How often should I shake the ink cartridges?

To maintain print quality, you must do the following:

• Shake the White ink cartridges at the start of every working day or when a message is displayed.
• Shake the color ink cartridges at least once a month.

Shake each cartridge as shown below. For new ink cartridges, rapidly shake each cartridge for about 15 seconds. For White ink, flip the cartridge over as shown and repeat.

Caution:
Do not touch the IC chip on the end of each cartridge; otherwise, the cartridge may not be recognized, or the printer may not print properly.