Nozzle Check and banding Issues on PIXMA G620

[okami]

Hello! I have a Pixma Megatank G620. Recently, I ran into some horizontal banding when I print large images which is what I exclusively use the printed for as it's used for business. I attempted several cleanings, deep cleanings, and an ink flush and cannot seem to get the banding to stop. When I did nozzle checks, you can see that there is a band on the bottom of each of the bars for the left print head. Is there anything further I can do? Or is this something that I should let canon replace since the machine is still under warranty. I just wish they could potentially send me a new print head instead of me having to send the entire machine back to them.

 

[ArthurJ]

Hi,

You can try an encoder cleaning by using the steps HERE.

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[okami]

No good sadly. Same results.