To print color images using the ImagePrintDocument class you must use a boolean value of (true) for the RenderBottomTop parameter.

This method will draw the image onto a graphics object and convert to a bottom-top Bitmap if necessary. Some devices such as printers will fail when drawing a top-bottom image such as those internally stored in DotImage and .NET.

Example

ImagePrintDocument printDoc = new ImagePrintDocument();

printDoc.GetImage += new PrintImageEventHandler(PrintDocument_GetImage);

void PrintDocument_GetImage(object sender, PrintImageEventArgs e)
{
	AtalaImage img= new AtalaImage(imagePath);
	img.Draw(e.Graphics, new Rectangle(100, 100, Convert.ToInt32(e.Graphics.DpiX), Convert.ToInt32(e.Graphics.DpiY)), new Rectangle(Point.Empty, img.Size), true);
}

Original Article:
Q10209 - HOWTO: Print Color Images