Media Take-Up Unit; Others - Canon imagePROGRAF iPF815 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 detection sensor
The temperature/humidity detection sensor detects the temperature and relative humidity around the printer to implement head height adjustment, mainte-
nance jet control, waste ink evaporation calculation and suction fan control on the basis of the temperature and relative humidity thus measured.
Media take-up on/off sensor
Media take-up
paper detection sensor
F-2-42
F-2-43
Temperature/humidity
detection sensor
0013-8115
0020-5569