In most cases crooked feeding is due to some type of blockage, a small piece of paper being very common, followed by paper clips or staples. In cases where rollers are not accessible the best option is to floss the paper path by forcing a stiffer piece of cardboard or thin mylar through the paper path in the direction of normal paper travel. NEVER push against normal flow of paper or you can damage sensors.
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I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.
