Read Sharp AR-LC6 (serv.man2) Service Manual online
Parts marked with “
” are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION
SERVICE MANUAL
CONTENTS
CODE: 00ZARLC6//A2E
DIGITAL COPIER/PRINTER/
MULTIFUNCTIONAL SYSTEM OPTION
MULTIFUNCTIONAL SYSTEM OPTION
LARGE CAPACITY TRAY
MODEL
AR-LC6
[1] OUTLINE OF THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[3] INTERNAL CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
[4] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[5] DISASSEMBLY, ASSEMBLY, MAINTENANCE . . . . . . . . . . . . . . . 5-1
[6] ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[7] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[8] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
: Jan. 9 2004
1
AR-LC6 OUTLINE OF THE PRODUCT 1 - 1
[1] OUTLINE OF THE PRODUCT
This model is a large capacity paper feed tray installed to the main unit.
It stores 3,500 sheets, eliminating troublesome paper supply.
[2] SPECIFICATIONS
AR-LC6
Transport speed
Corresponds to 55 – 70 sheet/min.
Transport reference
Center reference
Paper size
AB series
A4
Inch series
8.5" x 11"
Paper size setting
Not provided.
Factory setting of
paper size
paper size
AB series
A4
Inch series
8.5" x 11"
Kind/weight of
applicable paper
applicable paper
Normal paper 60 – 105g/m
2
(16 – 28lbs)
Paper capacity
3,500 sheets (80g/m
2
)
Remaining paper
detection
detection
Enable (Paper empty and 6 steps)
Paper feed system
Front loading, paper feed from the upper
section
section
Tray lift time
Up: max. 15sec
Down: max. 5sec
Down: max. 5sec
Power consumption
Normal operation
26.4W or less
Lift up
42W or less
Power source
24V and 5V are supplied from the main unit
External dimensions
376 (W) x 545.5 (D) x 517.5 (H) mm
Occupying area
376 (W) x 545.5 (D) mm
Weight
About 35kg or less
Paper feed system
Paper pick-up by the take-up roller, Torque
limiter reverse rotation separation system
limiter reverse rotation separation system
Humidifying heater
Power supplied from the main unit, ON/OF
control by the main unit
Heater kit support
control by the main unit
Heater kit support
Factory setting
AB series
A4
Inch series
LT
1
: Jan. 9 2004
1
AR-LC6 INTERNAL CONSTRUCTION 3 - 1
[3] INTERNAL CONSTRUCTION
1. Motor, clutch, solenoid
No.
Parts
MODEL
NOTE
Code
Signal name
Name
Type
Function/Operation
Active condition
1
LTM
LTM
Transport
motor
motor
Brushless
motor
motor
Drives the paper feed, and the
paper transport section.
paper transport section.
When paper feed is started,
"H" level.
"H" level.
2
LLM
LLM
Lift motor
Brush motor
Lifts the paper feed table.
When the lower limit sensor
is ON, "H" level. When the
upper limit sensor is ON, "L"
level.
is ON, "H" level. When the
upper limit sensor is ON, "L"
level.
3
LTCL
LTCL
Transport
clutch
clutch
Controls ON/OFF of the
transport roller.
transport roller.
4
LPFCL
LPFCL
Paper feed
clutch
clutch
Controls ON/OFF of the paper
feed roller.
feed roller.
When paper feed is started,
"H" level. After starring
transport (pickup OFF), it is
turned OFF by the timer.
"H" level. After starring
transport (pickup OFF), it is
turned OFF by the timer.
5
LPSL
LPSL
Paper feed
solenoid
solenoid
Presses the paper pickup roller
onto paper.
onto paper.
Turned OFF after starting
transport. Turned ON by the
timer.
transport. Turned ON by the
timer.
∗
Lift-up – When paper
empty detection is made:
ON
empty detection is made:
ON
3
5
4
1
2
1
1
1
1
: Jan. 9 2004
1
AR-LC6 INTERNAL CONSTRUCTION 3 - 2
2. PWB, sensor, switch, heater
No.
Parts
MODEL
NOTE
Code
Signal name
Name
Type
Function/Operation
Active condition
7
MAIN PWB
–
LCC main
PWB
PWB
Controls and drives the LCC.
8
LLD
LLD
Lower limit
sensor
sensor
The lower limit of the tray is
detected.
detected.
When lifting up, "L" level.
9
LRE
LRE
Lift motor
encoder
encoder
The lift motor rotation is
detected.
detected.
Pulse signal
10
LCD
LCD
Cassette
detection
detection
The tray insertion is detected.
When inserted, "H" level.
11
LTOD
LTOD
The main unit
connection
sensor
connection
sensor
Detects connection to the main
unit.
unit.
When connected, "H" level.
12
LTD
LTD
Transport
sensor
sensor
Detects paper transport.
"L" level at paper
remaining detection.
remaining detection.
13
LUD
LUD
Upper limit
sensor
sensor
Detects the paper upper limit
position.
position.
When "H" level (ON), the
lift-up motor stops.
lift-up motor stops.
14
LPED
LPED
Paper
presence/
empty sensor
presence/
empty sensor
Detects paper presence/empty
on the paper tray.
on the paper tray.
When paper is detected,
"H."
"H."
∗
When lifting up, if "L"
with LRE 800 pulse, the
paper feed solenoid is
ON.
with LRE 800 pulse, the
paper feed solenoid is
ON.
15
LLSW
LLSW
Upper limit
switch
switch
Protects the paper feed unit
from breakage due to lifting the
tray too much.
from breakage due to lifting the
tray too much.
16
LOSW
LOSW
Upper open/
close switch
close switch
Detects open/close of the
upper door.
upper door.
17
DH
DH
Thermal
heater
heater
Keeps temperature in the LCC
tray.
tray.
Japan
only
only
1
7
8
9
10
11
14
13
15
16
17
12
1
1
1
1
