Canon imageRUNNER ADVANCE C5255 Series Service Manual page 94

2
Technology > Image Formation System > Controls > Transfer/separation
■ Transfer/separation
● Overview
Drive roller
(steering roller)
ITB Cleaning
blade
Waste toner
feeding screw
Primary transfer
auxiliary roller
Primary transfer
Tension roller
Primary transfer
roller
roller
(M)
(Y)
Toner on the photosensitive drum is transferred on paper
Parts name
ITB unit To transfer toner on the photosensitive drum to the paper
ITB (Intermediate Transfer Belt) To transfer toner on the photosensitive drum
Primary transfer roller To attract toner on the photosensitive drum to the ITB
Primary Transfer Auxiliary Roller Make the contact surface of the ITB and the drum horizontal in
color mode.
Static eliminator To drive ITB. To correct the displacement of ITB.
ITB scraper To scrape toner inside the ITB
Tension roller To keep appropriate tension of the ITB
Cleaning blade To scrape toner on the ITB
Waste toner feeding screw To feed residual toner inside the ITB cleaner unit
Secondary transfer unit To transfer toner on the ITB to the paper
Secondary transfer outer roller To attract toner on the ITB to the paper and feed the paper
Static eliminator To eliminate electric charge on the paper after secondary
transfer
2 Technology > Image Formation System > Controls > Transfer/separation
Post-secondary transfer
static eliminator
ITB scraper
Secondary transfer
Primary transfer
Primary transfer outer roller
roller
roller
(Bk)
(C)
Function
T-2-35
● Drive configuration
ITB motor
M13 M14
ITB steering
position sensor(PS24)
Drive roller
(steering roller)
Waste toner
feeding screw
ITB cleaning
Primary
blade
transfer
auxiliary roller
Tension roller
F-2-81
Primary transfer
roller(Y)
Parts name
M13 ITB motor
M14 ITB displacement
control motor
M15 Primary transfer
disengagement motor
PS24 ITB steering position
sensor
PS22 Primary transfer
detachment sensor 1
PS23 Primary transfer
detachment sensor 2
PS25 to 28, ITB displacement
PS58 sensor
UN47 to 48 Patch Sensor (front/
rear)
UN49 Patch Sensor (center) To detect patch density for image stabilization control (D-max,
ITB displacement control motor
ITB displacement
sensor 1 to 5 (PS25 28,PS58)
Primary transfer
disengagement sensor 2(PS23)
ITB scraper
Primary transfer
Idol roller
disengagement sensor 1(PS22)
Primary transfer
roller(C)
Primary transfer Primary transfer
roller(M) roller(Bk)
Primary transfer disengagement motor
M15
Function
To rotate the ITB and the waste toner screw
To move the drive roller (steering roller)
To make the Primary Transfer Auxiliary Roller and the primary
transfer roller (Y/M/C) engaged/disengaged
To detect position of the drive roller (steering roller)
To detect whether the Tension Roller and Primary Transfer
Roller (Y/M/C) are pressurized condition.
To detect whether the Tension Roller and the Primary Transfer
Roller (Y/M/C) is disengaged condition.
To detect position of the ITB
To detect color displacement level (amount)
D-half, etc.) and to detect the color displacement amount
2-56
Secondary transfer
outer roller
Patch sensor
(Front/Center/Rear)
(UN47 / UN48 / UN49)
F-2-82
T-2-36
2-56