Canon iX6820 not printing with all black cartidges

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thalo52
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Joined: Wed Jan 13, 2021 3:55 pm

Canon iX6820 not printing with all black cartidges

Post by thalo52 » Mon Aug 30, 2021 10:34 pm

I am having issues printing with all black cartridges. It was printing the top 2.5" fine and then below that is streaky and not solid. After numerous prints (on copy paper) there is no print at all. I had run head cleaning, deep head cleaning and the test prints were okay. I printed the image using just the printer standard driver (not PrintFab) and the image printed fine.

Settings are for printing films for screen printing, as specified in this thread: https://www.turboprint.info/support/viewtopic.php?f=22&t=7659
Using Adobe Illustrator.

Any thoughts?

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Tue Aug 31, 2021 3:35 am

20210830_201249 (1).jpg
20210830_201249 (1).jpg (174.09 KiB) Viewed 433 times
20210830_201252.jpg
20210830_201252.jpg (202.49 KiB) Viewed 433 times
Printing comparison of Media Type selections

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Tue Aug 31, 2021 3:37 am

20210830_201301 (1).jpg
Media Type: Transparent CF102
20210830_201301 (1).jpg (78.75 KiB) Viewed 432 times
20210830_201311.jpg
Transparent detail
20210830_201311.jpg (145.93 KiB) Viewed 432 times
Media type details of Transparent CF102

zedonet
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Re: Canon iX6820 not printing with all black cartidges

Post by zedonet » Tue Aug 31, 2021 2:09 pm

Hello, thank you for posting the photos. You should first check if the print head is fully functional by printing a "nozzle test". This can be done from the PrintFab application, dialog "Toolbox" -> button "Nozzle Check". The nozzle test page should look similar to this one

examinenozzlecheck.jpg
examinenozzlecheck.jpg (23.35 KiB) Viewed 430 times

The staircase pattern at the top must be complete and all the color fields (that will be printed in black with an all black ink cartridge set) should not contain white lines. Please post a photo of the nozzle test page.

thalo52
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Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Tue Aug 31, 2021 3:43 pm

Here is an image of the last test pint I did just after a Deep Cleaning through the printer driver maintenance (not using the PrintFab driver).
The grid did print correctly, it may not appear so in the image.
20210831_083756 (1).jpg
20210831_083756 (1).jpg (82.7 KiB) Viewed 427 times

zedonet
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Re: Canon iX6820 not printing with all black cartidges

Post by zedonet » Tue Aug 31, 2021 4:11 pm

Thank you for the photo. Two cyan and two magenta fields are empty, these are the "fine cyan" and "fine magenta" nozzles, they might be blocked because the pigment in the UV ink is too large for the fine nozzles.

You can try to disable Cyan and Magenta of the all black ink set:

multiblack-disable-cyan-magenta.png
multiblack-disable-cyan-magenta.png (31.02 KiB) Viewed 424 times

I can also create an experimental driver file for you that switches off the fine nozzles.

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Tue Aug 31, 2021 5:50 pm

Thanks, I will try that. I have also reinstalled the driver but have not tested it yet.

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Tue Aug 31, 2021 7:59 pm

Tested with Cyan and Magenta disabled. When I print with Media Type as plain paper it will print. When I change to Transparent CF102 it does not print at all. It runs the paper though the printer and the print heads are going through the action of printing, not leaving any ink on the paper.

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Wed Sep 01, 2021 4:26 am

I have a question about your comments of the fine Cyan and Magenta nozzles. The iX6820 only has 5 ink cartridges, C, M, Y, and 2K. Are the fine nozzles a mechanical solution for lighter applications of these two colors? If printing a transparency, would these still be used and why, if clogged, would it prevent any kind of decent printing if all the other 5 (CMY2K) nozzles are being used?

Just some thoughts.

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Fri Sep 03, 2021 6:43 pm

So a final bit on this...

I removed the print head and cleaned it out thoroughly. I printed a test page and it printed well, then additional tests did not print well. With your comment of print nozzles being clogged I decided to call the ink manufacturer and learned the ink I have been using is for Epson printers and will not work for Canon printers. I have ordered some appropriate ink and will see how things go from there.

Thanks for your help and recommendations.

thalo52
Posts: 12
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 » Sat Sep 11, 2021 9:46 pm

One last note for anyone that reads this.

I did get the appropriate ink for my printer, installed new cartridges and filled with ink. Now all is printing correctly.
NOTE: get the correct ink for your printer brand.

zedonet
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Re: Canon iX6820 not printing with all black cartidges

Post by zedonet » Thu Sep 16, 2021 9:40 am

Thank you for the helpful information!

You asked earlier if the fine nozzles are a replacement for lighter application of cyan & magenta (instead of using photo cyan and photo magenta ink) - yes, this is correct.

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