Canon iR5000 - Page 48

COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 2 MAIN CONTROLLER
2-2 S
1.2 Outline of Electrical Circuitry
1.2.1 Outline
The major mechanism of the controller block are controlled by the CPU on the main con-
troller PCB. The CPU, such ICs as RAM and DIMM used in association with the CPU, and
hard disk drive have the following functions:
1.2.2 Main Controller PCB
T02-102-01 List of Control Items
1.2.3 Hard Disk Drive
Name
CPU
RAM
RAM
DIMM-ROM
Description
• Controls image processing of input image data from the reader unit.
• Controls image processing of output image data to the printer unit.
• Controls the hard disk drive.
• Controls the network interface, DMA controller, PCI interface, and ROM-
RAM interface.
• Controls the RAM interface.
• Temporarily stores program data and image data.
• Stores the system control program.
• Stores the boot program.
T02-102-02
Name
HDD
Description
• Stores the system software.Box
• Stores image data as part of the box function.
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