Lexmark MX421 Users Guide PDF - Page 214
Print jobs do not print, Adjusting toner darkness, Settings, Print, Quality
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Troubleshooting 214 Print jobs do not print Action Yes Step 1 The problem is a From the document you are trying to print, open the Print solved. dialog, and then check if you have selected the correct printer. b Print the document. Is the document printed? Step 2 a Check if the printer is on. b Resolve any error messages that appear on the display. c Print the document. The problem is solved. Is the document printed? Step 3 a Check if the ports are working and if the cables are securely connected to the computer and the printer. The problem is solved. For more information, see the setup documentation that came with the printer. b Print the document. Is the document printed? Step 4 The problem is a Turn off the printer, wait for about 10 seconds, and then turn on solved. the printer. b Print the document. Is the document printed? Step 5 a Remove, and then reinstall the print driver. b Print the document. The problem is solved. Is the document printed? Adjusting toner darkness 1 From the home screen, touch Settings > Print > Quality. 2 Adjust the toner darkness. 3 Apply the changes. No Go to step 2. Go to step 3. Go to step 4. Go to step 5. Contact customer support.