Step-by-step guide to replace compatible drum chip on HP LaserJet MFP M436n. Fix “Replace Imaging Unit” warning, reset drum life counter, and restore printer normal status.
Video shows chip removal, correct orientation, installation, and printer recognition check.
Compatible: HP M436n, M436nda, M433A.

How to replace the 56F0Z00 drum unit chip on Lexmark MS321 laser printer.
Fix drum life end error, reset imaging unit counter step‑by‑step.

This tutorial demonstrates the replace the compatible chip (Model VI3371 fuser ) on the Xerox C5571 copier, including disassembly tips, chip removal and installation。

How to replace the Lexmark MS823dn (58D3U00) toner chip?