Canon IMAGERUNNER ADVANCE C5045, Service Manual

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2-53
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Transfer/separation
Overview
Secondary transfer
outer roller
Primary transfer
roller
(Bk)
Primary transfer
roller
(C)
Primary transfer
roller
(M)
Primary transfer
roller
(Y)
Tension roller
ITB Cleaning
blade
Waste toner
feeding screw
Drive roller
(steering roller)
ITB scraper
Post-secondary transfer
static eliminator
Primary transfer
auxiliary roller
Toner on the photosensitive drum is transferred on paper
Parts name Function
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
To make the contact surface of Primary Transfer Roller (Y) with
the ITB horizontal.
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
■
●
F-2-86 F-2-86
T-2-31 T-2-31
Drive configuration
M13 M14
M15
Secondary transfer
outer roller
Patch sensor
(Front/Center/Rear)
(UN47 / UN48 / UN49)
Primary transfer
roller(Bk)
Primary transfer
roller(C)
Primary transfer
roller(M) Primary transfer
roller(Y)
Tension roller
Primary
transfer
auxiliary roller
ITB cleaning
blade
Waste toner
feeding screw
Drive roller
(steering roller)
ITB motor
ITB displacement control motor
ITB steering
position sensor(PS24)
Primary transfer disengagement motor
Primary transfer
disengagement sensor(PS22)
Primary transfer
disengagement sensor(PS23)
ITB displacement
sensor 1 to 4 (PS25 28)
Idol roller
ITB scraper
Parts name Function
M13 ITB motor
To rotate the ITB and the waste toner screw
M14 ITB displacement
control motor To move the drive roller (steering roller)
M15 Primary transfer
disengagement motor
To make the tension roller and the primary transfer roller (Y/M/C)
engaged/disengaged
PS24 ITB steering position
sensor To detect position of the drive roller (steering roller)
PS22 Primary Transfer
Pressure Sensor
To detect whether the Tension Roller and Primary Transfer
Roller (Y/M/C) are pressurized condition.
PS23 Primary Transfer
Disengage Sensor
To detect whether the Tension Roller and the Primary Transfer
Roller (Y/M/C) is disengaged condition.
PS25 to 28 ITB displacement
sensor
To detect position of the ITB
UN47 to 48 Patch Sensor (front/
rear)
To detect color displacement level (amount)
UN49 Patch Sensor (center)
To detect patch density for image stabilization control (D-max,
D-half, etc.) and to detect the color displacement amount
UN54 ITB HP sensor To detect home position of the ITB
●
F-2-87 F-2-87
T-2-32 T-2-32