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This fails to build with the following error.

configure: error: cannot find required auxiliary files: compile
make: *** [Makefile:290: config.status] Error 1
==> ERROR: A failure occurred in build().
    Aborting...
:: Packages failed to build: epson-inkjet-printer-201212w-1.0.0-9

I found a solution in this forum post https://bbs.archlinux.org/viewtopic.php?id=262886 which says to add automake --add-missing before chmod +x configure.

There's a breakage if this is built with Clang due to Clang's stricter -Wreturn-type flag which reveals a `return 0;` from a function that's supposed to return void. I have a patch that can be applied to the AUR repo @ https://gist.github.com/kylemanna/d9d249c2368481545496827af7687f4d Direct link to patch: https://gist.githubusercontent.com/kylemanna/d9d249c2368481545496827af7687f4d/raw/69137cf869fa362fb5d12ab50d66338e1b7ea129/0001-filter-Fix-clang-error-with-debug_msg-return-void.patch

Nevermind, it seems that my wifi router sometimes chooses a different IP address. Not the driver's fault, sorry for the noise.

I have a WF-3520 and most of the times I try to print I get the following error in CUPS: Processing - "The printer is unreachable at this time." Printing via the cloud works fine though.

There should be no difference if you add --enable-debug before or after --prefix. But I don't know why there is no "epson-inkjet-printer-filter.txt" file. Maybe the file has another name? I didn't checked every driver for that file. I looked into the sources... is there one of these files?? debuglog.h:50: #define LOGFILENAME "/tmp/"PACKAGE_NAME".txt" err.h:36:#define DEBUG_PATH "/tmp/eps_debug.txt" err.h:37:#define EPS_DEBUG_PATH2 "/tmp/esp_time.txt" Yes, you should rebuild your driver because it WOULD print "useless" debug information.

UPDATE: It seems to be working now. Scrutinizing the error_log via cups web server utility I noticed ghostscript was missing. I installed that and the test page printed and I was then able to print from gedit, as well. That being said, I still hope to understand the whole "--enable-debug" thing and why I never got the '/tmp/epson-inkjet-printer-filter.txt' file. Furthermore, do I need to reinstall the driver without the "--enable-debug" flag now that it is seemingly working? As far as I can tell, my use of that flag did not change anything. As an aside for others that may be struggling to install a network printer, ufw blocks discovery of the printer despite rules in place to allow communication on the local network. Previously it had prevented the discovery of my media server or I may have been stumped quite a lot longer when cups couldn't find my printer. 'ufw disable' allows discovery and hopefully still works after 'ufw enable'. Otherwise one may require a special iptables rule to allow packets before ufw drops them. Perhaps something like: 'iptables -I ufw-before-input -s <printer ip address> -d <computer ip address> -j ACCEPT'.

Hehe, sorry for the weirdness! :D Anyway, I had noticed that in the PKGBUILD, but I'm not sure I understand how to implement it correctly. I'm quite new to arch (liking it a lot so far). After reading your comment I tried uninstalling the driver (pacman -Rs epson...), deleted the previous folder, and redid the installation. Only this time before 'makepkg' I edited the PKGBUILD to add the '--enable-debug'. The original was like: "# if you have runtime problems: add "--enable-debug" and look into /tmp/epson-inkjet-printer-filter.txt ./configure LDFLAGS="$LDFLAGS -Wl,--no-as-needed" --prefix=/opt/$pkgname make" I tried adding '--enable-debug' after '--prefix=/opt/$pkgname', I tried adding it before 'LDFLAGS=...', and I tried adding it after '--no-as-needed'. The one after '--no-as-needed' would not complete the 'makepkg' process. The other two went as smoothly as before, I re-added the printer in cups, and I ran into the same problem as before. When I checked the /tmp for epson-inkjet-printer.txt, it was not there. I suspect I'm fundamentally misunderstanding something. Any idea what I'm doing wrong? Thanks for the assistance!

Well, that's a weird comment. ;-) Did you try this one in your PKGBUILD? ---> if you have runtime problems: add "--enable-debug" and look into /tmp/epson-inkjet-printer-filter.txt

Also, fwiw, I'm trying to set up the WF-3540 for network printing.

Does not work. Everything seems okay until you try to print and get "stopped 'filter failed'". Then you check the error_log and find: "(/opt/epson-inkjet-printer-201212w/cups/lib/filter/epson_inkjet_printer_filter) stopped with status 1" and "Job stopped due to filter errors; please consult the error_log file for details". Then, to your dismay, you Google only to find that this is one of those particularly annoying random problems that seems to effect people on various distros going back for years. The proposed solutions are about as varied as the people experiencing the problems. Currently, I am at a loss and have no idea what to try next. If I sort it out I'll post back. Otherwise, I'm hoping someone else can point me in the right direction. Basic printing should not be this complicated to set up.