According to one embodiment, a printing device includes a conveyance mechanism configured to convey a printing medium along a conveying path, and a detection device provided on the conveying path and configured to detect a position of the printing medium therealong. The printing device further includes a control device configured to select one of first and second conveyance modes in response to a predetermined condition, the control device being further configured to control the conveyance mechanism so as to convey the printing medium along the conveying path based on the selected conveyance mode. In the second conveyance mode, the printing medium is conveyed along the conveying path while being detected by the detection device, at a conveyance speed slower than that of the first conveyance mode.