Canon iPF6400S User Manual page 574

Control Panel Display
Display Transitions in Normal Status
The display transitions while the printer is in the normal status (the status where no errors have occurred) are
shown below.
*1: The printer automatically enters Sleep mode when idle for a specific period (by default, five minutes), that is, if
no print jobs are received or buttons are pressed while all covers are closed. However, it does not enter Sleep
mode while error messages are displayed or when a roll can be manually advanced by pressing the Feed but-
ton.
*2: When the printer is in Sleep mode, you can press any button except the Power button to recover from Sleep
mode. Sleep mode is also terminated if a print job is received or a command is issued from RemoteUI.
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iPF6400S
User's Guide