Using and Caring for Your Print Cartridges
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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 C6578 Series