Read Sharp MX-M364N / MX-565N (serv.man4) Service Manual online
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 1
MX-M503N
Service Manual
[4] 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.
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
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
2D
Transfer separation bias voltage adjustment
8-17
ADJ 3
Print engine image skew,
image position, image
magnification ratio, void area
adjustments
(Manual adjustments)
image position, image
magnification ratio, void area
adjustments
(Manual adjustments)
3A
Print engine image skew adjustment (LSU parallelism adjustment)
64-2
3B
Print engine image magnification ratio adjustment (Main scanning direction)
50-10
3C
Print engine print area (void area) adjustment
50-10/50-1
3D
Print engine image off-center adjustment
50-10
ADJ 4
Scan image distortion
adjustment (OC mode)
adjustment (OC mode)
4A
Scanner (reading) unit parallelism adjustment
4B
Scan image sub scanning direction distortion adjustment
4C
Scan image main scanning direction distortion adjustment
4D
Scan image distortion adjustment (Whole scanner unit)
ADJ 5
Scanner image skew
adjustment (DSPF/RSPF
mode)
adjustment (DSPF/RSPF
mode)
5A
DSPF/RSPF parallelism adjustment
5B
DSPF/RSPF skew adjustment (Front surface mode)
64-2
5C
DSPF skew adjustment (Back surface mode)
64-2
ADJ 6
Scan image focus adjustment
6A
Image focus adjustment (Document table mode/DSPF/RSPF front surface mode)
48-1
6B
Image focus adjustment (DSPF back surface mode)
ADJ 7
Scan image magnification
ratio adjustment (Manual
adjustment)
ratio adjustment (Manual
adjustment)
7A
Main scanning direction image magnification ratio adjustment (Document table mode)
48-1
7B
Sub scanning direction image magnification ratio adjustment (Document table mode)
48-1/48-5
7C
Main scanning direction image magnification ratio adjustment (DSPF/RSPF mode)
48-1
7D
Sub scanning direction image magnification ratio adjustment (DSPF/RSPF mode)
48-1
ADJ 8
Scan image off-center
adjustment (Manual
adjustment)
adjustment (Manual
adjustment)
8A
Scan image off-center adjustment (Document table mode)
50-12
8B
Scan image off-center adjustment (DSPF/RSPF mode)
50-12/50-6
ADJ 9
Print lead edge image position, void area adjustment (Printer mode)
50-5
ADJ 10
Copy image position, image
loss, and void area
adjustment
(Manual adjustment)
loss, and void area
adjustment
(Manual adjustment)
10A
Copy image position, image loss, void area adjustment (Document table mode)
50-1
10B
Document scan position adjustment (DSPF mode scanner scan position adjustment)
53-8
10C
Copy mode image loss adjustment (DSPF/RSPF mode)
50-6
ADJ 11
Gray balance/density
adjustment
adjustment
Note before execution of the image quality adjustment
Copy image quality check
Printer image quality check
11A
Scanner
calibration
(CCD
calibration)
calibration
(CCD
calibration)
11A
(1)
(1)
CCD gamma adjustment (CCD calibration) (Document table mode)
63-3 (63-5)
11A
(2)
(2)
Shading adjustment (Calibration) (DSPF mode)
63-2
11A
(3)
(3)
CCD gamma adjustment (CCD calibration) (DSPF mode)
63-3
11B
Copy/Printer gray balance and density adjustment (Automatic adjustment) (Basic adjustmen)
46-74
11C
Copy quality
adjustment
(Basic
adjustment)
adjustment
(Basic
adjustment)
11C
(1)
(1)
Copy gray balance and density adjustment (Automatic adjust-
ment)
ment)
46-24
11C
(2)
(2)
Copy gray balance and density adjustment (Manual adjustment)
46-21
11D
Copy/Image
send/FAX
image quality
adjustment
(Individual
adjustment)
send/FAX
image quality
adjustment
(Individual
adjustment)
11D
(1)
(1)
Monochrome copy density adjustment (for each monochrome copy
mode) (separately for the low density area and high density area) )
(No need to adjust normally)
mode) (separately for the low density area and high density area) )
(No need to adjust normally)
46-2
11D
(2)
(2)
Copy gray balance, gamma adjustment
(No need to adjust normally)
(No need to adjust normally)
46-10
11D
(3)
(3)
Monochrome copy density, gamma adjustment (for each monochrome
copy mode)
copy mode)
46-16
11D
(4)
(4)
Automatic monochrome (Copy/Scan/FAX) mode document density
scanning operation (exposure operation) conditions setting
(Normally no need to set)
scanning operation (exposure operation) conditions setting
(Normally no need to set)
46-19
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