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Date:      Fri, 26 Aug 2011 07:30:20 +0200
From:      Polytropon <freebsd@edvax.de>
To:        Warren Block <wblock@wonkity.com>
Cc:        "Kruppa, Peter Ulrich" <ulrich@pukruppa.de>, freebsd-questions@freebsd.org
Subject:   Re: Printing from Opera
Message-ID:  <20110826073020.6edf4e97.freebsd@edvax.de>
In-Reply-To: <alpine.BSF.2.00.1108250641320.5142@wonkity.com>
References:  <20110824095841.0f614b67.freebsd@edvax.de> <4E54E2C5.2030408@pukruppa.de> <20110824171956.56654528.freebsd@edvax.de> <4E55E54E.6000307@pukruppa.de> <20110825080941.dcb7c598.freebsd@edvax.de> <4E55F265.1060008@pukruppa.de> <20110825092252.fa8fd1f1.freebsd@edvax.de> <alpine.BSF.2.00.1108250641320.5142@wonkity.com>

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Again a system freeze, so I have to write this message
for a second time. But I think it's worth it as I made
some interesting discoveries. :-)

On Thu, 25 Aug 2011 06:43:01 -0600 (MDT), Warren Block wrote:
> If the print job has a PostScript error, it would be received and then 
> just disappear.  Unless you have the printer set to "print PostScript 
> errors", anyway.  Watch the printer lights for a quick flash when (if) 
> the job is actually sent.

I've tried that from the google search page (no query
entered) and could see the display "JOBVERARBEITUNG"
(job processing), as well as a short flashing of the
"Daten" (data) LED. Nothing got printed, but the
printer seemed to receive data. So I thought I should
investigate the data.

In Opera, I selected "Print to file" and loaded the
PS file into gs. It had a black square across the
page, as well as scroll bars. Scroll bars? In the PS
output? Hmmm... sounds stupid!

Printing this file from within gs (which pipes it to
lpr), as well as directly printing it with lpr, resulted
in the job appearing + disappearing.

Okay, I thought it might have something to do with the
web page printed... so I opened a simple web page (no
images, just text).

IT GOT PRINTED!!!

So is this local file vs. online file?

I opened http://www.freebsd.org/doc/handbook/LEGALNOTICE.html
and printed it. It also got printed, but with a black bar
across the rear side of the second page. There also were
grey bars at the margins of the text (but I could remove
them by manually Alt+P = Preferencs, Webpages, Background
Color set to white).

The output was like this (2nd page):

	Corel and WordPerfect are trademarks or registered
	trademarks of Corel Corporation and/or its 
	subsidiaries in Canada, the United States and/or
	##################################################
	##################################################
	##################################################
	##################################################

And then printing continued normally on the 3rd page (2nd
sheet) with

	SAP, R/3, and mySAP are trademarks or registered 
	trademarks of SAP AG in Germany and in several other 
	countries all over the world.

What is this selective printing? Or am I not allowed to
print portions of the copyright? :-)

Whenever I try to print from Opera, I have to manually select
the only selectable printer with the mouse. What about the
good old "Ctrl+P Enter"? Already DEPRECATED? Not "modern"
enough?

Alternative: Firefox. I have version 6.0.1 installed. When
I opened the google search page, it got printed, but without
the colored Google text. Other web pages with images have
the images printed.

And suddenly, the system froze. I had to switch it off (with
the _real_ power switch on the back).

The "freeze virus" has jumped from Sylpheed to Firefox.

Summary:

PS generation seems to be different among browsers. Sometimes
something gets generated that the printer cannot print.

Idea:

I could configure CUPS _not_ to use PS, but instead convert
it to PCL and then send it to the printer, maybe this can
bring different results.



(Note that my last message contained some more details, e. g.
different job sizes when printing the same page from Opera
and from Firefox, but due to the reboot the message was lost.)




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...



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