SHARP MX-LCX6 Service Manual

SERVICE MANUAL

CODE: 00ZMXLCX6/S1E

DIGITAL
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-LCX6

[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-LCX6

[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-LCX6

Notes

* If this model is installed to MX-850/M950/M110M, it is necessary to install

MX-MFX1 sold separately.

MX-LCX6 PRODUCT OUTLINE 1 – 1

MX-LCX6

[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
11x17 No

Paper size

8.5x14 No

8.5x13 No

8.5x11 Yes

8.5x11R No

7.25x10.5R No

5.5x8.5R 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-LCX6 SPECIFICATIONS 2 – 1

MX-LCX6

[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-LCX6 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 1

2. PWB, sensor, switch, heater

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

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

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 high.

Detects open/close of the upper
door.

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

MX-LCX6 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-LCX6

[5] OPERATIONAL DESCRIPTION

1. Lift operation

Service Manual

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

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.

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.)

(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

(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

Paper feed start

Preliminary

First sheet

Preliminary paper
feed complete
Paper feed start

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-between­papers control timer

PIC drop timer PIC drop timer PIC drop timer PIC drop timer

Paper feed clutch

OFF timer

Preliminary

paper feed start

Second sheet

Clearance-between­papers control timer

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

Resist stop

Clearance-between-

papers control timer

Paper feed clutch

OFF timer

paper feed start

Preliminary

Fourth sheet

Preliminary paper
feed complete

Resist stop Resist stop

Clearance-between­papers control timer

Paper feed clutch

OFF timer

MX-LCX6 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-LCX6 OPERATIONAL DESCRIPTION 5 – 2

MX-LCX6

[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-LCX6 DISASSEMBLY AND ASSEMBLY 6 – 1

B. Paper feed tray

1) Pull out the tray.

2) Loosen the stopper fixing screw (1) on the lower right side of

the paper tray and remove the stopper.

3) Remove the screws from the left and right rail sections.

C. Drive unit

1) Remove the screw, and remove the rear cover.

2) Remove the connectors (2 positions).

4) Remove the tray unit from the rail.

3) Remove the screw, and remove the drive unit.

3. Major parts removal

A. Motor (Main)

1) Remove the screw, and remove the rear cover.

2) Disconnect the connector.

3) Remove the screw, and remove the motor.

MX-LCX6 DISASSEMBLY AND ASSEMBLY 6 – 2

B. Lift motor

1) Remove the drive unit.

2) Remove the E-ring, and remove the parts.

3) Remove the screw, and remove the cover.

C. Clutch

1) Remove the paper feed unit. (Refer to "3. Each unit removal.")

2) Remove the screw, and remove the cover.

3) Remove the E-ring, and remove the parts.

4) Remove the screw, and remove the lift motor.

5) Remove the ring, and remove the pulley.

4) Disconnect the connector, and remove the screw.

5) Remove the frame.

MX-LCX6 DISASSEMBLY AND ASSEMBLY 6 – 3

6) Remove the connector, and the E-ring, and remove the paper

feed, transport clutch, respectively.

D. Paper feed solenoid

1) Remove the paper feed unit.

2) Remove the cover.

3) Remove the screw, and remove the unit.

E. Torque limiter

1) Remove the paper feed unit.

2) Remove the cover.

3) Remove the E-ring and the screw, and remove the parts.

4) Lift the shaft, and remove the torque limiter.

4) Disconnect the connector.

5) Remove the screw, and remove the solenoid.

MX-LCX6 DISASSEMBLY AND ASSEMBLY 6 – 4

F. Transport roller

1) Remove the paper feed unit.

2) Remove the cover.

3) Remove the spring, and remove the screw.

4) Remove the plate cover, and remove the lever.

5) Remove the clutch.

6) Remove the screw and the E-ring, and remove the parts.

7) Remove the transport roller.

MX-LCX6 DISASSEMBLY AND ASSEMBLY 6 – 5

MX-LCX6

[7] MAINTENANCE

Service Manual

1. Maintenance system table

✕ : Checking (clean, replace or adjust as required) { : Cleaning ▲ : Replace ∆ : Adjust ✩ : Lubricate  : Position shift

No. Part name

1 Pick-up roller/each paper feed roller ✕ {

2 Torque limiter ✕✕

3 Each transport rollers ✕ {
4 Each transport paper guides {{
5 Each gears ✕✕
6 Each belts ✕
7 Each sensors ✕✕

When

calling

Main unit

maintenance cycle

Remarks

As a rough guide, these rollers should be replaced when the LCC paper feed
counter reaches a value of 200K (Sim22-9) .

As a rough guide, the torque limiter should be replaced when the LCC paper
feed counter reaches a value of 800K (Sim22-9).

MX-LCX6 MAINTENANCE 7 – 1

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 PAPE R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

:

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 PAPE R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-LCX6

[8] ADJUSTMENTS

Service Manual

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

Job No. Adjustment item list

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

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 pat­tern 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.

Simulation to

be used

ADJ 2B Adjustment of the print lead edge adjustment 50-05

A

B

If condition of A - B = 0±3.0mm is satisfied, no adjustment is
necessary.

If it does not satisfy the condition above, execute the proce­dures 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.

+

A-B = 0 3.0mm

-

MX-LCX6 ADJUSTMENTS 8 – 1

H

A

K

K

ADJ 2 Resist amount adjustment

2-A Changing resist amount adjustment/

deflection amount correction value

1) Execute SIM.51-2. 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.

[Switching of screen]

SIMULATION NO51-02

TEST

REGIST ROLLER ADJUSTMENT

50

:

㨇㨉

REGI1

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



REGI2 ENGIN

㪈㪇

Key

OK

0

CLOSE

O

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] but­ton 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 sat­isfy the conditions shown below.

A

+

A = 4.0 2.0mm

­+

B = 4.0 2.0mm

-

B

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 proce­dures 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.

0

SIMULATION NO51-02

TEST

REGIST ROLLER ADJUSTMENT

60

G:

㨇㨉

REGI1

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



REGI2 ENGIN

CLOSE

O

MX-LCX6 ADJUSTMENTS 8 – 2

[Switching of screen]

A

K

K

SIMULATION NO50-05

TEST

LEAD EDGE ADJUSTMENT VALUE(PRINTER)

:

[1㨪 99 ]

35

A㧦 35

㧧 DE

B㧦 35 㧧 DEN-B

C㧦 35 㧧 FRONT/REAR

D㧦 1 㧧 MULTI COUNT

E㧦 2 㧧 PAPER : CS1

F㧦 1 㧧 DUPLEX : NO

0

CLOSE

N-C

EXECUTE

SIMULATION NO50-05

TEST

LEAD EDGE ADJUSTMENT VALUE(PRINTER)



E:

㨇 1㨪 6 㨉

A㧦 35

㧧

B㧦 35 㧧

6

C㧦 35 㧧

D㧦 1 㧧

E㧦 6 㧧

F㧦 1 㧧

DEN-C

DEN-B

FRONT/REAR

MULTI COUNT

PAPER : CS1

DUPLEX : NO

EXECUTE

EXECUTE

Printing is finished

EXECUTE

O

0

CLOSE

O

MX-LCX6 ADJUSTMENTS 8 – 3

MX-LCX6

[9] SIMULATION

1. List

Service Manual

Code

Main Sub

Used to check the operations of the sensors and detectors in the large capacity tray

2

(LCC) and the control circuit.

4

15 - Used to cancel the self-diag "U6-09 (large capacity paper feed tray)" trouble.

Used to check the operations of the loads in the large capacity tray (LCC) and the

3

control circuit.

5 Used to check the operations of the clutch (LTRC) in the LCC and the monitor. Operation test/Check

2. Details of trouble code

4

Function (purpose) Purpose Section

4-3

Purpose

Function (Purpose)

4-2

Purpose

Function (Purpose)

Operation test/check

Used to check the operations of the sen­sors and the detectors in the large capacity
tray (LCC) and the control circuits.

Section

Large capacity tray (LCC)

Operation/Procedure

1) The operation conditions of the sensors and the detectors are
displayed.

2) The sensor and the detector which are turned ON are high­lighted.

3) When [USER SETTING] key is pressed, the screen returns to
the SUB code entry menu.

<A4/A3 LCC sensor>

NO. Display Sensor name

1 LOSW/LDSW Upper open/close detection SW
2 LCD/LCSW Tray insertion detection/ cassette detection SW
3 LTOD Main unit connection sensor
4 LTLSW Tray lift SW * A3 LCC only
5 LPED Tray paper presence sensor
6 LLD/LDD Tray lower limit sensor
7 LUD Tray upper limit sensor
8 LTD/LPFD Transport sensor
9 LPUD Paper upper surface sensor * A3 LCC only
10 LIPSW Illegal paper detection SW * A3 LCC only
11 LWRSW Reverse winding detection SW * A3 LCC only
12 LTLD Tray lock sensor * A3 LCC only
13 TRC_MON Main unit synchronization signal
14 LLSW Upper limit SW
15 +24VM 24V power monitor
16 LRE Lift motor encoder sensor

Section

Operation/Procedure

1) Select a target load of the operation check with the touch panel
key.

2) Press [EXECUTE] key.

The selected load performs the operation.

When [EXECUTE] key is pressed, the operation is terminated.

3) When [SYSTEM SETTINGS] key is pressed, the screen
returns to the SUB code entry menu.

<A4/A3 LCC load item>

NO. Display Item Content

1 LFAN Separation auxiliary fan * A3 LCC only
2 LTLS Tray lock solenoid * A3 LCC only
3 LTLLED Tray LED * A3 LCC only
4 LTCL/LTRC Transport clutch
5 LPSL Paper feed solenoid
6 LPFCL/LPFC Paper feed clutch
7 LLM Lift motor
8 LTM/LPFM Transport motor

Operation test/Check

Operation test/Check

Clear/cancel (Trouble
etc.)

Large capacity tray
(LCC)

Large capacity tray
(LCC)
Large capacity tray
(LCC)

LCC

Operation test/check

Used to check the operations of the loads
in the desk/large capacity tray (LCC) and
the control circuits.

Desk/Large capacity tray

MX-LCX6 SIMULATION 9 – 1

4-5

Purpose

Function (Purpose)

Operation test/check

Used to check the operations of the trans­port clutch (LTRC) in the LCC and the mon­itor.

Section

Large capacity tray (LCC)

Operation/Procedure

• Press [LTRC] key to check the synchronization signal.

When normal: ON (highlighted) When abnormal: OFF

• Press [LTRC] key with the display highlighted to check the syn­chronization signal.

When normal: OFF When abnormal: ON (highlighted)

When [SYSTEM SETTINGS] key is pressed, the screen returns
to the SUB code entry menu.

Button Content

LTRC A4/A3LCC transport clutch

15

15--

Purpose

Function (Purpose)

Section

Item

Operation/Procedure

1) Press [EXECUTE] key.

2) Press [YES] key to execute cancellation of the trouble.

Clear/cancel (Trouble etc.)

Used to cancel the self-diag "U6-09 F3-12,
F3-22(largecapacity paper feed tray, paper
feed tray 1, 2)" trouble.

LCC

MX-LCX6 SIMULATION 9 – 2

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

MX-LCX6

[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 consum­able 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.

Service Manual

Class 1 User Warning of troubles which can be recovered by the

Class 2 Warning Warning to the user, not a machine trouble

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 mes­sages must be cleared by a simulation.

user. (Paper jam, consumable part life expiration,

Service
man

Other -

Trouble Warning of a machine trouble. The machine is

Other -

etc.)
Warning of troubles which can be recovered only by
a serviceman. (Motor trouble, maintenance, etc.)

(Preliminary warning of life expiration of a
consumable part, etc.)

stopped.

MX-LCX6 SELF DIAG MESSAGE AND TROUBLE CODE 10 – 1

2. Trouble code list

No.

MAIN
CODE

1 U6 09 Lift motor trouble LCC Tray lift-up Check connection.
2 20 Communication trouble LCC LCC communication Turn OFF/ON the power.
3 21 Transport motor trouble LCC Paper feed Check connection.
4 22 24V trouble LCC Power ON Check connection.
5 51 LCC incompatibility trouble LCC Power ON Check connection.

3. Trouble code details

U6-09 LCC lift motor trouble

Trouble content • The encoder input value is not changed in

Section PCU
Case 1 Cause Sensor trouble, LCC control PWB trouble, gear

Check
and
Remedy

U6-20 LCC communication trouble

Trouble content LCC communication error. Communication line test

Section PCU
Case 1 Cause Connector and harness connection trouble or

Check
and
Remedy

SUB

CODE

0.2sec (1st time)/0.5sec (2nd time and later)
after rotation of the motor.

• The motor is rotated for 24sec or more.

breakage, lift motor trouble
Use SIM4-2 and 4-3 to check the operation of the

sensor and the lift motor. Use SIM15 to cancel the
trouble.

error after turning ON the power or canceling the
exclusive simulation. LCC and machine model
codes discrepancy error

disconnection, LCC control PWB trouble, control
(PCU) PWB trouble, malfunction due to electrical
noises

Turn OFF/ON the power to cancel the trouble.
Check the connector and the harness of the
communication line.

Title (Content) Section Operation mode Countermeasure (Remedy) Note

U6-22 LCC 24V power abnormality

Trouble content DC24V power is not supplied to LCC.
Section PCU
Case 1 Cause Connector and harness connection trouble or

Check
and
Remedy

disconnection, LCC control PWB trouble, power
unit trouble

Check the connector and the harness of the power
line. Check that the power unit and the LCC control
PWB is of 24V.

U6-51 LCC incompatibility trouble

Trouble content Detection of incompatible LCC connection.
Section PCU
Case 1 Cause Connection of incompatible LCC, is detected.

Check
and
Remedy

Install compatible LCC.

U6-21 LCC transport motor trouble

Trouble content After passing 1 sec from turning ON the motor, the

Section PCU
Case 1 Cause Motor lock, motor RPM abnormality, an overcurrent

Check
and
Remedy

lock state of the motor lock signal is detected
continuously for 1 sec.

to the motor, LCC control PWB trouble
Use SIM4-3 to check the operation of the transport
motor.

MX-LCX6 SELF DIAG MESSAGE AND TROUBLE CODE 10 – 2

MX-LCX6

[11] ELECTRICAL SECTION

Service Manual

1. Electronic/mechanical parts relationship diagram

CN-B
B8B-PH-K-S
1

+5V
+5V

2
3

LRE

4

LDD

5

GND2

6

GND2

7

+24V
(/LTLS)

8

+5V

+5VR

+5V

+5V

+5V

20

22

23

24

21

212
3

212

SMR-03V-N

1

3

1

3

SMP-03V-NC

SMP-03V-NC SMR-03V-N

CN-E
B14B-PHDSS-B
+5V
LCD

GND2
LLM 5
N.C.
LLM(GND)
N.C.

+5V1

23/LTOD

GND2

LTRC

/LPFM-CLK
LPFM-T 10
/LPFM-EN
GND1 1 2
GND1 13
+24V(LOSW) 14

+24V(L24VM)

GND2

GND28+24V(LDSW)

GND2

GND2

+24V(LLSW)

+24V(L24VM)

6

7910

LPFC

B10B-PHDSS-B

+24V(LLSW)

GND2

21345

ELR-04NV ELP-04NV

LCC MAIN PWB CR

CN-C

B24B-PHDSS-B

/LPED

/LPFD

/LTOD

16

GND2

LUD

15

13

14

GND2

GND1

GND2

GND2

GND2

GND2

9

8

6

10

12

11

7

SMR-03V-N SMP-03V-NC

LRE

1

GND22
+5V

3

LDD

1

GND22
+5V

33

/LTRC

/LPFS

+24V

4

3

5

11

22

33

/LPFC

2

+24V

1

SMP-18V-NC

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

179228-3

+5V

EXIN2

EXIN1

19

18

17

1
2
3GND2
4

6
7
8
9

11

CN-D

SMR-18V-N
1
2
3
4
5
6

7
8

9

10

11

12

13

14

15

16

17

18

121

434

SMP-03V-NC SMR-03V-N

1

3

2
3

SMP-03V-NC

SMR-03V-N SMP-03V-NC

CZHR-03V-S

1 +24V
2

N.C.
/LTRC3

1
22
3

ELP-03V

PHR-5
1
2
3
4 LPFM-T
5

PS-187-3V

FPS-187

1

212
3

3

1
232
3

+24V
GND1
/LPFM-EN

/LPFM-CLK

1COM
2

ON
NC3

1 COM
2

ON
NC3

1
2

1
2

ELR-03V

1

PHR-3

PHR-3

SMR-03V-N
1
2
3

SMR-02V-NSMP-02V-NC
1
2

PHR-3

1LCD
2

LLM(GND)

1

LLM

2

1

GND2

2

/LPED
+5V33

1GND2

LUD

2

+5V

3

13+5VR

GND2

2

/LPFD

GND2
+5V3

LPED

LPFS

LPFD

LUD

LLSW

LTOD

LDSW

LCD

LPFM

LLM

LRE

LDD

MX-LCX6 ELECTRICAL SECTION 11 – 1

2. Block diagram

+24V

Upper door latch switch

LDSW

24V monitoring circuit

L24VM

Upper door

-

LDSW

monitoring circuit

LPFM

/LPFM

/LPFM-CLK

LPFM-T

LLSW

CPU (H8/3687HV)

Upper limit switch

Upper limit

-

LLSW

monitoring circuit

Tray upper limit sensor

LLM

Current control

+5V

LUD

circuit

LCC lift motor

Poly switch1.1A

Lift motor drivecircuit

Tray lower limit sensor

+5V

LDD

Sensor input

circuit

Paper-on-tray sensor

+5V

LPED

Transport sensor

+5V+5V

LPFD

Main unit connection

sensor

+5V

LTOD

Tray insertion sensor

+5V

LCD

Lift motor encoder

sensor

+5V

LRE

LCC paper feed clutch

+24V

LPFC

Transistor array

LCC transport clutch

LCC paper feed solenoid

+24V

+24V

LPFS

LTRC

(TD62003AP)

MX-LCX6

Xtal

7.37MHz

EEPROM

Input buffer

Input buffer

Input buffer

Output buffer

/DSR-LCC

/DTR-LCC

RES-LCC

/TRC-LCC

Input buffer

+5V

+5V

GND2

GND2

+24V

+24V

GND1

Heater

FF

Ground

AC-L

AC-N

On-board write circuit

Output buffer

LCC MAIN PWB CR

/RXD-LCC

/TXD-LCC

MX-2300/2700

MX-LCX6 ELECTRICAL SECTION 11 – 2

3. Wiring diagram

S

E

LCC

D

C

24

+5VR

5678

10

16

14

18

12

11

17

23

19

20

22

21

+5V

+5V

+5V

+5V

+5V

EXIN2

EXIN1

/LTOD

15

/LPFD

/LPED

9

8

13

GND2

GND2

GND2

GND2

GND2

LUD

7

GND2

6

GND1

5

/LPFS

4

/LTRC

3

+24V

2

/LPFC

1

+24V

CN-C

B24B-PHDSS-B

6

7910

GND2

GND28+24V(LDSW)

GND2

+24V(L24VM)

+24V(L24VM)

21345

GND2

+24V(LLSW)

GND2

+24V(LLSW)

CN-D

B10B-PHDSS-B

CN-E
B14B-PHDSS-B

CN-B
B8B-PH-K-S
1

+5V
+5V

2
3

LRE
LDD

4

GND2

5
6

GND2
+24V

7
8

(/LTLS)

LCC MAIN PWB CR

GND

+5V 5

P85

/NMI

+5V

/RES_LCC

GND

P86

P87

TXD_LCC

RXD_LCC

N.C.

/TXD_LCC

RES_LCC

B14B-PHDSS-B

CN-F

/DSR-LCC

/TRC-LCC

/DTR-LCC6+24V

/RXD-LCC

/TXD-LCC

RES-LCC

GND2

+5V
LCD

GND2
LLM 5
N.C.
LLM(GND)
N.C.
/LPFM-CLK
LPFM-T
/LPFM-EN
GND1 12
GND1 13
+24V(LOSW) 14

N.C.

GND1

+5V

N.C.

CN-A

B12B-PHDSS-B

1
2
3GND2
4

6
7
8
9
10
11

B

121314

11

9

4

3

2

7

6

8

10

1

9

413

5

12

10

11

2

7

8

A

87 65

MX-LCX6 ELECTRICAL SECTION 11 – 3

1234

SMR-18V-N

SMP-18V-NC

1

1
2

2
3

3

4

4

5

5

6

6
77
8

8
9

9
10

10

11

11

12

12 3
131413

14
15

15
16

16
17

17
18

18

ELR-04NV ELP-04NV

121

2

3
434

SMR-03V-N SMP-03V-NC

11

22

33

SMP-03V-NC

ELP-03V

1
2
3

1
232
3

SMR-03V-N
1
2
3

ELR-03V
1

SMP-03V-NC

SMR-03V-N

1

1
2

2
3

SMR-02V-NSMP-02V-NC

1

1

2

2

SMR-03V-N SMP-03V-NC

1

212

3

3

< Paper feed unit >

PHR-3

GND2

1

/LPED

2
3

PHR-3

1 GND2
2
3

PHR-3

13+5VR
2

CZHR-03V-S

1 +24V
2

PS-187-3V

1 COM
2
3

FPS-187

1COM
2

179228-3

1
2
3

1LCD
2

1

2

PHR-5
1
2
3
4
5

GND2
/LPFD

N.C.
/LTRC3

NC

NC3

+5V
/LTOD
GND2

+5V3

LLM(GND)

LLM

+24V
GND1
/LPFM-EN
LPFM-T
/LPFM-CLK

LPED

+5V

LUD LUD
+5V

LPFS

LPFC

LPFD

LTRC

LLSWON

LDSWON

LTOD

LCDGND2

LLM

LPFM

Paper-on-tray sensor

Tray upper limit sensor

LCC paper feed solenoid

LCC paper feed clutch

Transport sensor

LCC transport clutch

Upper limit switch

Upper door latch switch

Main unit connection sensor

Tray insertion sensor

LCC lift motor

LCC transport motor

Main unit

D

C

SMP-03V-NC SMR-03V-N

SMP-03V-NC SMR-03V-N

212
3

212

1

3

1

3

ELP-02V ELR-02V

2112

Ground

Heater

Main unit connection

ELR-12V

ELP-12V

4

4

AC-L(H)

5

5

F.G.

12

12

AC-N(H)

ELP-15V

ELR-15V

1

1

N.C.

2

2

N.C.

3

3

/TXD-LCC

4

4

/RXD-LCC
/DTR-LCC

5

5

6

6

/DSR-LCC

7

7

RES-LCC
F.G.

8

8

9

9

+5V

10

10

GND2

11

11

+24V

12

12

GND1
/TRC-LCC

13

13

14

14

N.C.

15

15

N.C.

LRE

1

GND2

2
3

LRE

+5V

Lift motor encoder sensor

B

A

LDD

1

33

LDD

GND22
+5V

Tray lower limit sensor

4

3

21

MX-LCX6 ELECTRICAL SECTION 11 – 4

LEAD-FREE SOLDER

The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder.

The alphabet following the LF mark shows the kind of lead-free solder.

Example:

<Solder composition code of lead-free solder>

Solder composition

Sn-Ag-Cu

Sn-Ag-Bi
Sn-Ag-Bi-Cu

Sn-Zn-Bi

Sn-In-Ag-Bi

Sn-Cu-Ni

Sn-Ag-Sb

Bi-Sn-Ag-P
Bi-Sn-Ag

5mm

Lead-Free

Solder composition
code (Refer to the
table at the right.)

a

(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD

When repairing a lead-free solder PWB, use lead-free solder thread.

Never use conventional lead solder thread, which may cause a breakdown or an accident.

Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the
exclusive-use soldering iron is recommended.

Solder composition code

a

b

z

i

n

s

p

(2) NOTE FOR SOLDERING WORK

Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering
capacity is inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land
separation or may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when
completion of soldering is confirmed.

Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.

If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron
tip after completion of soldering work.

If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.

COPYRIGHT©XXXX BYSHARP CORPORATION

ALL RIGHTS RESERVED.

No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.

* Applicable to battery-operated equipment

* Applicable to battery-operated equipment

SHARP CORPORATION
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan

2007 May Printed in Japan