Patent ID: 8366105
Filing Date: 2013-02-05
Classification: B41J,B65H

Abstract:
1. A media transport apparatus comprising: a first media transport having a first transport surface and a first drive unit, the first media transport configured and operative to convey a substrate media; a second media transport having a second transport surface and a second drive unit, the second media transport configured and operative to receive the substrate media from the first media transport and to convey the substrate media; a third media transport having a third transport surface, the third media transport configured and operative to receive the substrate media from the second media transport, and to convey the substrate media; a first force transducer operative to measure a first relative force between the first and second media transports, and to output a first force signal associated with the first relative force; a sensor operative to detect the presence of substrate media passing between the second media transport and third media transport, and to output a second detection signal associated with the detection; and a control unit configured and operative to receive the first relative force signal and the second detection signal, and to output a first control signal to at least one of the first and second drive units that is dependent upon a comparison of the first relative force signal with a predetermined value, the first control signal commanding the respective first or second drive unit to drive the motion of the respective first or second media transport to maintain the force signal at or about no greater than the predetermined value, the control unit further configured and operative, responsive to the second detection signal, to output a second control signal to at least one of the first and second drive units in place of the first control signal, the second control signal commanding the respective first or second drive unit to drive the motion of the respective first or second media transport at a predetermined speed.