HP LaserJet 4200 / 4300 / 4240 / 4250 / 4350 Top Cover Removal - YouTube
Encompass HP 4250 Toner Replacement for Q5942XQ5942X | eBay
SALE Genuine HP 4250 / 4350 / 4240 Dual Pack High Yield Toner Cartridge Q5942XD - Advantage Laser
Toner Bank Compatible Toner Replacement for HP 42X Q5942X for Laserjet 4250 4200 4350 4300 4250N 4350N 4250TN 4250DTN 4350DTN 4350TN Printer (1-Pack Black) - Walmart.com
HP Q5942A Toner Cartridge - HP 42A Toner Black @ $39.99
HP 26X Black High-Yield Replacement Toner | Monroe Systems
HP 42X (Q5942X) Black (2 Pack), High Yield Toner Cartridge Replacement for HP LaserJet 4250, HP LaserJet 4350 by Printel | Price: $87.28 | Cartridge Products | Partsmart
Catch Supplies Compatible Toner Replacement for HP 42A Q5942A Q5942X Q1338A for HP Laserjet 4250 4200 4350 4300 4250N 4240 HP 4350N 4250TN 4250DTN 4350DTN 4350TN Printer (Black, 1-Pack) - Walmart.com