Canon iR3245, Service Manual

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Chapter 18
18-28
18.4.3 Downloading Dcon and Rcon
18.4.3.1 Outline
0019-0095
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
DCON/RCON is downloaded by way of the main controller unit.
The DC controller PCB/reader controller PCB is equipped with a boot ROM, and downloading may be attempted multiple times in the event of failure.
DCON differs between the iR3245/3235/3230 and the iR3225. The system software designed for the iR3245/3235/3230 is stored as iR3245, while the system soft-
ware designed for the iR3225 is stored as iR3225.
The machine has a mechanism to read the appropriate system software. It is a good idea to download both types of DCON.
F-18-45
You will not be able to download RCON unless the DC controller has started up normally (as, otherwise, the power supply control signal will not be valid and, as a
result, the reader unit remains without power).
Points to Note About Upgrading the DC Controller/Reader Controller
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.
Service PC(SST)
USB device
Reader unit
iR ----
DCON
RCON
Main controller
unit
DC controller PCB
Download
Power supply
control signal
Power cable
CPU
Reader controller PCB
CPU
Power supply
unit
Boot ROM
DIMM
Flash ROM
Printer unit
Signal cable
iR ----