A waste removing method capable of easily carrying out a waste removing operation to peel a label sheet waste off a base sheet. A label sheet 4b of label paper 4 being conveyed along a path of label paper conveyance 1 is formed with a cut line 4h for peeling-off; an upstream side portion 4i of label sheet bordered and starting with the cut line 4h is peeled off a base sheet 4a, and the portion of label sheet 4b peeled off is carried to and wound onto a waste take-up member 20 whereby winding the peeled-off portion of label sheet 4b onto the waste take-up member 20 causes a label sheet waste 4g of succeeding label paper 4 to be peeled off the base sheet 4a and taken up onto the waste take-up member. The waste removing operation can be carried out automatically.