Although all this is relatively simple to describe, the realization of a good functioning depends on succeeding in making this complex balance of gravity, pressure and capillarity work, and it is therefore essential that a correct coupling between [[nib]] and [[feeder]] occurs. Still today it happens to find fountain pens that present more or less marked problems of operation, like difficulty to start the writing or ink losses. | Although all this is relatively simple to describe, the realization of a good functioning depends on succeeding in making this complex balance of gravity, pressure and capillarity work, and it is therefore essential that a correct coupling between [[nib]] and [[feeder]] occurs. Still today it happens to find fountain pens that present more or less marked problems of operation, like difficulty to start the writing or ink losses. |