Adjusting method for printing apparatus, and printing apparatus

An adjusting method for a printing apparatus including a head configured to perform printing onto a medium, a transport part configured to transport the medium in a transport direction, a winding shaft configured to wind thereon the transported medium, a camera configured to image-capture the winding shaft, a shaft adjustment mechanism configured to adjust a position of the winding shaft, and a notification part configured to provide a notification about information,

• the method comprising:
• a printing step for printing a measurement pattern onto the medium;
• a transporting step for transporting the measurement pattern to the winding shaft;
• an image-capturing step for image-capturing the measurement pattern, which is transported to the winding shaft, at two different locations of the medium in a direction along an axis of the winding shaft;
• a notification step for providing a notification about a result based on a captured image of the measurement pattern;
• and
• an adjustment step for adjusting a position of the winding shaft in accordance with the result notified by the notification part.