Maintenance Manual SP 40
Rev. 005
125
Chapter 7
Electromechanical Devices
7.5 SENSORS
Home Sensor - To detect home position for the carriage assy. It is an optointerrupter installed on the left side
of the vertical frame.
Fig. 7.8 - Home Position Sensor
Edge Sensor - To detect the paper edge. It is an optical reflection sensor installed on the carriage assy
together with the print head.
Fig. 7.9 - Edge Sensor
Ribbon Sensor - To detect presence and movement of the ribbon. It is a unipolar Hall switch magnetic sensor
installed on the upper part of the right frame.
Fig. 7.10 - Ribbon Sensor
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