As Didie said, as long as the printer you are using supports this you should be able to specify the pages per sheet property. This is how you can obtain the capabilities of your printer to see if this is supported:
PrintCapabilities capabilities = printQueue.GetPrintCapabilities();
I suggest you refer to the Print and Export with RadDocument example for RadGridView in the demos
to see how print preview can be implemented. Additionally, this
SDK example shows how you can print using RadRichTextBox's Print() overload which accepts PrintDialog as parameter.
I hope this helps.
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