I CANNOT get InDesign to print this text actual black. I've been messing with the Appearance of black setting, I've tried to change the color model of the paragraph style (from 100% K to RGB 0, 0, 0), I've also tried to change this very piece of text's color explicitly with the color palette. I've also tried different settings of color management in ID's print dialog and the printer driver's dialogs... I've fiddled with the printer driver's print quality settings and resolution... to no avail.
Printing from basic text editors like OS X's TextEdit or TextWrangler does print full black characters.
So it must be a problem with ID's "color management", or "color messing around", I should say.
I am presently pulling my hair off my skull, I'd be happy if someone came up with a solution before they're all gone. :)