Canon IMAGECLASS MF4150 - Manual (Page 42)

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NOTE
– To resume the normal mode from the Sleep mode, press [Energy Saver] on the operation panel.
– To enter the Sleep mode manually, press [Energy Saver] on the operation panel.
– The machine will not enter the Sleep mode when:
• the machine is in operation
• the Processing/Data indicator lights or flashes
• an error code or message appears on the display and the Error indicator flashes
• no paper is loaded in the paper feeding tray
• paper is loaded in the multi-purpose tray
• a paper jam occurs in the machine
– The machine will leave the Sleep mode when:
• you press [Energy Saver] on the operation panel
• a fax is received
• the handset of the external telephone is off the hook
• a print job is sent from a computer, and the print is started