JSI Tip 10538. The printing process exhibits a performance decrease because some EMF spool files are very large?

When you print a document that contains lots of raster data, the generated EMF (Enhanced MetaFile) spool file may become very large, resulting in printing process decreases in performance. This is more noticeable with higher resolutions.

NOTE: Microsoft Word documents and Adobe .pdf files may contain lots of raster data, causing a 1 MB documents to generate a 500 MB EMF spool file.

This behavior occurs because the GDI (Graphics Device Interface) does not compress EMF-related raster data.

To workaround this behavior, bypass EMF spooling:

1. Open the printer's Properties dialog.

2. Select the Advanced tab.

3. Check the Print directly to the printer radial button.

4. Press Apply and OK.

NOTE: When you Print directly to the printer, print processor features, like N-up, Watermark, Booklet printing, Driver collation, and Scale-to-fit, are disabled.

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