Patent ID: 7844207
Filing Date: 2010-11-30
Classification: G03G

Abstract:
1. A belt traveling unit, comprising: an endless belt in contact with and spanned between a plurality of rollers, the plurality of rollers including: a driving unit that rotates the drive roller to drive the belt; a correction unit that adjusts a tilt angle of the correction roller to correct drifting of the belt in a width direction of the belt; a contact member that rotates in conjunction with traveling of the belt in the width direction; a position detector that detects a position of the contact member to detect a position of the belt in the width direction; and a regulating member located at a position where the position detector does not misdetect the position of the belt when the contact member rotates, wherein the regulating member is an upwards projection out of a plane defined by the contact member and having a fixed height.