IBM Ultimate HP 42A Black Toner Cartridge (Q5942A) (IBM TG85P6478) - HP LaserJet 4350TN toner - HP LaserJet 4000 Series - HP Toner - Toner Cartridges - InknToner UK - Compatible & Original Printer Ink & Toner Cartridges
Compatible Replacement for HP Laserjet 4250 Black Toner Cartridge Q5942X also for Q1338X Q1339X Q5945X Laserjet 4200 Laserjet 4250 Laserjet 4300 Laserjet 4350 : Amazon.co.uk: Computers & Accessories
Hewlett Packard Laserjet 4250 (q5400a) Black Toner #6R959
HP Laser jet 42A Toner Refill | HP Laser jet 4240 / 4250 / 4350 Printer Toner Refill - YouTube
Compatible HP 64A Toner Cartridge | Black (CC364A)