Compatible HP 15 C6615D Black Ink Cartridge for HP Deskjet 810c 812c 816c 817c 825c 840c 841c 842c 843c - China HP Ink Cartridge, HP Ink Cartridges | Made-in-China.com
HP C6625AN 17 Ink Cartridge Tri-color Deskjet 825 825c 825cvr 840 840c 841 841c 842 842c 843 843c 845 845c 845cvr - Sun Data Supply
HP Deskjet 840c Printer Software and Driver Downloads | HP® Support
HP DESKJET 840C INKJET STANDARD COLOR PRINTER FULLY FUNCTIONAL CLEAN SEE PICTURE | eBay