The DeLonghi ESAM family of products is a line of automatic coffee machines for making lattes, cappuccinos, espressos, and other drinks. Look for the model number ESAMxxxx on a sticker on the back or bottom of the device.
After using Pre ground coffee, my delonghi magnifica has started dosing really small pucks resulting in weak coffee. Any ideas? Have reset to factory, lubed diffuser and changed O-rings.