I recently bought the HP Envy Pro 6420 because it said it could use thicker stock. I am trying to print on 260gsm and when I try misaligns and doesn't give me the full image or prints a half or quarter then spits it out. There are no error messages and ink is new/full. I have tried loading one sheet at a time or filling it up and I always use the paper guides to hold it in.
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