Adjusting The Image Quality In Scan Mode; Adjust The Scan Mode Image Density For All Modes At Once; Scan Mode Image Density Adjustment/Individual Setup (Super Fine Mode) - Sharp MX-M550U Service Manual

ADJ 11
Adjusting the image quality in
scan 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.
(Scan mode image quality adjustment items)
Image mode
Scan mode image Auto
density mode
adjustment/
Manual
individual setup
(standard mode)
Scan mode image Auto
density mode
adjustment/
individual setup
Manual
(small-character
mode)
Scan mode image Auto
density mode
adjustment/
individual setup
Manual
(fine mode)
Scan mode image Auto
density mode
adjustment/
individual setup
Manual
(super fine mode)
(Scan mode image quality)
The image density settings should be normally left at defaults but
should be adjusted according to user requests, if any.
11-A Adjust the scan mode image density for all
modes at once
1) Set the test chart (UKOG-0162FCZZ) on the original table so
that it aligns with the front frame. Then put four or five pieces of
A3 (11" x 17") paper.
Simulation for
adjustment
All-mode
adjustment
adjustment
Binary mode 46-21
Binary mode
Binary mode
Half tone
mode
Binary mode
Half tone
mode
Binary mode
Half tone
mode
Binary mode
Half tone
mode
Binary mode
Half tone
mode
Binary mode
Half tone
mode
MX-M700N ADJUSTMENTS 6 – 36
2) Go through the modes specified in Simulation 46-21.
SIMULATION 46-21
EXP.LEVEL SETUP SCANNER(AUTO SET), PRESS START.
0.SCANNER EXP.LEVEL
Press [START] key.
SIMULATION 46-21
EXP.LEVEL SETUP SCANNER(AUTO SET), INPUT VALUE 0-99,
AND PRESS START.
0.SCANNER EXP.LEVEL
0 SCANNER EXP.
Individual
LEVEL
mode
3) Select the adjustment item SCANNER EXP. LEVEL using the
46-22
numeric keypad.
4) Press the Start key.
5) Enter the image density adjustment value.
6) Press the P or Start key.
46-23
NOTE: Adjusting the scanned image density through this simula-
tion changes the image density settings for all scan modes
to the image density level applied by carrying out this simu-
lation.
The scan-mode image density settings for individual scan modes
46-24 adjusted through Simulations 46-22, -23, -24, -25, and -45 are
changed to the image density level applied by this simulation.
Scanned images must be visually checked to ensure the post-
adjustment image density.
11-B Scan mode image density adjustment/
46-25
individual setup (standard mode)
11-C Scan mode image density adjustment/
individual setup (small-character mode)
11-D Scan mode image density adjustment/
individual setup (fine mode)
11-E Scan mode image density adjustment/
individual setup (super fine mode)
This adjustment is intended to the image mode for each scan mode
individually. In manual mode, the image density setting for each
scanned image density adjustment level (1 to 5) can be adjusted to
a custom density level.
1) Set the test chart (UKOG-0162FCZZ) on the original table so
that it aligns with the front frame. Then put four or five pieces of
A3 (11" x 17") paper.
50
Press [START] key, or press
[SYSTEM SETTINGS] key.
Item
Scan mode image
density adjustment
0
50
Setting
Default
range
0 – 99 50