Vertical Marks on the Print Possible Causes Actions You Should Take Print Sample The toner cartridge is
damaged Replace the toner cartridge with a
new one Vertical Bands of Deletions or Light Areas on the Print Possible Causes Actions You Should Take Print Sample The toner cartridge is not
installed correctly Reinstall the toner cartridge The toner cartridge is
damaged Replace the toner cartridge with a
new one The toner cartridge is low
on toner Replace the toner cartridge with a
new one The ROS mirror is dirty Clean the mirror (see “Cleaning the
ROS Mirror” on page  96) Appendix D.   Print Quality Problems 181