DOWNLOAD Sharp MX-2614N / MX-3114N (serv.man7) Service Manual ↓ Size: 70.27 MB | Pages: 127 in PDF or view online for FREE

MX-3114N  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 23

F1

Fuse

20A 250V 

T10AH 250V 

AC Power PWB

F2

Fuse

-

T10AH 250V 

AC Power PWB

F001

Fuse

T12AH 250V

T6.3AH 250V

DC Power PWB

F003

Fuse

T3.15AH 250V

T3.15AH 250V

DC Power PWB

F101

Fuse

F10AH 250V (F101)

F5AH 250V (F101)

DC Power PWB

F401

Fuse

F3.15AH 250V (F401)

F2AH 250V (F401)

DC Power PWB

F201

Fuse

6.3A

6.3A

DC Power PWB

F202

Fuse

6.3A

6.3A

DC Power PWB

F203

Fuse

6.3A

6.3A

DC Power PWB

F204

Fuse

6.3A

6.3A

DC Power PWB

F205

Fuse

4.0A

4.0A

DC Power PWB

TS LM

Thermostat LM

Mechanical thermostat

Shuts down the heater lamp (HL_LM) circuit when the fusing section is overheated.

TS UM

Thermostat UM

Mechanical thermostat

Shuts down the heater lamp (HL_UM) circuit when the fusing section is overheated. 
(Center section)

TS US

Thermostat US

Mechanical thermostat

Shuts down the heater lamp (HL_US) circuit when the fusing section is overheated. 
(Edge section)

43

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43?53

MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 1

MX-3114N

Service Manual

 

Each adjustment item in the adjustment item list is associated with
a specific 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. Per-
form only the necessary adjustments according to the need.

Unnecessary adjustments can be omitted. Even in this case, how-
ever, 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 trouble may occur.

ADJ 1

Adjust the developing unit

1A

Adjust the developing doctor gap

1B

Adjust the developing roller main pole position

1C

Toner density control reference value setting

25-2

ADJ 2

Adjusting high voltage values

2A

Adjust the main charger grid voltage

8-2

2B

Adjust the developing bias voltage

8-1

2C

Transfer current and voltage adjustment

8-6

ADJ 3

Image density sensor 
adjustment

3A

Image density sensor adjustment

44-2

ADJ 4

Image lead edge position, image 
loss, void area, image off-center, 
image magnification ratio 
adjustment 
(Automatic adjustment)

4A

Print image main scanning direction automatic magnification ratio adjustment (Print engine)

50-28

4B

Print image off-center automatic adjustment (Print engine) (Each paper feed tray)

50-28

4C

Copy mode image lead edge position, image loss, void area, image off-center, sub scanning 
direction image magnification ratio automatic adjustment (Scanner) 
(Document table mode)

50-28

4D

Copy mode image lead edge position, image loss, void area, image off-center, sub scanning 
direction image magnification ratio automatic adjustment (Scanner) (RSPF mode)

50-28

ADJ 5

Print engine image distortion 
adjustment / OPC drum phase 
adjustment / Color registration 
adjustment (Print engine 
section)

5A

Print engine image distortion adjustment (Manual adjustment) / OPC drum phase adjustment 
(Automatic adjustment) / Color registration adjustment (Automatic adjustment)

50-22

5B

Print engine image skew (LSU skew) adjustment (Manual adjustment) 
(No need to adjust normally)

50-20 (64-1)

5C

Color registration offset adjustment (No need to adjust normally)

50-20

ADJ 6

Scan image distortion 
adjustment 
(Document table mode)

6A

Scanner (reading) unit parallelism adjustment

6B

Scan image (sub scanning direction) distortion adjustment

6C

Scan image (main scanning direction) distortion adjustment

ADJ 7

Scanner image skew adjustment (RSPF mode)

64-2

ADJ 8

Scan image focus adjustment

48-1

ADJ 9

Print lead edge image position adjustment (Printer mode)

50-5

ADJ 10/

SET1

Color balance and density 
adjustment

Note before execution of the 
image quality adjustment

Copy image quality check

Printer image quality check

10A

Scanner calibration (CCD 
calibration)

63-3 (63-5)

SET 

1

Color balance adjustment target 
setup

1A

Copy color balance adjustment target setup

63-7/8/11

1B

Printer color balance adjustment target setup

67-26/27/28

10B

Copy/Printer color balance and 
density adjustment (Automatic 
adjustment) 
(Basic adjustment)

46-74

10C

Copy image quality adjustment 
(Basic adjustment)

10C 

(1)

Copy color balance and density adjustment 
(Automatic adjustment)

46-24

10C 

(2)

Copy color balance and density adjustment 
(Manual adjustment)

46-21

10D

Copy / Image send / FAX image 
quality adjustment (Individual 
adjustment)

10D 

(1)

Color copy density adjustment (for each color copy 
mode) (separately for the low-density area and the 
high-density area) 
(No need to adjust normally)

46-1

10D 

(2)

Monochrome copy density adjustment (for each 
monochrome copy mode) (separately for the low-
density area and the high-density area) 
(No need to adjust normally)

46-2

10D 

(3)

Color copy color balance, gamma adjustment 
(for each color copy mode) 
(No need to adjust normally)

46-10

10D 

(4)

Monochrome copy density, gamma adjustment (for 
each monochrome copy mode) 
(No need to adjust normally)

46-16

MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 2

ADJ 10/
SET1

Color balance and density 
adjustment

10D

Copy / Image send / FAX image 
quality adjustment (Individual 
adjustment)

10D 

(5)

Automatic monochrome (Copy/Scan/FAX) mode 
document density scanning operation (exposure 
operation) conditions setting 
(Normally no need to set)

46-19

10D 

(6)

Document low density image density reproduction 
adjustment in the automatic monochrome (Copy/
Scan/FAX) mode (No need to adjust normally) 
(Background density adjustment in the scanning 
section)

46-32

10D 

(7)

Copy/Scan low density image density adjustment 
(for each mode) (No need to adjust normally)

46-63

10D 

(8)

Color copy, text, line image reproduction 
adjustment (edge gamma, density adjustment) 
(Text, Map mode) (No need to adjust normally)

46-27

10D 

(9)

Monochrome (Copy/Scan/FAX) mode color 
document reproduction adjustment  (No need to 
adjust normally)

46-37

10D 
(10)

Color copy mode dark area gradation (black 
component quantity) adjustment  (No need to 
adjust normally)

46-38

10D 

(11)

Color (Copy/Scan) mode sharpness adjustment 
(No need to adjust normally)

46-60

10D 
(12)

Copy high density image density reproduction 
setting
(Normally unnecessary to the setting change)

46-23

10D 
(13)

Copy color balance adjustment (Single color copy 
mode) (No need to adjust normally)

46-25

10D 
(14)

RSPF mode (Copy/Scan/FAX) density adjustment 
(No need to adjust normally

46-9

10D 
(15)

Automatic color balance adjustment by the user 
(Copy color balance automatic adjustment 
ENABLE setting and adjustment)

26-53

10D 
(16)

Copy gamma, color balance adjustment for each 
dither (Automatic adjustment)

46-54

10E

Printer image quality adjustment 
(Basic adjustment)

10E 

(1)

Printer color balance adjustment 
(Automatic adjustment)

67-24

10E 

(2)

Printer color balance adjustment 
(Manual adjustment)

67-25

10F

Printer image quality adjustment 
(Individual adjustment)

10F 

(1)

Printer density adjustment (Low density section 
density adjustment) (No need to adjust normally)

67-36

10F 

(2)

Printer high density image density reproduction 
setting (Supporting the high density section tone 
gap) (No need to adjust normally)

67-34

10F 

(3)

Printer gamma adjustment for each dither 
(Automatic adjustment) (No need to adjust 
normally) (Except for GDI printers)

67-54

10F 

(4)

Automatic color balance adjustment by the 
user(Printer color balance automatic adjustment
ENABLE setting and adjustment)
(Normally unnecessary to the setting change)

26-53

ADJ 11

Paper size sensor adjustment

11A

Manual paper feed tray paper size (width) sensor adjustment

40-2

11B

RSPF paper feed tray document size (width) sensor adjustment

53-6

ADJ 12

Document size detection 
adjustment

12A

Document size sensor detection point adjustment

41-1

12B

Adjust the sensitivity of the original size sensor

41-2

ADJ 13

Touch panel coordinate setting

65-1

ADJ 14

Fusing paper guide position adjustment

ADJ 15

Print image position, image 
magnification ratio, void area, 
off-center adjustment (Print 
engine) (Manual adjustment)

15A

Print image magnification ratio adjustment (main scanning direction) (Print engine) 
(Manual adjustment)

50-10

15B

Print image print area adjustment (Print engine) (Manual adjustment)

50-10/50/1

15C

Print image off-center adjustment (Print engine) (Manual adjustment)

50-10

ADJ 16

Scan image magnification ratio 
adjustment (Manual adjustment)

16A

Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment) 
(Document table mode)

48-1

16B

Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment) 
(Document table mode)

48-1/48-5

16C

Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment) 
(RSPF mode)

48-1

16D

Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment) 
(RSPF mode)

48-1

ADJ 17

Scan image off-center 
adjustment (Manual adjustment)

17A

Scan image off-center adjustment (Manual adjustment) (Document table mode)

50-12

17B

Scan image off-center adjustment (Manual adjustment) (RSPF mode)

50-12/50-6

ADJ 18

Copy image position, image loss 
adjustment (Manual adjustment)

18A

Copy image position, image loss, void area adjustment (Manual adjustment) 
(Document table mode)

50-1

18B

Image scanning position adjustment (Manual adjustment) (RSPF mode)

53-8

18C

Copy image position, image loss, void area adjustment (Manual adjustment) (RSPF mode)

50-6

ADJ 19

Finisher and punch unit adjustments (alignment, punch hole position, staple position)

3-10

MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 3

 

 

This adjustment must be performed in the following cases:

* The developing unit has been disassembled.

* When the print image density is low.

* When there is a blur on the print image.

* When there is unevenness in the print image density.

* The toner is excessively dispersed.

Be careful not to attach a fingerprint, oil, grease, or a foreign mate-
rial on the DV roller during the procedure. Also be careful not to
scratch the DV roller surface.

If a fingerprint, oil, grease, or a foreign material is erroneously
attached to the DV roller during the procedure, remove all devel-
oper from the developing unit and clean the roller with alcohol.

Do not exert force when holding the DV Unit.

1)

Remove the developing unit from the main unit, and remove
the developing doctor cover.

2)

Loosen the developing doctor fixing screw.

3)

Insert a thickness gauge of 0.65mm in between 40mm - 70mm
from the edge of the developing doctor.

Note for use of a thickness gauge
 Do not insert the gauge diagonally.
 The gauge must pass freely.
 The advisable point of measurement is the MIN point of the 

DV roller oscillation.

4)

Push the developing doctor in the arrow direction, and tighten
the fixing screw of the developing doctor. (Perform the similar
procedure for the front frame and the rear frame.)

5)

Check that the doctor gaps at two positions in 40mm - 70mm
from the both sides of the developing doctor are in the range of
0.65 

 0.05mm.

 

This adjustment must be performed in the following cases:

* The developing unit has been disassembled.

* When the print image density is low.

* When there is a blur on the print image.

* When there is unevenness in the print image density.

* The toner is excessively dispersed.

Be careful not to leave a fingerprint, oil, grease, or a foreign mate-
rial on the DV roller during the procedure. Also be careful not to
scratch the DV roller surface.

If a fingerprint, oil, grease, or a foreign material is erroneously
attached to the DV roller during the procedure, remove all devel-
oper from the developing unit and clean the roller with alcohol.

Do not exert force when holding the DV Unit.

1)

Remove the developing doctor cover, and place the develop-
ing unit on a flat surface.

2)

Attach a piece of string to a sewing needle or pin.

3)

Hold the thread and bring the needle near the developing
roller. (Do not use a paper clip because too heavy. It will not
provide a correct position.)

40mm

70mm

40mm

70mm

40mm

70mm

40mm

70mm