Other Control; Cassette Pickup Mechanism - Canon Color imageCLASS MF9170c Service Manual

Chapter 8

8.2 Other Control

8.2.1 Cassette Pickup Mechanism

imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
The cassette pickup is a mechanism to pick up and feed the paper loaded in the cassette into the machine one by one.
The pickup condition is detected by the following sensors or switch.
- Cassette detection switch (SW2): Detects the presence/absence of the cassette.
- Cassette paper sensor (SR709): Detects the presence/absence of the paper in the cassette.
- Registration sensor (SR710): Detects the lead edge of the fed paper.
- Paper displacement sensor (SR714): Detects the paper displacement.
Cassette pickup operation
1) The main controller sends a print command to the DC controller.
2) The DC controller drives the pickup motor (M4).
3) The DC controller turns ON the cassette pickup solenoid (SL5012).
When the drive is sent from the pickup motor, the cassette pickup roller rotates.
In this condition, double-fed paper is removed by using the mechanism of oblique surface separation and the separation pad, and the paper is fed one by one.
4) The paper is transported to the ETB unit after the skew is corrected by the registration roller and registration shutter.
8-4
Registration shutter
SW2
DC controller PCB
SR714
SR710
SR709
Cassette pickup roller Separation pad
F-8-4
M4
Registration
SL5012
roller
0019-5028