To provide a reversing device which can be easily moved and does not influence accurate positioning of a second printer to a delivery entrance of strip of base material and a printing device provided with the reversing device.

An arrangement position of a strip of base material reversing part which is placed between first and a second printing parts that print a strip of base material is changed corresponding to action of the first and second printing parts. In addition, the strip of base material reversing part has an arrangement position determination means for performing arrangement for conveying a strip of base material. Thereby, the strip of base material reversing part can be easily moved, and dose not influence positioning accuracy to a delivery entrance of a strip of base material of the second printer.