Media Take-Up Unit; Others - Canon imagePROGRAF IPF8400 Service Manual

2.5.5 Media take-up Unit

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.

2.5.6 Others

Temperature/humidity sensor
This sensor detects the temperature and humidity around the printer so that the measured values are used for head height adjustment, idle discharge control, waste
ink evaporation amount calculation, and suction fan control.
Media take-up on/off sensor
Media take-up
paper detection sensor
F-2-40
Temperature/humidity sensor
F-2-41
Chapter 2
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0013-8116
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