Image Formation Process - Canon imageRUNNER 2525 Series Service Manual

No. Name
[1] Toner cartridge
[2] Drum unit
[3] Brush roller
[4] Primary charging roller
[5] Cleaning blade
[6] Waste toner feed screw
[7] Photosensitive drum
[8] Static eliminator
[9] Transfer roller
[10] Developing cylinder
[11] Developing unit
[12] Toner feed screw (Inside developing
unit)
[13] Toner feed screw (Inside sub hopper)
[14] Sub hopper

■ Image Formation Process

The image formation system of the machine mainly consists of the photosensitive drum, primary charging roller, developing
cylinder, transfer charging roller, static eliminator, and cleaning blade. The image formation process around the drum unit contains
the six blocks.
[1]
[14]
[13]
[12] [11]
Cartridge filled with the toner for supply
Unit consisting of the photosensitive drum, primary charging roller, etc.
Rotates in connection with the primary charging roller to clean its surface.
Rotates in connection with the photosensitive drum to cause it negatively charged.
Scrapes off the residual toner on the photosensitive drum.
Feeds the toner scraped off by the cleaning blade to the waste toner box.
Forms images on the surface of the photosensitive drum.
Applies negative charge to the back of paper to cause it separated from the photo-
sensitive drum.
Applies positive charge to the back of a paper to cause the toner to be transferred to
it.
Transfers the toner in the developing unit to the photosensitive drum.
Unit consisting of the developing cylinder, developing blade, etc.
Feeds the toner supplied from the sub hopper into the developing unit.
Feeds the toner supplied from the toner cartridge to the developing unit.
Stores the toner supplied from the toner cartridge.
[2] [3] [4]
[5]
[10]
Function
54
2. Technical Explanation
[6]
[7]
[8]
[9]