Color Balance Adjustment - Toshiba e-STUDIO2820C Service Handbook

3.2.3

Color balance adjustment

The color balance is adjusted by adjusting the density of each color at the Full Color Mode. The adjust-
ment is performed by selecting its density area from the following: low density, medium density and high
density.
Color
Text/
Text
Photo
Yellow 1779-0 1780-0
1779-1 1780-1
1779-2 1780-2
Magenta 1784-0 1785-0
1784-1 1785-1
1784-2 1785-2
Cyan 1789-0 1790-0
1789-1 1790-1
1789-2 1790-2
Black 1794-0 1795-0
1794-1 1795-1
1794-2 1795-2
Make a test copy and compare the image obtained with the current settings; if necessary, make adjust-
ments according to the following procedure.
Notes:
• Be sure that this adjustment is made after performing
adjustment".
• Changing the adjustment setting influences the adjacent density area slightly.
E.g.: When the value of the medium density is larger, the adjacent areas in the low density
and high density range will become slightly darker.
<Procedure>
(1) While pressing [0] and [5] simultaneously, turn the power ON.
(2) Key in the code of the mode to be adjusted (color and original mode) and press the [START] but-
ton.
(3) Select the density area to be adjusted with digital keys (0, 1 or 2), and press the [START] button.
0: Low density
1: Medium density
2: High density
(4) Key in an adjustment value. (To correct the value once keyed in, press the [CLEAR] button.)
(5) Press the [ENTER] or [INTERRUPT] button to store the value in memory.
→ The equipment goes back to the ready state.
(6) For resetting the value, repeat step (2) to (5).
(7) Press the [FAX] button and then press the [START] button to make a test copy.
(8) If the desired image quality has not been attained, repeat step (2) to (7).
© 2008 TOSHIBA TEC CORPORATION All rights reserved
Original mode
Printed
Photo Map
Image
1781-0 1782-0 1783-0
1781-1 1782-1 1783-1
1781-2 1782-2 1783-2
1786-0 1787-0 1788-0
1786-1 1787-1 1788-1
1786-2 1787-2 1788-2
1791-0 1792-0 1793-0
1791-1 1792-1 1793-1
1791-2 1792-2 1793-2
1796-0 1797-0 1798-0
1796-1 1797-1 1798-1
1796-2 1797-2 1798-2
3 - 33
<Adjustment Mode (05)>
Item to be
user
adjusted
custom
7980-0 Low density
7980-1 Medium density
7980-2 High density
7981-0 Low density
7981-1 Medium density
7981-2 High density
7982-0 Low density
7982-1 Medium density
7982-2 High density
7983-0 Low density
7983-1 Medium density
7983-2 High density
P.3-30 "3.2.1 Automatic gamma
e-STUDIO2820C/2830C/3520C/3530C/4520C
Remarks
The larger the
value is, the
darker the color
to be adjusted
becomes.
Acceptable val-
ues:
0 to 255
(Default: 128)
ADJUSTMENT
3