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sane-pixma(5)		 SANE Scanner Access Now Easy		 sane-pixma(5)

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 fol‐
       lowing 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 respec‐
       tively.	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  applica‐
       ble  manufacturer  documentation, probably never available. However, we
       have tested it as well as we could, but it may not work in every situa‐
       tions. You will find an up-to-date status at the project homepage. (See
       below).	Users feedback is essential to help improve features and  per‐
       formances.

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 scan‐
	      image(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 scan‐
	      ner, 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 sub‐
       net 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 experi‐
	      mental 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 config‐
	      uration 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	 sepa‐
	      rator 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)
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