Construction; Construction And Mechanisms - Canon imageRUNNER 2270 Service Manual

4.1 Construction

4.1.1 Construction and Mechanisms

The machine's main controller block consists of the following and has the following
functions:
Item
Main controller PCB
SRAM
Image memory (SDRAM)
BOOTROM
HDD
USB port
Ethernet port (10/100Bsae-
T)
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 (256 MB x 2)
Stores boot program
Stores system software, retains image data for
Box/Fax function (20 GB)
USB2.0 interface
Ethernet interface
Chapter 4
0007-6459
4-1