Patent ID: 9365374
Filing Date: 2016-06-14
CPC Classification: B65H

Claim Text:
1. A sheet transport device comprising: a first rotating member configured to transport a sheet at a first transport speed; a second rotating member that is provided upstream of the first rotating member in a sheet transport direction and that is configured to transport the sheet at a second transport speed, which is lower than the first transport speed; a third rotating member that is provided upstream of the second rotating member in the sheet transport direction, wherein the third rotating member is configured to, in a stopped state, receive the transported sheet and subsequently transport the sheet so as to perform positional correction on the sheet; first and second sheet position detectors that are configured to detect positions of a leading edge of the transported sheet; and a controller configured to control such that, if a preset time elapses after the first sheet position detector detects that the leading edge of the sheet has reached the third rotating member, then the third rotating member is caused to transport the sheet at the second transport speed, and if the second sheet position detector detects that the leading edge of the sheet has passed the second rotating member, then the third rotating member is increased in transport speed from the second transport speed to the first transport speed.