REGISTER;
https://unbegrenztdruckenmitecotank.epson.ch/
Print meter reading and reorder

Exactly, as described above, you have to register with EPSON and then when you have used up the ink supplied, you have to print out the counter reading of the printer and can then reorder from EPSON!

See product description: "[...] In addition to the printer (incl. the standard scope of delivery), the customer will find an "unlimited printing" flyer incl. registration code in the box [...]" For the 'Unlimited' service, you must register within 14 days of purchase at https://unbegrenztdruckenmitecotank.epson.ch/.