Digital BW, The Print

Can someone please explain to me (I have no traditional darkroom background)
what the issues are with using a colour process for B&W re a Lightjet.
People have mentioned that it must print to colour paper.  Why is there such
a difference between colour and B&W paper and if we are simply talking about
exposing light sensitive paper with a laser then why can't these machines
expose B&W paper?

> From: Mark Savoia <mark@...>
> Reply-To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Date: Sun, 25 Jul 2004 17:46:13 -0400
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] Fuji Pictography B&W green tint?!
> 
> No, it is called "not calibrated". If the printer is not self
> calibrated every day (not just when changing donor) it will be off
> color. There is always a very slight color cast no matter what you do,
> after all it is a color process on a color material. I should know, I
> own a printer. I wish Fuji would make a black only donor (similar to
> what Kodak did for their dye-sub printers years ago).
> Mark
>