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Date:      Mon, 4 May 2020 15:10:58 -0400
From:      Kurt Hackenberg <kh@panix.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Brother HL-L2340D printer and lpd?
Message-ID:  <9992c5ca-fdac-7a62-b0e4-d33afaeb042d@panix.com>
In-Reply-To: <20200504085053.9bcf8d9d.freebsd@edvax.de>
References:  <20200503171259.GA48627@admin.sibptus.ru> <20200503192444.2d700440.freebsd@edvax.de> <ec10816a-15d1-e947-e032-9ad024c044d6@pinyon.org> <20200503185521.GB52059@admin.sibptus.ru> <20200504085053.9bcf8d9d.freebsd@edvax.de>

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On 2020-05-04 02:50, Polytropon wrote:

> However, it's really scary that a printer like the one mentioned
> here does not seem to understand ASCII text, even though it
> supports PCL standard (as shown on the specification page).


PCL was originally ASCII with proprietary escape sequences mixed in, but 
that spec page says that printer understands PCL 6, which apparently is 
a stack-based graphics language like PostScript, except binary. It's 
supposed to include backward compatibility with PCL 5, but doesn't 
always. So possibly what that printer understands has nothing to do with 
ASCII.

https://en.wikipedia.org/wiki/Printer_Command_Language

I don't like it either, but there is heavy pressure to hold down the 
cost of printers.



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