Epson WF-8590 User Manual page 322

Caution: Do not touch the green chip on the cartridge. Install the new cartridge immediately after
removing the old one; if you do not, the print head may dry out and be unable to print.
7. Gently shake the ink cartridge horizontally for about five seconds as shown.
Caution: Do not remove any labels or seals, or ink will leak.
8. Insert the new cartridge into the holder and push it in until it clicks into place.
9. If the Check option is displayed on the LCD screen, select it to make sure the cartridges are installed
correctly.
Caution: If you see a message that an ink cartridge is installed incorrectly, press in the ink cartridge
until it clicks into place.
10. When you are finished, close the front cover.
The product starts priming the ink and returns to its previous state when finished.
Note: Do not turn off the printer during ink replacement.
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