Troubleshooting 6-3
Print Quality Problems
The tables and diagrams in the following sections define print quality 
problems and the corrective action you can conduct to solve the 
problems. Some solutions may require cleaning or replacing parts of the 
printer. 
If the suggested corrective action will not solve the problem, call for 
service representative.
Printed Results Corrective Action
Completely blank printout Check the toner container.
Open the front cover and check that the toner container is correctly 
installed in the printer. Refer to Toner Container Replacement on 
page 5-2.
Full single-color printout Contact your service representative.
Dropouts, stray dots Drum or developer unit may be damaged. If the problem is not solved 
even after printing several pages, call for service representative.
Vertical streaks Check the toner container and if necessary replace. Refer to Toner 
Container Replacement on page 5-2.
Clean the charger wire. Refer to Cleaning the Printer on page 5-6.
Check the charger cleaner of the drum unit is in its original position. 
Refer to Cleaning the Printer on page 5-6.