3Using and Caring for Your Print Cartridges
Damage Resulting from Refilling the Print Cartridges
To get the best performance from your printer,
Damage resulting from the modification or refilling of HP print cartridges is specifically excluded from coverage by HP printer warranties.
Note: When buying replacement print cartridges, check the part numbers carefully. The print cartridge numbers for the 640C, 640CL, and 642C printers are:
Black HP C6614 Series
Photo HP C1816 Series
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