Canon W6200 Service Manual page 164

W6200
Part 4: Technical Reference
Valve cam sensor
The photo inerrupter-based valve cam sensor detects the status of the valve cam on
the ink tank unit.
The sensor determines that the ink supplyer valve is opened when the rotary flag,
which operates in conjunction with the valve cam, cuts off the sensor light.
• Close • Open • Close
Sensor
Rotary flag
Figure 4-37 Valve Cam Sensor
4-55