Hi WayneMiller,

I am not sure where you want to put this image, but if you want the image bellow the ribbon try this code (for me it is showing the image under the ribbon, when running the application):

<igRibbon:XamRibbonWindow x:Class="WpfAppTest.MainWindow"
    xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation
    xmlns:igRibbon=http://infragistics.com/Ribbon
    xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml
    Title="MainWindow" Height="391" Width="526"
    xmlns:my="clr-namespace:Infragistics.Windows.Ribbon;assembly=InfragisticsWPF4.Ribbon.v10.3"
    >
    <igRibbon:RibbonWindowContentHost>
        <igRibbon:RibbonWindowContentHost.Ribbon>
            <my:XamRibbon Name="ribbon" DockPanel.Dock="Top" Theme="Scenic">
                <my:XamRibbon.ApplicationMenu>
                    <my:ApplicationMenu Caption="Some App" />
                </my:XamRibbon.ApplicationMenu>
                <my:XamRibbon.QuickAccessToolbar>
                    <my:QuickAccessToolbar />
                </my:XamRibbon.QuickAccessToolbar>
                <my:RibbonTabItem Header="Home">
                    <my:RibbonGroup Caption="Clipboard" />
                </my:RibbonTabItem>
                <my:RibbonTabItem Header="Insert" />
            </my:XamRibbon>
        </igRibbon:RibbonWindowContentHost.Ribbon>
        <igRibbon:RibbonWindowContentHost.Content>
            <Image Name="viewer3D" Stretch="None" Source="/Images/ZoomedIn3D.png" />
        </igRibbon:RibbonWindowContentHost.Content>
    </igRibbon:RibbonWindowContentHost>
</igRibbon:XamRibbonWindow>