Canon iX6820 not printing with all black cartidges

thalo52
Posts: 15
Joined: Wed Jan 13, 2021 3:55 pm

Canon iX6820 not printing with all black cartidges

Post by thalo52 »

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: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

20210830_201249 (1).jpg
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20210830_201252.jpg
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Printing comparison of Media Type selections
thalo52
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Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

Media Type:  Transparent CF102
Media Type: Transparent CF102
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Transparent detail
Transparent detail
20210830_201311.jpg (145.93 KiB) Viewed 28157 times
Media type details of Transparent CF102
zedonet
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Re: Canon iX6820 not printing with all black cartidges

Post by zedonet »

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
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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 »

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
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zedonet
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Re: Canon iX6820 not printing with all black cartidges

Post by zedonet »

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 28149 times

I can also create an experimental driver file for you that switches off the fine nozzles.
thalo52
Posts: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

Thanks, I will try that. I have also reinstalled the driver but have not tested it yet.
thalo52
Posts: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

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: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

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: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

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: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

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 »

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.
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 »

Unfortunately I am still having issues printing solid black images for screen printing transparencies. I have re-read your earlier posts and have done some testing. I have also replaced the print head and ink cartridges with appropriate Canon compatible ink.

I am attaching scans of the test pages I printed yesterday and the progression of the fine C and M. You can see from the first image that the C has the first and second lines full, but the third is not complete. Similarly the M has 1st and 2nd, but no 3rd. The 2nd and 3rd for C get worse in the subsequent tests until it is just the 1st in C and M that are solid and nothing in the other two groups.

I did as you recommended and disabled C and M in the settings. I proceeded to print two films. The first came out great, solid black all the way through. The second film was not good, with sections not being printed at all and very noticeable banding ( I will scan and attach this image shortly).

I am checking with the ink supplier to see if there are know issues with their ink and the fine nozzles, I am looking into all aspects to try and get consistent results.

Any thoughts or ideas would be helpful. Thanks for your previous input.
testPrint-01.jpg
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testPrint-02.jpg
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testPrint-03.jpg
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Last edited by thalo52 on Fri Nov 19, 2021 5:12 pm, edited 1 time in total.
thalo52
Posts: 15
Joined: Wed Jan 13, 2021 3:55 pm

Re: Canon iX6820 not printing with all black cartidges

Post by thalo52 »

testPrint-04.jpg
testPrint-04.jpg (59.65 KiB) Viewed 27412 times
zedonet
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Re: Canon iX6820 not printing with all black cartidges

Post by zedonet »

Thank you for sending photos of the nozzle check page. It looks as if the black UV ink is not good for the fine print head nozzles - they are temporarily or permanently clogged.

I could email you a modified driver file that disables the fine nozzles as a "workaround". If you are interested, please let me know which settings you are currently using:

- media setting
- print quality
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