Boot/Shutdown Sequence - Canon imageRUNNER ADVANCE 8105 Series Service Manual

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Technology > Main Controller > Overview > Boot/Shutdown sequence
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Boot/Shutdown sequence

●
Boot sequence
Standby screen display
MEMO :
Due to the high speed startup, the progress bar and the activating PCB are not
synchronized.
For this reason, the progress bar cannot be utilized for troubleshooting.
See the following error code list for the troubleshooting.
2 Technology > Main Controller > Overview > Boot/Shutdown sequence
[ ]: program storage location
- Starting BIOS
[Main controller PCB 1]
- Starting IPL, OS
[Flash PCB]
- Starting system software for main/sub CPU
[HDD -> DDR2-SDRAM]
- Starting application
F-2-15 F-2-15
Related error codes (major error codes):
Error code
E602 HDD error
0001 HDD failed to be recognizedStartup partition (BOOTDEV) is not found at startup
No system software for the main CPU
0002
No system software for the sub CPU
0006
4000 Startup failure of OS
OS startup file is not found
4001
Insufficient memory
E604
MEMO :
When the following errors occur, the system of the host machine has not been started
normally.
Therefore the error code is not recorded in the log.
E602-
0001
0002
0006
4000
4001
● Shutdown sequence
Before turning OFF the main power switch, it is necessary to perform HDD completion
processing (to preventdamage on the HDD), cooling of the internal printer (to prevent fixed
toner due to high temperature) and exhaust (to prevent smeared image due to chemical
reaction of ozone in the machine and photosensitive drum). This sequential processing is
called "shutdown sequence" and was executed on the legacy models manually (by holding
down the power supply switch on the Control Panel for a specific duration).
When the main power switch is turned OFF on the main body, Main Controller PCB 1 detects
this operation and then the shutdown sequence starts/executes automatically.
MEMO :
On the assumption that the shutdown sequence was not completed normally, the host
machine is shut down by the Relay PCB in approx. 120 seconds.
2-11
Error description
2-11
T-2-8 T-2-8