Media Take-Up Unit; Others - Canon iPF8000 series Service Manual

Chapter 2

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

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.
2-38
Media take-up on/off sensor
Media take-up
paper detection sensor
F-2-39
Humidity sensor
F-2-40
0013-8115
0013-8116