Canon iPF5000 series Service Manual page 147

Chapter 2
Top cover sensor
Ink tank cover switch
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Top cover sensor
The photo-interrupter-type top cover sensors detect opening and closing of the top cover.
When the top cover is closed, the sensor light is shielded by the sensor arm, thus notifying the sensor of closing the cover.
Ink tank cover switch
The micro-switch-type ink tank cover switch detects opening and closing of the ink tank cover.
When the ink tank cover is closed, the protrusion on the ink tank cover presses the switch, thus detecting closing of the ink tank cover.
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