Maintainers for gutenprint are Debian Printing Group <debian-printing@lists.debian.org>.
You may want to refer to the following individual bug pages: escputil, gimp-gutenprint, gutenprint-doc, gutenprint-locales, libgutenprint-common, libgutenprint-dev, libgutenprint-doc, libgutenprint9, libgutenprintui2-2, libgutenprintui2-dev, printer-driver-gutenprint.
You might like to refer to the gutenprint package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.