Canon iR3570 Service Manual page 713

4) Click [OK].
5) When you are done with downloading, turn off and then on the main power (iR4570/3570, 2870/2270 Series).
6) See the status of upgrading indicated on the control panel of the machine (iR4570/3570, 2870/2270 Series). When a message appears asking you to turn off and
then on the switch, turn off and then on the main power (iR4570/3570, 2870/2270 Series).
Be sure not to turn off the machine while it is executing a downloading session or writing downloaded system software. The write operation will be suspended, and
the machine may fail to start up.
If the machine fails to start up, format BOOTDEV using HDFormat, and download System, Language, and RUI.
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Chapter 17
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