Canon 7086 Series Service Manual - page 722
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Chapter 18
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5) While downloading is under way, the control panel screen shows its progress. At the end of downloading, a message will appear asking you to press a key. Press
the appropriate key. If the machine is in normal mode, the shut-down sequence will start.
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6) When a message appears asking you to turn off the power, turn off the main power, remove the USB device, and turn the main power switch back on.
7) Upon start-up, the machine starts writing the system software to the system area of the HDD or the flash ROM. At the end of writing, a message will appear
asking you to turn off and then back on the power. Turn off and then on the main switch.
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