The Gentoo Printing How-To seems to be oriented mostly towards USB printers; when configuring a parallel printer the instructions should describe how the kernel needs both parallel port support configured (which the documentation does describe) and also enabling "Character-Devices-->Parallel Printer Support" (which the documentation does NOT describe). Without the latter, it is very frustrating trying to determine why /dev/lp0 is not being created and how to get it created.
see attachment to bug #22244
Reviewed attachment to bug #22244---looks good. Thanks!
finally online :)