Subject: FW: [netatalk-admins] Large print jobs with papd...
From: Les Klein (les@psgroup.cix.co.uk)
Date: Wed Aug 05 1998 - 06:49:10 EDT
Hi everyone
I have not had much luck with this problem and my users are unhappy. They
are trying to print 1200 dpi bit maps in 4 colours so we are talking about
1200x1200x4 BYTES per square inch. (This is becuase there are 8 bits per
colour in these bitmaps).
I.e. 5.76MB per square inch. Since the data needs to be sent in Hexadecimal
(ASCII) and not binary this means 11.5MB per square inch. An 8x10 print is
80 square inches so we're talking almost 900MB of data!
I have tried to persuade them to use lower resolutions but they are not
happy about this. Anyway at 600 dpi an 8x10 still requires 200+MB of data
which just gets through using papd. Anything bigger than 8x10 and I hit the
256MB limit again.
I don't mind spending time looking into the problem if some kind soul will
tell me where to look or what to do. As I said before I can give the
ethernet packet traces if anyone wants them.
I think that netatalk is a superb suite of code and I really want to be able
to succeed with it.
Regards
Les Klein :-(
----------
From: "Les Klein" <les@psgroup.cix.co.uk>
To: netatalk <netatalk-admins@umich.edu>
Subject: [netatalk-admins] Large print jobs with papd...
Date: Thu, Jul 16, 1998, 4:55 pm
I have been unable to print files greater than 256MB via PAP from Macintosh
computers running OS8 and OS8.1 to my Linux box running netatalk 1.4.2b.
If the file is bigger than 256MB only 268,414,976 bytes get rec'd by the
Linux box and then the PAP protocol seems to breakdown in some way since no
more data gets transferred.
Printing the same files from these Mac's to an HP 2500 CP with PAP running
on the JetDirect card in the HP works fine so I am fairly sure the problem
is not at the Mac end of things.
Does anyone know anything about this?
Regards
Les.
PS: I can provide an EtherPeek packet trace if anyone needs one.
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