Chapter 2
2-25
Humidity sensor
The humidity sensor detects the temperature and relative humidity around the printer to implement head height adjustment, maintenance jet control, waste ink evap-
oration calculation and suction fan control on the basis of the temperature and relative humidity thus measured.
2.5.6 Media take-up Unit
0013-8115
F-2-34
Media take-up on/off sensor
The photointerrupter-based media take-up on/off sensor detects the switch status of the media take-up unit.
When the media take-up switch is set to ON, the sensor arm transmits the sensor light, power-on the media take-up unit.
When the media take-up switch is set to OFF, the sensor arm shields the sensor light, shutting down the media take-up unit.
Media take-up paper detection sensor
When the sensor light is shielded by a loop of printed paper, the media take-up motor rotates to take up the paper.
ON
OFF
Media take-up on/off sensor
Media take-up
paper detection sensor
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