Chapter 2
2-26
2.5.2 Ink passage system
0013-8100
F-2-28
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 in a combat ion of the status of detection by the pump cam sensor and the control of purge motor rotation by the pump
encoder sensor.
F-2-29
Pump encoder
The photointerrupter-based sensor reads slits in the encoder film of the purge motor and controls the amount of its rotation accordingly.
Purge unit
Pump encoder
Pump cam sensor
Valve open/closed detection sensor
Head management sensor
- Carriage lock - Capping
- Suction
- Air passage valve open
- Idle suction
- Printing
- Suction during printing
- Wiping - Carriage lock
- Air passage
- Carriage move - Idle ejection
- Idle suction
Rotary flag
Sensor