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Maintaining Your Printer 637
Cleaning the CTD Sensor
Clean the Color Toner Density (CTD) sensor only when an alert for the CTD
sensor is shown on the Status Monitor or operator panel.
1
Ensure that the printer is turned off.
2
Pull the standard 250-sheet tray out of the printer about 200 mm. Hold the
standard 250-sheet tray with both hands, and remove it from the printer.
3
Push the side button to open the front cover.