Canon imagePROGRAF iPF8400 - Ink Passage System

Chapter 2
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2.5.2 Ink passage system
0024-9591
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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.
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Pump encoder
Pump cam sensor
Head management sensor
Valve open/closed
detection sensor
Agitation cam sensor
- Carriage lock - Capping
- Suction
- Air passage valve open
- Idle suction
- Printing
- Suction during printing
- Wiping - Carriage lock
- Air passage
- Carriage move - Maintenance jet
- Idle suction
Rotary flag
Sensor