For Windows For Mac OS X
You can access online help for items in the printer driver from your application or the Windows Start menu. See Accessing the printer driver for Windows
In the printer driver window, try one of the following procedures.
Right-click the item, then click Help.
Click the button at the top right of the window, then click the item.
Click the Help button when items such as Print Settings or Color Management are selected in the Print dialog box.
For Windows
See 
button at the top right of the window, then click the item.
Top
Help button when items such as Print Settings or Color Management are selected in the Print dialog box.