HP 9170-2437 Ferrite Assembly is a ferrite part for the integrated scanner assembly (ISA) in compatible LaserJet Pro MFP printers. The repair manual places it among the document feeder and image scanner assemblies, identifying its role as a component of that scanner area.
The part number is 9170-2437. It is distinct from ferrite 9170-2664, which the manual separately associates with M426fdn, M426fdw, M427fdn and M427fdw models.
The listed applications are HP LaserJet Pro MFP M329DN (W1A23A), M329DW (W1A24A), M426DW (F6W13A), M427DW (C5F97A), M427FDN (C5F98A), M427FDW (C5F99A), M429DW (W1A33A), M429FDN (W1A34A) and M429FDW (W1A35A).