Construction; Construction And Functions - Canon iR C3380 series Service Manual

4.1 Construction

4.1.1 Construction and Functions

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The machine's main controller block consists of the following components and provides the functions indicated:
Item
[1] Main controller PCB (main)
[2] Main controller PCB (sub R-A)
[3] Main controller PCB (sub PDRM-EF-A)
[4] Main controller PCB (sub SJ-A)
[5] Main controller PCB (sub LAN-bar-A)
[6] Boot ROM
[7] SRAM PCB
[8] DDR-SDRAM
[9] Main controller PCB (sub RB-A)
HDD HDD
[A] Reader unit
[B] DC controller PCB
[C] Printer unit
T-4-1
Description
controls the system, controls the memory, controls image processing for output to the printer
color space conversion, rotation for electronic sorting, binary processing, resolution conversion
image processing for printer output (color space compression, background removal, LOG conversion,
direct mapping, color balance, zoom fine adjustment, gradation conversion, screen processing,
framing, add-on)
scanner interface, scanner image processing (resolution conversion, image rotation, compression/
expansion)
LAN connection, HDD controller, HDD power supply
stores programs used for booting
retains service mode settings and HDD control information
retains program data and image data temporarily
(to be translating)
stores system software, retains image data for Box/fax functions
[A]
[1]
[B]
HDD
[C]
[9] [8]
F-4-1
[2]
[3]
[3]
[4]
[5]
[6]
[7]
Chapter 4
0013-9208
4-1