Apparatus for controlling the lateral alignment of a belt and electrostatographic printing machines and document handlers incorporating same.

摘要

An apparatus which controls the lateral alignment of a belt (10) arranged to move in a predetermined path end electrostatographic printing machines and document handlers incorporating such apparatus. A pivotably mounted belt support roller (20) is frictionally driven to move in unison with the belt. Lateral movement of the belt (10) applies a frictional force on the belt support. The frictional force tilts the belt support roller (20) in a direction so as to restore the belt (10) to the predetermined path of movement. The roller (20) is pivotably held by a member (70) suitably comprising a pair of leaf springs (71, 72).