Streakers; Open Jets; Figure 3.6 Slight Streaker, Sample Test Pattern; Figure 3.7 Open, Sample Test Pattern - Kodak Versamark DP7122 Operator's Manual

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Figure 3.6

Slight streaker, sample test pattern

Figure 3.7

Open, sample test pattern

Streakers

Lines running through the image can be caused by misaligned jets.

Cleaning should correct a streaker. A slight amount pickout or dark defect

looks the same as a streaker. Figure 3.6 shows a streaker on a test

pattern printed at 155 volts and 37 phase counts.

A clogged jet does not print, producing an 'open' spot in the test pattern.

Open jets are typically caused by contamination on the orifice plate.

Cleaning should correct an open jet. Figure 3.7 shows an open jet.

Note: An 'open jet' should not be confused with an 'open charge lead'. An open

charge lead (one that never goes into catch) causes a streaker.

Chapter 3. Troubleshooting

Identifying Print Defects

Streaker

Open

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