Xerox 1235DT - Phaser Color Solid Ink Printer Service Manual page 225

c gogo c gogo
c gogo c gogo
c gogo c gogo
c gogo c gogo
Test Pattern A 600 x 600
Test Pattern A 600 x 600
Abc Defg Hijk
Abc Defg Hijk Lmnop
Qrstuvw XYZ
123456789
Abc Defg Hijk Lmnop
Qrstuvw XYZ 123456789
c gogo
Color Balance and Density Adjustment Test Page
Repeat as needed
1. Adjust Black Density until "Current"=30% Black Halftone
BLACK/GRAYSCALE
-3K -2K -1K
Decrease
2. Adjust Color Density to match Black Density Squares from Step 1.
Cyan+Magenta+Yellow
-3CMY -2CMY -1CMY
Decrease
3. Adjust Color Balance to match "Current Circle" with Gray Reference.
4. Iterate between Step 2 and Step 3 as needed.
(30% Black Halftone)
7
12
1
6
Current
0
5
4
11
10
212
Phaser 1235 Network Color Printer
c gogo c gogo
c gogo c gogo
c gogo c gogo
c gogo c gogo
c gogo c gogo c gogo
c gogo c gogo c gogo
Current
+1K +2K
0
Increase
Current
+1CMY +2CMY +3CMY
0
Increase
Gray Reference
abcdef abcdef abcdef
8
abcdef abcdef abcdef
2
3
9
Interpreting Test Pattern A
This pattern consists of color blocks and
bars. Use this pattern to identify defects
such as deletions, banding, color
misregistration, side-to-side density
problems, and text problems.
Look for:
1.
Solid fills in the color blocks.
2.
Ensure the small text is legible and not
broken.
0728-17
Interpreting the Color Balance and
Density Adjustment Page.
You use this print to assess and adjust color
balance, color density and black density.
Use the 30% halftones to judge the current
+3K
level and decide on a preference.
Look for:
The Color Density and Black Density should
be at approximately the same level. This is
important in order to make the Color
Balance adjustment.
To determine the correct Color Balance
abcdef
compare the circle in the center of the Color
Balance object marked "CURRENT" with the
gray background. The background is
abcdef
produced using black only and the circles
are produced using a combination of cyan,
magenta, and yellow. The adjustment
objective is for the "CURRENT" circle to be
the closest gray of any of the circles when
compared to the gray background.
Refer to the adjustment "Adjusting color
density and balance" on page 77.
0728-18