@Ahau:
Sorry, if I am repeating myself. I do not know in fact what you read and what you did not read about my writings on printing and scanning. I am just trying to give constructive feedback as much as I can. I just want to follow you and be helpful. I understand that some of the packages I proposed were quite heavy, and if you found some turnaround, I will be the first on to be happy.
I am happy to see that you give some emphasis on brother printers. However, they have a small share of the market compared to the other brands. However, after working with hp printers for some time, I found brother printers with a better quality-price value and it seems to be more fast and robust. I peculiarly like the fact that toner and drums come separately.
Concerning brother printers, gutenprint (which is quite light) gives a good coverage, I would say that maybe working with the openprinting download site the other brother printers might be covered but I am not sure. For sure there is also the generic printer option that seems to work very efficiently for more recent brother printers. But I am not so sure I would have to eye scan the openprinting site to see what they do cover.
Converting rpm or deb packages works just fine. Though, if I remember the 32 bit and 64 bit have to be placed differently in the folder tree.
I just found gutenprint and ppd more useful as you do not have to convert them into modules. They work both with 32 and 64 architectures, but as you said with the compat library. For sure, thru the brother site everything is there in fhe form of deb or rpm. Maybe there is a way to automate fetching and transforming these drivers into porteus or slackware drivers.
When you are talking about converting deb packages are you talking about the cups drivers on the brother site? See:
http://welcome.solutions.brother.com/bs ... d_prn.html
The ppds are installed in /etc/cups/ppd folder using gutenprint thru CUPS interface or system-config-printer. It seems. That is where I found the ones I had installed. Alas brother says on its site that not all the brother printers are ppd covered.
have multiple ways to set up a printer (cups and system-config-printer), multiple ways to set up a scanner (xsane and simple-scan),
These are just interfaces, some at first glance more intuitive: system-config-printer and simple scan.
several printing methods for some models (proprietary drivers and ppd's)
These methods are there for now. But in the near future they should be replaced by pdf printing, and it seems that this has already begun:
http://www.linuxfoundation.org/collabor ... enprinting
PDF as standard print job format is completely implemented on Debian and Ubuntu and will soon get upstream standard
From Ubuntu Oneiric (11.10, released mid-October) on all important desktop applications (GTK/GNOME, Qt/KDE, LibreOffice/OpenOffice.org, Firefox, Thunderbird, ...) send print jobs in PDF and not in PostScript any more by default. In addition, a complete CUPS filter chain to process print jobs in PDF is available and used by Debian and Ubuntu.
CUPS author Mike Sweet/Apple have decided to not include the Linux-specific CUPS filters in the upstream CUPS source any more and we have agreed to maintain them at OpenPrinting. Here we will do some clean-up and discontinue the PostScript-centric workflow in favor of the PDF workflow, meaning that the upstream standard for CUPS under Linux (using CUPS plus our filter package) will be the PDF-based job processing, letting every non-PDF input be converted to PDF first, page management options being applied by a pdftopdf filter and Ghostscript being called with PDF as input.
Having this workflow we ask all driver developers kindly to not create any PPDs/drivers for non-Postscript printers which require exclusively PostScript. PPD files should at least accept PDF or CUPS Raster now. See also our driver design/packaging page.
More info on our page about the PDF printing workflow.
I will have a look later on your:
http://pkgs.org/search/?keyword=brother
However balazarbrothers_1.0~rc1-4.2_all.deb seems at first glance to be a game.
Sorry for using so many words to get my thoughts thru. I am following you and will be happy to not be in your way. Writing on this thread with brother printers was mostly a way to revive the thread and stimulate other users to comment on their printers.

Prendre son temps, profiter de celui qui passe.