User's Manual

Maintaining Your Printer | 337
Cleaning Inside the Printer
Cleaning the Color Toner Density (CTD) Sensor
NOTE:
• Clean the CTD sensor only when an alert for the CTD sensor is shown on the Status Monitor or
touch panel.
1 Make sure that the printer is turned off.
2 Pull up the handle lever of the rear cover, and open the rear cover.
3 Clean the CTD sensor with a clean and dry cotton swab.
4 Close the rear cover.