Abstract: An apparatus for retracting and engaging the cleaning blade from the imaging surface and preventing copy reprint. At least one of two momentary switches are depressed by one of at least two lobes on a motorized cam. When the copying machine is in a standby condition, a computer controlled signal energizes the cam motor to advance the cam until the appropriate switch is depressed by the cam lobe.

Abstract: A sheet cutting apparatus is provided for cutting sheets from one or more media supply rolls. A rotary cutter bar cooperates with a stationary bar to sever the media as it is fed between the two bars. The rotary cutter bar is driven by a motor whose output is monitored by a speed control circuit. During a cut cycle, the motor speed may decrease with an increasing load caused, for example, by a thicker weight media being cut. Uncorrected, the motor speed would decrease, causing a deviation in the straightness of the cut. The speed control circuit senses the changes from the normal speed of the motor during the cutting cycle and generates a feedback signal to the motor to raise the speed to the operation level.