imagePROGRAF PRO-1000 - Printer printing wrong colours - particularly blue

[sallymason]

My Canon Pro 1000 printer has suddenly started printing colours incorrectly. The colours are generally muted and  particularly noticeable with blues / turquoise.  Whatever compensation I make in the edit, just makes it worse.  I'm on a Mac and use Lightroom.  The same thing happened a couple of years ago and an OS upgrade and re-installing the driver resolved the issue.  This time I've tried the following to no avail: checked ink cartridges (genuine Canon), Print head alignment, Nozzle check, monitor calibration, upgraded from Ventura to Sonoma, removed printer, deleted printer driver, reinstalled printer driver, reinstalled printer, restarted laptop - but still the print colours are incorrect.  I have also spent 2 hours on the phone to Canon and had my case escalated - with no solution. The guy at Canon seemed to think there was a compatibility issue with Sonoma and that it was an Apple issue, but the problem arose when I was still on Ventura after 2 years of working perfectly, so that's not the issue with me.  I'm at my wits end, so any help or advice would be greatly received.  Thanks in advance.

[jrhoffman75]

Thanks. If you print from Preview do you have the same problem?

[sallymason]

Just tried printing from Preview with no improvement.  You may have seen above that I've just been asked to try printing from my iPhone via the Canon app.  The print was much improved but I don't know what this means...

[jrhoffman75]

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@sallymason wrote:

Just tried printing from Preview with no improvement.  You may have seen above that I've just been asked to try printing from my iPhone via the Canon app.  The print was much improved but I don't know what this means...

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Yes I saw that. I suggested trying Preview to see if it was associated with your Adobe apps. It apparently isn’t. 
You should call Canon support at 1-800-OK-CANON to at least register the problem and maybe they have a resolution. 

[sallymason]

Thank you, jrhoggman75.  I spent 2 hours on the phone to Canon Support last week with no solution, but I will definitely try them again. I'm at a loss what else to do at this stage.  

[Lithoman]

Stupid question... Have you tried deleting and reinstalling the printer on the mac? Macs unfortunately use the CUPS backend which could have a funny color profile stuck in it. Deleting and reinstalling the printer as a new instance can fix this. Printing from your iPhone and having things better shows the color shifting is occurring on the mac. I would lean towards the printer install as you stated earlier that Preview did the same thing.

[sallymason]

No question is stupid at this stage....but yes, I have deleted and reinstalled the printer several times along with the driver.  I've tried wireless and with a usb cable.  From all the tests I've done, it would seem the problem doesn't lie with the printer, inks, Lightroom or the operating system (it was playing up before I upgraded to Sonoma) so that only really leaves the printer install/driver.  But as I say, I have deleted and reinstalled several times.  

[Lithoman]

The OS upgrade did come with a new version of CUPS which does play a part in this I am afraid. This is a big reason Canon splits the driver installs between the OSX versions on the support site. I am assuming you have downloaded the latest and greatest. There is also a firmware version that was released in November for this model printer. It is good practice to make sure "both sides of the house" are upgraded to the most current not just one, usually being the driver. Have you tried using the Professional Print and layout app from Canon? It is also on the support site and can help with color management. This is ultimately where it is looking like the issue is. 

[sallymason]

I'm on the CUPS printer driver 29.1.0.0 which I believe is the latest.  I was on firmware 3.010 but received an update alert on the printer home screen saying there was an update to 4.0.  I talked to Canon about this and they told me to upgrade to 4.0 - so I did.  I have tried printing via Professional Print and Layout and still the colours are wrong.  The only success I've had is from the Canon app on the iphone.  I'm wondering whether my icc profiles could have become corrupted....it's the only thing I haven't tried.  

[jrhoffman75]

If you are using Canon paper the driver will install the ICC profiles. 
You could try printing on plain paper from Lightroom or Preview and see what happens. No profile involved. 

[sallymason]

Ah...ok...I just printed from Lightroom on normal photocopy paper, selected Colour Management to be Managed by Printer, set the media type to plain paper and it's printed strong colours.  It's night time here so I'm looking at it in artificial light, but I can definitely see it's more like the iphone print than all the other insipid looking prints lined up on my table!  So what does that mean??