Chosen Solution
My HP Laser Jet 1012 printer successfully prints a page, but will not feed through the printer entirely and a second page becomes jammed in the feed mechanism
I believe there are maintenance kits for these models which are usually expensive, but more times than not it’s the pickup roller. Try another toner as well. I have seen in certain printer models where the toner can cause jams.
The User Manual (which you can get online) recommends: Cleaning the pickup roller with a lint-free cloth and rubbing alcohol. Just tried that and it enabled my printer to grab 3 pages one after the other (instead of jamming after just one).Alternatively, replacing the pickup roller. I see you can order some on Ali Express. Haven’t tried that yet. In the meantime, a temporary solution is to stand by the printer while it prints and manually load one page at a time.