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Print Station Operator's Guide - Kodak

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Appendix A. Parameters Adjustment Screen Functions<br />

Stim Phase Adjustment<br />

Stim Phase<br />

Adjustment<br />

Note: The phase setting may require adjustment again when the print station<br />

reaches a maximum operating temperature.<br />

The operator can choose any of 16 phase settings during large<br />

environmental changes. Find and record the stim phase window with the<br />

following steps.<br />

1. From the CONTROL MENU screen, select function 8 Service<br />

Menu.<br />

2. Select function 9 Parameters Menu, and enter the password.<br />

3. Select function 4 Stim Phase.<br />

4. Select each of the 16 different phase settings. Record all phase<br />

settings that print test patterns of good quality.<br />

5. Examine the printed test patterns. Several adjacent settings should<br />

provide good print quality. These phase settings are the phase<br />

window.<br />

6. Find the center of the phase window, then set the phase one value<br />

above the center. This is the set point.<br />

7. <strong>Print</strong> test patterns at the expected job speed. Check the results for<br />

ghosting.<br />

Charge Voltage<br />

Adjustment<br />

Caution: Do not change the center point of the pressure by more than 1.5 psi (10.3<br />

kPa).<br />

Note: The operator has a range of 10 VDC above and below the center point for<br />

a total range of 20 VDC.<br />

Note: Extreme cases of pickout or dark defect may need changes of 5 to 10<br />

VDC to correct printhead performance. Small changes of about 2 VDC<br />

can correct minor cases of pickout or dark defect.<br />

Use the following procedure to change the center point of the operator<br />

charge voltage adjustment range.<br />

Find and record the charge voltage window with the following steps:<br />

1. From the CONTROL MENU screen, select function 8 Service<br />

Menu.<br />

2. Select function 9 Parameters Menu, and enter the password.<br />

3. Select 5 Charge Voltage.<br />

4. Lower the charge voltage to find the lowest charge voltage that will<br />

allow printing without dark defect.<br />

Lowest charge voltage setting:<br />

VDC.<br />

A - 4<br />

DT2 <strong>Print</strong> <strong>Station</strong>

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