COPYRIGHT
©
2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 2 SEQUENCE OF OPERATIONS
2-2 P
1.2 Outline of Electrical Circuitry
1.2.1 Outline
The major electric mechanisms of the printer unit are controlled by the CPU on the DC
controller PCB; the principal functions of the major elements are as follows:
1.2.2 DC Controller PCB
T02-102-01 List of Control Items
Name
CPU
RAM
DIMM ROM
EEP-ROM
ROM
Description
• Controls jobs • Controls state of operation
• Controls fixing temperature • Controls high voltage
• Controls potential • Controls toner supply • Controls paper feeding
• Controls printing sequence • Controls output • Controls motors
• Controls finisher (accessory)
• Controls communications with controller unit • Controls service mode
• Stores service mode data
• Stores user mode data
• Stores control data
• Flash memory for storing control program
• Backs up RAM data
• Mask ROM for control program (for future use)
Download Free Service Manual at http://printer1.blogspot.com
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