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Black turns purple - Canon Pixma MG 6650

pau67 -  
 Ninjatri78 -
Hello,

I'm posting my question on this forum because I've been having a problem with my Canon Pixma MG 6650 printer for a long time and haven't found a solution yet.
As mentioned in the title, the black comes out purple when printing photos.
I thought it was a nozzle issue, but it's not: printing a test page confirmed this, and the nozzles were thoroughly cleaned not long ago.
No issues with the cartridges either, even though they are generic, they all work perfectly.

I suspect a printing settings issue.
Indeed, I tried 2 printing modes on the same paper but with different settings on the photo software:
- On glossy photo paper (the correct setting for the paper used) in high-quality print: the black turns purple...
- On plain paper (the incorrect setting for the paper used) in normal quality: the black stays black but the print leaves vertical streaks, as if the photo was an assembly of bands....

I tried selecting another type of photo paper in the software and using a different brand of paper, but the black still comes out purple...
The software doesn't allow me to choose a high-quality print for plain paper, so I can't test another decent print quality for another type of paper...

Has anyone encountered this problem before?
I've already sacrificed a lot (too much) of paper and ink to find a solution but nothing works...

Thank you in advance.

2 answers

  1.
    contrariness Posted messages 343 Registration date   Status Member Last intervention   6 243
     
    Your printer is a 5-color (black-yellow-red-blue + "Photo" black)

    If you have used the same black ink in both black cartridges, it will be impossible to achieve a correct result. The technology of the two black inks is different.

    One is a dye-based ink, while the other is a pigment-based ink.

    If this is what you have done, you will need to do a lot of printing with "photo" black to eliminate all the ink before returning to 100% pigment-based ink.
    3
    1. pau67
       
      Hello,

      That's exactly what I did, the 5 compatible cartridges are from the same brand.
      However, I don't understand how this can be a problem since the printer is designed to work this way.

      I don’t recall having similar issues with the same setup but with Canon brand cartridges. Could it be due to the compatible cartridges?

      Would removing one of the black cartridges (the small one, if I understood correctly, which is not a photo special) while printing the photos be a solution in your opinion?
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    2. contrariness Posted messages 343 Registration date   Status Member Last intervention   6 243
       
      If I understood correctly, on this printer you only replace the ink cartridges.. But if you've used the same type of compatible cartridge for both black and photo black, that's probably where your problem comes from...

      But if the compatible cartridges have 2 models for black and "photo" black, you should look into the profiles instead..

      The difference in usage between the black cartridge and the "photo" black cartridge is managed through the print driver when you select the type of document to print...

      If you remove a cartridge, there's a good chance the machine will refuse to print. This is to protect the head from potential air entering during the automatic nozzle cleaning.
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    3. pau67
       
      So if I understand correctly, it seems that the XL black cartridge (the one normally dedicated to "photo" black) is actually a regular "non-photo" black printing cartridge, and that's where my problem comes from?

      Is there a manual setting to adjust at the time of printing or is it a pre-set parameter based on the type of printing?
      0
    4. contrariness Posted messages 343 Registration date   Status Member Last intervention   6 243
       
      It's possible... When the user has large print volumes to handle, some printers allow the use of a standard ink cartridge instead of the "Photo" cartridge... (this seriously increases black print yield) I suppose that if nothing is provided in the printer driver, it's the cartridge chip that switches to this option... But I can't tell you if that's your case... you would need to check the manual for your machine...

      Normally nothing accessible at your level... everything is managed through the print driver according to the type of paper and the installed cartridges.
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    5. Ninjatri78
       
      Hello,
      I am currently facing the same issue as you. Have you found a solution?
      Best regards.
      0
  2. Jojolaguitare Posted messages 12012 Registration date   Status Member Last intervention   2 782
     
    Hello.

    Clearly, there is a "leak" of Magenta and Cyan into the Black. I don't think there are any custom color setting parameters for the print head.

    Try reaching out to technical support, either by phone or by messaging. But certainly in both cases, you won’t get a response before Monday.

    https://www.canon.fr/support/consumer_products/contact_support/

    Best

    --
    There's no point in rushing; you have to leave on time. . .
    0
    1. pau67
       
      Hello,

      Thank you for your response.
      However, I don’t think it’s truly a "bleed" since this purple aspect of the black seems to depend on the printing mode... Unless this "bleed" is actually due to a bad setting on my printer in photo printing (?).
      Do you think that's possible?
      0
    2. Jojolaguitare Posted messages 12012 Registration date   Status Member Last intervention   2 782
       
      Re.

      When I talk about "leak" (in double quotes), it can only be technical and not physical, of course. (leak from the nozzles).

      Seen in a somewhat similar topic about Canon printers on another site.

      >>>To change it, go to the printer settings, in the "main" tab, you have "color/intensity", there, you choose "manual" & click on "set" and there, miracle, in color correction you have "driver correspondence" that you change. Don't forget to save it in a profile, because otherwise, at the next print, you will find the default settings again. <<<

      So it's worth trying if it hasn't already been done.

      See you later . . .
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    3. contrariness Posted messages 343 Registration date   Status Member Last intervention   6 243
       
      Same opinion as Jolaguitare..

      Probably a profile issue... The drivers are calibrated for the use of original inks; if you use compatible inks, the calibration may not be the same..

      Apart from low-quality compatible inks that shift when the print density is too high due to color migration... high print density is what we use for photo quality.
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    4. pau67
       
      It's definitely a lead to explore... thank you both
      But assuming it's indeed a calibration issue (which appears to be visible only at high-density printing), how can we know what calibration to use for the compatible cartridges (apart from trial and error and emptying half the cartridges in the process)?
      0