Click the sample image below that best matches the issue on the PQ troubleshooting test page.
Color Definition: Cyan: 
If the issue repeating at regular intervals on the page, use a ruler to measure the interval between the nearest two defects.
Repetitive lines, streaks, or bands
unwanted lines, streaks, or bands oriented horizontally 
repeating down the page
Click here for other issues repeating at various intervals.
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