COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000
CANON iR105 REV.0 JULY 2001
CHAPTER 3 MAIN CONTROLLER
3-2
1.2 Outline of the Electrical Circuitry
1.2.1 Outline
The major electrical mechanisms of the controller block are controlled by the CPU on the
main controller PCB; the following table shows the functions of the IC and hard disk lo-
cated around the CPU (e.g., RAM, DIMM) and of the CPU itself:
1.2.2 Main Controller PCB
T03-102-01 List of Functions
1.2.3 Hard Disk Drive
T03-102-02
Name
Description
CPU
• Controlling image processing of input image data from the reader unit
• Controlling image processing of output image data to the printer unit
• Controlling the hard disk drive
• Controlling the following: network interface, DMA controller, PCI interface,
ROM/RAM interface
RAM
• Storing temporarily program data and image data
DIMM-ROM
• Storing the system control program
• Storing the boot program
Name
Description
HDD
• Storing system software
• Storing image data for the box function
Summary of Contents for iR105 Series
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