See the following series of articles prepared by fellow MVP Jonathon West
Controlling the Printer from Word VBA
Part 1: Using VBA to Select the Paper Tray
http://pubs.logicalexpressions.com/Pub0009/LPMArticle.asp?ID=101
Controlling the Printer from Word VBA
Part 2: Using VBA to control Duplex, Color Mode and Print Quality
http://pubs.logicalexpressions.com/Pub0009/LPMArticle.asp?ID=116
Controlling the Printer from Word VBA
Part 3: Dealing with Different Paper Sizes
http://pubs.logicalexpressions.com/Pub0009/LPMArticle.asp?ID=132
Controlling the Printer from Word VBA
Part 4: Getting printer driver details
http://pubs.logicalexpressions.com/Pub0009/LPMArticle.asp?ID=183
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Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP