Lexmark CS943 Users Guide - Page 331
Vertical white lines
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Troubleshoot a problem 331 Vertical white lines Note: Before solving the problem, print the Print Quality Test Pages. From the home screen, touch Settings > Troubleshooting > Print Quality Test Pages. 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 box. Notes: • Make sure that the setting matches the paper loaded in the tray. • You can also change the setting on the printer control panel. From the home screen, touch 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 Go to step 3. Check if you are using the recommended paper type. a Load the specified paper source with the recommended paper type. b Print the document. The problem is solved. Do vertical white lines appear on prints? Step 3 a Remove the printhead wiper, and then clean the printhead lenses. b Print the document. Go to step 4. The problem is solved. Do horizontal dark lines appear on prints?