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Service Guide ML520/521
Chapter 2 Principles of Operation
2.2.02 Spacing Mechanism
The spacing mechanism consists of a carriage shaft (mounted parallel to the platen), and a carriage frame which moves along the shaft. The carriage frame is driven by a DC servo motor mounted on the carriage frame.
Items included in the spacing mechanism are listed below.
Space Motor Assembly
DC Servo Motor
Motor Gear
Sensor
Encoder Disk
Carriage Frame
Carriage Shaft
Space Rack
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