Adjust The Copied Image Sharpness; Fax Mode Image Density Adjustment Items; Adj 10 Adjusting The Print Quality In Fax Mode - Sharp AR-M550N Service Manual

: Feb. 9 2004
1
3) Using the numeric keypad, select the number that corresponds to
the copy mode for which to make adjustments.
(Choose from numbers 3 to 14.)
4) Press the Start key
5) Enter the gamma adjustment value using the numeric keypad.
A larger value provides larger gamma gradient and higher image
contrast.
6) Press the P or Start key
Pressing the Start key starts copy (print) operation as well as
applying the adjustment value.
7) Check the copied image gamma (copy density levels for low and
high density areas) (contrast).
Repeat steps 5 to 7 until an acceptable copied image is obtained.
ADJ 9F

Adjust the copied image sharpness

1) Set the original on the original table.
2) Go through the modes specified in Simulation 46-31.
SIMULATION 46-31
SHARPNESS LEVEL SETUP. SELECT 1-12, AND PRESS START.
1.OC_AE 3 2.OC_CHARA
4.OC_PHOTO 3 5.SPF1_AE
7.SPF1_MIX 3 8.SPF1_PHOTO
10.SPF2_CHARA 3 11.SPF2_MIX
13.CIS_AE 3 14.CIS_CHARA
16.CIS_PHOTO 3
Press [START] key.
SIMULATION 46-31
SHARPNESS LEVEL SETUP. INPUT VALUE 0-3, AND PRESS
START.
1.OC_AE
Item
1 OC_AE AE mode (OC)
2 OC_CHARA Text mode (OC)
3 OC_MIX Text/Photo mode (OC)
4 OC_PHOTO Photo mode (OC)
5 SPF1_AE AE mode (SPF1)
6 SPF1_CHARA Text mode (SPF1)
7 SPF1_MIX Text/Photo mode (SPF1)
8 SPF1_PHOTO Photo mode (SPF1)
9 SPF2_AE AE mode (SPF2)
10 SPF2_CHARA Text mode (SPF2)
11 SPF2_MIX Text/Photo mode (SPF2)
12 SPF2_PHOTO Photo mode (SPF2)
13 CIS_AE AE mode (CIS)
1
14 CIS_CHARA Text mode (CIS)
15 CIS_MIX Text/Photo mode (CIS)
16 CIS_PHOTO Photo mode (CIS)
3) Using the numeric keypad, select the number that corresponds to
the copy mode for which to make adjustments.
(Choose from numbers 1 to 16.)
4) Press the Start key
5) Adjust the sharpness by entering an appropriate value through the
numeric keypad.
A larger value provides higher sharpness.
6) Press the P or Start key
Pressing the Start key starts copy (print) operation as well as
applying the adjustment value.
7) Check the copied image sharpness.
Repeat steps 5 to 7 until an acceptable copied image is obtained.
3 3.OC_MIX 3
3 6.SPF1_CHARA 3
3 9.SPF2_AE 3
3 12.SPF2_PHOTO 3
4 15.CIS_MIX 3
Press [CUSTOM SETTINGS] key.
Set
Default
range
1 - 5 3
1 - 5 4
3
1 - 5
AR-M550/M620/M700 SETTING AND ADJUSTMENTS 7 - 33
ADJ 10 Adjusting the print quality in fax
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.

(Fax mode image density adjustment items)

Image mode
Fax mode print Auto Binary mode
density mode
adjustment
Manual Binary mode
(standard
mode)
Fax mode print Auto Binary mode
density mode
Half tone
adjustment
mode
(small-
Manual Binary mode
character
Half tone
mode)
mode
Fax mode print Auto Binary mode
density mode
Half tone
adjustment (fine
mode
mode)
Manual Binary mode
Half tone
mode
Fax mode print Auto Binary mode
density mode
Half tone
adjustment
mode
(super fine
Manual Binary mode
mode)
Half tone
mode
Fax mode print Auto Binary mode
density mode
Half tone
adjustment
mode
(600dpi mode)
Manual Binary mode
Half tone
mode
(Fax mode density)
The print density settings should be normally left at defaults but should
be adjusted according to user requests, if any.
Simulation for
adjustment
Individual-
All-mode
mode
adjustment
adjustment
46-12 46-13
46-14
46-15
46-16
46-45