Used Toner Path

The used toner collection path can be divided into four parts:

• Upper horizontal path. Used toner from the drum cleaning unit.
• PTR cleaning unit path. Used toner from the PTR cleaning unit.
• Vertical Path. Used toner and paper dust from the ITB cleaning unit, paper dust, upper path and PTR path also empty into this duct.
• Lower horizontal path. Collection point for all the sources of used toner, paper dust from other paths for transport to the used toner bottle.

If one of the transport coils becomes jammed in the used toner path, the used toner lock sensor will signal an alert and stop the used toner transport motor, and the machine will issue SC488 (Used toner transport abnormal).