3.Locate the ink cartridge that is indicated in the error message, and then press the tab on the ink cartridge to release it from the slot.

4.Hold the ink cartridge by its sides with the bottom pointing up and locate the electrical contacts on the ink cartridge.

The electrical contacts are four small rectangles of copper or gold-colored metal on the bottom of the ink cartridge.

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Ink window

Electrical contacts

5.Wipe the contacts with a dry swab or lint-free cloth.

CAUTION: Be careful not to move any ink or other debris onto the clear plastic ink window next to the contacts.

6.On the inside of the product, locate the contacts in the print head.

The contacts look like a set of four copper or gold-colored pins positioned to meet the contacts on the ink cartridge.

Troubleshooting

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HP D5400 manual Ink window Electrical contacts