Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man6) Service Manual ▷ View online
MX-4070V EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 23
8
WIRELESS LAN PWB
Connect the network by the wireless LAN
9
USB CN PWB
Connect WIRELESS LAN PWB and SCN-MFP control PWB
10
USB I/F PWB
USB interface
11
RD I/F PWB
Detects each sensor in the right door unit
12
SCN-MFP control PWB
Controls image data (compression, decompression and filing) and controls the whole machine.
Converts print data into image data.
Converts print data into image data.
13
PCU PWB
Controls engine section
14
HL PWB
Drives the heater lamp
15
MC PWB
Generates the main charger voltage and the DV bias voltage
16
AC PWB
Noise filter for AC input power supply
17
HOME PWB
Outputs the key operation signal
18
KEY PWB
Power switch, Buzzer, sound, power ON/OFF condition display LED, error display LED (red)
19
LED PWB
Display indication state of MFP
20
LVDS PWB
Converts the display data signal to the LCD display signal from SCN-MFP control PWB and controls the touch panel
21
Motion sensor PWB
Detects the approach of human in energy saving mode.and send signal to SCN-MFP control PWB
22
DC POWER PWB
Generates DC voltage
23
BD PWB
Detects laser and outputs the synchronous signal
24
TC PWB
Generates the transfer voltage
25
LSU PWB
Controls the LSU and generates the video data. Controls laser diode and power
No.
Name
Function and Operation
MX-4070V EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 24
15. Fuses and thermostats
Signal name
Name
Type
Section
F1
Fuse
20A 250V
AC PWB (For 100V series)
F1
Fuse
10A 250V
AC PWB (For 200V series)
F2
Fuse
10A 250V
AC PWB (For 200V series)
F101
Fuse
12A 250V
DC Power PWB
F102
Fuse
2A 250V
DC Power PWB
F301
Fuse
5A 250V
DC Power PWB
F401
Fuse
3.15A 250V
DC Power PWB
F601
Fuse
6.3A 250V
DC Power PWB
F602
Fuse
6.3A 250V
DC Power PWB
F603
Fuse
6.3A 250V
DC Power PWB
F604
Fuse
6.3A 250V
DC Power PWB
F605
Fuse
6.3A 250V
DC Power PWB
Signal name
Name
Type
Function and Operation
TS LM
Thermostat
Mechanical thermostat
Shuts down the heater lamp (HL_LM) circuit when the fusing section is overheated
TS UM
Thermostat
Mechanical thermostat
Shuts down the heater lamp (HL_UM) circuit when the fusing section is overheated (center section)
TS US
Thermostat
Mechanical thermostat
Shuts down the heater lamp (HL_US) circuit when the fusing section is overheated (edge section)
TS LM
TS UM
TS US
DC PWB
AC PWB
F2
F1
F101
F102
F301
F601
F401
F602
F603
F604
F605
MX-4070V ADJUSTMENTS AND SETTINGS 5 – 1
MX-4070V
Service Manual
[5] ADJUSTMENTS AND SETTINGS
1. General
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.
Perform only the necessary adjustments according to the need.
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.
Perform 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.
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.
2. Adjustment item list
Job No.
Adjustment item list
Simulation
ADJ 1
Developing unit adjustment
1-A
Toner density control reference value setting
25-2
ADJ 2
High voltage values adjustment
2-A
Main charger grid voltage adjustment
8-2
2-B
Developing bias voltage adjustment
8-1
2-C
Transfer current and voltage adjustment
8-6
ADJ 3
Image density sensor
adjustment
adjustment
3-A
Image density sensor adjustment
44-2
ADJ4
Print image position, image
magnification ratio adjustment
(Print engine) (Manual
adjustment)
magnification ratio adjustment
(Print engine) (Manual
adjustment)
4-A
Print image magnification ratio adjustment (main scanning direction) (Print engine) (Manual
adjustment)
adjustment)
50-10
4-B
Print image position (main scanning direction, sub scanning direction adjustment, (Print
engine) (Manual adjustment)
engine) (Manual adjustment)
50-10
ADJ5
Print engine image distortion
adjustment, OPC drum phase
adjustment, Color registration
adjustment (Print engine
section)
adjustment, OPC drum phase
adjustment, Color registration
adjustment (Print engine
section)
5-A
Print engine image distortion adjustment (Manual adjustment), OPC drum phase adjustment
(Automatic adjustment), Color registration adjustment (Automatic adjustment)
(Automatic adjustment), Color registration adjustment (Automatic adjustment)
50-22
5-B
Print engine image skew (LSU skew) adjustment (Manual adjustment) (No need to adjust
normally)
normally)
50-20
(64-1)
5-C
Color registration offset adjustment (No need to adjust normally)
50-20
ADJ6
Scan image distortion
adjustment (Document table
mode)
adjustment (Document table
mode)
6-A
Scanner (reading) unit parallelism adjustment (sub scanning direction distortion adjustment)
6-B
Scan image (main scanning direction) distortion adjustment
ADJ7
Scanner image skew
adjustment (DSPF/RSPF
mode)
adjustment (DSPF/RSPF
mode)
7-A
RSPF scan image skew adjustment
7-B
DSPF parallelism adjustment
7-C
DSPF skew adjustment (front surface mode)
7-D
DSPF skew adjustment (back surface mode)
ADJ8
Scan image focus adjustment
8-A
Image focus adjustment (document table mode, DSPF/RSPF front surface mode)
48-1
8-B
Image focus adjustment (DSPF back surface mode)
ADJ9
Scan image magnification ratio
adjustment (Manual
adjustment)
adjustment (Manual
adjustment)
9-A
Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
48-1
9-B
Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
(Document table mode)
(Document table mode)
48-1
9-C
Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
(DSPF/RSPF mode)
(DSPF/RSPF mode)
48-1
9-D
Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment)
(DSPF/RSPF mode)
(DSPF/RSPF mode)
48-1
ADJ10
Scan image off-center
adjustment (Manual
adjustment)
adjustment (Manual
adjustment)
10-A
Scan image off-center adjustment (Manual adjustment) (Document table mode)
50-12
10-B
Scan image off-center adjustment (Manual adjustment) (DSPF/RSPF mode)
50-12/50-6
ADJ11
Copy image position, image
loss adjustment (Manual
adjustment)
loss adjustment (Manual
adjustment)
11-A
Copy image position, image loss (Manual adjustment) (Document table mode)
50-1
11-B
Image scanning position adjustment (Manual adjustment) (DSPF/RSPF mode)
53-8
11-C
Copy image position, image loss (Manual adjustment) (DSPF/RSPF mode)
50-6
ADJ12
Print lead edge image position adjustment (printer mode)
50-5
ADJ13
FR density variation correction
13-A
FR density unevenness automatic correction
61-11
13-B
FR density unevenness visual inspection correction
61-12
ADJ14/
SET1
Color balance and density
adjustment
adjustment
Note before execution of the image quality adjustment
Copy image quality check
Printer image quality check
Copy image quality check
Printer image quality check
14-A
Scanner calibration
14-A
(1)
Scanner calibration (CCD calibration) (document table
mode)
mode)
63-3
14-A
(2)
Shading adjustment (DSPF mode)
63-2
14-A
(3)
Scanner calibration (CCD calibration) (DSPF mode)
63-3
SET
1
Color balance
adjustment target setup
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
14-B
Copy, printer color balance and density adjustment (Automatic adjustment) (Basic
adjustment)
adjustment)
46-74
MX-4070V ADJUSTMENTS AND SETTINGS 5 – 2
ADJ14/
SET1
Color balance and density
adjustment
adjustment
14-C
Copy image quality
adjustment (Basic
adjustment)
adjustment (Basic
adjustment)
14-C
(1)
Copy color balance and density adjustment (Automatic
adjustment)
adjustment)
46-24
14-C
(2)
Copy color balance and density adjustment (Manual
adjustment)
adjustment)
46-21
14-D
Copy, Image send, FAX
image quality adjustment
(Individual adjustment)
image quality adjustment
(Individual adjustment)
14-D
(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)
mode) (separately for the low density area and the high
density area) (No need to adjust normally)
46-1
14-D
(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)
monochrome copy mode) (separately for the low density
area and the high density area) (No need to adjust
normally)
46-2
14-D
(3)
Color copy color balance, gamma adjustment (for each
color copy mode) (No need to adjust normally)
color copy mode) (No need to adjust normally)
46-10
14-D
(4)
Monochrome copy density, gamma adjustment (for each
monochrome copy mode) (No need to adjust normally)
monochrome copy mode) (No need to adjust normally)
46-16
14-D
(5)
Automatic monochrome (Copy/scan/FAX) mode
document density scanning operation (exposure
operation) conditions setting (No need to set normally)
document density scanning operation (exposure
operation) conditions setting (No need to set normally)
46-19
14-D
(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)
adjustment in the automatic monochrome (copy/scan/
FAX) mode (No need to adjust normally) (Background
density adjustment in the scanning section)
46-32
14-D
(7)
Copy, scan low density image density adjustment (for
each mode) (No need to adjust normally)
each mode) (No need to adjust normally)
46-63
14-D
(8)
Color copy, text, line image reproduction adjustment
(edge gamma, density adjustment) (Text, Map mode)
(No need to adjust normally)
(edge gamma, density adjustment) (Text, Map mode)
(No need to adjust normally)
46-27
14-D
(9)
Monochrome (Copy/scan/FAX) mode color document
reproduction adjustment (No need to adjust normally)
reproduction adjustment (No need to adjust normally)
46-37
14-D
(10)
Color copy mode dark area gradation (black component
quantity) adjustment (No need to adjust normally)
quantity) adjustment (No need to adjust normally)
46-38
14-D
(11)
Color (copy/scan) mode sharpness adjustment (No
need to adjust normally)
need to adjust normally)
46-60
14-D
(12)
Copy high density image density reproduction setting
(Normally unnecessary to the setting change)
(Normally unnecessary to the setting change)
46-23
14-D
(13)
Copy color balance adjustment (single color copy mode)
(No need to adjust normally)
(No need to adjust normally)
46-25
14-D
(14)
DSPF/RSPF mode (copy/scan/FAX) density adjustment
(No need to adjust normally)
(No need to adjust normally)
46-9
14-D
(15)
Copy gamma, color balance adjustment for each dither
(Automatic adjustment)
(Automatic adjustment)
46-54
14-D
(16)
Dropout color adjustment (Normally not required)
46-55
14-D
(17)
Watermark adjustment (Normally not required)
46-66
14-E
Printer image quality
adjustment (Basic
adjustment)
adjustment (Basic
adjustment)
14-E
(1)
Printer color balance adjustment (Automatic adjustment)
67-24
14-E
(2)
Printer color balance adjustment (Manual adjustment)
67-25
14-F
Printer image quality
adjustment (Individual
adjustment)
adjustment (Individual
adjustment)
14-F
(1)
Printer density adjustment (low density section density
adjustment) (No need to adjust normally)
adjustment) (No need to adjust normally)
67-36
14-F
(2)
Printer high density image density reproduction setting
(supporting the high density section tone gap) (No need
to adjust normally)
(supporting the high density section tone gap) (No need
to adjust normally)
67-34
14-F
(3)
Printer gamma adjustment for each dither (Automatic
adjustment) (No need to adjust normally)
adjustment) (No need to adjust normally)
67-54
ADJ15
Paper size sensor adjustment
15-A
Manual paper feed tray paper size (width) sensor adjustment
40-2
15-B
DSPF/RSPF paper feed tray document size (width) sensor adjustment
53-6
ADJ16
Document size detection
adjustment
adjustment
16-A
Sensitivity adjustment of the original size sensor
41-2
ADJ17
Touch panel coordinate setting
65-1
ADJ18
Fusing paper guide position adjustment
Job No.
Adjustment item list
Simulation
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