Controls; Overview; Pickup/Feed Control; Paper Presence/Absence Detection Control - Canon Paper Deck Unit-F1 Service Manual

Controls

Overview

1.Pickup/Feed System
2. Compartment system
3. Deck control system
4. Others

Pickup/Feed Control

The paper deposited in the compartment is lifted by the lifter and stops at a specific level. When the start key on the host machine
is pressed, the drive of the deck pickup motor (M1) starts to rotate the pickup roller to pick up paper. At this time, the deck feed
roller and the deck separation roller operate to feed a single sheet of paper. When the deck pull-out sensor (PS2) detects the
deck pickup release solenoid (SL1) turns ON and the deck pickup roller away from the paper. The deck pull-out roller starts to
rotate when the deck pull-out motor (M2) is turned ON. The picked up paper is fed to the host machine.

Paper Presence/Absence Detection Control

The presence/absence of paper in the compartment is detected by the deck paper sensor (PS11) in the pickup assembly. When
the paper is absence and the paper detecting lever of the pickup assembly is passed through the deck paper sensor (PS11), the
host machine indicates the absence of paper on the control panel.
Item
Pickup/feed control
Paper presence/absence detec-
tion control
Paper surface detection control
Lifter control
Remaining paper level detection
control
Switching the paper size
Compartment open/close con-
trol
Power supply
Jam detection
M2
Deck pull-out roller
PS2
Deck separation roller
Paper presence
Paper detecting lever
Lifter
"Pickup/Feed Control" on page 16
"Paper Presence/Absence Detection Control" on page 16
"Paper Surface Detection Control" on page 17
"Lifter Control" on page 17
"Paper Level Detection Control" on page 18
"Switching the Paper Size" on page 20
"Compartment Open/Close Control" on page 20
"Power Supply" on page 21
"Jam Detection" on page 21
M1
Deck pickup roller
Deck feed roller
Paper absence
Deck paper
sensor(PS11)
Paper
16
2. Technology
Reference
SL1
Lifter