Sharp MX-LCX3N User manual

SERVICE MANUAL
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
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
CONTENTS
CODE: 00ZMXLCX3NS1E
[1] PRODUCT OUTLINE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] UNPACKING AND INSTALLATION
* For unpacking and installation, refer to the installation manual( [3] ).
[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
[9] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] SELF DIAG MESSAGE AND TROUBLE CODE . . . . . . . . . . . . . . . . . 10-1
[11] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
DIGITAL
MULTIFUNCTIONAL SYSTEM OPTION
LARGE CAPACITY TRAY
MX-LCX3N
MODEL

CONTENTS
[1] PRODUCT OUTLINE. . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] UNPACKING AND INSTALLATION
* For unpacking and installation, refer to the installation
manual( [3] ).
[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 . . . . . . . . . . . . . . . . . . . . . 5-2
3. Paper empty detection . . . . . . . . . . . . . . . . . . . . 5-3
[6] DISASSEMBLY AND ASSEMBLY
1. Maintenance parts replacement procedures. . . . 6-1
2. Each unit removal . . . . . . . . . . . . . . . . . . . . . . . . 6-1
3. Major parts removal . . . . . . . . . . . . . . . . . . . . . . 6-3
[7] MAINTENANCE
1. Maintenance system table . . . . . . . . . . . . . . . . . 7-1
[8] ADJUSTMENTS
1. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
2. Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] SIMULATION
1. List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . .11-1
2. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .11-3
3. Circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . .11-5

MX-LCX3N PRODUCT OUTLINE 1 – 1
MX-LCX3N Service Manual
[1] PRODUCT OUTLINE
This model is a large capacity paper feed tray installed to the main unit.
It stores 3,000 sheets, eliminating troublesome paper supply.
* The illustration of the main unit below is intended for the model of MX-5500N series.
MX-LCX3N
Notes
* For the installation to the model of MX-850 series, only MX-M850 is applicable.
* When this model is connected to MX-850, upgrade the firmware of MX-LCX3N.
* If this model is installed to MX-850, it is necessary to install MX-MFX1 sold separately.

MX-LCX3N SPECIFICATIONS 2 – 1
MX-LCX3N Service Manual
[2] SPECIFICATIONS
Model Large capacity tray
Transport reference Center reference
Heat reserving heater Domestic: Heater kit support
Overseas: Service parts support
Paper capacity Domestic Normal paper(64g/m2,17 lbs bond) 3500 sheets
Overseas Normal paper(80g/m2,21 lbs bond) 3000 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
Paper size change system
Changeover by user Yes (Changeover by manager is allowed)
Changeover by service man
(Adjustment of guide and entry of size) No
Factory setting of paper size
Domestic A3
Overseas, Inch series 11x17
Overseas, AB series A3
Remaining
paper detection
Paper empty and 6 steps
(100% ,83.3% ,66.7% ,50% ,33.3% ,16.7% ,Paper empty)
Tray lift time Up max. 30 sec.
Down max. 15sec.
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 Normal operation:50.4W Lift up:40.8W
Dimensions(WxDxH) 670x570x525mm, 26 3/8 x 22 7/16 x 20 21/32 inch
Occupying area(WxD) 670x570mm, 26 3/8 x 22 7/16 inch
* The rear cabin motor restrictor (10mm) is not included.
Weight Approx. 50kg, 110.1 lbs
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
AB Series Inch
Paper size
A3W Yes Yes
A3 Yes Yes
B4 Yes Yes
A4 Yes Yes
A4R Yes Yes
B5 Yes Yes
B5R No No
A5R No No
12x18 Yes Yes
11x17 Yes Yes
8.5x14 Yes Yes
8.5x13 Yes Yes
8.5x11 Yes Yes
8.5x11R Yes Yes
7.25x10.5R No No
5.5x8.5R No No
8K * No No
16K * No No
16KR No No
Postcard No No
Envelope No No
Special No No
Kind/weight
of
applicable
paper
Thin paper 55-59g/m2
15-16- lbs bond No
Normal
paper
60-105g/m2
16-28 lbs bond Yes
Cardboard
1(including
gloss paper)
106-209g/m2
28+-56- lbs bond Yes
Cardboard 2 210-256g/m2
56-68 lbs bond No
Envelope 75-90g/m2
20-24 lbs bond No
OHP paper No
Label paper No
Tab paper No
* : Available for products for China only.
Table2:Paper type setting
Paper type
Normal paper Yes
Printed paper Yes
Recycled paper Yes
Letter head Yes
Perforated paper Yes
Color paper Yes
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-LCX3N EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 1
MX-LCX3N Service Manual
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES
1. Motor, clutch, solenoid
No. Parts
Code Signal name Name Type Function/Operation Active condition
1 LPFM LPFM Transport motor Brushless motor Drives the paper feed, and the paper
transport section.
CN-G
5pin →Motor rotation clock
4pin →Sync signal: Normal HIGH
3pin →Enable signal: LOW when rotating
2 LLM LLM Lift motor Brush motor Lifts or lowers the paper feed table. CN-B
Lifting: 10pin "24V", 15pin "L"
Lowering: 10pin "L", 15pin "24V"
3 LPFS LPFS Paper feed solenoid Presses the paper pickup roller onto paper. CN-E 8pin
ON: "L"
OFF: "24V"
4 LTLS LTLS Tray lock solenoid Controls ON/OFF of the tray lock. CN-D
Lock: "L" ("24V" after 0.5sec)
Release: "L" ("24V" after 0.5sec)
5 LTRC LTRC Transport clutch Controls ON/OFF of the transport roller. CN-F 15pin
ON: "L"
OFF: "24V"
6 LPFC LPFC Paper feed clutch Controls ON/OFF of the paper feed roller. CN-F 11pin
ON: "L"
OFF: "24V"
7 LFAN LFAN Separation assist
fan
Brushless motor Assists feeding of paper. CN-D 15, 16pin
ON: "L"
OFF: "5V"







MX-LCX3N EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 2
2. PWB, sensor, switch, heater
No. Parts
Code Signal name Name Type Function/Operation Active condition
1 LPUD LPUD LCC paper front surface
sensor
Detects paper front surface position CN-C 8pin
Paper detected: "L"
Paper not detected: "H"
2 LUD LUD Upper limit sensor Detects the paper upper limit position. CN-E 5pin
Upper limit: "H"
Other than Upper limit: "L"
3 LPFD LPFD Transport sensor Detects paper transport. CN-E 11pin
Paper detected: "L"
Paper not detected: "H"
4 LTOD LTOD The main unit connection
sensor
Detects connection to the main unit. CN-F 19pin
Connected: "L"
Not connected: "H"
5 LDSW LDSW Upper open/close switch Detects open/close of the upper door. CN-F 4pin 6pin
Open: "L"
Close: "24V"
6 LLSW LLSW Upper limit switch Protects the paper feed unit from breakage
due to lifting the tray too much.
CN-F 7pin
Normal: "24V"
Detection: "L"
7 LPED LPED Paper presence/empty
sensor
Detects paper presence/empty on the paper
tray.
CN-E 2pin
Paper present: "L"
Paper empty: "H"
8 A3-LCC PWB — A3-LCC PWB unit Controls and drives the LCC.
9 LCSW LCSW Cassette detection switch The tray insertion is detected. CN-B 7pin
Cassette insertion: "24V"
Cassette puling out: "L"
10 LRE LRE Lift motor encoder The lift motor rotation is detected. CN-C 4pin
Pulse
11 LWRSW LWRSW LCC reverse-winding
detection switch
Detects lift motor reverse-winding CN-B 14pin
Normal: "24V"
Detection: "L"
12 LTLD LTLD Tray lock sensor Detects the tray lock CN-C 7pin
Lock: "H"
Release: "L"
13 LDD LDD Lower limit sensor The lower limit of the tray is detected. CN-C 3pin
Lower limit: "H"
Other than Lower limit: "L"
14 DOWN SW PWB — Lowering SW PWB unit Shifts the tray to the paper supply position.
15 LTLLED LTLLED Tray LED The tray state is displayed with LED.
1
2
3
45
67
8
9
10
11
12
13
15
14

MX-LCX3N OPERATIONAL DESCRIPTION 5 – 1
MX-LCX3N Service Manual
[5] OPERATIONAL DESCRIPTION
1. Lift operation
A. Lifting by insertion of the tray
When insertion of the tray is detected, the tray is locked by the tray
lock solenoid so that the tray cannot be pulled out.
When tray lock is settled by turning ON the tray lock sensor (LTLD),
the lift motor is turned ON to lift the tray.
When the tray is lifted, the tray LED blinks and stops at the paper
feed position (upper limit) by turning ON the upper limit sensor
(LUD).
When the tray stops at the paper feed position (upper limit), the tray
LED turns on.
When the paper empty sensor (LPED) turns ON within 1097 pulses
of the encoder signal from start of the tray lifting, the lift motor is
turned OFF to stop the tray, and the paper feed solenoid (LPFS) is
turned ON to lower the pick roller.
After that, the lift motor is turned ON again to lift the tray and stop it
at the upper limit sensor (LUD) ON position.
When the paper empty sensor (LPED) does not turn ON within
1097 pulses, the paper feed solenoid (LPFS) is turned ON with the
lift motor ON to lower the pick roller. The lift motor is stopped at the
upper limit sensor (LUD) ON position and the paper feed solenoid
is turned OFF.
Lifting (When LPED turns ON within 1097 pulses during lifting)
Lifting (When LPED does not turn ON within 1097 pulses dur-
ing lifting)
B. Lowering operation by paper empty detection
or pressing the tray SW
When the paper empty sensor (LPED) turns OFF with the tray at
the paper feed position (upper limit) or when the tray SW (LTLSW)
is pressed, the tray is lowered by 542 pulses of the encoder signal
and stopped at the paper supply position.
When the lower limit sensor (LDD) turns ON before lowering the
tray by 542 pulses of the encoder signal, the lift motor is turned
OFF to stop the tray.
When the tray is moving down, the tray LED blinks. When the tray
is stopped at the paper supply position, the tray LED turns OFF.
When the tray is stopped at the paper supply position, the tray lock
solenoid releases the lock so that the tray can be pulled out.
When the tray is lowered with the paper empty sensor (LPED) OFF,
the tray remains at the paper supply position and the tray lock is
released.
When the tray is lowered by pressing the tray SW (LTLSW), if the
tray is not pulled out from the paper supply position for 90sec, the
tray lock solenoid locks the tray. When the tray is locked securely,
the lift motor is turned ON to lift the tray.
When the tray is lifting, the tray LED blinks. When the upper limit
sensor (LUD) is turned ON, the tray stops at the paper feed position
(upper limit).
When the tray stop at the paper feed position (upper limit), the tray
LED turns ON.
Lowering operation (when paper empty is detected)
Lowering operation (when tray SW is pressed)
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detection)
LPSL
(Solenoid) Within 1097 pulses
LRE
(
Encoder si
g
nal
)
200msec
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detection)
LPSL
(Solenoid)
LRE
(Encoder signal)
1097
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detection)
LTLSW
(Tray SW)
LRE
(
Encoder si
g
nal
)
542
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detection)
LTLSW
(Tray SW)
LRE
(Encoder signal)
Less than 542

MX-LCX3N OPERATIONAL DESCRIPTION 5 – 2
C. Lowering operation by paper supply
If the tray is pulled out when it is at the paper supply position, the
tray lock solenoid keeps the lock open.
When the tray is pulled out, the tray LED turns OFF.
When the paper front surface sensor (LPUD) is turned ON for 2sec
while the tray is pulled out, the lift motor is turned ON to lower the
tray.
When the paper front surface sensor (LPUD) is turned OFF while
the tray is lowered, the lift motor is turned OFF to stop the tray.
When the lower limit sensor (LDD) is turned ON while the tray is
lowered, the lift motor is turned OFF to stop the tray regardless of
the state of the paper front surface sensor (LPUD).
Lowering operation (when paper is supplied or when the paper
front surface sensor is turned ON)
Lowering operation (when paper is supplied or when the lower
limit sensor is turned ON)
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.
When the transport clutch (LTRC) is turned ON with the transport
motor (LPFM) 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 sole-
noid (LPFS) is turned ON, the take-up roller is pushed down to
press paper.
Paper feed time chart
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LPUD
(Paper front surface
sensor)
LRE
(Encoder signal)
2 [sec]
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LPUD
(Paper front surface
sensor)
LRE
(Encoder signal)
2 [sec]
Resist stop
LPFM
(Transport motor)
LTD
(Transport sensor)
TRC-LCC
(Main unit
synchronous signal)
LTRC
(Transport clutch)
LPFC
(Paper feed clutch)
LPFS
(Paper feed solenoid)
Paper feed start
Clearance-between-
papers control timer
Clearance-between-
papers control timer
PIC drop timer PIC drop timer
Resist stop Resist stop
Paper feed clutch
OFF timer
Paper feed clutch
OFF timer
Preliminary
paper feed start
First sheet
Preliminary paper
feed complete
Paper feed start
Preliminary
paper feed start
Second sheet
Preliminary paper
feed complete
Paper feed start
Clearance-between-
papers control timer
Clearance-between-
papers control timer
PIC drop timer PIC drop timer
Paper feed clutch
OFF timer
Paper feed clutch
OFF timer
Paper feed clutch
OFF timer
Preliminary
paper feed start
Third sheet
Preliminary paper
feed complete
Paper feed start
Preliminary
paper feed start
Fourth sheet
Preliminary paper
feed complete
Paper feed start
Preliminary
paper feed start
Fifth sheet
Preliminary paper
feed complete
Paper feed start
Resist stop

MX-LCX3N OPERATIONAL DESCRIPTION 5 – 3
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.
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
4
1
32
5
6
7

MX-LCX3N DISASSEMBLY AND ASSEMBLY 6 – 1
MX-LCX3N Service Manual
[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 pickup roller and the paper
feed roller.
4) Loosen the screw, and remove the paper guide block.
5) Remove the pawl, and remove the reverse roller.
2. Each unit removal
A. Paper feed unit
1) Pull out the tray.
2) Remove the screw, and remove the left front cabinet.
3) Open the upper cover, and remove the screws.
4) Remove the upper cabinet.

MX-LCX3N DISASSEMBLY AND ASSEMBLY 6 – 2
5) Disconnect the connectors.
6) Remove the screws, and remove the paper feed unit.
B. Paper feed tray
1) Pull out the tray.
2) Remove the upper cabinet. (Refer to "A. Paper feed unit")
3) Remove the left front cabinet. (Refer to "A. Paper feed unit")
4) Remove the harness.
5) Remove the screws from the left and right rail sections, and
remove the tray unit from the rail.
C. Lift drive unit
1) Check that there is no paper, and lower the paper feed table to
the lower limit with the main unit simulation mode.
2) Remove the screws, and remove the rear cabinet.
3) Remove the connectors.
4) Remove the screws, and remove the lift drive unit.

MX-LCX3N DISASSEMBLY AND ASSEMBLY 6 – 3
3. Major parts removal
A. Motor (Main)
1) Remove the rear cabinet. (Refer to "2. Each unit removal")
2) Disconnect the connector.
3) Remove the screws, and remove the motor.
B. Lift motor
1) Remove the lift drive unit. (Refer to "2. Each unit removal")
2) Remove the screws, the E-ring, the bearing, and remove the
gear unit.
3) Remove the screws, and remove the lift motor.
4) Remove the ring, and remove the pulley.
*Applying grease at maintenance
A: Apply MOLYKOTE (UKOG-0062FCZZ)
B: Apply FLOIL (UKOG-0307FCZZ)
C. Paper feed solenoid
1) Remove the paper feed unit. (Refer to "2. Each unit removal")
2) Remove the cover.
3) Remove the screw, and remove the unit.
Disconnect the connector.
A
A
B

MX-LCX3N DISASSEMBLY AND ASSEMBLY 6 – 4
4) Remove the screws, and remove the solenoid.
D. Torque limiter
1) Remove the paper feed unit. (Refer to "2. Each unit removal")
2) Remove the screw, and remove the paper guide block.
3) Remove the screws, and remove the rear cover.
4) Disconnect the connector.
5) Remove the E-ring, and remove the torque limiter.
E. Transport roller
1) Remove the paper feed unit. (Refer to "2. Each unit removal")
2) Loosen the screws, and remove the paper guide block.
3) Remove the rear cover, and disconnect the connector. (Refer
to "D. Torque limiter")
4) Remove the screw and the E-ring, and remove the parts.
Remove the transport roller.
F. Handling solenoid
1) Check that there is no paper, and lower the paper feed table to
the lower limit with the main unit simulation mode.
2) Pull out the tray.
3) Remove the screws.
1
2
3
4

MX-LCX3N DISASSEMBLY AND ASSEMBLY 6 – 5
4) Remove the front cabinet, and disconnect the connector.
5) Remove the connector and the screw.
6) Remove the screws, and remove the solenoid.
G. Clutc h
1) Remove the upper cabinet.
2) Remove the rear cabinet.
3) Remove the left rear cabinet.
4) Disconnect the connector, and remove the harness.
Remove the drive frame.
5) Remove the clutch unit.
Remove the E-ring, and remove the clutch.
1
2
3

MX-LCX3N MAINTENANCE 7 – 1
MX-LCX3N Service Manual
[7] MAINTENANCE
1. Maintenance system table
✕: Checking (clean, replace or adjust as required) {: Cleaning ▲: Replace ∆: Adjust ✩: Lubricate : Position shift
No. Part name When
calling
Main unit
maintenance cycle Remarks
1 Pick-up roller/each paper feed roller ✕{
As a rough guide, these rollers should be replaced when the LCC paper feed
counter reaches a value of 100K (Sim22-9) or when one year has elapsed
since the start of use.
2 Torque limiter ✕✕
As a rough guide, the torque limiter should be replaced when the LCC paper
feed counter reaches a value of 800K (Sim22-9).
3 Each transport rollers ✕{
4 Each transport paper guides {{
5 Each gears ✕✕
6 Each belts ✕
7 Each sensors ✕✕

MX-LCX3N ADJUSTMENTS 8 – 1
MX-LCX3N Service Manual
[8] ADJUSTMENTS
Each adjustment item in the adjustment item list is indicated with its JOB number. Perform the adjustment procedures in the sequence of Job
numbers from the smallest to the greatest.
However, there is no need to perform all the adjustment items. Perform only the necessary adjustments according to the need.
Unnecessary adjustments can be omitted. Even in this case, however, the sequence from the smallest to the greatest JOB number must be
observed.
If the above precaution should be neglected, the adjustment would not complete normally or an error may occur.
1. List
2. Details
ADJ 1 Print off-center adjustment
1) Execute SIM.50-10. The displays shown at the right will
appear.
2) The print off-center adjustment value can be set for each tray.
3) Press the [↓] key on the touch panel to select “H:50:LCC”.
4) Then, enter your desired adjustment value with the [10] key.
(Default: 50 Adjustment range: from 1 to 99)
* If the adjustment value is decreased by 1, the main scanning
print position is shifted to the front side by 0.1mm.
* If the adjustment value is increased by 1, the main scanning
print position is shifted to the rear side by 0.1mm.
5) When the [EXECUTE] button is pressed, the [EXECUTE] but-
ton is highlighted, currently set value is saved into the
EEPROM and the RAM, and printing for the adjustment pat-
tern image is started. After printing is finished, the [EXECUTE]
button returns to the normal display status.
6) Check the adjustment pattern image position.
Measure the dimensions of the void area in the adjustment
pattern front and rear frame directions, and ensure that they
satisfy the conditions shown below.
If condition of A - B = 0±3.0mm is satisfied, no adjustment is
necessary.
If it does not satisfy the condition above, execute the proce-
dures shown below.
7) Change the adjustment value. Repeat the steps from 4 thru 6
until the condition described in the step 6) is satisfied.
8) After the adjustment is finished, escape from the simulation
mode with the CA key.
* The screen above is intended for the model of MX-5500N series.
In the installation on other models, standard values are different.
Job No. Adjustment item list Simulation to
be used
ADJ 1 Print off-center adjustment 50-10
ADJ 2 Resist amount adjustment ADJ 2A Change in the resist amount adjustment/deflection amount correction value 51-02
ADJ 2B Adjustment of the print lead edge adjustment 50-05
A-B = 0 3.0mm
+
-
B
A
EXECUTE
Printing is finished
EXECUTE
10 Key
A㧦100 㧧BK-MAG
B㧦50 㧧 CS1
C㧦50 㧧 CS2
D㧦50 㧧 CS3
0
A
:
PAPER CENTER OFFSET SETUP
100
㨇㨉
OK
TEST CLOSE
E㧦50 㧧 CS4
F㧦50 㧧 ADU
G㧦50 㧧 MFT
H㧦50 㧧 LCC
I㧦1㧧 MULTICOUNT
J㧦2㧧 PAPER㧦CS1
K㧦1㧧 DUPLEX㧦NO
EXECUTE
A㧦100 㧧 BK-MAG
B㧦50 㧧 CS1
C㧦50 㧧 CS2
D㧦50 㧧 CS3
0
H
:
PAPER CENTER OFFSET SETUP
60
㨉
OK
TEST CLOSE
E㧦50 㧧 CS4
F㧦50 㧧 ADU
G㧦50 㧧 MFT
H㧦60 㧧 LCC
I㧦1㧧 MULTICOUNT
J㧦2㧧 PAPER㧦CS1
K㧦1㧧 DUPLEX㧦NO
EXECUTE
[Switching of screen]
SIMULATION NO50-10
SIMULATION NO50-10
60㨪140
㨇1㨪99

MX-LCX3N ADJUSTMENTS 8 – 2
ADJ 2 Resist amount adjustment
2-A Changing resist amount adjustment/
deflection amount correction value
1) Execute SIM.51-2 by the key operation of the machine. Then,
the displays shown below appear.
2) Select the [ENGIN] button.
3) Press the [↓] key on the touch panel to select “G:50:LCC”.
4) Then, enter your desired adjustment value with the [10] key.
(Default: 50 Ajustment range: from 1 to 99)
* As the adjustment value is increased, the deflection amount
is also increased. As the adjustment value is decreased, the
deflection amount is also decreased.
(If the adjustment value is changed by “1”, the stop timing is
changed by 0.1mm (1.0msec).)
5) After the adjustment value is entered, press the [OK] key on
the touch panel to save the set value.
6) After the adjustment is finished, escape from the simulation
mode with the CA key.
* The screen above is intended for the model of MX-5500N series.
In the installation on other models, standard values are different.
2-B Print lead edge adjustment
1) Execute SIM.50-5 by the key operation of the machine. Then,
the displays shown on the next page appear.
2) Press the [↓] key on the touch panel to select “E:PAPER”.
3) Then, enter the adjustment value 6 with the [10] key, and press
the [OK] button.
(Adjustment value 6: LCC)
4) When the [EXECUTE] button is pressed, the [EXECUTE] but-
ton is highlighted, and printing for adjustment pattern image is
started with the currently set value. After printing is finished,
the [EXECUTE] button returns to the normal display status.
5) Check the adjustment pattern image position.
Measure the dimensions of the void area in the adjustment
pattern right and left frame directions, and ensure that they sat-
isfy the conditions shown below.
If condition of A=4.0±2.0mm, B=4.0±2.0mm is satisfied, no
adjustment is necessary.
If it does not satisfy the condition above, execute the proce-
dures shown below.
6) Change the adjustment values of the adjustment items
A(DEN-C) and B(DEN-B).
* As the adjustment value of the item A(DEN-C) is decreased
by 1, the print start position is moved to the lead edge side of
paper against the paper feed direction by 0.1mm.
* As the adjustment value of the item B(DEN-B) is decreased
by 1, the print range is increased to the trailing edge side of
paper against the paper feed direction by 0.1mm.
7) Repeat the steps from 4 thru 6 until the condition shown in the
step 5) is satisfied.
8) After the adjustment is finished, escape from the simulation
mode with the CA key.
[Switching of screen]
SIMULATION NO51-02
SIMULATION NO51-02
OK
㪈㪇 Key
0
A
:
REGIST ROLLER ADJUSTMENT
50
㨇㨉
O
K
TEST CLOSE
REGI1  REGI2 ENGIN
0
G:
REGIST ROLLER ADJUSTMENT
60
㨇㨉
O
K
TEST CLOSE
REGI1  REGI2 ENGIN
A: 50 : NORMAL_PLAIN_HIGH
B: 50 : NORMAL_PLAIN_MID
C: 50 : NORMAL_PLAIN_LOW
D: 50 : NORMAL_THIN_HIGH
E: 50 : NORMAL_THIN_MID
F: 50 : NORMAL_THIN_LOW
G: 50 : RANDOM_PLAIN_HIGH
H: 50 : RANDOM_PLAIN_MID
I: 50 : RANDOM_PLAIN_LOW
J: 50 : RANDOM_THIN_HIGH
K: 50 : RANDOM_THIN_MID
L: 50 : RANDOM_THIN_LOW
A: 50 : NORMAL_PLAIN_HIGH
B: 50 : NORMAL_PLAIN_MID
C: 50 : NORMAL_PLAIN_LOW
D: 50 : NORMAL_THIN_HIGH
E: 50 : NORMAL_THIN_MID
F: 50 : NORMAL_THIN_LOW
G: 60 : RANDOM_PLAIN_HIGH
H: 50 : RANDOM_PLAIN_MID
I: 50 : RANDOM_PLAIN_LOW
J: 50 : RANDOM_THIN_HIGH
K: 50 : RANDOM_THIN_MID
L: 50 : RANDOM_THIN_LOW
A = 4.0 2.0mm
+
-
B = 4.0 2.0mm
+
-
B
A

MX-LCX3N ADJUSTMENTS 8 – 3
* The screen above is intended for the model of MX-5500N series.
In the installation on other models, standard values are different.
[Switching of screen]
EXECUTE
Printing is finished
EXECUTE
A㧦35 㧧DEN-C
B㧦35 㧧 DEN-B
C㧦35 㧧 FRONT/REAR
D㧦1㧧 MULTI COUNT
0
A
:
SIMULATION NO50-05
SIMULATION NO50-05
LEAD EDGE ADJUSTMENT VALUE(PRINTER)
LEAD EDGE ADJUSTMENT VALUE(PRINTER)
35
O
K
TEST CLOSE
E㧦2㧧PAPER : CS1
F㧦1㧧DUPLEX : NO
DEN-C
DEN-B
FRONT/REAR
MULTI COUNT
PAPER : CS1
DUPLEX : NO
EXECUTE
A㧦35 㧧
B㧦35 㧧
C㧦35 㧧
D㧦1㧧
0
E: 
㨇 1㨪6㨉
O
K
TEST CLOSE
E㧦6㧧
F㧦1㧧
EXECUTE
6
[1㨪99 ]

MX-LCX3N SIMULATION 9 – 1
MX-LCX3N Service Manual
[9] SIMULATION
1. List
Code Function (purpose) Purpose Section
Main Sub
4
2Used to check the operations of the sensors and detectors in the large capacity tray
(LCC) and the control circuit. Operation test/Check Large capacity tray (LCC)
3Used to check the operations of the loads in the large capacity tray (LCC) and the
control circuit. Operation test/Check Large capacity tray
(LCC)
5 Used to check the operations of the clutch (LTRC) in the LCC and the monitor. Operation test/Check Large capacity tray
(LCC)
15 - Used to cancel the self-diag "U6-09 (large capacity paper feed tray)" trouble. Clear/cancel (Trouble
etc.) LCC

MX-LCX3N SELF DIAG MESSAGE AND TROUBLE CODE 10 – 1
MX-LCX3N Service Manual
[10] SELF DIAG MESSAGE AND TROUBLE CODE
1. Self diag
A. General
When an error occurs in the machine or when the life of a consum-
able part is nearly expired or when the life is expired, the machine
detects and displays it on the display section or notifies to the user
or the serviceman by remote email diagnostics. This allows the
user and the serviceman to take the suitable action. In case of a
failure, this feature notifies the occurrence of a failure and stops the
machine to minimize the damage.
B. Function and purpose
1) Securing safety. (The machine is stopped on detection of a
failure.)
2) The damage to the machine is minimized. (The machine is
stopped on detection of trouble.)
3) By displaying the trouble content, the trouble position can be
quickly identified. (This allows to perform an accurate repair,
improving the repair efficiency.)
4) Preliminary warning of running out of consumable parts allows
to arrange for new parts in advance. (This avoids stopping of
the machine due to running out the a consumable part.)
C. Self diag message kinds
The self diag messages are classified as shown in the table below.
D. Self diag operation
(1) Self diag operation and related work flow
The machine always monitors its own state.
When the machine recognizes a trouble, it stops the operation and
displays the trouble message.
A warning message is displayed when a consumable part life is
nearly expired or is expired.
When a warning message is displayed, the machine may or may
not be stopped.
The trouble messages and the warning messages are displayed by
the LCD.
Some error messages are automatically cleared when the trouble
is repaired. Some other error must be cleared by a simulation.
Some warning messages of consumable parts are automatically
cleared when the trouble is replaced. Some other warning mes-
sages must be cleared by a simulation.
Class 1 User Warning of troubles which can be recovered by
the user. (Paper jam, consumable part life
expiration, etc.)
Serviceman Warning of troubles which can be recovered only
by a serviceman. (Motor trouble, maintenance,
etc.)
Other —
Class 2 Warning Warning to the user, not a machine trouble
(Preliminary warning of life expiration of a
consumable part, etc.)
Trouble Warning of a machine trouble. The machine is
stopped.
Other —
Troubleshoot the cause.
YES
NO
Detects/analyzes
the content.
Trouble/Warning Warning
Trouble
The machine is stopped.
The content is displayed.
Trouble/Warning Warning
A consumable
part has reached
its lifetime.
Trouble
Replace or supply
the consumable part.
Cancel the self-
diagnostic message with
the diagnostics
(test commands).
Reset
Standby state
Monitors the machine
conditions.
Repair