Lexmark W812 User's Reference - Page 37

Symptom Print irregularities White or black line Cause • Paper has absorbed moisture due to high humidity. • You are using paper that does not meet the printer specifications. • The fuser is worn or defective. Solution • Load paper from a fresh package in the paper tray. For information on storing paper, see Storing paper. • Use recommended paper and specialty media. Avoid textured paper with rough finishes. Refer to the Card Stock & Label Guide available on Lexmark's Web site for detailed specifications. • Replace the fuser. See Replacing the fuser. Either the print cartridge or the fuser is defective. 1 First, replace the print cartridge. See Replacing the print cartridge. 2 If you still have the problem, replace the fuser. See Replacing the fuser. Streaked horizontal lines The print cartridge or fuser may be defective, empty, or worn. Replace the print cartridge or fuser as needed. See Replacing the print cartridge or Replacing the fuser for more information. 37