11.10 Gradation Adjustment - Oce cm4521 User Manual

11

11.10 Gradation Adjustment

The gradation levels can be adjusted if there are changes in the color
gradations of the print image.
The following color gradation adjustments can be performed.
- Copy:
The adjustment is made with stress on increasing the number of images
stored in the memory.
- Printer (Gradation): The adjustment is made with stress on the gradations
in images.
- Printer (Resolution): The adjustment is made with stress on the
reproducibility of text and lines.
The procedure for adjusting the gradation levels of the copy is described
below.
0 Before performing the gradation adjustment, be sure to restart the
machine.
0 After replacing an imaging unit, be sure to adjust the gradation levels.
0 When the machine is turned off, then on again with the main power
switch, wait at least 10 seconds to turn the machine on after turning it off.
The machine may not operate correctly if it is turned on immediately after
being turned off.
0 The test pattern is printed on plain paper from a paper tray loaded with
one of the following sizes (listed in order of priority): A3 w, 11 × 17 w,
A4 v or 8-1/2 × 11 v. Paper in the bypass tray cannot be selected.
1
Display the Administrator Settings screen.
– For details on displaying the Administrator Settings screen, refer to
"Displaying the Administrator Settings screen" on page 11-51.
2
Touch [1 System Settings].
The System Settings screen appears.
3
Touch [7 Expert Adjustment].
The Expert Adjustment screen appears.
4
Touch [8 Gradation Adjustment].
The Gradation Adjustment screen appears.
5
Press the [Start] key.
– The gradation levels cannot be adjusted if an image stabilization
operation is not performed.
The image stabilization operation begins.
11-90
Utility mode
cm4521