Green cast on 4th refill CLI-521 on iP4700

[Big_Al]

a nozzzle check is the first action to take when a questionable print is made, the results are invaluable

I do a nozzle check every week or two, and haven't seen any difference compared to prints I made with the OEM ink when the iP4700 was brand new. This isn't to say there aren't differences, it's just not a good test for colour shifts, it's only meant for seeing if there's any blocked jets. Greyscales tell the real story. I use a page of grey squares with RGB values from 0,0,0 to 245,245,245 in steps of 5. Viewed under daylight, with a real greyscale poster for comparison next to it, I can tell if there's any colour balance shifts quite easily.

Hi,
Is it possible to give a link to the page of grey squares with RGB values from 0 0 0 to 245 245 245? I would like to use something like that in my printing.
Al

 

[The Hat]

I've had no problems on the first 3 refills of OEM Canon 521 cartridges using OctoInk Image Specialists inks, using easy German method refilling. The colours are close to OEM, no fading on test prints in a window - almost perfect really. On the 4th refill there's a severe green cast which I can fix quite well by turning up the Magenta in the driver by +16, which seems to suggest a restricted magenta flow rate. There's no jet blockages evident by the way. All I can think of as the cause was when I had filled the magenta 521 and waited a few minutes for it to settle, I topped it up and likely didn't have the needle fully into the non-foam ink chamber as I saw a little ink flow backwards. This must have been 1/4ml or less before I realised. Is this enough to finish off a cartridge?

The problems youre having with your colour shift might well be down to the fact
that not all of your cartridges are using only the new I.S. inks.

It takes some time for the OEM inks to be completely drained out of each cartridge,
several refill minimum, but thats on all of them not just one or two.

The best way of resolving your problem would be to purge all of your dye ink cartridges
and then refill with your new inks and try your greyscale test again..

 

[mikling]

Is your shift similar to the picture on the far right?

 

[Photofan1986]

I'm having a very similar problem with my MP540, oem canon ink tanks and image specialist inks. I purged the tanks, but still I cannot get close to a correct colour balance.

 

[inkoholic]

I'm having a very similar problem with my MP540, oem canon ink tanks and image specialist inks. I purged the tanks, but still I cannot get close to a correct colour balance.

Have you tried adjusting the sliders in the "colour options" menu? What I would try is increasing the magenta.

 

[mikling]

It looks like some of you might be thinking that something is wrong with your printer if you are getting the tones as shown previusly on the far right.

However, there is likely nothing wrong with it, and thus this message will minimize anxiety. The issue is that beginning with the shorter cartridges from Canon ( CLI-221/521/226/526) , the colors CMY diverged quite a bit from the previous generation CLI-8 colors. Many sellers did not want to stock another set of colors, so the mfr. obliged and reused the CLI-8 inks.

So you are likely filling your cartridges with CLI-8 colors and "physically" nothing is wrong with that. However, for more picky users, the divergence from the Canon OEM colors is sometimes too much and will show up especially on gray scales/tones.

I spent a considerable amount of time, anguish and expense to personally tint the colors using a combination of ink colors from the BCI-6 and CLI-8 to allow acceptable gray tones. There were missteps along the way and I paid the price. The three pictures on #13 illustrate the differences between the CLI-8 colors ( FAR Right) that just about every seller of IS ink will offer and the tones that I personally put together ( using IS inks) to allow acceptable tones with standard settings with no adjustments ( Far LEFT). The middle is used as a reference printed with a custom profile. The custom tinting allows simple printer settings and removes the green/blue cast without using any adjustments or ICC profiles. So there is a solution.

For the serious user, ICC profiles are also provided to get the most these printers are capable of.

 

[geocha]

does anybody have any kind of profile for IS inks and canon to give it a try?

 

[mikling]

I have profiles but it is for the custom tinted inkset . The custom set is the only set I will supply for these new cartridges so that users can get a nice output without complications on any application not just color managed ones. The profiles are for the user who wants to max out the possibilities.

 

[Photofan1986]

Thanks for the explanation. I had a look at the inks I'm using (bought from Octoinkjet.uk) and I noticed that the Cyan and yellow inks have a CLI reference, but that the magenta ink is the same for the CLI-8 and the CLI-521 carts. That's what on the website anyway. Is it possible that the magenta is actually a little off, which makes the overall colour balance odd?
Here is the link to the website:
cyan :http://www.octoink.co.uk/products/Canon-Compatible-CLI%2d521C-Ink-%2d-Cyan.html
magenta: http://www.octoink.co.uk/products/Canon-Compatible-CLI%2d521M-Ink-%2d-Magenta.html

 

[geocha]

I have profiles but it is for the custom tinted inkset . The custom set is the only set I will supply for these new cartridges so that users can get a nice output without complications on any application not just color managed ones. The profiles are for the user who wants to max out the possibilities.

Can you send me one just to try it out?

Thanks!!!!!!