Read Sharp AR-LC5 (serv.man3) Service Manual online
AR-LC5 OPERATIONAL DESCRIPTIONS 5 - 1
[5] OPERATIONAL DESCRIPTIONS
1. Lift-up operation
When the machine power is turned on, if the tray is on the open/close
allow position (the lower limit sensor: LDD ON position), the lift motor is
turned on to lift the tray and stop it at the paper feed position (upper
limit sensor: LUD ON position).
allow position (the lower limit sensor: LDD ON position), the lift motor is
turned on to lift the tray and stop it at the paper feed position (upper
limit sensor: LUD ON position).
When the machine power is turned on, if the tray is on the paper feed
position, lifting is not performed.
position, lifting is not performed.
Lifting from open/close allow position
2. Lift-down operation
When the tray is stationary at the paper feed position, if the tray lift-
down SW is pressed, the tray moves down.
down SW is pressed, the tray moves down.
When the tray stops at the open/close allow position, the tray can be
opened/closed.
opened/closed.
When the tray is stationary at the paper feed position, the LED lights
up. When the tray is lifting up or down, the LED flashes. When the tray
is stationary at the lower limit position (where the tray can be opened/
closed), the LED turns off.
up. When the tray is lifting up or down, the LED flashes. When the tray
is stationary at the lower limit position (where the tray can be opened/
closed), the LED turns off.
Lift-down operation from the paper feed position
4
5
1
2
6
11
3
7
9
+5V
11
13
LUD
GND
10
12
+5V
LPED
14
GND
1
+24V
2
5
+24V
+24V
6
7
LPFC/
+24V
15
+5V
17
19
LPFD
GND
8
LPFS/
1
TXD-LCC
2
3
RXD-LCC
DTR-LCC
4
5
DSR-LCC
RES-LCC
6
GND2
7
+5V
8
9
GND2
+24V
10 GND1
CN-A (30pin)
1
+5V
2
3
RE/
HU
4
5
HV
HW
6
GND2
7
U
8
9
V
W
CN-C (9pin)
3
LLM+
4
22
LLM-
+5V
24
26
LRE/
GND
21
+5V
23
LDD
25
GND
CN-A (30pin)
CN-D (2pin)
CN-B (10pin)
LCC control PWB
Desk
control
PWB
(12pin)
(9pin)
LLM
LUD
LLSW
LPED
LPFS
LPFC
1
2
5
3
4
+5V
LUD
LPED
GND
+5V
6
7
8
GND
+24V
+24V
9
10
11
+24V
LPFC/
+24V
12
LPFS/
1
2
3
+5V
GND
LRE/
1
2
+24V
LTRC/
2
1
+24V
LPFS/
2
1
+24V
3
+24V
2
1
LUD
3
+5V
GND
2
1
LPED
3
+5V
GND
2
1
+24V
LPFC/
1
2
3
+5V
GND
LDD
1
2
3
+5V
LPFD
GND
1
2
3
LLM+
GND
LLM-
LRES
LCCM LPFD
LTRC
LDD
Reverse rotation brake output start
Lifting start
LLMD
(Lift motor output)
LLMU
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
About 100msec
30msec
5msec
Lifting-down start
LLMD
LLMU
LDD
LUD
(Lift motor output)
(Lift motor output)
(Lower limit sensor)
(Upper limit sensor)
100msec
30msec
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