SHARP MX-LCX2 Service Manual
SERVICE MANUAL
CODE: 00ZMXLCX2/S1E
DIGITAL FULL COLOR
MULTIFUNCTIONAL SYSTEM OPTION
LARGE CAPACITY TRAY
MODEL
CONTENTS
[1] PRODUCT OUTLINE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] UNPACKING AND INSTALLATION
* For unpacking and installation, refer to the installation manual( [2] ).
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . . . . . . 4-1
[5] OPERATIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
[6] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[7] MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[8] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
MX-LCX2
[9] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] SELF DIAG MESSAGE AND TROUBLE CODE . . . . . . . . . . . . . . . . . 10-1
[11] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
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.
This document has been published to be used
SHARP CORPORATION
for after sales service only.
The contents are subject to change without notice.
CONTENTS
[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] UNPACKING AND INSTALLATION
* For unpacking and installation, refer to the installation
manual( [2] ).
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES
1. Motor, clutch, solenoid . . . . . . . . . . . . . . . . . . . . 4-1
2. PWB, sensor, switch, heater . . . . . . . . . . . . . . . . 4-2
[5] OPERATIONAL DESCRIPTION
1. Lift operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
2. Paper feed operation. . . . . . . . . . . . . . . . . . . . . . 5-1
3. Paper empty detection . . . . . . . . . . . . . . . . . . . . 5-2
[6] DISASSEMBLY AND ASSEMBLY
1.
Maintenance parts replacement procedures
2. Each unit removal . . . . . . . . . . . . . . . . . . . . . . . . 6-1
3. Major parts removal . . . . . . . . . . . . . . . . . . . . . . 6-2
. . . . . 6-1
[7] MAINTENANCE
1. Maintenance system table . . . . . . . . . . . . . . . . . 7-1
[8] ADJUSTMENTS
1. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
2. Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] SIMULATION
1. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
2. Details of trouble code . . . . . . . . . . . . . . . . . . . . 9-1
[10] SELF DIAG MESSAGE AND TROUBLE CODE
1. Self diag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
2. Trouble code list . . . . . . . . . . . . . . . . . . . . . . . . 10-2
3. Trouble code details . . . . . . . . . . . . . . . . . . . . . 10-2
[11] ELECTRICAL SECTION
1.
Electronic/mechanical parts relationship diagram
2. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
3. Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
. . . . 11-1
MX-LCX2
[1] PRODUCT OUTLINE
This model is a large capacity paper feed tray installed to the main unit.
It stores 3,500 sheets, eliminating troublesome paper supply.
Service Manual
MX-LCX2
MX-LCX2 PRODUCT OUTLINE 1 – 1
MX-LCX2
[2] SPECIFICATIONS
Service Manual
Model Large capacity tray
Transport reference Center reference
Heat reserving heater
Paper capacity
Domestic
Overseas
Normal paper
2
(64g/m
,17 lbs bond)
Normal paper
2
,21 lbs bond)
(80g/m
Domestic: Heater kit support
Overseas: Service parts support
4000 sheets
3500 sheets
Paper size/type/weight Refer to Table 1
Paper size detection Not provided (Manually setting from the control panel of the main unit)
Paper type setting Refer to Table 2
Changeover by user No
Paper size change system
Changeover by service man
(Adjustment of guide and entry of size)
Yes
Domestic A4
Factory setting of paper size
Overseas, Inch series 8.5x11
Overseas, AB series A4
Remaining paper detection
Tray lift time
Up max. 15 sec.
Down max. 5sec.
Paper empty and 6 steps
(100% ,83.3% ,66.7% ,50% ,33.3% ,16.7% ,Paper empty)
Troubleshooting of paper jam Can be corrected without separating the unit.
Reliability
MCBJ:Conforms to the main unit
MCBF:Conforms to the main unit
Life Conforms to the main unit
Power source Supplied from the main unit
Power consumption
Dimensions(WxDxH)
Occupying area(WxD)
Normal operation: 26.4W
Lift up:40.8W
370 x 550 x 525mm
14 9/16x21 41/64x20 21/32 inch
370x550mm
14 9/16x21 21/32 inch
Weight Approx. 28kg, 61.7lbs
Installation/Maintenance Implemented by service man
Maintenance parts Paper feed roller
Optional detection Automatic detection
Bundled item Parts for installation
Table 1 : Paper size, type, weight
A3W No
A3 No
B4 No
A4 Yes
A4R No
B5 Yes*1
B5R No
A5R No
12 No
11×17 No
Paper size
8.5×14 No
8.5×13 No
8.5×11 Yes
8.5×11R No
7.25×10.5R No
5.5×8.5R No
8K No
16K No
16KR No
Postcard No
Envelope No
Special No
2
55-59g/m
15-16- lbs bond
60-105g/m
16-28 lbs bond
106-209g/m
28+-56- lbs bond
210-256g/m
56-68 lbs bond
75-90g/m
2
2
2
2
20-24 lbs bond
No
Yes
Yes
No
No
Kind/weight of
applicable
paper
Thin paper
Normal paper
Cardboard 1
(including gloss paper)
Cardboard 2
Envelope
OHP paper No
Label paper No
Tab paper No
*1)Setting of paper in B5 size is enabled in only Japan and overseas AB
series size paper is available.
Table2 : Paper type setting
Normal paper Yes
Printed paper Yes
Recycled paper Yes
Letter head Yes
Perforated paper Yes
Color paper Yes
Paper type
Cardboard 1 Yes
Cardboard 2 No
Thin paper No
Label paper No
OHP No
Tab paper No
Envelope No
Use type 1 to 7 Yes
MX-LCX2 SPECIFICATIONS 2 – 1
MX-LCX2
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES
Service Manual
1. Motor, clutch, solenoid
3
5
4
1
2
No.
Code Signal name Name Type Function/Operation Active condition
1 LPFM LPFM Transport motor Brushless motor
2 LLM LLM Lift motor Brush motor Lifts the paper feed table.
3 LTRC LTRC Transport clutch
4 LPFC LPFC Paper feed clutch
5LPFS LPFS
Paper feed
solenoid
Parts
Drives the paper feed, and the
paper transport section.
Controls ON/OFF of the
transport roller.
Controls ON/OFF of the paper
feed roller.
Presses the paper pickup
roller onto paper.
When paper feed is started,
"H" level.
When the lower limit sensor is
ON, "H" level. When the upper
limit sensor is ON, "L" level.
When paper feed is started,
"H" level. After starring
transport (pickup OFF), it is
turned OFF by the timer.
Turned OFF after starting
transport. Turned ON by the
timer.
* Lift-up - When paper empty
detection is made: ON
MODEL NOTE
MX-LCX2 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 1
2. PWB, sensor, switch, heater
17
14
13
12
16
11
15
7
9
10
8
No.
Code Signal name Name Type Function/Operation Active condition
7 MAIN PWB -
8LDD LDD
9LRE LRE
10 LCSW LCSW
11 LTO D LT OD
12 LPFD LPFD
13 LUD LUD
14 LPED LPED
15 LLSW LLSW
16 LDSW LDSW
17 DH DH
LCC main
PWB
Lower limit
sensor
Lift motor
encoder
Cassette
detection
The main unit
connection
sensor
Transport
sensor
Upper limit
sensor
Paper
presence/
empty sensor
Upper limit
switch
Upper open/
close switch
Thermal
heater
Parts
Controls and drives the LCC.
The lower limit of the tray is
detected.
The lift motor rotation is
detected.
The tray insertion is detected. When inserted, "H" level.
Detects connection to the main
unit.
Detects paper transport.
Detects the paper upper limit
position.
Detects paper presence/empty
on the paper tray.
Protects the paper feed unit
from breakage due to lifting the
tray too much.
Detects open/close of the upper
door.
Keeps temperature in the LCC
tray.
When the tray is at the lower
limit, "H" level.
Pulse signal
When connected, "L" level.
L level at paper remaining
detection.
When "H" level (ON), the lift-up
motor stops.
When paper is detected, "L".
* When lifting up, if "L" with
LRE 800 pulse, the paper
feed solenoid is ON.
MODEL NOTE
Japan
only
MX-LCX2 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 2
LLM
(Lift motor output)
LLD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detection)
LPFS
(Solenoid)
LRE
(Encoder signal)
Within 800 pulses
MX-LCX2
[5] OPERATIONAL DESCRIPTION
Service Manual
1. Lift operation
When the main unit is turned ON, if the tray is at the lower limit
position (lower limit sensor: LDD ON position), the lift motor is
turned ON to lift the tray.
When the paper presence/empty sensor (LPED) is turned ON
within 800 pulses of the encoder signal from start of lifting up the
tray, the lift motor is turned OFF to stop the tray, and the paper feed
solenoid is turned ON to move down the pickup roller. After that,
the lift motor is turned ON to lift the tray. The tray is stopped when
the upper limit sensor (LUD) is turned ON.
Lifting up operation (When LPED is turned ON within 800 pulses of encoder.) Lifting up operation (When LPED is not turned ON within 800 pulses of encoder.)
If the paper presence/empty sensor (LPED) is not turned on within
800 pulses, the paper feed solenoid is turned ON with the lift motor
ON to move down the pickup roller. The lift motor is stopped at the
upper limit sensor (LUD) ON position, and the paper feed solenoid
is turned OFF.
When the machine power is turned on, if the tray is on the paper
feed position, lifting is not performed.
When the tray is pulled out, it moves down by its own weight.
(Lift motor output)
(Lower limit sensor)
(Upper limit sensor)
(Paper empty detection)
(Encoder signal)
LLM
LLD
LUD
LPED
LPFS
(Solenoid)
LRE
Within 800 pulses
200 msec
2. Paper feed operation
When the tray is stationary at the paper feed position (upper limit
sensor: LUD ON position) and there is paper on the tray, paper
feed operation can be performed.
Paper feed operation is performed by the transport motor (LPFM),
the transport clutch (LTRC), the paper feed clutch (LPFC), and the
paper feed solenoid (LPFS) at the following timing.
LCC paper feed time chart
Paper feed start
Clearance-betweenpapers control timer
Resist stop
Clearance-betweenpapers control timer
When the transport clutch (LTRC) is turned ON with the transport
motor (LRFM) ON (rotating), the transport roller rotates. When the
paper feed clutch (LPFC) is turned on under this state, the paper
feed roller and the take-up roller rotate. When the paper feed solenoid (LPFS) is turned ON, the take-up roller is pushed down to
press paper.
Resist stop
Clearance-between-
papers control timer
Resist stop Resist stop
Clearance-betweenpapers control timer
(Transport motor)
(Transport sensor)
(Paper feed solenoid)
(Paper feed clutch)
(Transport clutch)
synchronous signal)
LPFM
LPFD
LPFS
LPFC
LTRC
TRC
(Main unit
paper feed start
Preliminary
First sheet
Preliminary paper
feed complete
Paper feed start
PIC drop timer PIC drop timer PIC drop timer PIC drop timer
Paper feed clutch
OFF timer
Preliminary
paper feed start
Second sheet
Paper feed clutch
Preliminary paper
feed complete
Paper feed start
OFF timer
Preliminary
paper feed start
Third sheet
Preliminary paper
feed complete
Paper feed start
Paper feed clutch
OFF timer
paper feed start
Preliminary
Fourth sheet
Preliminary paper
feed complete
Paper feed clutch
OFF timer
MX-LCX2 OPERATIONAL DESCRIPTION 5 – 1
Preliminary
paper feed start
Fifth sheet
Preliminary paper
feed complete
Paper feed clutch
OFF timer
3
1 Paper feed roller clutch
2 Take-up roller
3 Paper feed roller
4 Paper feed solenoid
5 Transport clutch
6 Transport motor
7 Lift-up motor
5
4
1
6
7
2
3. Paper empty detection
When the tray lifts and stops at the paper feed position and during
paper feed operation, paper presence/empty is detected by the
paper presence/empty sensor (LPED).
When paper empty is detected in the tray during paper feeding,
paper feeding is stopped.
MX-LCX2 OPERATIONAL DESCRIPTION 5 – 2
MX-LCX2
[6] DISASSEMBLY AND
ASSEMBLY
1. Maintenance parts replacement procedures
A. Paper feed roller
1) Pull the lever, and open the upper cover.
2) Remove the screw, and remove the sheet.
3) Remove the pawl, and remove the take-up roller and the paper
feed roller.
2. Each unit removal
Service Manual
A. Paper feed unit
1) Pull out the tray.
2) Open the upper cover, and remove three screws.
3) Remove the upper cabinet.
4) Remove the screw, and remove the paper guide block.
5) Remove the pawl, and remove the reverse roller.
4) Disconnect the connectors (2 positions).
5) Remove the screw, and remove the paper feed unit.
MX-LCX2 DISASSEMBLY AND ASSEMBLY 6 – 1
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