Epson SureColor T5470M User Manual page 179

4. Using the indentation on top of the cartridge, pull the old cartridge out of the printer.
5. With the label facing you, slide the new ink cartridge all the way into the slot.
Note: Make sure to insert the cartridge into the correct color location
6. Repeat steps 3 to 5 as necessary to replace any other cartridges.
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