Perforation device

A method of selectively perforating sheets of paper that are moving successively through a perforation device, the perforation being along a direction of the movement, the perforation device including a perforating tool having a perforating position in which a sheet of paper is perforated and a neutral position in which a sheet of paper is not perforated, the device further including a control unit to control the perforating tool, the method comprising acts of:

• successively receiving the moving sheets at the perforating device;
• for each received sheet, receiving at the control unit a first control signal corresponding to the received sheet;
• sending a second control signal from the control unit to the perforating tool to set the perforating tool into the perforating position if, based on the first control signal, a received sheet to be perforated enters the perforating device;
• and perforating the received sheet along the direction of movement in accordance with the second control signal to produce a perforated sheet.

A method of selectively perforating sheets of paper moving successively through a perforating device, the perforating device including a first perforating tool for perforating sheets of paper and a control unit for controlling the perforating tool, wherein the first perforating tool perforates the paper along a direction of the movement of the sheets, the method comprising acts of:

• successively receiving a plurality of sheets of paper as input to the perforating device;
• and
• positioning the first perforating tool in either a perforating position to perforate paper or a neutral position to allow paper to pass unperforated, including:
• for at least a first sheet, receiving at the control unit a first control signal corresponding to the first sheet;
• sending, based on the first control signal, a second control signal from the control unit to the first perforating tool to cause the first perforating tool to assume the perforating position;
• and
• in response to receiving the second control signal from the control unit, actuating the first perforating tool to assume the perforating position while the first sheet passes.

A system for selectively perforating sheets of paper moving successively through a perforating device, the perforating device including a first perforating tool for perforating paper and a control unit for controlling the perforating tool, wherein the first perforating tool perforates the paper along a direction of the movement of the sheets, the system comprising:

• means for successively receiving a plurality of sheets of paper as input to the perforating device;
• and
• means for positioning the first perforating tool in either a perforating position to perforate paper or a neutral position to allow paper to pass unperforated, including:
• means for receiving at the control unit, for at least a first sheet, a first control signal corresponding to the first sheet;
• means for sending, based on the first control signal, a second control signal from the control unit to the first perforating tool, to cause the first perforating tool to assume the perforating position;
• and
• means for actuating, in response to receiving the control signal from the control unit, the first perforating tool to assume the perforating position while the first sheet passes.