Konica Minolta CA-100PLUS, Instruction Manual

Page: 54 / 125

52
1
. Press the MODE key to select xyLv measurement mode.
2
. Press the MEMORY CH and keys until the memory
channel where you want to perform white calibration ap-
pears.
3
. Place the measuring probe with the display.
Make sure that the white color whose values are known is shown on the
display.
4
. While the probe is placed with the display, press the HOLD
key.
The latest measured values will be hold and the HOLD LED lights up.
5
. Press the key.
The LCD display section will switch to the user calibration input screen.
6
. Press the key.
The LCD display section will switch to the W calibration value input screen.
7
. Enter calibration values (x, y, Lv).
For x and y, a value 10000 times the calibration value must be entered.
Use the ten-key (
to , ) to enter the values.
The cursor moves to the right each time a value is entered.
Each time the
key is pressed, the cursor moves in the order x → y → Lv → x.
In this example, x=0.3300, y=0.3000 and Lv=39.50 are entered.
1
Press the , , and then key to enter the “x” value.
2 Press the key.
The cursor (_) will move to “y”.
3 Press the , , and then key to enter the “y” value.
4
Press the key.
The cursor (_) will move to “Lv”.
5
Press the , , , and then key to enter the “Lv” value.
8
. Press the key.
The LCD display section will return to the user calibration input screen, with
the “*” mark displayed indicating that values have been entered for “W”.
9
. Press the key.
White calibration will start, and the entered values will be set as the target
color when the correction factor is entered.
10
. Press the HOLD key to start measurement.
* To cancel white calibration, press the key before pressing the
key at step 9.
* To view the white-calibrated values (target color values), press
the MR key. However, if the target color is set after white cali-
bration is performed with the same memory channel, the values
for that target color will be displayed. (For details, refer to page
72.)
* If measurement is performed with non-user-calibrated memory
channel for the first time since shipment from the factory, the Konica Minolta’s calibration standard will be used for the measurement.
* To change the target color you set, change it as explained in “1. Setting/Changing the Target Color by Measurement” (page 62). The
currently set correction factor for white calibration will remain unchanged even if the target color is changed.
* White calibration can still be performed even if the measured values are not hold (i.e. even if the HOLD key is not pressed). In this case,
white calibration will be performed for the measured values set by pressing the key at step 9.
CH01 U-CAL
P1 W R G B
CH01 x y Lv P1
0000 0000 0.00
_
CH01 x y Lv P1
3300 0000 0.00
_
CH01 x y Lv P1
3300 3000 0.00
_
CH01 x y Lv P1
3300 3000 39.50
_
CH01 x y Lv P1
3300 3000 39.50
_
“
*
” mark is displayed.
CH01 EXT Aa P1
[ ]
x
y
Lv
∆ x
∆ y
∆ Lv
LCD display section:
Memory channel
Measurement speed
Calibration mode
Probe no.
ID name
Screen example after white
calibration
Digital display section:
Displays calibration
values. Analog display section:
Displays the center
dots only.
“a” is displayed after
white calibration.
CH01 EXT Ad P1
[ ]