Media conveyance device, printing device, and media conveyance method

A conveyance device comprising:

• an upstream roller configured to rotate forward to convey a medium of a sheet form stored in a roll in a conveyance direction to a conveyance path and to rotate in reverse to move the medium in a reverse direction;
• a downstream roller configured to rotate to convey the medium to a processing position;
• a roll rotating unit configured to rotate forward to convey the medium in the conveyance direction and to rotate in reverse to rewind the medium;
• and
• a control unit configured to control driving of the upstream roller, the downstream roller, and the roll rotating unit, such that, during an operation that reverses and rewinds the medium, the control unit (i) drives the upstream roller and the roll rotating unit, (ii) stops driving the upstream roller while continuing to drive the roll rotating unit, first slack being created as a result of (i) or (ii), (iii) causes the medium to be nipped at the downstream roller, and (iv) drives the upstream roller while the medium is nipped at the downstream roller to create second slack.