Canon imageRUNNER C1335 Series Service Manual page 125

2
Technical Explanation > Pickup / Feed System > Controls > Cassette Pickup Assembly
● Paper Level Detection Control
Paper level inside the cassette is detected by the sensors shown in the following table.
The paper level in the cassette is detected by the Cassette 1 Lifter Motor (M11), Cassette 1
Paper Sensor (PS02), Cassette 1 Paper Surface Sensor (PS18), and Cassette 1 Paper Level
Sensor (PS20).
Cassette 1 Paper Cassette 1 Paper Cassette 1 Paper
Sensor Surface Sensor Level Sensor
(PS02) (PS18) (PS20)
OFF ON OFF*
OFF ON
OFF ON
The control that switches the paper level display on the Control Panel is as follows:
• From 3 bars to 2 bars on the Control Panel:
The paper level is detected based on the time for which Cassette 1 Lifter Motor is
continuously turned ON. Or, it is detected based on the time from when the Cassette 1
Paper Sensor (PS02) is turned ON to when the Cassette 1 Paper Surface Sensor (PS18)
is turned ON.
The paper level during paper feed is detected based on the number of times the Cassette 1
Lifter Plate is lifted up.
Related Service Mode
*: The paper level in the cassette is displayed by executing the following service mode.
You can adjust the timing of switching the scale from "3" to "2".
Lv.2) COPIER > ADJUST > CST-ADJ > CST-VLMX (Threshold adjustment for detecting
the level in the cassette X)
X indicates the cassette number (1 to 4).
• From 2 bars to 1 bar on the Control Panel:
The Control Panel switches to display 1 bar when the Cassette 1 Paper Level Sensor (PS02)
is turned ON.
2 Technical Explanation > Pickup / Feed System > Controls > Cassette Pickup Assembly
Display on
Paper level the Control
Panel
100% to 50%*
Approx. 50% to approx. 50
OFF
sheets
ON Approx. 50 sheets or less
Cassette 1 Paper
Level Sensor
(PS20)
Paper Level
Detection Lever
Cassette 1
Lifter Motor
(M11)
T-2-48
Lifter Gear
Cassette 1 Paper Lifting Plate
Surface Sensor Detection Lever
(PS18)
Cassette 1
Paper Sensor
(PS02)
Paper Detection Lever
Lifting Plate
2-94
F-2-126
2-94