Solució de problemes/Samsung scx-4500W

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    Revision as of 17:12, 21 July 2011 by Abella (talk | contribs) (Created page with "En l'arrencada immediatament s'ha de reconèixer la impressora i el fitxer de missatges ens ha de mostrar que el dispositiu s'ha trobat bé, i veure línies com:")

    Mike Cloaked <mike.cloaked at gmail.com> ha publicat el següent comentari respecte a la instal·lació sobre Fedora 14. Tingueu en compte algunes referències als directoris locals, i potser els haureu d'editar per adaptar-los al vostre sistema.


    Configuració de la impressora

    La següent tècnica de configuració funciona per a les últimes versions de Fedora des de F12 a F14.

    Descarregueu el conjunt de controladors i descomprimiu-los. Els controladors estan disponibles a la pàgina web de Samsung.

    No instal·leu els seus script(s). En el seu lloc poseu els dos fitxers següents del seu fitxer Unified Driver: Afegiu el fitxer rastertosamsungspl (des de cdroot/Linux/i386/at_root/usr/lib/cups/filter/rastertosamsungspl) a /usr/lib/cups/filter/
    i scx4500w.ppd (des de cdroot/Linux/noarch/at_opt/share/ppd/) també és necessari. Necessiteu entrar a /usr/share/cups/model/foomatic-db-ppds i crear el directori «samsung», i després

    gzip -c
    /path-to-my-scx4500w/scx4500w.ppd > samsung/scx4500w.ppd.gz

    Comproveu que els contextos de selinux dels nous fitxers corresponen amb els altres en aquest directori. Això és tot el que es necessiteu. A continuació connecteu-la al port usb de l'ordinador que està executant Fedora 12, 13 o 14, i engegueu la impressora, mentre veieu amb «tail» el fitxer de missatges.

    En l'arrencada immediatament s'ha de reconèixer la impressora i el fitxer de missatges ens ha de mostrar que el dispositiu s'ha trobat bé, i veure línies com:

    Nov 22 18:22:59 home1 kernel: [  336.170027] usb 1-1: new high speed USB device using ehci_hcd and address 4
    Nov 22 18:22:59 home1 kernel: [  336.284908] usb 1-1: New USB device found, idVendor=04e8, idProduct=342b
    Nov 22 18:22:59 home1 kernel: [  336.284911] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    Nov 22 18:22:59 home1 kernel: [  336.284914] usb 1-1: Product: SCX-4500W Series
     
    Nov 22 18:22:59 home1 kernel: [ 336.284917] usb 1-1: Manufacturer: Samsung Electronics Co., Ltd.

    A window pops up saying the printer has been added and offers to check the settings - all that needs changing is the paper size from the US Letter to A4 size and then run a test page - which should look perfect.

    Then print a system status page from the printer itself which should be fine, and then finally a test print from the main machine.

    Then check that the printer is visible to other machines on the LAN. If not then go to localhost:631 in a browser and ensure that the printer is shared to other machines.

    You can try to use the ethernet cable later, or change the wireless settings. I have to put it on the local network and given it a sensible ip address rather than the default 192. address that it comes with since my network is 10.0.0.x.

    Scanning works nicely but a couple of config tweaks are necessary.

    The printer is working, despite being an unsupported printer - and only needs the two files pulled from the Samsung linux application allows the printer to work nicely.


    Escanejar

    I have also now tested scanning on the scx-4500w. For Fedora F14 it was necessary to add under the Samsung section of the file /lib/udev/rules.d/65-libsane.rules:

    # Samsung SCX-4500W
     ATTRS{idVendor}=="04e8", ATTRS{idProduct}=="342b", ENV{libsane_matched}="yes"

    This was the only step needed. Once the machine was rebooted then scanning worked (eg via GIMP)

    Then I simply fired up the GIMP and asked it to scan - it found the scanner, and it worked without any further setup.

    So although I have only tested the printing and scanning capability on Fedora 14 via the usb port it does work very nicely.

    Yet to test:

    1. printer access via ethernet
    2. printer access via wireless
    3. scanner access via ether/wifi

    If anyone has done any other tests on this Samsung SCX-4500W and has step-by-step setup details I would be interested to hear the information. Either way this is a nice printer, and very quiet in operation, and does look pretty cool too!

    Accés a la xarxa

    The printer arrives set up with a default ip address of 192.0.0.192.

    In order to get the network interface working in my local LAN which is the in the ip range 10.0.x.x I initially booted up an old laptop and plugged in the crossover ethernet cable that comes with the printer. Then I stopped the NetworkManager service, and then started the "network" service.

    Next step is to become root and put the laptop on the same ip range as the printer by typing:

    ifconfig eth0 192.0.0.10 up

    Then start Firefox and go to the address 192.0.0.192 which immediately connects to the embedded management interface on the printer ( called "SyncThru" in Samsung parlance ) and displayed as a web page in Firefox.

    Then it is straightforward to find the network page and change the ip address to either a static ip in the range of my local LAN or let it continue to use DHCP. In my case once I had the MAC address of the printer network interface I could add that to my local dhcp server config and give the printer a local name.

    If you are not running your own dhcp server then it is probably easier to give it a static ip on the same range as your local LAN addresses.

    The networking is arranged so that if the ethernet cable is plugged in on the printer then it uses the wired interface and if not then it will use the wireless interface.

    So next go to the wireless interface page in SyncThru, and set up the required wireless settings for your own local wireless access point. In my case it uses WPA2 with AES encryption but your mileage may vary.

    As soon as I disconnected the ethernet cable the printer connected to my wireless access point and received its ip address via my dhcp server. Then firing up Firefox on my main machine and going to the printer ip address connected me to the embedded management interface again (SyncThru). From there the usual range of printer settings was accessible and also monitoring of page usage and toner use.

    Next to get printing via the network instead of via USB.

    1. In the main machine go to System -> Administration -> Printing -> New Printer
    2. Select Network Printer and the drop-down HP JetDirect (even though it isn't).
    3. Use the known printer IP in the "host" dialog and leave the default "Port 9100". Click Forward.
    4. Select ppd file (as in the sections above) and navigate to it - set the remaining parameters required. Change paper to A4.

    Then I sent a test page - and printed a mail item - which seemed fine apart from the page size being a touch too small for the writing at the top and bottom. That can no doubt be tweaked as necessary later. Then any other machine on the network can either use the printer via cups or set it as an independent route via the network as above.

    Since the wired cable had been removed this test print went via the wireless network to the scx-4500w. If the printer is wired to your local router via ethernet then the print goes via the wired router - you can't do wireless and wired at the same time.

    Escanejar mitjançant la xarxa

    L'escaneig mitjançant la xarxa no s'ha intentat en el moment d'escriure això.