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NAME

       sane-pixma - SANE backend for Canon PIXMA Multi-Functions Printers
                    MP, MX, ImageCLASS and I-SENSYS series

DESCRIPTION

       The  sane-pixma  library  implements  a  SANE (Scanner Access Now Easy)
       backend that provides access  to  Canon  PIXMA  multi-function  devices
       (All-in-one  printers).   The backend implements both USB interface and
       Network LAN interface using  Canon’s  BJNP  protocol.   Currently,  the
       following models work with this backend:

              PIXMA MP140, MP150, MP160, MP170, MP180, MP190
              PIXMA MP210, MP220, MP240, MP250, MP260, MP270
              PIXMA MP450, MP460, MP470, MP480, MP490
              PIXMA MP500, MP510, MP520, MP530, MP540, MP550, MP560
              PIXMA MP600, MP600R, MP610, MP620, MP630, MP640, MP710
              PIXMA MP800, MP800R, MP810, MP830, MP960, MP970, MP980, MP990
              PIXMA MX300, MX310, MX330, MX700, MX850, MX860, MX7600
              MultiPASS MP700, MP730, PIXMA MP750 (no grayscale)
              ImageCLASS MF3110, MF3240, MF4010, MF4018, MF4120, MF4122
              ImageCLASS MF4140, MF4150, MF4270, MF4350d, MF4370dn, MF4380dn
              ImageCLASS MF4660, MF4690, MF5770, D480
              I-SENSYS MF4320d, MF4330d
              CanoScan 8800F

       The  following  models are not well tested and/or the scanner sometimes
       hangs and must be switched off and on.

              SmartBase MP360, MP370, MP390
              MultiPASS PIXMA MP760, PIXMA MP780

       The following models may use the same Pixma protocol  as  those  listed
       above,  but  have  not  yet  been  reported  to work (or not). They are
       declared in the backend so that  they  get  recognized  and  activated.
       Feedback in the Sane-dev mailing list welcome.

              PIXMA MP740
              PIXMA MX320
              ImageCLASS MF5630, MF5650, MF5730, MF5750, MF8170c

       The backend supports:

              *  resolutions  of  75,  150, 300, 600, 1200, 2400, and 4800 DPI
              (some maybe buggy),
              * color and grayscale mode,
              * a custom gamma table,
              * Automatic Document Feeder, Simplex and Duplex.
              * Transparency Unit, 24 or 48 bits depth.

       The device name for USB devices is  in  the  form  pixma:xxxxyyyy_zzzzz
       where  x,  y  and  z  are  vendor  ID,  product  ID  and  serial number
       respectively.  Example: pixma:04A91709_123456 is a MP150.

       Device names for BJNP devices is in  the  form  pixma:aaaa_bbbbb  where
       aaaa is the scanners model and bbbb is the hostname or ip-adress.

       This  backend, based on cloning original Canon drivers protocols, is in
       a  production  stage.  Designed  has  been  carried  out  without   any
       applicable   manufacturer   documentation,  probably  never  available.
       However, we have tested it as well as we could, but it may not work  in
       every  situations.  You  will  find an up-to-date status at the project
       homepage. (See below).  Users feedback is  essential  to  help  improve
       features and performances.

OPTIONS

       Besides "well-known" options (e.g. resolution, mode etc.) pixma backend
       also provides the following  options  for  button  handling,  i.e.  the
       options might change in the future.
       Button  scan  is disabled on MAC OS X due to darwin libusb not handling
       timeouts in usb interrupt reads.

       button-controlled
              This option can be  used  in  combination  with  scanadf(1)  and
              scanimage(1)  in  batch  mode, for example when you want to scan
              many photos or multiple-page documents. If it is  enabled  (i.e.
              is  set  to  true  or  yes), the backend waits before every scan
              until the user presses the "SCAN"  button  (for  MP150)  or  the
              color-scan button (for other models). Just put the first page in
              the scanner, press the button, then the  next  page,  press  the
              button and so on. When you finished, press the gray-scan button.
              (For MP150 you have to stop the frontend by pressing Ctrl-C  for
              example.)

       button-update button-1 button-2
              These  options  are  interesting for developers. To check button
              status: (1) set button-1 and button-2 to zero, (2)  set  button-
              update  (Its  type  is  SANE_TYPE_BUTTON.), (3) get button-1 and
              button-2.  If the result is not zero, the  corresponding  button
              was pressed.

FILES

       /usr/lib/sane/libsane-pixma.a
              The static library implementing this backend.

       /usr/lib/sane/libsane-pixma.so
              The shared library implementing this backend (present on systems
              that support dynamic loading).

       /etc/sane.d/pixma.conf
              The  backend  configuration  file  (see  also   description   of
              SANE_CONFIG_DIR  below).  The files contains an optional list of
              scanners. Normally only scanners that can not  be  auto-detected
              because  they are on a different subnet shall be listed here. If
              your OS does not allow enumeration of interfaces (i.e.  it  does
              not  support the getifaddrs() function) you may need to add your
              scanner here as well.  Scanners shall be listed as:

              bjnp://<host>
              where host is the hostname or IP address of  the  scanner,  e.g.
              bjnp://10.0.1.4  or  bjnp://myscanner.mydomain.org.  Define each
              scanner on a new line.

USB SUPPORT

       USB scanners will be auto-detected and require no configuration.

NETWORKING SUPPORT

       The pixma backend supports network scanners using the so  called  Canon
       BJNP  protocol.   Configuration  is  normally  not required.  The pixma
       backend will auto-detect your scanner if it is within the  same  subnet
       as your computer if your OS does support this.

       If  your  scanner can not be auto-detected, you can add it to the pixma
       configuration file (see above).

FIREWALLING FOR NETWORKED SCANNERS

       The sane pixma backend communicates with port 8612 on the  scanner.  So
       you  will  have  to  allow  outgoing traffic TO port 8612 on the common
       subnet for scanning.

       Scanner detection is slightly more complicated. The pixma backend sends
       a  broadcast on all direct connected subnets it can find (provided your
       OS allows for enumeration of all interfaces).  The  broadcast  is  sent
       FROM port 8612 TO port 8612 on the broadcast address of each interface.
       The outgoing packets will be  allowed  by  the  rule  described  above.
       Responses  from the scanner are sent back to the computer TO port 8612.
       Connection tracking however does not see a match as the  response  does
       not  come from the broadcast address but from the scanners own address.
       You will therefore have to allow incoming packets TO port 8612 on  your
       computer.

       So  in  short:  open the firewall for all traffic from your computer to
       port 8612 AND to port 8612 to your computer.

       With the firewall rules above there is no need to add  the  scanner  to
       the  pixma.conf  file,  unless  the scanner is on a network that is not
       directly connected to your computer.

ENVIRONMENT

       SANE_DEBUG_PIXMA
              If the library was compiled with  debug  support  enabled,  this
              environment  variable controls the debug level for this backend.
              Higher value increases the verbosity.

              0  print nothing (default)
              1  print error and warning messages (recommended)
              2  print informational messages
              3  print debug-level messages
              11 dump USB/BJNP traffics
              21 full dump USB/BJNP traffic

       PIXMA_EXPERIMENT
              Setting  to  a  non-zero  value  will  enable  the  support  for
              experimental  models.   You  should also set SANE_DEBUG_PIXMA to
              11.

       SANE_CONFIG_DIR
              This environment variable specifies the list of directories that
              may contain the configuration file.  Under UNIX, the directories
              are separated by a colon (‘:’), under OS/2, they  are  separated
              by  a  semi-colon  (‘;’).   If  this  variable  is  not set, the
              configuration file  is  searched  in  two  default  directories:
              first,   the   current  working  directory  (".")  and  then  in
              /etc/sane.d.  If the value of the environment variable ends with
              the  directory separator character, then the default directories
              are searched after the explicitly  specified  directories.   For
              example,  setting SANE_CONFIG_DIR to "/tmp/config:" would result
              in  directories  "tmp/config",  ".",  and  "/etc/sane.d"   being
              searched (in this order).

SEE ALSO

       sane(7),       sane-dll(5),       http://home.arcor.de/wittawat/pixma/,
       http://mp610.blogspot.com/

       In case of trouble with a recent Pixma model, try the latest  code  for
       the pixma backend, available in the Sane git repository at:
       http://git.debian.org/?p=sane/sane-backends.git

       You can also post into the Sane-devel mailing list for support.

AUTHORS

       Wittawat Yamwong, Nicolas Martin, Dennis Lou, Louis Lagendijk

       We  would  like to thank all testers and helpers. Without them we could
       not be able to write subdrivers for models we don’t have. See also  the
       project homepage.

                                  8 Jan 2010                     sane-pixma(5)