Start-Up Sequence; Overview - Canon iR7086 Series Service Manual

Chapter 4

4.3 Start-Up Sequence

4.3.1 Overview

0010-7846
iR7105 / iR7095 / iR7086
The system software that controls the machine is stored on its HDD.
When the main power is turned on, the CPU on the main controller PCB loads the system software from the HDD to the work memory (DDR-SDRAM) of the main
controller PCB according to the instructions of the boot program stored in the boot ROM.
While the CPU is initializing the memory or loading the system software, the following graphic will appear on the control panel screen, with a bar indicating the
progress of processing under way:
Progress bar
F-4-4
Do not turn off the main power while the progress bar is on the screen, indicating that the HDD is being accessed; otherwise, the HDD can suffer damage (E602).
4-4