Xerox Phaser 6120 Service Manual page 258

Image Transfer Belt Unit
Waste toner scraped off by the Cleaning Blade is collected by the Toner Collecting Screw
for Transfer Belt.
The waste toner collected by the Toner Collecting Screw is conveyed to the Imaging Unit
by way of the Waste Toner Conveyance Unit.
.
Waste Toner Full Detection System
A waste toner near full condition is detected using the output state of the Waste Toner Near
Full Detection Board (PWB-C).
A waste toner near full condition is detected by letting the light emitted from the LED
mounted on the Waste Toner Near Full Detection Board (PWB-C) travel through the light
guide.
Phaser® 6120 Color Laser Printer Service Manual
Print Engine Theory of Operation
Toner Collecting Screw
Toner Agitating Screw
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