Lexmark MS812 Print Quality Guide - Page 18

Action Replace the imaging unit, and then resend the print job. Is the print density uneven? Vertical voids appear on prints Print quality Guide Page 18 of 19 Yes Contact customer support. No The problem is solved. Action Step 1 a Make sure your software program is using a correct fill pattern. b Resend the print job. Yes Go to step 2. Do vertical voids appear on prints? Step 2 Go to step 3. a From the printer control panel, set the paper type and weight in the Paper menu to match the paper loaded in the tray. b Resend the print job. Do vertical voids appear on prints? Step 3 Check if you are using a recommended type of paper. a Load the specified tray or feeder with a recommended type of paper. b Resend the print job. Go to step 4. Do vertical voids appear on prints? Step 4 Go to step 5. a Redistribute the toner in the imaging unit. 1 Remove the toner cartridge, and then the imaging unit. 2 Firmly shake 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. 3 Reinstall the imaging unit, and then the cartridge. b Resend the print job. Do vertical voids appear on prints? No The problem is solved. The problem is solved. The problem is solved. The problem is solved.