6. Close the tray.
Figure 2-137 Close the tray
Check the scanner glass for dirt and smudges (M577 only)
Over time, specks of debris might collect on the scanner glass and white plastic backing, which can aect
performance. Use the following procedure to clean the scanner if the printed pages have streaks, unwanted
lines, black dots, poor print quality, or unclear text.
1. Press the power button to turn the printer o,
and then disconnect the power cable from the
electrical outlet.
ENWW Clean the printer 439
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