Cassette Pick-Up Unit; Lifter Operation (Cassette 3/4); Detecting The Presence/Absence Of Paper - Canon imageRUNNER 5065 series Service Manual

Chapter 8

8.4 Cassette Pick-Up Unit

8.4.1 Lifter Operation (cassette 3/4)

iR5065 / iR 5055 / iR5075 / / /
When the cassette is pushed into the machine, the cassette open/closed sensor goes on and, at the same time, the pickup roller starts to move down. At this time, the
light-blocking plate leaves the lifter sensor, causing the cassette lifter motor to go on and the lifter to move up. When the lifter moves up and the lifter sensor detects
the surface of paper, its ascent stops.
When the open button of the cassette is pressed, the drive gear of the lifter becomes disengaged, letting the lifter to move down under its own weight.
Cassette opening/closing
Detection
Lifter position detection
Paper detection
Paper level detection
Lifter ascent limiter
drive motor
The following diagram shows the components of the cassette pickup unit:

8.4.2 Detecting the Presence/Absence of Paper

iR5065 / iR 5055 / iR5075 / / /
The presence/absence of paper inside the deck or the cassette is checked by the cassette paper sensor.
- Paper Present
- Paper Absent
8-10
reversal sensor 1 (PS37)
reversal sensor 2 (PS38)
duplexing paper sensor (PS34)
duplexing pre-registration sensor (PS30)
delivery assembly jam sensor (PS46)
Cassette 3
cassette 3 opening/closing
sensor (PS15)
cassette 3 lifter sensor (PS17)
cassette 3 paper sensor (PS13)
cassette 3 paper level detection PCB
(variable resistor)
---
cassette 3 lifter motor (M20)
Pickup roller
Paper
Lifter sensor
Paper sensor
Cassette open/closed
sensor
Paper sensor
Paper
Lifter
Sensor
T-8-10
Cassette 4
cassette 4 opening/closing
sensor (PS16)
cassette 4 lifter sensor (PS18)
cassette 4 paper sensor(PS14)
cassette 4 paper level detection PCB
(variable resistor)
---
cassette 4 lifter motor(M21)
Retry sensor
Feed roller
Separation roller
Pickup roller
Lifter
F-8-13
Paper detecting lever
F-8-14
0015-4539
0015-4544