True PS drivers allow a color to be dialed in. In these cases you want the colors to match some standard of color apart from any monitor. Even from a consistent starting point not all monitors display colors exactly the same. However, if you’re a print shop you may not want what is on the paper to match your monitor. Not an exact match because one is RGB while the other is CMYK. Which makes sense considering PCL starts with a frame from your display. It might not always have been this way but in my experience PCL will produce a closer match to your monitor. Just as two different brands of monitors won’t exactly match colors, no two brands of printers have matching color output. Both drivers ultimately rely on paper and your printer’s process. In practice PS and PCL will vary in results. While in theory PS should have consistent results. Another advantage is PS files are print ready. The advantages of this are consistent color processing. This rasterized image will typically be larger than the original. PS on the other hand will build a rasterized image for the printer from the ground up. The disadvantages of this are consistency. This frame will be somewhat processed, smaller in size, and quickly processed by your printer. PCL grabs a frame from your display adapter and sends that to your printer.
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