Laser printer print defects - Repetitive defects

Problem	Possible Cause	Solution
Repetitive defects	Defective toner cartridge	Perform a half-way test. Replace the toner cartridge if necessary.
Repetitive defects	Defective fuser	Perform a half-way test. Replace the fuser if necessary.
Repetitive defects	There are a variety of causes for repetitive defects. Check the repetitive defects ruler.	See repetitive defect ruler.