Interestingly the bulk of that printer didn't come from HP. Canon made the print engine and HP (alongside Apple and a few others) put their controller inside it.
It was probably the peak for reliability, I worked for a company that sold a lot of them and the failure rate increased quite noticeably when they introduced the LaserJet 4.
It was probably the peak for reliability, I worked for a company that sold a lot of them and the failure rate increased quite noticeably when they introduced the LaserJet 4.