sane-pixma.5



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


NAME

       sane-pixma  -  SANE  backend  for  Canon  Multi-Function  Printers  and
       CanoScan Scanners


DESCRIPTION

       The sane-pixma library implements a  SANE  (Scanner  Access  Now  Easy)
       backend  that  provides access to Canon PIXMA / i-SENSYS / imageCLASS /
       imageRUNNER multi-function devices (All-in-one printers) and the  Canon
       CanoScan  Flatbed/TPU  scanners.   The  backend implements both the USB
       interface and network interface (using Canon's  BJNP  and  MFNP  proto-
       cols).  The  network  interface  supports scanners over IPv4 as well as
       IPv6 (MFNP over IPv6 is untested).

       Currently, the following models work with this backend:

              PIXMA E410, E510
              PIXMA G2000, G2010, G2100, G4000
              PIXMA MG2100, MG2200, MG2400, MG2500, MG2900, MG3000, MG3100
              PIXMA MG3200, MG3500, MG3600, MG4200, MG5100, MG5200, MG5300
              PIXMA MG5400, MG5500, MG5600, MG5700, MG6100, MG6200, MG6300
              PIXMA MG6400, MG7100, MG7500, MG7700, MG8200
              PIXMA MP140, MP150, MP160, MP170, MP180, MP190
              PIXMA MP210, MP220, MP230, MP240, MP250, MP260, MP270, MP280
              PIXMA MP360, MP370, MP390
              PIXMA MP450, MP460, MP470, MP480, MP490, MP495
              PIXMA MP500, MP510, MP520, MP530, MP540, MP550, MP560
              PIXMA MP600, MP600R, MP610, MP620, MP630, MP640
              PIXMA MP700, MP710, MP730, PIXMA MP750 (no grayscale)
              PIXMA MP800, MP800R, MP810, MP830
              PIXMA MP960, MP970, MP980, MP990
              PIXMA MX300, MX310, MX330, MX340, MX350, MX360, MX370
              PIXMA MX410, MX420, MX470, MX510, MX520, MX530, MX700, MX720
              PIXMA MX850, MX860, MX870, MX882, MX885, MX890, MX920, MX7600
              PIXMA TR4500
              PIXMA TS3100, TS3300, TS5000, TS5100, TS6100, TS6200, TS8000
              PIXMA TS8200
              PIXUS MP10
              imageCLASS MF634Cdw, MF733Cdw
              imageCLASS MF3110, MF3240, MF4010, MF4018
              imageCLASS MF4120, MF4122, MF4140, MF4150
              imageCLASS MF4270, MF4350d, MF4370dn, MF4380dn
              imageCLASS MF4410, MF4430, MF4570dw, MF4660, MF4690
              imageCLASS MF5730, MF5770, MF6550, MPC200
              imageCLASS D420, D480, D530, D570
              i-SENSYS MF210, MF230, MF240, MF440, MF620, MF630, MF640
              i-SENSYS MF645C, MF730, MF731/733, MF741/743
              i-SENSYS MF3010, MF4320d, MF4330d, MF4500, MF4700, MF4800
              i-SENSYS MF6100, MF8030, MF8200C, MF8300
              imageRUNNER 1020/1024/1025, 1133
              CanoScan 8800F, 9000F, 9000F Mark II
              CanoScan LiDE 300, 400
              MAXIFY MB2000, MB2100, MB2300, MB2700, MB5000, MB5100, MB5400

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

              PIXMA MP760, MP770, MP780, MP790

       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-devel mailing list welcome.

              PIXMA E400, E460, E470, E480, E500, E560, E600, E610
              PIXMA E3100, E3300, E4200
              PIXMA MG4100, MG6500, MG6600, MG6800, MG6900, MG8100
              PIXMA MP375R, MP493, MP740
              PIXMA MX320, MX390, MX430, MX450, MX490, MX710
              PIXMA G3000, G3010, G4010, G6000, G6080, G7000, GM4000
              PIXMA TR7500, TR7530, TR8500, TR8530, TR8580, TR9530
              PIXMA TS6000, TS6130, TS6180, TS6230, TS6280, TS6300, TS6330
              PIXMA TS6380, TS7330, TS8100, TS8130, TS8180, TS8230, TS8280
              PIXMA TS8300, TS8330, TS8380, TS9000, TS9100, TS9180, TS9500
              PIXMA TS9580
              PIXUS MP5, XK50, XK60, XK70, XK80
              imageCLASS MF720, MF810/820, MF5630, MF5650, MF5750, MF8170c
              imageCLASS MPC190, D550
              i-SENSYS MF110, MF220, MF260, MF410, MF420, MF510, MF520, MF740
              i-SENSYS MF5880dn, MF5900, MF6680dn, MF8500C
              MAXIFY MB5300

       The following models may use partly the same Pixma  protocol  as  other
       devices  listed  above, but may still need some work. They are declared
       in the backend  as  experimental  and  need  the  environment  variable
       PIXMA_EXPERIMENT=1  to  get  recognized  and  activated. Snoop logs are
       required to further investigate, please contact the sane-devel  mailing
       list.

              -- none --

       The backend supports:

              *  resolutions  of 75, 150, 300, 600, 1200, 2400, 4800, and 9600
              DPI (some maybe buggy),
              * color and grayscale mode, as well as lineart on  certain  mod-
              els,
              * a custom gamma table,
              * Automatic Document Feeder, Simplex and Duplex.
              *  Transparency  Unit,  24 or 48 bits depth. Infrared channel on
              certain models.

       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/MFNP devices  is  in  the  form  pixma:aaaa_bbbbb
       where aaaa is the scanners model and bbbb is the hostname or ip-adress.

       Example:  pixma:MF4800_192.168.1.45  is  a MF4800 Series multi-function
       peripheral.

       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 all 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, i.e. the options might change in
       the future.
       The button status can be polled i.e. with 'scanimage -A'.
       Button scan is disabled on MAC OS X due to darwin libusb  not  handling
       timeouts  in  usb  interrupt reads, but may work when using the network
       protocol.

       adf-wait
              This option enables and sets the time in seconds waiting  for  a
              document inserted into the Automatic Document Feeder.  The maxi-
              mum allowed waiting time is 3600 sec (= 1 hour).

       button-controlled
              This option can be used by  applications  (like  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 (deprecated)
              (write  only)  In the past this option was required to be set to
              force reading of the button status for  button-1  and  button-2.
              The  sane-pixma no longer requires this option to be used: if no
              fresh data is available, it will be now requested  automatically
              from the scanner. This option is left for backward compatibility
              reasons.

       button-1 button-2
              (read only) These options will return the value of  the  respec-
              tive  buttons.  value 0 means that the button was not pressed, 1
              is returned when the button was pressed. Some scanners with more
              than two buttons send the button number as target.

       original
              (read only) Returns the value of the type or size of original to
              be scanned if the scanner provides that data.  Known  values  of
              type:  1 = document, 2 = foto, 5 = film. Known values of size: 1
              = A4, 2 = Letter, 8 = 10x15, 9 = 13x18, b = auto.  Not all scan-
              ners can provide this data.

       target (read  only)  Returns the value of the target of the scan opera-
              tion if the scanner provides that data. The values depend on the
              scanner type. Known values: 1 = save to disk, 2 = save to pdf, 3
              = send to email, 4 = send to application or 1 = JPEG, 2 =  TIFF,
              3 = PDF, 4 = Compact PDF. For some scanners this value is equiv-
              alent to the number of the pressed button. Not all scanners  can
              provide this data.

       scan-resolution
              (read  only) Returns the resolution of the scan operation if the
              scanner provides that data. Known values: 1 = 75 dpi,  2  =  150
              dpi, 3 = 300 dpi, 4 = 600 dpi. Not all scanners can provide this
              data.

       document-type
              (read only) Returns the type of  the  scanned  document  if  the
              scanner  provides  that  data.  Known  values: 1 = Document, 2 =
              Photo, 3 = Auto scan. Not all scanners can provide this data.

       adf-status
              (read only) Returns the status of the  document  feeder  if  the
              scanner provides that data. Known values: 1 = ADF empty, 2 = ADF
              filled. Not all scanners can provide this data.

       adf-orientation
              (read only) Returns the scan orientation of the  medium  scanned
              from  ADF  if  the scanner provides that data. Known values: 1 =
              Portrait, 2 = Landscape. Not all scanners can provide this data.


FILES

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

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

       /usr/local/etc/sane.d/pixma.conf
              The   backend   configuration  file  (see  also  description  of
              SANE_CONFIG_DIR below).

              The file contains an optional list of networked  scanners  using
              the  BJNP  or MFNP protools (See below for datails on networking
              support for scanners). Normally only  scanners  that  cannot  be
              auto-detected  because  they  are on a different subnet shall be
              listed here. If you do not use Linux and your OS does not  allow
              enumeration of interfaces (i.e. it does not support the getifad-
              drs() function) you also may need to add your  scanner  here  as
              well.

              Scanners shall be listed in the configuration file as follows:

                     <method>://<host>[:port][/timeout=<value>]

              where  method  indicates  the  protocol  used  (bjnp is used for
              inkjet multi-functionals and mfnp is used for laser  multi-func-
              tionals).

              host  is  the  hostname  or  IP  address  of  the  scanner, e.g.
              bjnp://10.0.1.4                    for                     IPv4,
              bjnp://[2001:888:118e:18e2:21e:8fff:fe36:b64a]   for  a  literal
              IPv6-address or bjnp://myscanner.mydomain.org for a hostname.

              The port number is optional  and  in  normally  implied  by  the
              method.  Port 8610 is the standard port for mfnp, 8612 for bjnp.

              A scanner specific timeout value for the network protocol can be
              set using the bjnp-timeout parameter. The value is in ms.

              Define scanners each on a new line.

              More globally applicable timeouts can be  set  using  the  bjnp-
              timeout parameter as follows:

                     bjnp-timeout=<value>

              A timeout defined using bjnp-timeout will apply to the following
              scanner definitions in the file. If  required  the  bjnp-timeout
              setting  can  be  defined multiple times, where each settng will
              apply only to the scanners that follow  the  setting.  The  last
              setting  is  used  for  the  auto  discovered  scanners.  If not
              explicitly set, the default 1000ms setting will apply.

              Setting timeouts should only be required in exceptional cases.

       If so desired networking can be disbled as follows:

              -      If the first non-commented  line  contains  networking=no
                     all  networking  will  be  disabled.  This will cause all
                     further  statements  in  the  configuration  file  to  be
                     ignored.

              -      A  line  that contains auto_detection=no will cause auto-
                     detection to  be  skipped.  Explicitely  defined  network
                     scanners will still be probed.


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 and MFNP protocols.

       Canon seems to be dropping support for these protocols in recent  scan-
       ners.  To verify if your scanner supports one of these protocols, check
       the content of the _scanner._tcp service entry  in  mDNS/DNS-SD  (using
       for  example  avahi-discover).  If that does not list port 8610 or 8612
       your scanner probably does not support the mfmp or bjnp protols.

       Both IPv4 and IPv6 are supported, but IPv6  is  as  yet  untested  with
       MFNP. Please report your results on the mailing list.

       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 8610  for  MFNP  or  port
       8612  for BJNP on the scanner. So you will have to allow outgoing traf-
       fic TO port 8610 or 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 netowrk interfaces). The broadcast  is
       sent  FROM  port  8612 TO port 8610 or 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.
       For automatic detection of your scanner, you  will  therefore  have  to
       allow  incoming  packets TO port 8612 on your computer. This applies to
       both MFNP and BJNP.

       So in short: open the firewall for all traffic from  your  computer  to
       port 8610 (for MFNP) or 8612 (for BJNP) AND to port 8612 (for both BJNP
       and MFNP) 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
              itself. Higher value increases the verbosity  and  includes  the
              information printed at the lower levels.
              0  print nothing (default)
              1  print error and warning messages (recommended)
              2  print informational messages
              3  print debug-level messages
              4  print verbose debug-level messages
              11 dump USB traffic
              21 full dump USB traffic

       SANE_DEBUG_BJNP
              If  the  library  was  compiled with debug support enabled, this
              environment variable controls the debug level for the  BJNP  and
              MFNP  network protocols for this backend. Higher value increases
              the verbosity and includes the information printed at the  lower
              levels.
              0 print nothing (default)
              1 Print error and warning messages (recommended)
              2 Print high level function tracing information
              3 Print more detailed protocol tracing information
              4 Print protocol headers
              5 Print full protocol contents

       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
              /usr/local/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 directo-
              ries.   For  example,  setting SANE_CONFIG_DIR to "/tmp/config:"
              would   result   in   directories   "tmp/config",    ".",    and
              "/usr/local/etc/sane.d" being searched (in this order).


SEE ALSO

       sane(7), sane-dll(5), scanimage(1), gamma4scanimage(1),

       In  case  of trouble with a recent Pixma model, try the latest code for
       the pixma backend, available in the Sane git repository at:
       https://gitlab.com/sane-project/backends.git

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


AUTHORS

       Wittawat Yamwong, Nicolas Martin, Dennis  Lou,  Louis  Lagendijk,  Rolf
       Bensch

       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.

                                  15 Aug 2020                    sane-pixma(5)

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