[rescue] OT: LPR & 9100

Phil Stracchino alaric at caerllewys.net
Mon Sep 13 23:47:08 CDT 2004

On Tue, Sep 14, 2004 at 12:44:23AM -0400, Andrew Weiss wrote:
> On Sep 14, 2004, at 12:52 AM, Eric Webb wrote:
> >Can someone explain to me the name of the "protocol" involved in 
> >printing to
> >port 9100, usually on an HP JetDirect?
> I think it is raw bit raster.  It's basically whatever you're doing 
> shoved down the raw socket.  If that's Postscript for the Postscript on 
> a cartridge of a Laserjet III then that's what is sent.  I think it's 
> mainly raw PCL otherwise. (a bitstream?)

It is.  It's a raw bit-blast directly into the port and pray.
Interpretation is the printer's problem.

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