So as a follow-up to my previous inquiry about this machine, I have it mostly up and running, but I'm still struggling with a baffling print quality issue.
I've replaced the printhead with a new genuine Canon OEM one. I also installed a new maintenance cartridge.
When I run the nozzle check, it mostly looks good, except the black blocks are still missing a few little spots here and there and (really oddly) the upper right yellow block is missing completely.
I mean, it seems like there should be 2 of each color, but there's only one yellow grid.
How is this possible? When you replace the printhead, doesn't that replace all the nozzles?
When I print full color plots, I notice banding, so there's definitely something still not right.
I also occasionally get a hardware error 03800500-2F42, which I've looked up, and appears to point to a printhead.... okay...
I'm lost here...
The attached image shows the banding issue.
20230124_141801 (Medium).jpg
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