2-98 Service ManualPrint quality service checksNote: Ensure cover closes tightly. A gap in the opening may allow light toexpose the photoconductor resulting in a ‘dirty’ print. Extremeenvironmental conditions, temperatures, and humidity will affect theprint quality.Using print quality test pagesTo help isolate print quality problems, like streaking, print test pages usingthe print quality test pages.Models E238, E240, and E240nTo print the print quality test pages:1. Enter Configuration Menu.a. Turn off the printer.b. Open the front access cover.c. Turn on the printer while pressing and holding .d. When light stays on, close cover.e. Wait (approximately 10 seconds) until the printer drive activates.2. Slowly press and release three times until the and lightscome on.3. Press and hold until all the lights flash to initiate printing the qualitytest pages.Four pages print to help you evaluate print quality. The first page hasvarious fonts and a graphic, the second page is gray with graphics, thethird page is black, and the last page is blank. Once the paper exits intothe output bin, the printer returns to the home state (four top lights on).4. Use the test pages to isolate problems such as light or toner streaks.See “POST symptom table” on page 2-79 for solutions to theseproblems.To exit print quality test pages, turn the printer off.Models E340 and E342nTo print the print quality test pages:1. Enter Configuration Menu.a. Turn the printer off.b. Press and hold Select and Return.c. Turn the printer on.d. Release the buttons when Performing Self Test displays.2. Select Prt Quality Pgs.
