Canon LBP6230dw Manual page 41

Printing in the quiet mode only for specific printing
Specify the quiet mode in the printer driver when making print settings. For basic printing using the printer
driver, see
[Finishing] tab
screen
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Basic Print Operations.
Click [Advanced Settings]
Select [Special Settings 3] from the drop-down list
Select [Special Print Mode] in the [Advanced Settings]
[OK] [OK]