Patent ID: 6901820
Filing Date: 2005-06-07
Classification: B65H

Abstract:
1. A width detecting device for detecting a width of a sheet-like medium, comprising: a placing base for placing a sheet-like medium having a first side and a second side perpendicular to a width direction of the sheet-like medium; a first limiting member situated on the first side and a second limiting member situated on the second side of the sheet-like medium; an interlocking unit that moves the first limiting member and the second limiting member along the width direction; a rotation angle detection sensor that detects an angle based on positions of the first limiting member and the second limiting member and outputs an angle signal based on the angle; an auxiliary sensor that judges any one of presence and absence of the first limiting member and the second limiting member in a moving range of the first limiting member and the second limiting member and outputs a presence and/or absence signal based on the judgment; and a width detection sensor that detects the width of the sheet-like medium based on the angle signal and the presence and/or absence signal.