I have had my Romeo E350 for about three years now, and I have until recently been able to use both the small cup and the large cup. When using the large cup function, I was also able to press it again to make the machine stop brewing. Now, when I use the large cup function it keeps on brewing until it either goes out of water, I turn off the main switch or when it has brewed enough coffee for five normal cups.

Coffee Makers & Espresso... - Nespresso - Romeo E350 Espresso Machine