🚀 go-pugleaf

I'm a veteran of Dick Rubenstein's Digital Typography course.  I remember his
discussion of the interaction of device physics (electrostatics) and write-
white and write-black devices.  How can anyone design low level hints without
knowing if the the device is write-white or write-black?  And is there any
information in systemdict (PostScript) to know which way a laser printer is
set up?

Exp. Note: quoting Rebenstein here:
	"One striking difference among laser printers is that some write a
	black image on the drum during formation of the image, and others
	write the white part of the image.  Because of the way the toner is
	attaracted to the resulting charged image, one image will be bolder 
	than the other, even thought _exactly_the_same_array_of_dots_ is
	specified.  A font designed for one printer may give dramatically
	different results on another..."
--
Henry Troup - BNR owns but does not share my opinions | 21 years in Canada...
uunet!bnrgate!hwt%bwdlh490 HWT@BNR.CA 613-765-2337    |