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US 5,682,818 AGranted
Arrangement for and method of regulating a printing roller
AssigneeRuhlatec Industrieprodukte GmbH
InventorsPaul-Wilhelm Braun, Herbert Lehmann
Life of this patent
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AssigneeRuhlatec Industrieprodukte GmbH
InventorsPaul-Wilhelm Braun, Herbert Lehmann
Estimating the term…
A drive for a printer includes a printing roller which is driven by a step motor located at one axial end of the roller. A monitoring unit for the printing roller is disposed at the other axial end of the roller and comprises a belt which is mounted on two guide rollers. The rotational axes of the guide rollers are parallel to the rotational axis of the printing roller. The outer surface of the belt frictionally engages a portion of the peripheral surface of the printing roller so that the belt moves in response to rotation of the printing roller. One of the guide rollers for the belt drives a synchronizing disc having indicating elements which are sensed by a detector. The detector generates a synchronizing signal whenever an indicating element is detected, and the synchronizing signals are sent to a control unit. The control unit compares the synchronizing signals with reference signals and sends control signals to the motor when the synchronizing signals deviate from the reference signals.
A drive, comprising a rotary member;
A method of regulating a rotary member having a peripheral surface, comprising the steps of moving a monitoring member along a predetermined path;
A drive, comprising a printing roller;
A method of regulating a printing roller having a peripheral surface, comprising the steps of moving a monitoring member along a predetermined path;
Dependencies are inferred from the claim text.