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Major Components of Image Formation System
Name
Function
Toner cartridge
Toner cartridge filled with the toner for supply
Drum unit
Unit consisting of the photosensitive drum, primary charging roller, etc.
Brush roller
Rotates in connection with the primary charging roller to clean its surface.
Primary charging roller
Rotates in connection with the photosensitive drum to cause it negatively charged.
Cleaning blade
Scrapes off the residual toner on the photosensitive drum.
Waste toner feed screw
Feeds the toner scraped off by the cleaning blade to the waste toner container.
Photosensitive drum
Forms images on the surface of the photosensitive drum.
Static eliminator
Applies negative charge to the back of paper to cause it separated from the photosensitive drum.
Transfer roller
Applies positive charge to the back of a paper to cause the toner to be transferred to it.
Developing cylinder
Transfers the toner in the developing unit to the photosensitive drum.
Developing assembly
Unit consisting of the developing cylinder, developing blade, etc.
Toner feed screw
(Inside developing unit)
Feeds the toner supplied from the sub hopper into the developing unit.
Toner feed screw
(Inside sub hopper)
Feeds the toner supplied from the toner cartridge to the developing unit.
Sub hopper
Stores the toner supplied from the toner cartridge.