Patent ID: 8474815
Filing Date: 2013-07-02
Classification: B65H,G03G

Abstract:
1. A transport device, comprising: a first transport roller unit that transports a sheet-like print medium along a transport path in a transporting direction; a second transport roller unit that is disposed at one of a downstream location and an upstream location of the first transport roller unit along the transport path and transports the print medium in the transporting direction; a first roller driving unit that rotates the first transport roller unit; a second roller driving unit that rotates the second transport roller unit; a first speed control unit that controls a rotating speed of the first roller driving unit to reach a first target speed; and a second speed control unit that controls a rotating speed of the second roller driving unit to reach a second target speed, wherein the second speed control unit is arranged to perform, when the print medium is transported by both the first transport roller unit and the second transport roller unit, a follower control having a response sensibility to speed fluctuations in a predetermined frequency region of a control system, which is smaller than a response sensibility when the print medium is transported by the second transport roller unit solely.