Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 874

■ Points to Note at Time of Downloading
CAUTION : Do Not Turn Off the Power During Download / Write Operation
Do not turn OFF the power while the system software is being downloaded or written.
The machine may fail to start when the power is turned ON.
If the power cannot be turned ON, try to start it in safe mode (press 2 + 8
simultaneously).
If the machine starts in safe mode, download the system software again. If not, replace
HDD and download the system software.
CAUTION :
It is recommended to download DCON / RCON in normal mode.
DCON / RCON may be downloaded in either normal mode or safe mode. However, if
done in safe mode, the version information of DCON / RCDON will not be obtained.
In this case, DCON / RCON on HDD is always overwritten by DCON / RCON on SST
regardless of versions; thus it may be downgraded.
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