Ink Passage System - Canon imagePROGRAF iPF825 Service Manual

Chapter 2

2.5.2 Ink passage system

Pump cam sensor
As the cam rotates, it shields the sensor light of the photointerrupter-based pump cam sensor or allows it to be transmitted. The status of the purge unit, such as
capped, suction and wiping, is detected by the combination of the pump cam sensor detection and the control of pump motor rotation by the pump encoder sensor.
Rotary flag
- Carriage lock
- Wiping
2-44
Agitation cam sensor
Sensor
- Capping
- Suction
- Carriage lock
- Air passage
Pump encoder sensor
Head management sensor
F-2-34
- Air passage valve open
- Idle suction
- Carriage move
F-2-35
Valve open/closed detection sensor
Pump cam sensor
HP maintenance jet
pump encoder sensor
- Printing
- Suction during printing
- Maintenance jet
- Idle suction
0020-5560