These printers use the Q5942X cartridge:

HP LaserJet 4200

HP LaserJet 4200 DTN

HP LaserJet 4200 DTNS

HP LaserJet 4200 DTNS1

HP LaserJet 4200 DTNSL

HP LaserJet 4200 N

HP LaserJet 4200 Series

HP LaserJet 4200 TN

HP LaserJet 4250

HP LaserJet 4250 DTN

HP LaserJet 4250 DTNSL

HP LaserJet 4250 N

HP LaserJet 4250 TN

HP LaserJet 4300

HP LaserJet 4300 DTN

HP LaserJet 4300 DTNS

HP LaserJet 4300 DTNS1

HP LaserJet 4300 DTNSL

HP LaserJet 4300 N

HP LaserJet 4300 Series

HP LaserJet 4300 TN

HP LaserJet 4345 MFP

HP LaserJet 4345 X MFP

HP LaserJet 4345 XM MFP

HP LaserJet 4345 XS MFP

HP LaserJet 4350

HP LaserJet 4350 DTN

HP LaserJet 4350 DTNSL

HP LaserJet 4350 N

HP LaserJet 4350 TN

HP LaserJet M-4345 MFP

HP LaserJet M-4345 X

HP LaserJet M-4345 XM

HP LaserJet M-4345 XS

Kodak DIGITAL SCIENCE 1000 PS

TROY-Systems Troy 4200

TROY-Systems Troy 4200 EX

TROY-Systems Troy 4250

TROY-Systems Troy 4250 /T

TROY-Systems Troy 4250 /T SECURE

TROY-Systems Troy 4250 /TSECURE EX

TROY-Systems Troy 4300

TROY-Systems Troy 4300 SECURE

TROY-Systems Troy 4300 SECURE EX

TROY-Systems Troy 4350

TROY-Systems Troy 4350 N/NT

TROY-Systems Troy 4350 N/NTSECUEX

TROY-Systems Troy 4350 N/NTSECURE