Electrical Component Descriptions - Ricoh A229 Service Manual

ELECTRICAL COMPONENT DESCRIPTIONS

1.4 ELECTRICAL COMPONENT DESCRIPTIONS
Symbol
Motors
M1
M2
Sensors
S1
S2
S3
S4
S5
S6
S7
S8
S9
Switches
SW1
SW2
SW3
SW4
SW5
SW6
Solenoids
SOL1
Magnetic Clutches
MC1
MC2
PCBs
PCB1
A229
Name
LCT Drives all rollers.
Lift Drives the paper tray up or down.
Paper End Informs the copier when the paper has
run out.
Paper Feed Detects the copy paper coming to the
relay roller and checks for misfeeds.
Detects when the paper is at the correct
Lift
paper feed height.
Down Detects when the tray is completely
lowered, to stop the LCT motor.
Paper Height 1 Detects the paper height.
Paper Height 2 Detects the paper height.
Paper Height 3 Detects the paper height.
Near End Detects the paper height.
Paper Position Detects when the top of the paper stack
is at the correct position for paper feed.
Detects whether the tray cover is opened
Tray Cover 1
or not.
Tray Cover 2 Ensures that +24V can be passed to the
lift motor whether the cover is open or
Tray Cover 3
closed.
Feed Unit Detects whether the feed unit cover is
Cover 1 opened or not.
Feed Unit Ensures that +24V can be passed to the
Cover 2 lift motor whether the cover is open or
closed.
Down Lowers the LCT bottom plate if pressed.
Pick-up Controls up-down movement of the pick-
up roller.
Paper Feed Drives the paper feed roller.
Relay Drives the relay roller.
Controls the LCT and communicates with
LCT Interface
the copier.
Function
8-4
Index
No.
6
14
21
1
2
15
10
11
12
9
20
16
17
18
7
8
19
3
5
4
13
SM