G4210 micro lines, dirty rollers or worn head?

May 21, 2022
G4210 canon tank printer - whenever I print 4x6 photos on glossy paper I get these mico black lines down one side of the photo. I have tried various cleaning methods, deep, flush, roller etc to no avail.

Am I missing something here? Can I somehow take the print head out and clean it. Is it time to replace the heads? Had the printer for a few years and thank dog have a insurance policy on it as I knew it was going to be trouble.

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