3Using and Caring for Your Print Cartridges

If You See Ink Streaks...

Clean the print cartridges and the print cartridge cradle by following the instructions below.

1Double-click the HP DeskJet 640 Series Utility icon in the Utilities folder on your hard drive’s main directory.

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2Click the Clean panel, then click the Clean button. If this does not prevent streaks, follow the instructions for “Manually Cleaning the Print Cartridges” below.

Caution Be careful not to get ink on your hands or clothing.

Manually Cleaning the Print Cartridges and Print Cartridge Cradle

In order to properly clean the print cartridges and cradle, you will need distilled or bottled water and cotton swabs or a similar lint-free absorbent material that will not stick to the cartridges.

Manually Cleaning the Print Cartridges

1Press the Power Button to turn the printer on, then lift the top cover.

2After the print cartridges move to the center and stop, unplug the power cord from the back of the printer.

Keep new and used print cartridges out of the reach of children.

3Remove the print cartridges and place them wide side down on a piece of paper.

Caution Do NOT touch the print cartridge ink nozzles or copper contacts. Touching these parts will result in clogs, ink failure, and bad electrical connection. Also, do NOT remove the copper strips; these are required electrical contacts.

4Dip a clean cotton swab into distilled water and squeeze any excess water from the swab.

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