Lexmark CS921 Users Guide PDF - Page 178
Repeating defects
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Troubleshooting 178 Action Yes Step 1 Go to step 2. a Depending on your operating system, specify the paper type from the Printing Preferences or Print dialog. Notes: • Make sure that the setting matches the paper loaded. • You can also change the setting on the printer control panel. Navigate to: Settings > Paper > Tray Configuration > Paper Size/Type b Print the document. No The problem is solved. Do vertical white lines appear on prints? Step 2 Check if you are using the recommended paper type. a Load the paper source with the recommended paper type. b Print the document. Go to step 3. The problem is solved. Do vertical white lines appear on prints? Step 3 a Remove, and then insert the imaging kit. Contact customer support. Warning-Potential Damage: Do not expose the imaging kit to direct light. Extended exposure to light may cause print quality problems. Warning-Potential Damage: Do not touch the photoconductor drum under the imaging kit. Doing so may affect the quality of future print jobs. b Print the document. The problem is solved. Do vertical white lines appear on prints? Repeating defects 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.