Printer Repair

Board-level work on laser printers — formatters, engine boards, NVRAM

Printers are the forgotten corner of board-level repair. They are full of interesting silicon, they store far more state than people expect, and almost nothing about their internals is documented publicly. Most “repair” advice on the internet stops at “replace the formatter board”, which is neither cheap nor always effective.


HP LaserJet

HP LaserJet Pro and Enterprise formatter boards