Patent ID: 7861628

Claim:
A method for determining a displacement distance of a web in a web cutter from a reference point to a blade for cutting the web into sheets at a desired chip-out position when the web is placed for movement on a paper plane, said method comprising: providing a sensor at the reference point in relationship to the paper plane, wherein the sensor is operable in a first state and a second state; advancing the web past the blade so as to allow the blade to cut the web for providing a web edge; moving the web edge over the sensor in order to cause the sensor to change between the first and second states; obtaining at least one position of the web edge when the sensor is caused to change the state by the web edge movement; determining the displacement distance based on said at least one position in relation to a position of the web edge where the web is cut by the blade; and wherein the reference point is located upstream from the blade, and wherein said moving comprises pulling the web backward away from the blade.