HP Indigo W7200 Writing Head Service Instructions -- CA393-00150Document P/N: - Page 18

WritingHeadFocus.jlt, Writing Head

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It is recommended to adjust the skew value to less than 0.2 mm especially when printing duplex. 3. To adjust the skew value: a. Loosen the two skew locking screws. b. Turn the Skew adjustment knob to move the writing head slightly. Figure 3-1 Skew, leveling and focus adjustment knobs - input view 1 Allen M4 securing screw 2 Two skew locking screws 3 Leveling adjustment knob 4 Skew adjustment knob Color adjust Do the following to verify and adjust the color. 1. Print the WritingHeadFocus.jlt job. 2. From press computer, run the following application: C:\Unicorn\Release\mmi_writingHeadD.exe. The Writing Head window opens. 3. Click the Laser Power tab. Enter the Black Level value and select Override. NOTE: The Laser Power value shown on the screen will only change to your new value after printing. Color adjust 15

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It is recommended to adjust the skew value to less than 0.2 mm especially when printing duplex.
3.
To adjust the skew value:
a.
Loosen the two skew locking screws.
b.
Turn the
Skew
adjustment knob to move the writing head slightly.
Figure 3-1
Skew, leveling and focus adjustment knobs – input view
1
Allen M4 securing screw
3
Leveling adjustment knob
2
Two skew locking screws
4
Skew adjustment knob
Color adjust
Do the following to verify and adjust the color.
1.
Print the
WritingHeadFocus.jlt
job.
2.
From press computer, run the following application:
C:\Unicorn\Release\mmi_writingHeadD.exe
.
The
Writing Head
window opens.
3.
Click the
Laser Power
tab. Enter the
Black Level
value and select
Override
.
NOTE:
The
Laser Power
value shown on the screen will only change to your new value after printing.
Color adjust
15