Epson ET-3750 series User Manual page 116

User's Guide
7. When you have finished refilling the ink, remove the ink bottle, and then close the cap of the ink tank securely.
Important:
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Do not leave the ink bottle inserted; otherwise the bottle may be damaged or ink may leak.
Note:
If any ink remains in the ink bottle, tighten the cap and store the bottle upright for later use.
8. Close the ink tank cover firmly.
9. Close the scanner unit.
10. Select the color of the ink you refilled up to the upper line.
11. Select Reset Ink Levels.
12. Confirm the message, and then close the screen.
Refilling Ink and Replacing Maintenance Boxes
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