TEC SX4T - B B/W Direct Thermal User Manual page 131

1. OUTLINE
(5) Slit sensor (Transmissive sensor)
This sensor detects the rotation count of the ribbon shaft and the ribbon motors. The ribbon
motors torque works to take up slack in the ribbon and is dependent on the detected count.
The slit sensor is a photo coupler combining an LED and a transistor.
Rewind Slit Gear
Slit Sensor (Rewind)
(6) Strip sensor (Transmissive sensor)
This sensor detects whether or not the label has been taken away from the media outlet and
controls the label feed. It is positioned 17.8 mm from the platen.
Slit
Strip Sensor (Tr)
Strip Sensor (LED)
Slit
Slit Sensor (Feed)
Print Head
17.8 mm
Platen
Strip Shaft
Backing Paper
1-13
EO10-33013A
1.5 ELECTRONICS SPECIFICATIONS
Feed Slit Gear