My printer has the latest driver and works great with other programs (Illustrator, InDesign, AutoCAD) and even works great with Word 2007--except for one document. Originally this document is a size 7 x 10 (and it printed fine), but I changed that to 5 x 7 with half inch margins all around. Now it prints a mini-page of about 2 x 3. It is a perfect print, but just chipmunk sized. Increasing the margins to three-quarters all around does not help. Resizing it to original size or even 8.5 x 11 allows it to print normal, but I need the smaller 5 x 7 size. As a final note, all of the above mentioned printing is done on 8.5 x 11 paper. I am using Word and a desktop printer with letter size paper for draft purposes, but the final product will be a 5 x 7 booklet.
Try exporting your document to a PDF and print that. Some printers and other services have a hard time displaying (or for that matter, printing) margins changes and such.
I did find an answer to the problem, but not to the glitch source. The trick is in printer page setup (not Word page setup). Seems my Word document tells my printer to ignore its size setting. Even though the printer setting is for "letter", I select an arbitrary other size, then re-select "letter." Now my 5 x 7 document prints actual 5 x 7 on a 8.5 x 11 paper. This procedure has to be done only on the first printing of the document: thereafter the setting holds. Note that I only have a few Word documents with this problem, and they all are of size 5 x 7. Thanks for all of the concerned help.
If a particular word doc starts printing at 50% of intended, and other docs print ok- MS word is corrupted. I worked for days on this problem troubleshooting, etc. Solution; I was going to reinstall MS Office Pro from my saved download file and when I opened the file it showed several options, one was "repair". this solved the problem of "phantom" downsizing when printing. Other option is to reinstall MS Office. Hope this helps.