Patent ID: 8783181
Filing Date: 2014-07-22
Classification: B41C,G03F

Abstract:
1. A mandrel position analyzer in an imaging device comprising: a head stock for a first side of the mandrel; a tail stock for a second side of the mandrel; a first encoder attached to the head stock adapted to measure first signals wherein the first signals are generated by movement of the mandrel to form a first set of results, wherein the first set of results represents a rotational speed of the mandrel; a second encoder attached to the tail stock adapted to measure second signals wherein the second signals are generated by movement of the mandrel to form a second set of results, wherein the second set of results represents the rotational speed of the mandrel; an analyzer which compares the first set of results to the second set of results; and an alarm; wherein if the first set of results is different from the second set of results, the alarm alerts an operator.