Maybe this excerpt from the MicroStation help file, which should also apply to Bentley Substation, will help (emphasis added): [quote] Selecting the Rasterized check box allows you to create rasterized print files. The printer driver must support raster, so you cannot create rasterized prints using the Bentley HP-GL/2 printer driver . By default, Rasterized mode will be turned on when shaded display styles are detected. If Rasterized is unchecked, the shaded display styles will print using the non-rasterized visible edge path. The Rasterized check box will be disabled if the view contains any point clouds, or when printing to a printer driver that does not support Rasterized mode (e.g., HP-GL/2). If you are printing a 3D design model to a PDF printer driver and the Print to 3D check box is set, the Rasterized check box is not visible. Rasterized print mode is the best way to achieve complete fidelity between the view display and the printed output. It is the only way to achieve certain effects such as anti-aliasing and transparency. For very dense drawings, rasterized print mode also uses less memory than non-rasterized mode. When creating a rasterized print, the product breaks up the view into many tiles and makes multiple passes over the DGN file to rasterize each tile using the graphics hardware. Larger print sizes require more tiles, and thus take longer to print and produce larger plot file sizes. The output of a rasterized print is a print file consisting entirely of raster tiles. When printing a vector DGN file, a rasterized print file is usually larger than a non-rasterized print file. However, if the DGN file contains raster background images spanning the entire view, using the rasterized print mode may produce a smaller print file. When wireframe views are plotted in non-rasterized print mode , the product builds a display list containing the entire contents of the DGN file in order to perform sorting (in software) based on either 3D Z coordinates, 2D display priority, or pen table priority. For very dense drawings, or drawings containing large amounts of raster data, this display list can sometimes run the process out of virtual address space . In rasterized print mode, the sorting is performed by the graphics hardware. There is no need for a display list, and the system memory footprint is much smaller—especially when printing at large sizes. [/quote] If the above does not help, another thing you could try would be to print using the pdf.pltcfg driver to create a monochrome PDF file, or use Project Publisher to do that. Then print the PDF file to the printer using a PDF reader.
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