Actually using OS11 Big Sur, but similar problems with 10.XX. 1) Scanner head moving back and forward all the time, even when machine has not been in use for ages. The only way to stop it is to shut the unit down. 2). Very often, simply won't print, so I have deselect printer and reset it in settings. This happens more after scanning something. 3) often starts with blank pages. I have done everything recommended, many times, including reinstalling latest version of HP software, deselecting and reselecting it in printer system preferences, various types of hard and soft resets. Sometimes works for a bit, but then stops. USB connected, so not a wi-fi problem (tried that - if anything that made things worse). Any advice that actually solves these problems would be greatly appreciated. Thanks
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