PURPOSE: To cut continuous paper well at all times, by making the feeding quantity corrected with the use of the cutting drift quantity of a standard feeding quantity, of the feeding quantity after the separation line of following continuous paper passing through a feeding origin, and making the interposing motion start timing in both rollers couple for the following continuous paper of this achieving timing of the feeding quantity.

CONSTITUTION: With respect to continuous paper 1 as for a preceding cutting object, the interposing timing by both rollers couple of the following cutting time is automatically corrected, based on preceding cutting data, for example, and the timing that the separation line 1A of the continuous paper 1 reached an optimum cutting position by a cutting auxiliary member 3 is taken as the interposing timing by the both rollers couple. Consequently, even in the case of the continuous paper 1 being changed at its thickness, the separation line 1a of the continuous paper 1 is set at the cutting position B optimum for the cutting auxiliary member 3, and the continuous paper 1 can be cut well at all times.