Canon iR C3200 Series, Руководство по обслуживанию

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Chapter 5
5-7
5.3
Start-Up Sequence
5.3.1 Outline
0000-4285
The system control software used to control the machine is stored on the HDD. At time of startup, the CPU on the
controller PCB follows the boot program to read the system software from the HDD to the Image Memory (SDRAM)
on the controller PCB.
While the CPU reads the system software from the HDD to the Image Memory (SDRAM), the control panel shows
the following screen, and the startup sequence under way is indicated by the progress bar on the screen.
F-5-6
Never turn off the main power while the progress bar is indicated. The HDD is being accessed during the period, and
turning off the power can cause a fault (E602) on the HDD.
5.3.2
Startup Sequence
0000-4286
<Boot ROM Area>
- Self Diagnosis Program
When the main power is turned on, the CPU on the main controller PCB executes the start-up sequence. In the course
of the sequence, the state of the image memory (SDRAM) and the HDD is checked, and an error code will be
indicated if a fault is detected.
- Boot Program
When the self diagnosis program ends normally, the CPI on the main controller PCB starts up the boot program.
When the program is run, the system software is read from the HDD and is written to the system area of the image
memory (SDRAM).
<Image Memory (SDRAM) Area>
A set of instructions is executed by the system software written in the boot program, initializing various settings (e.g.,
I/F settings of the main controller).
Starting up. Please wait.
Progress bar