🚀 go-pugleaf

I asked a few days ago concerning the problem that when Dayton
font is used to get special Greek letters, these letters is printed
as integral signs on a LaserWriter. I have got several replies
through the net. I tried turn-off 'Font Substitution'; I tried
using different systems(6.0.3, 6.0.4 and 6.0.7). I tried advoid
font conflicts by removing all removable fonts from the system.
But the problem persists.

I know I can get these special Greek letters from other applications
or fonts. But out of curiosity, I want to know why this particular
font can not be printed correctly on a LaserWriter while other
fonts that I have tried, if 'unlimited downloadable fonts in a document'
is selected, can be printed correctly.

Here is a little more description about Dayton font. 10, 12 and 14 point
Dayton font are available in the system. Other sizes of Dayton font 
are supposed to be scaled from some other sizes or fonts. But I can see that
9 point Dayton font represents integral signs on the screen. 10 point
Dayton font represents regular English alphabet on the screen. 
12 point Dayton font represents regular Greek letters on the screen.
Different sizes of Dayton font represent different symbols. And 
the problem is that although different sizes provide different
symbols on the screen, all these symbols are printed according 
to the screen format of the 9 point Dayton font. That is, every symbol
has been printed as integral sign scaled from the 9 point font.
The worst thing is, the 9 point Dayton font is not in the system,
it is created from somewhere else, which I don't know!

What is wrong? Any help is appreciated. Thanks in advance!

Li