or cassette.
  2. Select the paper source with <Feed Switch> button.
  3. Press <Menu> repeatedly until [MAINTENANCE] appears.
  4. Use left or right arrow to select [ALIGN PRINT HEAD].
  5. Press <OK>. A horizontal pattern is printed.
  6. Beginning from column A on the printout, enter checkmarks in the patterns that have the most solid image.

    mp780_alignment1.gif

    (1): Bad example (Least solid box)

    (2): Good example (Most solid box)
  7. Press left or right arrow to select the pattern number that you checked in column A on the printout in step 6.

    (A): Column
    (0): Select pattern number with most solid image
  8. Press <OK>.
  9. Repeat steps 7 and 8 to adjust columns B to L. When all the horizontal patterns are adjusted, you will be prompted to print a vertical pattern [PRINT VERT. PATTERN].
  10. Press left arrow. A vertical pattern is printed.
  11. Beginning from column M on the printout, enter checkmarks in the patterns that have the most solid image.

    mp780_alignment2.gif

    (1): Bad example (Least solid box)

    (2): Good example (Most solid box)
  12. Press left or right arrow to select the pattern number that you checked in column M on the printout in step 11.
  13. Press <OK>.
  14. Repeat steps 12 and 13 to adjust column N.
I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.

If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!

Apr 25, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon pixma mp780


From the front panel (Macintosh and Windows)Press MENU or SETUP (depending on the model).
Press the right ARROW repeatedly until the display window reads Maintenance.
Press ENTER.
Press the right ARROW repeatedly until the display window reads Align Print Cartridges.
Press ENTER. The unit will begin the alignment process and the display window will read Printing Alignment Page
Verify that the alignment was successful after the page is complete.

Jul 11, 2008 | Canon PIXMA MP780 All-In-One InkJet...

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