Question about Canon PIXMA MP600 all-In-One InkJet Printer

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PIXMA MP780 won't print

I've used the menu to clean the heads, changed cartridges many times done the head refreshing and it still won't print. The nozzle spray prints the colors but not the 3eBK. I've replaced that cartridge and it still doesn't print. Is there anything else I can try?

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  • Master
  • 4,041 Answers

Hi


Some times it needs a good clean up but this is up to you if you want to do this I put down here. But after you don this prime the printer so it gets the inks back in the heads, it may take a little time for the inks to work.

Ok it got to be the heads blockage
There is fluid cleaner for this but I can never find any in the shops the only ones I seen is when they sell them in Tesco but they come in with the ink refill bottles so I just use worm water by it self on a cloth and dabbing on the heads to clean them, it will not harm the heads but not to much water.

Some heads are on the inks them self but some have them inside the printer so I not know your printer so if the heads are inside you need to get them out you may find that some heads will just clip out put some need to be unscrewed so you got to know how they come out so be careful and not push to hard on them, if the heads are on the ink then it is a easy job to clean them,
It worth a try it worked for me more than ones.

Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.
All The Best: Pineworks

Posted on Feb 05, 2010

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Posted on Jan 02, 2017

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SOURCE: canon pixma mp780 - vertical line on printing

Not sure if this will help but there is a small glass panel to the left of your flatbed scanner- this must be clean or else I get a black vertical line in my printing.

Posted on Jul 27, 2007

  • 359 Answers

SOURCE: PIXMA MP780 printing trouble

If you haven't done so, I would try another new cartridge. It is entirely possible (and occurs frequently) that you got a bad cartridge. Assuming you removed the tape from the cartridge before putting it in, this is generally indicative of either a bad cartridge, bad print head, or that heads or ink tanks may need cleaning.

The Canon support page for this printer is at:
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=10444

However, as Canon pages come up as generic pages (without the text I input for you), you will have to type in "missing black ink" (without quotes), to see the material they have posted in this regard. You will find instructions there in regard to how to clean the print heads, etc., if that is necessary. However, I would definitely try another cartridge first, especially if you haven't had that much use on the printer, such that you think these other measures may be necessary.

Please post back if you need further help, otherwise thanks for rating FixYa!

Posted on May 28, 2008

  • 92 Answers

SOURCE: 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!

Posted on Apr 26, 2009

  • 142 Answers

SOURCE: I have a Canon PIXMA MP780. It won't print except

If you can print the nozzle test then that proves most of the electronics, it could be the driver is screwed.
Since you can get something out that is intelligent e.g. the larger font lettering then it is processing the file sent to it.
By that I mean rasterising it, converting it to dots of ink, so it can print onto the page as the heads moves back and forth.
Why not try another computer and connect your printer to that one, or try a different file, or even send it a file you've printed successfully in the past before you started to have this problem.

Posted on Sep 27, 2009

Kewyn
  • 103 Answers

SOURCE: Can't unclog black 3eBK nozzle.

If you said you replaced cartridges with new ones and it still doesn't work, the printer is the issue and may need to be replaced.

Posted on Nov 09, 2009

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