Lexmark M5255 Users Guide PDF - Page 181
Vertical dark streaks with print missing, Step 1, Warning-Potential Damage
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Troubleshooting 181 Vertical dark streaks with print missing Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to Settings > Troubleshooting > Print Quality Test Pages. For non‑touch‑screen printer models, press to navigate through the settings. Action Yes Step 1 Go to step 2. a Remove the imaging unit. Warning-Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes. Extended exposure to light may cause print quality problems. Warning-Potential Damage: Do not touch the photoconductor drum under the imaging unit. Doing so may affect the quality of future print jobs. b Remove any packing material that is stuck on the imaging unit. No The problem is solved. Note: Make sure to remove any obstruction between the charge roller and photoconductor drum. c Insert the imaging unit. d Print the document. Do vertical dark streaks with missing images appear on prints?