Pro 9000 MK II Colour printing issue (test prints attached)

.cotton

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Hi,

My canon Pro 9000 MKII has been incapable of making colour prints for some time now. It will print the first inch or two perfectly, then print the rest of the image with a purple colour cast.

I have tried countless deep/regular head cleans and alignments.

B&W prints come out good, so long as I check 'greyscale' in printer dialogue.

My os is Mountain Lion 10.8.5.

Octoink (Image Specialist) ink refill in OEM cartridges.

Please see attached scans for illustration, all prints were done immediately after ink refill, clean and alignment. The jpg is the original test image I downloaded, the PDF contains the test print, nozzle check and alignment check.

Anyone able to advise?

Thanks in advance,

dot
 

Attachments

  • 140422_Canon Pro 9000 Testprints.pdf
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  • PDI Test Image.jpg
    PDI Test Image.jpg
    144.5 KB · Views: 1,983

The Hat

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Hi Dot,
You have a classic case of ink starvation in your cartridges and any amount of cleaning the print head and wasting your ink won’t solve your problems.

I would suggest not printing any more photos till you can resolve this problem and just use nozzle check to make sure you have a full complement of ink in all your cartridges.

The yellow cartridge is the one that is failing to deliver sufficient ink so I would purge that cartridge and start again with it, just make sure that the cartridge dribbles a little bit before reinstalling it.

When you get a good nozzle check again try printing this colour test and if it prints ok then you have solved you poor ink flow problem..



colour-check-png.896
 

.cotton

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Hi Hat,

Many thanks for the reply.

So yellow cartridge starvation explains why the printer will always print the first inch or two of a colour image perfectly, but give purple cast to the rest of the image? Seems a bizarre symptom...

I'd be really glad if all that needs fixing is the yellow cartridge, I'll buy a new one to save the hassle of purging and cleaning, and report back when I do.

Best,

dot
 

.cotton

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Quick update,

Please see attached test print that The Hat gave me. Appears that there is indeed something up with the yellow.

Would you also say that there's something wrong with the Magenta (banding in SWOP and resolution tests)?

Please let me know what replacement cartridges I should order to save on shipping costs.

Cheers,

.
 

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  • test 2_0001.pdf
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.cotton

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The Hat,

Thank you so much!

I searched Ink starvation and found another post by you that suggested tapping the cartridges to reseat the sponge.

I did this and my prints are coming out almost perfect.

The only problem now is that the greys are printing a little warm (please see attachment). Anything I can about this?

Cheers,

.
 

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  • test 3.pdf
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The Hat

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Well congratulations is in order well done, so please remember not to continue to print once you can see a problem with your output from now on, otherwise you may ruin your print head because it needs of flow of ink to keep it cool during printing.

Regarding your test print, yes it has too much red in it so you may have to tone it down a bit in your print set up or perhaps get a profile for the ink and paper you use..
 

.cotton

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Thanks Hat,

I tried to print an A3 Image after the positive results.

It printed half the image with good colours and then the problem returned. Tapping the cartridge again results in the same, with half a good print followed by purple cast. I have ordered a new yellow cartridge, do you think that this will be enough to resolve the issue?

Re: red greys, it shows regardless of paper type. I use a variety of paper types so getting custom profiles may be a little costly/inconvenient. I am using Octoink in a pro9000ii, is there a simple guide for adjusting these settings? I just want the inks to behave the same as OEM with any given paper.

Cheers,

.
 
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