Patent ID: 7789243

Claim:
A method for adjusting a bank note processing machine wherein threshold values of sensors are defined for recognizing bank notes unfit for circulation, comprising: selecting at least one bank note fit for circulation, wherein the selection of the fit bank note is based at least in part on the lack of soil, damage, or alien elements; selecting at least one bank note unfit for circulation, wherein the selection of the unfit bank note is based at least in part on the presence of soil, damage, or alien elements; processing the selected bank notes by means of the bank note processing machine, whereby data of at least one sensor are stored; and defining at least one threshold value for the at least one sensor by evaluating the stored data of the at least one sensor; wherein bank notes fit for circulation and those unfit for circulation are processed jointly and at least one of the rate of the bank notes fit for circulation or the rate of those unfit for circulation is specified.