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3Using and Caring for Your Print Cartridges
Replacing Print Cartridges
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
Tri-Color
Photo HP C1816 Series
Note: When a print cartridge runs out of ink, leave the empty cartridge in the cradle until you can replace it. The printer does not print with only one print cartridge in the cradle.
To replace a print cartridge:1 Press the Power button to turn on the printer.
2 Open the top cover and raise the cradle latch. The print cartridges move to the center of the printer and the Resume light flashes.
3 Lift the print cartridge out of the cradle and discard it.
Keep print cartridges out of the reach of children.
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