BURFLO 32V 1560mA 0957-2105 Ac Adapter 0957-2269 for HP Photosmart B210 C7250 C7280 C5180 Officejet 2620 4500 6000 6500 7500A Deskjet 6840 6940 All-in-One Printer 0957-2286 Power Supply Cord Cable
HP Deskjet 6840 Troubleshooting - iFixit
HP Deskjet 6840 Ink Cartridge
Printer Essentials for HP 95 - HP Deskjet 5740 / 6540/ 6840 - Color High Yield - RM8766 Inkjet Cartridge
Amazon.com: HP DeskJet 6840 Color Printer : Office Products
hp deskjet 6840 - Apple Community
HP 96 (C8767WN) (2 Pack) Inkjet Cartridge Replacement for HP Deskjet 5740, HP Deskjet 6540, HP Deskjet 6840 by Printel | Price: $11.62 | Cartridge Products | Partsmart