Canon imageRUNNER ADVANCE C5255 Series Service Manual page 90

2
Technology > Image Formation System > Controls > Developing/drum
● Drum overview
Photosensitive drum
Cleaning brush roller
Parts name
Drum unit To create toner image by the toner from the developing cylinder after the
static latent image has been created on the photosensitive drum.
Light guide To expose pre-exposure LED light on the photosensitive drum
Photosensitive drum To create toner image on the photosensitive drum
Primary charging roller To make the surface of photosensitive drum to be evenly-charged potential
Charging cleaning To remove residual toner on the primary charging roller
brush roller
Drum cleaning blade To remove residual toner on the photosensitive drum
Waste toner screw To feed residual toner
2 Technology > Image Formation System > Controls > Developing/drum
Pre-exposure LED light guide
Waste toner screw
Drum cleaning blade
Primary charging roller
F-2-75
Function
T-2-32
● Drive configuration
Drum encoder sensor 1
Drum encoder sensor 2
(UN31 / 33 / 35 / 37)
(UN32 / 34 / 36 / 38)
Photosensitive
drum
Cleaning brush roller
Parts name
M1 to M4 Drum motor To rotate the photosensitive drum, the waste toner screw
UN31 to UN38 Drum rotation sensor 1/2 To detect rotation of the photosensitive drum
2-52
Drum motor
M1 M4
Pre-exposure LED
light guide
Waste toner screw
Drum cleaning blade
Primary charging roller
F-2-76
Function
T-2-33
2-52