Lexmark E320 Service Manual - Page 133
Using print quality test s (E320/E322), Using the special, function menu E320/E322
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4500 Using print quality test pages (E320/E322) To help isolate print quality problems, like streaking, print test pages using the print quality test pages setting: 1. Enter the special function menu. See "Using the special function menu (E320/E322) " on page 2-105 for more information. 2. Press and release the operator panel button twice quickly (double-button press) four times until the Ready/Data and Toner Low lights come on and the bottom two lights blink. 3. Press the operator panel button with a long button press (hold until all the lights come on) to initiate print quality test pages. Three pages print to help evaluate print quality. The first page has registration marks, the second page is gray, and the third page is black. Once the paper exits into the output bin, the printer returns to the Ready state. 4. Use the test pages to isolate problems such as light print or toner streaks. See the Troubleshooting tables for solutions to these problems. 5. To exit print quality test pages, press the operator panel button with a long button press (hold until all the lights come on). Diagnostic information 2-103