Scan Area - Olivetti d-Color MF651 Service Manual

12. SERVICE MODE
12.4.10

Scan Area

• Use the following color chart for the adjustment of the scanner section.
• If the color chart is not available, a scale may be used instead.
Original Reference
Adjustment item
A: Image Position: Leading Edge
B: Image Position: Side Edge
C: Cross Direction Adjustment
D: Feed Direction Adjustment
470
COLOR CHART
1.0 4.0 2.5 2.2
4.5
2.8
2.0
1.1 3.2 Y M C
1.8
3.6
1.25
1.4
1.6
C M C Y Y M
Color is "hue",
lightness is "value", C
saturation is "chroma":
this is the world of color.
The quality of color which can be
Hue
A described by words such as red,
yellow, blue etc.
Value The quality of color which can be
described by words such as light,
dark etc., relating the color to a gray
of a similar lightness.
Chroma The quality of color which can be
described by words such as vivid,
dull etc., describing the extent to
which a color differs from a gray
having the same value.
1.0 4.0 2.5 2.2
4.5 2.8
2.0
1.1 3.2
Y M C
1.8
3.6
1.25 1.4
1.6
C M C Y Y M
P1
B
Ref.
P.471
P.472
P.473
P.474
Service Manual
Field Service Ver. 2.0 Jul. 2009
COLOR CHART
10 9 8 7 6 5 4 3 2 1
MODEL :
MACHINE S/N :
DATE : / / °C %RH
COUNTER :
COPY DENSITY :
COLOR BALANCE Y :
M :
C :
BK :
D
OTHERS :
CHART NO. : CTC-008-01
PART NO. : 4036-7940-01
P1 Printed In Japan
A0P0F3C506DA
Y110571-1