Postscript printer drivers

Question: Do I need to install postscript printer drivers on our school computers for printing?

The IT Guy says:
For a good overview on Postscript printing, refer to "PS, Do I Really Need You?". As described, for most text and simple graphics, PCL printer drivers are adequate and postscript drivers are not required.

If your computer users are printing complex graphics, however, postscript printer drivers are probably a must. The answer to this question probably depends on the software with which users are printing, and the complexity of the files they are printing.

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