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

1 Answer

Print head align failure will not print black ink

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,306 Answers

The printhead is probably worn out and won't align until you replace it...QY6-0049-000 around $50.00

Posted on Sep 11, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I replaced the black ink and the error light is on and the out of black ink light is still on. Won't print


Try it.......

Remove the print head and soak it for three 5-minute cycles in hot (~170 F) distilled water about 3/4 inch deep with continuous mild agitation. The first soak quickly turn the water black, the second end with the water a dark grey color. The hot distilled water dissolved the dried ink in the small ink passages from the cartridges to the ink ejection part of the print head.
Carefully dry the print head as per instructions, clean the electrical contacts on the printer, and placed the print head and the ink cartridges in the printer.Turn off the printer, then unplugged it for one minute.Then turn it on...and print an alignment sheet...

If you need any technical help on printer then you can reach at http://www.vtechsquad.com/

Nov 20, 2012 | Dell 1320c Laser Printer

1 Answer

Problems with my black ink


The lack print head may have blocked ink nozzels.

Inkjet printers need to be used frequently to prevent inkdrying out and blocking the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages,then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer thanreplace the print head.

Jun 15, 2012 | HP PhotoSmart Office Equipment & Supplies

1 Answer

Error code 0xc19a0023


I went crazy trying to fix my HP D7560, days and days of print ink failure, unable to align cartridges, until to clean print heads. My symptom is that the black ink started to print only in a light gray. I tried everything from running Tools, changing to new cartridges, even buying a new print head (which was not genuine HP, they don't make them anymore, and the new print head would'n't complete in diagnostics without error). I love this printer and didn't want to part with it. So I searched for days and tried many solutions without success. Until I found this one last solution - it my last ditch effort. The solution is to get a bowl of very hot water (not boiling), remove the print head from the printer and place the print head directly in the hot water (sounds risky! but I did it). I watched as the bowl filled with black ink. The instructions said to let it sit for 5-10 minutes, but I couldnt' believe the amount of ink that poured out of the print head. So, I kept replacing the water and shaking the print head carefully in the water to loosen the trapped ink. I repeated this step (replacing water) until it was no longer producing black cloud of ink and water was fairly clear. I carefully dried the print head with a paper towel, let sit for approx 5 minutes to dry some more, shook it vigorously a few times to shake out any water, and then lastly hit it with a blast of compressed air to ensure all water droplets were gone. I put the print head back in, re-inserted the cartridges and the printer ran through diagnostics automatically - aligning cartridges and printing a test page - it was BEAUTIFUL!!!! Until I tried this, nothing worked. I'm hoping this solution will help others. Good luck.

Feb 15, 2011 | HP Photosmart D7560 InkJet Printer

1 Answer

HP Officejet Pro L7650 Print head problem


The reason why the printer refuses to print if you get low on one or more colors is that the system runs off negative pressure through the ink lines to the print head. If you were able to continue printing with an empty cartridge you could get air in the respective ink line, disrupt the negative pressure, make it so that that color will no longer print, and require you to get the printer serviced to fix the problem. I own a Cartridge World ink refilling store and I feel this is a good machine (compared to some of the others out there). The only down side with this type of machine is the print heads expiring or getting clogged as you are experiencing. The reason the black is clogged and not the other colors is that the black ink is pigment based and the colors are dye based. The pigment based inks do tend to clog print heads over time. You can try to rehydrate the print head with warm distilled water. if you can't get it working to your satisfaction you can buy a new black/yellow print head for $72. With this type of printer you should print at least one black and white and one color document per week to keep the print heads fresh. If they sit too long without ink flowing through them then they can get clogged and print poorly. I hope this helps belay some of the resentment you hold towards your printer.

Nov 22, 2009 | HP Officejet Pro L7680 All-In-One Printer

2 Answers

Black ink not coming through


I had the same problem. Ended up replacing the black/yellow "printhead" and that corrected the problem.

Jun 08, 2009 | HP Officejet Pro L7580 All-In-One InkJet...

1 Answer

Epson Stylus CX5000 blurry or smudged printing


epson uses pigmented ink and compatibles use dyes and thus if the paper is not of good quality then you can have this problem.

do the following

change the paper and try.

As there will be ink in the head and the ink feed tubes , print some 10 -15 copies of all color prints so that the original ink starts to get into the head and then the paper.

this should solve your problem

Also use your printer every 2 -3 days if you dont have any prints then give a noozle check and then switch off the printer. This will avoid the printer from doing a head clean very time you switch on the printer and also the ink will give you more output as there is less amount of head cleaning

bye

Aug 09, 2008 | Epson Stylus CX5000 InkJet Photo Printer

1 Answer

Stripes on Images only - Text OK


Perhaps the CMY color heads need alignment. If you have not already done so, run a head alignment from the driver maintenance section. It will print out a page containing several lines and text, and request you select the closest-aligned images. After this is done, do another image print to check for improvements.
Normally, the printer uses the black cartridge for text and the CMY inks for images (even for black on photo and specialty paper). So when you are printing normal text pages on plain paper, only the black ink is used. A good check for this would be to print a normal text page, but select photo paper in the driver to trick the printer into using the CMY inks to make a substitute black text page. If this looks ok, then you are having issues other than cartridge alignment.

May 24, 2008 | Canon BubbleJet i560 InkJet Printer

2 Answers

Will not print 6BK


Please see the Canon link below, and as Canon links return generic pages, type in "missing black print" (without quotes) or something of that nature. The results will include Reseat/remove printhead, among others. I have reproduced that content for you below, but I would also add that a number of folks have issues with black print cartridges, and it seems this is an issue that is fairly widespread, as one of the results is that your printer may need repair. If you have tried more than one cartridge with the same result, suggest consulting support if you don't think your usage justifies a new print head - especially if you are still under warranty. Page link is:

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=10444
---------------------From Canon-----------------------
Issue: How do I reseat / remove the print head?
Solution: Reseat MP750 / MP780 print head

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.
  1. Close the Inner Cover 2.
  2. Close the Inner Cover 1.
  3. Pull the Scanning Unit Lever towards you to close the Scanning Unit.
  4. 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.
-------------------------------------
Please post back if you need additional help. Otherwise, thanks for rating FixYa!

May 15, 2008 | Canon PIXMA MP780 All-In-One InkJet...

Not finding what you are looking for?
Canon PIXMA MP780 All-In-One InkJet Printer Logo

175 people viewed this question

Ask a Question

Usually answered in minutes!

Top Canon Office Equipment & Supplies Experts

kakima

Level 3 Expert

102366 Answers

old marine
old marine

Level 3 Expert

1973 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Are you a Canon Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...