This is why I buy old enterprise LaserJet printers. Also, the toner cartridges are more generous and recycled* ones are relatively cheap. I currently have 4 spares which is probably enough for its entire lifecycle of me printing a return to page to flEaBay or as required by some antique government bureaucratic bullshit that demands the killing of trees.

LJ4 (the plain base model) (2005-2012) -> 4000 (2012-2020) -> M402dw (2020-present).

* Modern HP LJ printer cartridges include goddamn DRM hostile to repeated refilling, but thankfully it's not a show-stopper as overseas hackers found low-cost workarounds with (fake?) chips. Fuck the DMCA and goddamn corporate lobbyists.