Downloading Dcon And Rcon - Canon ImageRunner iR8500 Series Service Manual

5) Turn OFF and back ON the main power.
Never turn OFF the power of the machine while the machine executes writing. If the power is turned OFF at this time, the writing is interrupted, and the
machine fails to start up as a result.
When the machine does not start up, format BOOTDEV using the HD format, and then download System, Language, and RUI.
6) Turn OFF and back ON the main power according to the screen on the control panel.
Replace the BootROM if downloading with the SST ended in failure and the machine does not start up as a result.

18.4.7 Downloading Dcon and Rcon

18.4.7.1 Outline
iR105i/iR105+ / iR9070
Versions of the reader controller PCB and DC controller PCB in this machine are upgraded by replacement of the ROM-DIMM.
Reader controller PCB:
DC controller PCB:
F-18-36
[1]
[2]
F-18-37
T-18-8
by replacement of flash ROM DIMM [1]; J1106
by replacement of flash ROM DIMM [2]; J521
Chapter 18
0008-5544
18-21