Patent ID: 7583907

Claim:
Method for adjusting a fusing device ( 100 ) of a digital printing machine, comprising the steps of: providing microwave signals of a specific frequency range directed at a printing material ( 5 ), with an applicator ( 8 ) of a measuring device ( 20 ) being pre-heated for feed-through of the printing material ( 5 ) such that a change between the microwave signals reflected by the printing material ( 5 ) and the emitted microwave signals is detected, using the microwave signals reflected by the printing material ( 5 ) to determine the humidity of the printing material ( 5 ), and wherein the microwave signals reflected by the printing material ( 5 ) are used to determine the type of printing material ( 5 ), specifically its mass in weight per unit area (Grams per Square Meter=GSM), and adjusting the fusing device ( 100 ) based on the change of said microwave signals.