HP Deskjet 950c Printer - Manual (Page 42)

Using and Caring for Your Print Cartridges 3
35
Damage Resulting from Refilling the Print Cartridges
To get the best performance from your printer, Hewlett-Packard recommends
using only genuine HP supplies for HP DeskJet printers, including genuine
factory-filled HP print cartridges.
Damage resulting from the modification or refilling of HP print cartridges is
specifically excluded from the coverage of HP printer warranties.
Note:
When buying replacement print cartridges, check the part numbers
carefully. The print cartridge numbers for your printer are:
Black HP 516 45 Series
Tri-Color HP C65 78 Series