Epson XP-610 User Manual page 212

7. Remove the cartridge from the package.
Caution: Do not touch the areas shown above. Doing so may prevent normal operation and printing.
8. Remove the cap from the cartridge and store it in the bag that came with your product for later use.
Note: Save the cap so you can recap ink cartridges before storing or disposing of them.
Caution: Do not remove any other labels or seals, or ink will leak.
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