10. Replace the black toner cartridge by adjusting it to the associated cartridge holder, and then insert
it firmly by pressing near the center of the label until the toner cartridge clicks.
11. Replace the other three toner cartridges as well.
12. Close the toner access cover.
Cleaning the Color Toner Density (CTD) Sensor
Clean the CTD sensor only when an alert for the CTD sensor is shown on the Status Monitor window
or operator panel.
1. Ensure that the printer is turned off.
Epson AcuLaser C1750 Series User’s Guide
Maintenance
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