HP OJ4650 Guida Utente

If an error occurs after a cartridge is installed, or if a message indicates a cartridge problem, try removing the

ink cartridges, verifying the protective piece of plastic tape has been removed from each ink cartridge, and

then reinserting the ink cartridges. If this does not work, clean the cartridge contacts. If the problem is still

not resolved, replace the ink cartridges. For information about replacing ink cartridges, see 

.

The cleaning procedure should take only a few minutes. Make sure that the ink cartridges are

reinstalled in the product as soon as possible. It is not recommended to leave the ink cartridges outside of

the product longer than 30 minutes. This could result in damage to the ink cartridges.

Check that power is on.

Open the cartridge access door.

Remove the cartridge indicated in the error message.

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 the small gold-colored dots on the ink cartridge.

Electrical contacts

Wipe only the contacts with a damp lint-free cloth.

Be careful to touch only the contacts, and do not smear any of the ink or other debris

elsewhere on the cartridge.

On the inside of the printer, locate the contacts in the print carriage. The contacts look like a set of gold-

colored bumps positioned to meet the contacts on the ink cartridge.

Use a dry swab or lint-free cloth to wipe the contacts.

Reinstall the ink cartridge.

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Chapter 9   Solve a problem

ENWW