Pixma G620 not printing greens or blues

[kennydav]

My Pixma is a few years old and I've never had much trouble with it. Today I was printing stuff for my classroom and everything that should be green is printing yellow. The blues are also giving off pink tones. The inks still seem to be at a pretty high level- the only one that is below half is black. I've also run the cleaning cycles and all that and nothing changes. Is there something that I'm missing? Would a low black level affect those colors? 

[jrhoffman75]

Welcome.

To clarify your posting - you said you ran the cleaning cycles. Did you print a nozzle check? Does it look correct?

Canon Knowledge Base - Printing and Examining the Nozzle Check Pattern - G620

[kennydav]

I did not- I just ran the nozzle check. On print head L, there's nothing showing on gray and the black looks gray. On print head R, there's nothing that's printed on cyan. 

[jrhoffman75]

OK. If you ran three deep cleanings and nothing changes then you are probably looking at a new print head.

If that's the case then you have nothing to lose by trying so of the head cleaning hints on YouTube.