Adjust The Image Gamma In Scanner Mode; Scan, And Fax Modes - Sharp AR-M550N Service Manual

: Feb. 9 2004
1
ADJ 11F 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 64 2.OC_SFine.HT
4.SPF_Fine.HT 64 5.SPF_SFine.HT
7.CIS_Fine.HT 64 8.CIS_SFine.HT
1 OC_Fine.HT Fine text (Half-tone) (OC)
2 OC_SFine.HT Super fine (Half-tone) (OC)
3 OC_UFine.HT Ultra fine (Half-tone) (OC)
4 SPF_Fine.HT Fine text (Half-tone) (SPF)
5 SPF_SFine.HT Super fine (Half-tone) (SPF)
6 SPF_UFine.HT Ultra fine (Half-tone) (SPF)
7 CIS_Fine.HT Fine text (Half-tone) (CIS)
8 CIS_SFine.HT Super fine (Half-tone) (CIS)
9 CIS_UFine.HT Ultra fine (Half-tone) (CIS)
2) Using the numeric keypad, select the number that corresponds to
the scan mode for which to make adjustments.
4) Press the Start key
5) Adjust the gamma by entering an appropriate value through the
numeric keypad.
A larger value provides larger gamma gradient and higher image
contrast.
6) Press the Start key
This applies the adjustment value.
Scanned images must be visually checked to ensure the post-adjust-
ment image gamma.
ADJ 12 Common image quality
adjustments for all of copy, scan,
and fax modes
(Common image quality adjustment items for all of copy, scan,
and fax modes)
Adjustment items
Original table mode/SPF mode image
density correction
(Auto mode operation spec setting for
copy, scan, and fax)
ADJ 12A Correct the image density in original
1
table mode/SPF mode (Copy mode)
Used to adjust the copy density correction in the SPF copy mode for
1
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.
64 3.OC_UFine.HT 64
64 6.SPF_UFine.HT 64
64 9.CIS_UFine.HT 64
Item
Simulation for adjustment
46-20
46-19
AR-M550/M620/M700 SETTING AND ADJUSTMENTS 7 - 38
• The CIS unit has been replaced.
• The SPF unit has been removed.
• The SPF unit has been replaced.
1) Go through the modes specified in Simulation 46-20.
SIMULATION 46-20
OC/SPF EXP. ADJUSTMENT. SELECT 1-4, AND PRESS START.
0.TRAY SELECT 1
2.EXP LEVEL 1
3.SPF(FRONT) 128
4.SPF(REAR) 128
5.DSPF 128
Select other than 0 - 2, and press [START] key.
SIMULATION 46-20
OC/SPF EXP. ADJUSTMENT. INPUT VALUE 0-255, AND PRESS
START.
1.SPF(FRONT)
Press [START] key.
Select 1,
and press
[START] key.
SIMULATION 46-20
OC/SPF EXP. ADJUSTMENT.
Select 0, and
press [START] key.
SIMULATION 46-20
OC/SPF EXP. ADJUSTMENT. SELECT 1-6, AND PRESS START.
(FEED TRAY)
2.TRAY1 2.TRAY2
5.BPT 6.LCC
Select 2, and
press [START] key.
SIMULATION 46-20
OC/SPF EXP. ADJUSTMENT. SELECT 3-8, AND PRESS START.
(EXP. LEVEL SELECT)
3.1.0 4.1.5
6.2.5 7.3.0
9.4.0 10.4.5
Item
1
0 TRAY SELECT Paper feed tray selection
1: TRAY1
2: TRAY2
3: TRAY3
4: TRAY4
5: Manual feed
6: Side LCC
1 PRINT START Print start (Default)
2 EXP LEVEL Exposure level selection
3: Exposure level 1.0
4: Exposure level 1.5
5: Exposure level 2.0
6: Exposure level 2.5
7: Exposure level 3.0
8: Exposure level 3.5
9: Exposure level 4.0
10: Exposure level 4.5
11: Exposure level 5.0
3 SPF (FRONT) SPF (front) (front frame side) 0 - 255
4 SPF (REAR) SPF (front) (rear frame side)
5 DSPF DSPF (Back surface)
1.PRINT START
Press [CUSTOM SETTINGS] key.
128
Press [CUSTOM SETTINGS] key,
or terminate copying.
NOW PRINTING.
Press [START] key or
press [CUSTOM SETTINGS] key.
3.TRAY3 4.TRAY4
1
Press [START] key or
press [CUSTOM SETTINGS] key.
5.2.0
1
8.3.5
11.5.0
Set
Content
range
–
–
–
1
Default
–
–
–
128