Lexmark MX310 User's Guide - Page 217

Troubleshooting 217 Action Yes Step 1 Go to step 2. a Reinstall the imaging unit. 1 Remove the toner cartridge, and then 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. 2 Install the imaging unit, and then the cartridge. b Resend the print job. Is the printer printing solid black pages? Step 2 Replace the imaging unit, and then resend the print job. Contact customer support. Is the printer printing solid black pages? No The problem is solved. The problem is solved. Repeating defects appear on prints Action Yes No Step 1 Measure the distance between the defects. Check for a distance between the defects that equals: • 97 mm (3.82 in.) • 47 mm (1.85 in.) • 38 mm (1.5 in.) Go to step 2. Is the distance between defects equal to one of the listed measurements? 1 Check if the distance between the defects equal to 80 mm (3.15 in.) 2 Take note of the distance, and then contact customer support at http://support.le xmark.com or your service representative. Step 2 Replace the imaging unit, and then resend the print job. Do the repeating defects still appear? Contact customer support at http://support.lexma rk.com or your service representative. The problem is solved.