Construction; Functional Construction(Ir105); Construction/Function - Canon ImageRunner iR8500 Series Service Manual

4.1 Construction

4.1.1 Functional Construction(iR105)

iR105
The machine may be broadly divided into the following functional blocks (controller area in the shaded block):

4.1.2 Construction/Function

iR105i/iR105+ / iR9070 / iR8070
The machine's main controller block consists of the following and has the following functions:
Reader unit
Controller block
Main controller PCB
Printer unit
Item
Main controller PCB
SRAM
Image memory (SDRAM)
BOOTROM
HDD
USB port
Ethernet port (10/100Bsae-T) Ethernet interface
Control
panel
Options boards
HDD
F-4-1
T-4-1
Description
Controls system operation, memory, printer unit
output, image processing, printer unit image
input processing, rendering, color LCD
controller, card printer unit interface, fax image
processing, etc.
Retains service mode settings (by SRAM), HDD
management information
Temporarily retains image data (512 MB)
Stores boot program
Stores system software, retains image data for
Box function (20 GB)
USB2.0 interface
Chapter 4
0006-9729
0008-2233
4-1