sslug-teknik team mailing list archive

[Jon Svejgaard <jon@xxxxxx>]

Atte André Jensen wrote:
> Hejsa
>
> Jeg kunne godt finde på at springe på nævnte printer fra Elgiganten på 
> mandag, hvis den ellers vil virke under linux. Er der nogen som kan 
> be/afkræfte dette? Har google't lidt, men synes ikke rigtig der kom 
> noget, hvilket jeg enten tolker som at det er et rimeligt nyt produkt 
> (ihvertfald under dét navn) eller at den ikke virker under linux.
Det er en GDI printer. DVS chancen for at du kan gennemføre projektet er 
lille.

Her er et klip fra siden
	http://portal.suse.com/sdb/en/1998/06/ke_printer-gdi.html

som effektivt burde tage modet fra dig. Forelsk dig i en postscript 
printer i stedet.

<QUOTE>
About GDI Printers

Printer drivers for Linux are seldom developed by the printer's 
manufacturer. Therefore, the printer must be accessible via a published 
standard protocol, like the standard printer languages PostScript, 
ESC/P, and HP PCL (but not HP PPA). See Purchase of Printers and 
Compatibility

If the printer's manufacturer does not provide the printer with a 
standard printer language support but uses a proprietary protocol, this 
printer is a GDI printer. Such printers only work under the operating 
systems for which the manufacturer provides driver support.

GDI is an API developed by Microsoft. The real problem is not the API 
itself, but rather that GDI printers are exclusively accessible via a 
proprietary protocol. Therefore, GDI printers should actually be called 
"printers exclusively accessible via a proprietary protocol".

There is a special type of printer that "understands" rudimentary 
elements of a standard printer language only (i.e., those commands 
necessary for the output of raster graphic data). This kind of printer 
can sometimes be deployed in an ordinary way, since many Ghostscript 
drivers merely use the commands required for the output of raster 
graphic data. Needless to say, this procedure does not allow direct 
ASCII text output on the printer. However, Ghostscript is interposed by 
default anyway.

These printers may pose a problem if they must be previously switched to 
a special mode with specific control sequences. This can only be done 
with a specially adapted Ghostscript driver. Since this is not a 
standard protocol, these printers belong to the GDI printers.
</QUOTE>

MVH

Jón Svejgaard
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