DOWNLOAD Sharp MX-LCX1 (serv.man2) Service Manual ↓ Size: 11.24 MB | Pages: 30 in PDF or view online for FREE

MX-LCX1  DISASSEMBLY AND ASSEMBLY  6 – 4

6)

Disconnect the connectors. Remove the E ring and remove the
paper feed clutch and transport clutch. 

1)

Remove the paper feed unit. 

2)

Remove the cover.

3)

Remove the screws and remove the solenoid unit.  Disconnect
the connectors.

4)

Remove the screws and remove the solenoid. 

1)

Remove the paper feed unit. 

2)

Remove the cover.

3)

Remove the E ring and screws, and remove each part. 

4)

Lift the shaft, and remove the torque limiter. 

1)

Remove the paper feed unit. 

2)

Remove the cover.

3)

Remove the spring.  Remove the screws. 

4)

Remove the plate cover.  Remove the lever.

5)

Remove the clutch. 

6)

Remove the screws and E ring, and remove each part. 

7)

Remove the transport roller.

MX-LCX1  MAINTENANCE  7 – 1

Service Manual      

 

✕

: Check (clean, replace or adjust as required)   {: Clean    : Replace    : Adjust   ✩: Lubricate   †: Relocate

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 100K (Sim22-9). 

3

Each transport rollers

✕

{

4

Each transport paper guides

{

{

5

Each gears

✕

✕

6

Each belts

✕

7

Each sensors

✕

✕

MX-LCX1  ADJUSTMENT  8 – 1

Service Manual      

 

Each adjustment item in the adjustment item list is indicated with its
JOB number.  The adjustment procedures should be performed in
the ascending order of Job numbers.
However, you do not have to always perform all the adjustment
items.  Perform only the necessary adjustments according to the
actual conditions. 
Skip any unnecessary adjustment items, and perform the next nec-
essary item.  Even with some items skipped, the adjustment proce-
dures should be performed in the ascending order of Job numbers.
Failure to perform the adjustment items in the correct order may
result in adjustment errors or some other problems. 
To start a simulation: 
1)

Press the [COPY MODE] key to turn on Copy mode. 

2)

Press the following keys exactly in this sequence: 
[P] (Program), [*] (asterisk),  [C] (Copy), [*]. 

3)

This displays the simulation Main Number Entry screen (which
means that the system is waiting for user input). 

 

1)

 Run SIM 50-10 using the keypad on the main unit. 
 The following screen appears. 

2)

This screen allows you to configure the print off-center adjust-
ment value for each paper feed tray. 

3)

On the touch panel, press [

↓] to select "G: 50 :LCC." 

4)

Enter the desired adjustment value through the numeric key-
pad. 
(This value, which defaults to 50, can be adjusted within the
range of 1 to 99).
• Reducing the adjustment value by 1 causes the main scan/

print position to shift by 0.1 mm toward the rear. 

• Increasing the adjustment value by 1 causes the main scan/

print position to shift by 0.1 mm toward the front. 

5)

After entering the adjustment value, press the [EXECUTE] key
on the touch panel to start printing and save the setting. 

6)

Check that the adjustment pattern image is printed in the cor-
rect position.
Measure the dimensions of the void areas on the front- and
rear-frame sides of the adjustment pattern image, and make
sure that the following conditions are met: 

No adjustment is needed if A - B = 0 

± 3.0 mm.

If the above condition is not met, do the following:

7)

Change the adjustment value. 
(Enter a new adjustment value and press the [OK] key).
Changing the adjustment value by 1 shifts the position by
approximately 0.1 mm. 
Repeat steps 4) to 6) until the condition shown in step 6) is sat-
isfied. 

8)

After you have completed the adjustment, exit from simulation
mode by pressing the [CA] key.

 

1)

Run SIM 51-2 using the keypad on the main unit. 
The following screen appears. 
This screen allows you to configure the resist amount adjust-
ment value for each paper feed tray. 

2)

On the touch panel, press [

↓]  to select "Q: 50 :A4LCC." 

3)

Enter the desired adjustment value through the numeric key-
pad. 
(This value, which defaults to 50, can be adjusted within the
range of 1 to 99).
• Increasing the adjustment value by 1 causes the resist

amount to increase by 1 msec. 

4)

After entering the adjustment value, press the [OK] key on the
touch panel to save the setting. 

5)

After you have completed the adjustment, exit from simulation
mode by pressing the [CA] key.

1

Print off-center adjustment

50-10

2

Regist amount adjustment

51-2

3

Print leading edge adjustment

50-5

0

A:

A:100

B:50

; BK-MAG

; MTF

SIMULATION NO.50-10

PAPER CENTER OFFSET SETUP

100

=

64-140 ]

OK

TEST

EXECUTE

CLOSE

C:50

; CS1

D:50

; CS2

A-B = 0

3.0mm

+

-

B

A

0

A:

A:50

B:50

C:50

D:50

; NORMAL_PLAIN_HIGH

; NORMAL_PLAIN_LOW

; NORMAL_THIN_HIGH

; NORMAL_THIN_LOW

SIMULATION NO.51-02

REGIST ROLLER ADJUSTMENT

50

[ 1- 99 ]

OK

TEST

CLOSE

SIDE1

SIDE2

ENGIN

MX-LCX1  ADJUSTMENT  8 – 2

 

1)

 Run SIM 50-5 using the keypad on the main unit. 
 The following screen appears. 

2)

Press the [EXECUTE] button to highlight it. The main unit
starts printing an adjustment pattern image using the currently
configured values.   Upon completion, the [EXECUTE] button
becomes unhighlighted. 
* To save the currently configured settings into the EEPROM

and RAM, press any of the following: [

↓] or [↑] button, [OK]

button, [EXECUTE] button, [Color] or [Monochrome] key.

* At any time during printing, you can suspend the test print by

pressing any of the following: the [C] key, [CA] key, [SYS-
TEM SETTING] key, and [EXECUTE] button.

* After being stopped from printing, the main unit resumes the

self-print test when it becomes ready. 

3)

Select "E: PAPER" and choose the desired paper feed location
(in this example, LCC). 

4)

Check the adjustment pattern image is printed in the correct
position.
Measure the dimensions of the void areas on the left- and
right-frame sides of the adjustment pattern image, and make
sure that the following conditions are met: A=4.0

±2.0 mm

B=4.0

±2.0 mm. If these conditions are met, no adjustment is

needed. 
If the above conditions are not satisfied, proceed to steps 5)
and 6). 

5)

Change the adjustment values for adjustment items A (DEN-
C) and B (DEN-B). 
* Reducing the adjustment value for item A (DEN-C) by 1

causes the print start point relative to the paper transport
direction to shift toward the paper leading edge by 0.1 mm. 

* Reducing the adjustment value for item B (DEN-B) by 1

causes the sub-scan-directional print range, relative to the
paper transport direction, to decrease by 0.1 mm. 

6)

Repeat steps 2) to 5) until the conditions shown in step 4) are
satisfied. 

<< Description of Items >>

0

A:

A:30

B:20

; DEN-C

; DEN-B

SIMULATION NO.50-05

LEAD EDGE ADJUSTMENT VALUE(PRINTER)

30

[ 1-99 ]

OK

TEST

EXECUTE

CLOSE

C:20

; FRONT/REAR

D: 1

; MULTI COUNT

A = 4.0

2.0mm

+

-

B = 4.0

2.0mm

+

-

B

A

A

 DEN-C

Print leading edge 
adjustment

1 to 99

30

This adjustment value is intended to adjust the print leading edge for the printer. 
Reducing the adjustment value for item A (DEN-C) by 1 causes the print start 
point relative to the paper transport direction to shift toward the leading edge by 
0.1 mm. 

B

DEN-B

Sub-scan-directional 
print range adjustment

1 to 99

20

This adjust value controls how much void will be created at the trailing edge of the 
paper.  Reducing the adjustment value for item B (DEN-B) by 1 causes the sub-
scan-directional print range, relative to the paper transport direction, to decrease 
by 0.1 mm.