Word is probably using a printer font, which comes in specific sizes that work well on your printer. Manager uses the in-built web browser printer engine, which by default uses scalable fonts. If your printer needs to scale a 10-point font by 97.275% percent, say, to fit the paper size, it’s going to come out jaggedy because the dots aren’t small enough to scale evenly.
Try turning off scaling. In Manager, right-click on something printable, select “Print Preview,” and then click the gear icon in the print-preview toolbar. In the Page Setup dialog, try turning “Enable Shrink-to-Fit” off and see if that makes any difference. Also make sure the print scaling in the Print Preview is set to 100%.
Also try playing with the default fonts used for printing. Open Internet Explorer. Override document fonts by selecting the “Ignore fonts specified in webpages” option in Tools > Internet Options > General > Accessibility. Then try selecting different fonts in Tools > Internet Options > General > Fonts (try simple fonts, like Arial and Courier).
Finally, if you’ve been printing directly from Manager, try instead printing to a PDF file (google Cute PDF and install it if you don’t have a PDF printer driver) and see if that helps at all. Or vice versa.
If none of that works, consider getting a laser printer.