Image Formation System; Overview - Canon imageRUNNER ADVANCE C5255 Series Service Manual

2
Technology > Image Formation System > Overview > Specifications

Image Formation System

Overview

■ Overview
Image formation system of this machine uses the magnetic 2-component jumping developing
method for developing and the intermediate transfer method for transfer to create toner
image.
To increase life of the image formation unit, this machine uses the primary transfer
disengagement method as a new technology.
Following shows major improved points compared to the previous iRC3880/2880 series.
Purpose : Improved points :
Lower running cost Separating developing assembly from drum unit
Improved life of drum unit Introducing Bk drum (highly-durable type)
Improved life of developing assembly Introducing ACR (Auto Carrier Refresh) technology
Improved productivity Separating the laser scanner unit into 2 units
(4-beam for each laser driver) (see Note)
Primary transfer roller
ITB cleaner unit
Y M
Developing
assembly
Laser Laser
Developing
cylinder
Photosensitive
Charging
drum
roller
drum unit
Laser scanner unit 1
Note :
4-beam for iR ADVANCE 5255/5250, 2-beam for iR ADVANCE 5240/5235
2 Technology > Image Formation System > Overview > Specifications
Secondary transfer
inner roller
ITB belt
Post-secondary
transfer static eliminator
Secondary transfer
outer roller
ITB unit
C Bk
Patch sensor
Laser Laser
Laser scanner unit 2
■ Specifications
Item
Photosensitive Material
Drum
O/D of drum
Cleaning
Process speed
Drum heater
Developing Developing cylinder
assembly
Developing method
Toner
Toner level detection
O/D of cylinder
Primary Charging method
charging
O/D of roller
Cleaning
Toner Toner amount (the life value
container is based on A4 size with 5%
image ratio)
Detection of toner container
(presence)
Availability to replace a toner
container (during continuous
print)
Transfer method
ITB unit Material
Circumferential length
Cleaning
Belt displacement correction
Primary Transfer method
transfer
Disengagement mechanism
O/D of roller
Secondary Transfer method
transfer
Disengagement mechanism
Cleaning
O/D of secondary transfer inner
roller
O/D of secondary transfer outer
F-2-62
roller
Separating method
Patch sensor
2-44
Function/Method
OPC
30mm
Cleaning blade
imageRUNNER ADVANCE C5051=246mm/s,
imageRUNNER ADVANCE C5045=246mm/s,
imageRUNNER ADVANCE C5035/5030=160mm/s
Mounted with Bk drum as a standard.
Assigned as an option for color drums.
1pc (single developing)
Dry, 2-component jumping
Non-magnetic negative toner
Not available
20mm
Roller charging
14mm
Brush roller
imageRUNNER ADVANCE C5051/5045
Bk: approx. 940g (Life: approx. 40k)
Color: approx. 590g (Life: approx. 30k)
imageRUNNER ADVANCE C5035/5030
Not Available
Available
Intermediate Transfer (ITB)
PI (Polyimide)
893mm
Cleaning blade
Available (photosensitive sensor)
Transfer roller
Available
16mm
Transfer roller
Not available
Electrostatic cleaning
16mm
24mm
Curvature separation + static eliminator
Yes
2-44
T-2-26