Dell P703w All In One Photo Printer - Manual (Page 28)

NOTICE: Use genuine Dell ink cartridges to ensure the best results and avoid printhead damage.
1. Turn on your printer.
2. Lift the scanner base unit from the front.
The printhead moves to a center position. The ink tanks are located in the printhead.
Number Part
1 Printhead
2 Color ink cartridge
3 Black ink cartridge
3. Wait until the printhead is idle and silent, then pinch the pinch latch on the old ink cartridge with your thumb and
forefinger.
4. Lift it out of the printhead.