DocuCutter 545
Cutting Drive
Energy is supplied to the Cutter Unit by a high torque
drive configuration. The Motor, via a self-contained gear
drive to the Cutter Drive Cam, supplies rotational energy.
The Cam causes the Upper Blade to move towards the
bottom surface, cutting the paper, and then returns the
blade to the home position.
Operational Status
The Cam activates a Micro switch. The Micro switch
signals the Microprocessor that the Cutter Unit has
reached the home position. The Cutter Unit is cycled each
time the DocuCutter DC-545 is powered on. If the
Microprocessor fails to receive the home position signal, a
jam is declared and the LCD indicates CUTTER LOCK.
Cutting Position Detection
The preset job data indicates where the paper requires
cutting. When the lead edge of the paper triggers Paper
Path Sensor #3 (PPS3), the Microprocessor calculates the
distance the paper travels via the Stepper Motor Control
pulses. When the desired distance is reached, the Cutter
Drive Motor is activated and the paper is cut.
28 DocuCutter 545 Training Guide © 2002, Duplo USA Corporation
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