Canon iR C6800 Series Service Manual page 1369

16.4.5 Downloading the Dcon and Rcon Software
16.4.5.1 Outline
The DC controller/Reader controller files are downloaded by way of the main controller block.
Both DC controller PCB and the Reader controller PCB are wquipped with booy ROMs, permitting retries if
downloading fails.
PC for service
SST
iR XXXX
Unless the DC controller has started up normally, not permitting downloading of Reader controller files.
(Because the power supply control signal will not be validated, not supplying the reader unit with power.)
Download
Dcon
Downloading
possible only
Rcon
in normal mode
CPU
DC controller PCB
iR XXXX
Printer unit
Signal cable
Main controller
block
Flash ROM
Power supply
Boot ROM
controller signal
F-16-86
Reader unit
Flash ROM
CPU
Boot ROM
Reader controller PCB
Power cable
Power supply
unit
Chapter 16
0001-1660
16-63