Adjust The Image Gamma In Scanner Mode; Common Image Quality Adjustments For All Of Copy, Scan, And Fax Modes; Original Table Mode/Spf Mode Image Density Correction (Copy Mode) - Sharp MX-M550U Service Manual

2) Go through the simulation modes that correspond to the scan
modes for which to adjust the scanned image density (i.e., the
modes specified in Simulations 46-22, -23, -24, or -25).
SIMULATION 46-21
EXP.LEVEL SETUP SCANNER(AUTO SET), PRESS START.
0.SCANNER EXP.LEVEL 50
Press [START] key.
SIMULATION 46-21
EXP.LEVEL SETUP SCANNER(AUTO SET), INPUT VALUE 0-99,
AND PRESS START.
0.SCANNER EXP.LEVEL
Item
0 SCANNER EXP. Scan mode image
LEVEL density adjustment
SIMULATION 46-22
EXP.LEVEL SETUP SCANNER(NORMAL). SELECT 0-5, AND PRESS
START.
0.AUTO 50 1.1.0 50
3.3.0 50 4.4.0 50
Select 0 - 5, and press
[START] key.
SIMULATION 46-22
EXP.LEVEL SETUP SCANNER(NORMAL), INPUT VALUE 0-99, AND
PRESS START.
0.AUTO
Item
0 AUTO Auto
1 1.0 Exposure level 1
2 2.0 Exposure level 2
3 3.0 Exposure level 3
4 4.0 Exposure level 4
5 5.0 Exposure level 5
3) Enter the number that corresponds to the following adjustment
item using the numeric keypad. (Choose from numbers 0 to 5.)
* Auto mode
* Manual mode (print density adjustment level)
For manual mode, select the number that corresponds to the
image density adjustment level (1 to 5). (Choose from num-
bers 1 to 5.)
4) Press the Start key.
5) Enter the image density adjustment value.
6) Press the P or Start key.
Scanned images must be visually checked to ensure the post-
adjustment image density.
Press [START] key, or press
[SYSTEM SETTINGS] key.
50
Setting
range
0 – 99
2.2.0 50
5.5.0 50
Press [START] key, or press
[SYSTEM SETTINGS] key.
50
Setting
range
0 – 99
MX-M700N ADJUSTMENTS 6 – 37
11-F

Adjust the image gamma in scanner mode

1) Go through the modes specified in Simulation 46-27.
SIMULATION 46-27
GAMMA SETUP(SCNNER), SELECT 1-9, AND PRESS START.
1.OC_Fine.HT
0
4.SPF_Fine.HT
7.CIS_Fine.HT
1 OC_Fine.HT
2 OC_SFine.HT
3 OC_UFine.HT
4 SPF_Fine.HT
5 SPF_SFine.HT
6 SPF_UFine.HT
7 CIS_Fine.HT
8 CIS_SFine.HT
Default
9 CIS_UFine.HT
50
2) Using the numeric keypad, select the number that corresponds
to the scan mode for which to make adjustments.
3) Press the Start key.
4) Adjust the gamma by entering an appropriate value through
the numeric keypad.
A larger value provides larger gamma gradient and higher
1
image contrast.
5) Press the Start key.
This applies the adjustment value.
Scanned images must be visually checked to ensure the post-
adjustment image gamma.
ADJ 12
(Common image quality adjustment items for all of copy, scan,
and fax modes)
Default
Adjustment Item List
50
Correct the image density in original
table mode/SPF mode (Copy mode)
Set up the auto mode operation for
copy, scan, and fax
12-A Original table mode/SPF mode image
density correction (copy mode)
Used to adjust the copy density correction in the DSPF copy mode
for the document table copy mode. The adjustment is made so that
the copy density becomes the same as that of the document table
copy mode.
This adjustment is needed in the following situations:
* The CCD unit has been replaced.
* U2 trouble has occurred.
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
* One or more parts of the scanner (reading) section have been
replaced.
* The CIS unit has been removed.
* The CIS unit has been replaced.
* The DSPF unit has been removed.
* The DSPF unit has been replaced.
64 2.OC_SFine.HT 64 3.OC_UFine.HT
64 5.SPF_SFine.HT 64
64 8.CIS_SFine.HT 64 9.CIS_UFine.HT
Item
Fine text (Half-tone) (OC)
Super fine (Half-tone) (OC)
Ultra fine (Half-tone) (OC)
Fine text (Half-tone) (SPF)
Super fine (Half-tone) (SPF)
Ultra fine (Half-tone) (SPF)
Fine text (Half-tone) (CIS)
Super fine (Half-tone) (CIS)
Ultra fine (Half-tone) (CIS)
Common image quality
adjustments for all of copy,
scan, and fax modes
Simulation for adjustment
64
6.SPF_UFine.HT 64
64
46-20
46-19