Epson WorkForce ST-M3000 Monochrome MFP Supertank Printer - Manual (Page 191)

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You see a screen like this:
4. Select Add Entry .
5. Select Add Contact .
You see a screen like this:
6. Select the registry number you want to use for the contact you are adding.
7. Select the Name field, use the displayed keyboard to enter the contact name (up to 30 characters),
and select OK .