Canon PIXMA Pro9000 Mark II color printing problem

[utahguy]

Similar to this post, my Canon PIXMA Pro9000 Mark II suddenly started printing magenta instead of yellow. Unlike that post, it only does this on some images. I've looked at the sponges where the carts fit into the print head, and can't detect any contamination.

I haven't found what triggers the behavior yet. My first question is: Has anyone experienced this, and how did you solve it?

My next question is: Do you have any suggestions for troubleshooting further? I haven't fully ruled-out that it's not a cracked print head as per the referenced post, but the fact that it doesn't always turn yellow into magenta makes me think a cracked print head is less likely.

Background

I'm running Mac OS X 10.9.4. I printed from Preview. (I also tested this on another computer also running Mac OS X printing from Adobe PDF Reader.) The original image is a PDF. The captured images are PNGs. These are pretty simple images - my test image is -

The original PDF image.

When printed, it looks like this -

Photo of printed original.

However, if I print the test pattern or a different yellow image, it prints fine -

Yellows printing in other contexts.

Or, if I just capture the sticky-notes portion of the image, it seems to print fine, though it does have some magenta near the bottom -

Part of the original PDF screen-captured to PNG & printed acceptably.

Finally, I thought there must be a problem with the PDF, so I captured the entire page as a PNG and printed that. Unfortunately, the result had the same problem.

 

[xrdbear]

bump for this unusual problem.

 

[John Little]

Unlike that post, it only does this on some images.

If I understand correctly, and there are some images that always print this way and others that never do, then it's not the printer. If the behavior is inconsistent or intermittent that's a different story.

 

[utahguy]

Thanks for the responses. I purchased a Canon Pro-100. I ran the same test on both printers - printing the yellow sticky-note image - and the Pro9000 prints it magenta while the Pro-100 prints it correctly.

It's an answer - as I looked at possibilities to repair the Pro9000, I realized that, compared to $150 (post rebate) for the Pro-100, any repair I'd make on the Pro9000 would be close enough that it's not worth doing.

Anybody want a used Pro9000 that sometimes prints yellow as magenta?