TallyGenicom 8124, User Manual

Page: 275 / 306

7.8 Adjusting Gradation
275
7
Daily Control
3
Adjust the chart vertically so that the density on the chart matches that
of the area marked with [ ] in the color sample. When density on both
of the chart and color sample matches, get the difference between [ ]
on the chart and the [ ] mark on the color sample by reading the scale.
Pay attention to the minus (–) and plus (+) directions when reading the scale.
●
If the density of the color on color sample falls
between two colors of adjustment patch on gradation
adjustment chart, read the scale on the boundary (in
example shown at the right, –1).
●
If the difference exceeds the specified range (–6 to
+6), adjust gradation assuming that difference is –6
or +6, and then adjust the gradation again.
4
Write the difference in the appropriate
[Margin] box.
5
For the remaining two densities, read the differences in the same way.
6
Also, repeat steps 1 to 5 for the remaining colors of C, M, Y, and K to
read the difference.
C
CL
Margin
- Cyan
C
-2
Color sample
for halftone
reproduction
tuning
If the color sample’s
density is between
A and B.
–2
–1