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US 4,344,693 AGranted
Belt tracking system
AssigneeXerox Corporation
InventorRalph A. Hamaker
Life of this patent
Estimating the term…
Abstract
An apparatus which controls the lateral alignment of a belt arranged to move in a pre-determined path. A pivotably mounted belt support is frictionally driven to move in unison with the belt. Lateral movement of the belt applies a frictional force on the belt support. The frictional force tilts the belt support in a direction so as to restore the belt to the predetermined path of movement.
Claims6
An electrophotographic printing machine of the type having a photoconductive belt arranged to move in a pre-determined path through a plurality of processing stations disposed therealong, wherein the improvement includes:
- means for supporting the photoconductive belt, said supporting means being frictionally driven by the photoconductive belt to move in unison therewith in at least a direction substantially normal to the direction of movement along the pre-determined path;
- and
- means for pivotably holding said supporting means so that movement of the photoconductive belt in the direction substantially normal to the direction of movement along the pre-determined path applies a frictional force on said supporting means to pivot said supporting means in a direction such that the photoconductive belt returns to the pre-determined path of movement.
Dependencies are inferred from the claim text.