Canon W8400 Series, Руководство по обслуживанию, Страница: 86 / 224

Chapter 2
2-36
2.5 Detection Functions Based on Sensors
2.5.1 Sensors for covers
0008-3880
F-2-37
Upper cover safety switch (left)/(right)
The microswitch-based upper cover sensors detect opening and closing of the upper cover.
When the upper cover is closed, a switch is depressed to notify the sensor that the cover is closed.
To prevent the uneven fitting of the upper cover, sensors are located on both the right and left sides.
Right cover sensor
The photo interrupter-based right cover sensor detects the opening and closing of the right cover.
When the right cover is closed, the sensor light is cut off by the sensor arm, and this notifies the sensor that the right cover is closed.
Pressure release sensor
The photo interrupter-based pressure release sensor detects the opening and closing of the paper release lever.
When the paper release lever is closed, the sensor light is cut off by the sensor arm, and this notifies the sensor that the paper release lever is closed.
MEMO:
When the upper cover is closed, the +26.5 V power is supplied by the power supply to drive the carriage motor and feed motor.
Upper cover
sensor(R)
Upper cover
sensor(L)
Right cover sensor
Pressure
release sensor