A stretchable warp knitted fabric comprising warp knitting yarns, first weft in-laid yarns and second weft in-laid yarns, and stretchable warp in-laid yarns. A quantity of the marking substance is contained within the chamber of the marker delivery device. The apparatus further includes a subtracter which subtracts the subtraction amount from the first correction value to calculate a second correction value, and a controller which controls drive of the shake correcting part based on the second correction value.