Sharp MX-C301 / MX-C301W (serv.man5) Service Manual ▷ View online
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1
MX-C301 ADJUSTMENTS 5 – 1
MX-C301
Service Manual
[5] ADJUSTMENTS
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.
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.
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.
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.
not complete normally or trouble may occur.
2. Adjustment item list
Job No.
Adjustment item list
Simulation
ADJ 1
Adjusting high voltage values
1-A
Adjust the main charger grid voltage
8-2
1-B
Adjust the developing bias voltage
8-1
1-C
Transfer voltage adjustment
8-6
ADJ 2
Image density sensor (image
registration sensor) adjustment
registration sensor) adjustment
2-A
Color image density sensor (image registration sensor F), black image density sensor (image
registration sensor R) adjustment
registration sensor R) adjustment
44-2
ADJ 3
Image skew adjustment (LSU unit)
61-4
ADJ 4
Print image position, image
magnification ratio, void area,
off-center adjustment (Print
engine) (Manual adjustment)
magnification ratio, void area,
off-center adjustment (Print
engine) (Manual adjustment)
4A
Print image magnification ratio adjustment (main scanning direction) (Print engine)
(Manual adjustment)
(Manual adjustment)
50-10
4B
Print image print area adjustment (Print engine) (Manual adjustment)
50-10/50/1
4C
Print image off-center adjustment (Print engine) (Manual adjustment)
50-10
ADJ 5
Print engine image distortion
adjustment / OPC drum phase
adjustment / Color registration
adjustment (Print engine sec-
tion)
adjustment / OPC drum phase
adjustment / Color registration
adjustment (Print engine sec-
tion)
5A
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
5B
Print engine image skew (LSU skew) adjustment (Manual adjustment)
(No need to adjust normally)
(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 magnification ratio
adjustment (Manual adjustment)
adjustment (Manual adjustment)
6A
Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
(Document table mode)
(Document table mode)
48-1
6B
Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment)
(Document table mode)
(Document table mode)
48-1/48-5
6C
Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
(RSPF mode)
(RSPF mode)
48-1
6D
Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment)
(RSPF mode)
(RSPF mode)
48-1
ADJ 7
Scan image off-center adjust-
ment (Manual adjustment)
ment (Manual adjustment)
7A
Scan image off-center adjustment (Manual adjustment) (Document table mode)
50-12
7B
Scan image off-center adjustment (Manual adjustment) (RSPF mode)
50-12/50-6
ADJ 8
Copy image position, image loss
adjustment (Manual adjustment)
adjustment (Manual adjustment)
8A
Copy image position, image loss, void area adjustment (Manual adjustment)
(Document table mode)
(Document table mode)
50-1
8B
Copy image position, image loss, void area adjustment (Manual adjustment) (RSPF mode)
50-6
ADJ 9
Copy image position, image loss
adjustment (Manual adjustment)
adjustment (Manual adjustment)
9A
Copy image position, image loss, void area adjustment (Manual adjustment)
(Document table mode)
(Document table mode)
50-1
9B
Copy image position, image loss, void area adjustment (Manual adjustment) (RSPF mode)
50-6
ADJ 10/
SET1
Color balance and density
adjustment
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
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)
(Basic adjustment)
46-74
10C
Copy image quality adjustment
(Basic adjustment)
(Basic adjustment)
10C
(1)
Copy color balance and density adjustment (Auto-
matic adjustment)
matic adjustment)
46-24
10C
(2)
Copy color balance and density adjustment (Man-
ual adjustment)
ual adjustment)
46-21
10D
Copy / Image send / FAX image
quality adjustment (Individual
adjustment)
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)
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)
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)
(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)
each monochrome copy mode)
(No need to adjust normally)
46-16
10D
(5)
Automatic monochrome (Copy/Scan/FAX) mode
document density scanning operation (exposure
operation) conditions setting
(Normally no need to set)
document density scanning operation (exposure
operation) conditions setting
(Normally no need to set)
46-19
MX-C301 ADJUSTMENTS 5 – 2
ADJ 10/
SET1
Color balance and density
adjustment
adjustment
10D
Copy / Image send / FAX image
quality adjustment (Individual
adjustment)
quality adjustment (Individual
adjustment)
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)
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)
(for each mode) (No need to adjust normally)
46-63
10D
(8)
Color copy, text, line image reproduction adjust-
ment (edge gamma, density adjustment) (Text,
Map mode) (No need to adjust normally)
ment (edge gamma, density adjustment) (Text,
Map mode) (No need to adjust normally)
46-27
10D
(9)
Monochrome (Copy/Scan/FAX) mode color docu-
ment reproduction adjustment (No need to adjust
normally)
ment reproduction adjustment (No need to adjust
normally)
46-37
10D
(10)
(10)
Color copy mode dark area gradation (black com-
ponent quantity) adjustment (No need to adjust
normally)
ponent quantity) adjustment (No need to adjust
normally)
46-38
10D
(11)
Color (Copy/Scan) mode sharpness adjustment
(No need to adjust normally)
(No need to adjust normally)
46-60
10D
(12)
(12)
Copy high density image density reproduction
setting
(Normally unnecessary to the setting change)
setting
(Normally unnecessary to the setting change)
46-23
10D
(13)
(13)
Copy color balance adjustment (Single color copy
mode) (No need to adjust normally)
mode) (No need to adjust normally)
46-25
10D
(14)
(14)
RSPF mode (Copy/Scan/FAX) density adjustment
(No need to adjust normally
(No need to adjust normally
46-9
10D
(15)
(15)
Automatic color balance adjustment by the user
(Copy color balance automatic adjustment
ENABLE setting and adjustment)
(Copy color balance automatic adjustment
ENABLE setting and adjustment)
26-53
10D
(16)
(16)
Copy gamma, color balance adjustment for each
dither (Automatic adjustment)
dither (Automatic adjustment)
46-54
10E
Printer image quality adjust-
ment (Basic adjustment)
ment (Basic adjustment)
10E
(1)
Printer color balance adjustment
(Automatic adjustment)
(Automatic adjustment)
67-24
10E
(2)
Printer color balance adjustment
(Manual adjustment)
(Manual adjustment)
67-25
10F
Printer image quality adjustment
(Individual adjustment)
(Individual adjustment)
10F
(1)
Printer density adjustment (Low density section
density adjustment) (No need to adjust normally)
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)
setting (Supporting the high density section tone
gap) (No need to adjust normally)
67-34
10F
(3)
Printer gamma adjustment for each dither (Auto-
matic adjustment) (No need to adjust normally)
(Except for GDI printers)
matic 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)
user(Printer color balance automatic adjustment
ENABLE setting and adjustment)
(Normally unnecessary to the setting change)
26-53
ADJ 11
Touch panel coordinate setting
65-1
ADJ 12
Fusing paper guide position adjustment
Job No.
Adjustment item list
Simulation
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