🚀 go-pugleaf

Each time a new printer comes around, we have problems with tex.ps which
widely supposes that the printer is a standard Laser Writer. The first
problem arises when we want to use the function

\@letter
  { letter initmatrix
    72 Resolution div dup neg scale          % set scaling to 1.
...    
  } def

A non Laser Writer printer do not know about letter. One can simply comment 
out the first line and see what happens. Usually, the text comes out right, 
except that it is not at a right place in the page. So we must know what
formats of text are recognized by the printer (in my case, this is an
Agfa 3400PS).

Let's come to the problem now. Is there any standard postscript command
that, given a printer, gives the functions implemented in it or the formats
it knows about?

Any comment or advice will be greatly appreciated,

F. Morain

Institut National de Recherche
en Informatique et en Automatique (INRIA),
Domaine de Voluceau, B. P. 105
78153 LE CHESNAY CEDEX (France)

morain@inria.inria.fr