Free source of printable star charts in the format of the Millennium Star Atlas?
OK, I think that I've found the answer - it looks like Cartes du Ciel will do what I'm looking for (although I haven't yet figured out the simplest workflow).

Click on the icon for Equatorial Coordinates

Then click on the icon for 'configure the program'

Under the Colour tab, click on 'black on white'

Under the Lines tab, make sure that 'show grid label' and 'show coordinates grid - line' are checked.

Zoom in to the desired magnification

Click on printer icon