Canon iR2270 Series, Руководство по обслуживанию

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Chapter 4
4-2
F-4-1
4.1.2 Construction and Functions
0008-8054
/ iR3530
The machine's main controller block consists of the following components arranged as shown:
T-4-2
Item Description
Main controller PCB controls system; controls memory; controls
printer output image
processing control, reader image input
processing, rendering processing; controls
color LCD controller, card reader interface;
controls fax image processing
SRAM retains service mode settings and HDD
management information (SRAM)
Image memory (SDRAM) temporarily retains image data
128 MB (256 MB max.)
BOOTROM stores boot program
Main controller PCB
USB port
Riser board
Boot ROM SRAM
Ethernet
10/100BASE-T
Hard disk drive
DC controller PCB
Reader unit
Image memory (SDRAM)