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       sane-plustek - SANE backend for LM983[1/2/3] based USB flatbed scanners


       The sane-plustek library implements a SANE (Scanner  Access  Now  Easy)
       backend  that provides access to USB flatbed scanners based on National
       Semiconductor Merlin chipsets  (LM9831,  9832  and  9833).   If  you’re
       looking  for  parallel-port support for Plustek scanner please refer to
       the sane-plustek_pp backend.


       The Backend is able to  support  USB  scanner  based  on  the  National
       Semiconductor  chipsets LM9831, LM9832 and LM9833. The following tables
       show various devices which are currently  reported  to  work.  If  your
       Plustek  scanner  has  another  Product  ID,  then  the  device  is NOT
       supported by this backend.

       Vendor Plustek - ID: 0x07B3
       USB Model:         ASIC:  Properties:              Prod-ID
       OpticPro U12       LM9831  600x1200dpi 42bit 512Kb 0x0010
       OpticPro UT12      LM9831  600x1200dpi 42bit 512Kb 0x0013
       OpticPro UT12      LM9832  600x1200dpi 42bit 512Kb 0x0017
       OpticPro UT16      LM9832  600x1200dpi 42bit 512Kb 0x0017
       OpticPro U24       LM9831 1200x2400dpi 42bit   2Mb 0x0011
       OpticPro U24       LM9832 1200x2400dpi 42bit   2Mb 0x0015
       OpticPro UT24      LM9832 1200x2400dpi 42bit   2Mb 0x0017

       Vendor KYE/Genius - ID: 0x0458
       USB Model:         ASIC:  Properties:              Prod-ID
       Colorpage HR6 V2   LM9832  600x1200dpi 42bit 512Kb 0x2007
       Colorpage HR6 V2   LM9832  600x1200dpi 42bit 512Kb 0x2008
       Colorpage HR6A     LM9832  600x1200dpi 42bit 512Kb 0x2009
       Colorpage HR7      LM9832  600x1200dpi 42bit 512Kb 0x2013
       Colorpage HR7LE    LM9832  600x1200dpi 42bit 512Kb 0x2015
       Colorpage HR6X     LM9832  600x1200dpi 42bit 512Kb 0x2016

       Vendor Hewlett-Packard - ID: 0x03F0
       USB Model:         ASIC:  Properties:              Prod-ID
       ScanJet 2100C      LM9831  600x1200dpi 42bit 512Kb 0x0505
       ScanJet 2200C      LM9832  600x1200dpi 42bit 512Kb 0x0605

       Vendor Mustek - ID: 0x0400
       USB Model:         ASIC:  Properties:              Prod-ID
       BearPaw 1200       LM9831  600x1200dpi 42bit 512Kb 0x1000
       BearPaw 1200       LM9832  600x1200dpi 42bit 512Kb 0x1001*
       BearPaw 2400       LM9832 1200x2400dpi 42bit   2Mb 0x1001
       * see also description for model override switch below!

       Vendor UMAX - ID: 0x1606
       USB Model:         ASIC:  Properties:              Prod-ID
       UMAX 3400          LM9832  600x1200dpi 42bit 512Kb 0x0050
       UMAX 3400/3450     LM9832  600x1200dpi 42bit 512Kb 0x0060
       UMAX 5400          LM9832 1200x2400dpi 42bit 512Kb 0x0160

       Vendor COMPAQ - ID: 0x049F
       USB Model:         ASIC:  Properties:              Prod-ID
       S4-100             LM9832  600x1200dpi 42bit 512Kb 0x001A

       Vendor Epson - ID: 0x04B8
       USB Model:         ASIC:  Properties:              Prod-ID
       Perfection 1250    LM9832 1200x2400dpi 42bit 512Kb 0x010F
       Perfection 1260    LM9832 1200x2400dpi 42bit 512Kb 0x011D

       Vendor CANON - ID: 0x04A9
       USB Model:         ASIC:  Properties:              Prod-ID
       CanoScan N650/656U LM9832  600x1200dpi 42bit 512Kb 0x2206
       CanoScan N1220U    LM9832 1200x2400dpi 42bit 512Kb 0x2207
       CanoScan D660U     LM9832  600x1200dpi 42bit 512Kb 0x2208
       CanoScan N670/676U LM9833  600x1200dpi 48bit 512Kb 0x220D
       CanoScan N1240U    LM9833 1200x2400dpi 48bit 512Kb 0x220E
       CanoScan LIDE20    LM9833  600x1200dpi 48bit 512Kb 0x220D
       CanoScan LIDE25    LM9833 1200x2400dpi 48bit 512Kb 0x2220
       CanoScan LIDE30    LM9833 1200x2400dpi 48bit 512Kb 0x220E

       Vendor Syscan - ID: 0x0A82
       USB Model:         ASIC:  Properties:              Prod-ID
       Travelscan 662     LM9833  600x1200dpi 48bit 512Kb 0x6620
       Travelscan 464     LM9833  600x1200dpi 48bit 512Kb 0x4600

       Vendor Portable Peripheral Co., Ltd. - ID: 0x0A53
       USB Model:         ASIC:  Properties:              Prod-ID
       Q-Scan USB001      LM9832   300x600dpi 42bit 512Kb 0x1000

       Vendor Visioneer - ID: 0x04A7
       USB Model:         ASIC:  Properties:              Prod-ID
       Strobe XP100       LM9833  600x1200dpi 48bit 512Kb 0x0427


       For parallelport device support see the plustek_pp backend.
       The SCSI scanner OpticPro 19200S is a rebadged Artec AM12S scanner  and
       is supported by the Artec backend.
       Only  the  National  Semiconductor LM983[1/2/] based devices of Plustek
       are supported by this backend. Older versions of the U12, the UT12, the
       U1212 and U1248 (GrandTech chipset) are not supported.

       Model             Chipset    backend
       U1248             GrandTech  gt68xx
       UT16B             GrandTech  gt68xx
       OpticSlim 1200    GrandTech  gt68xx
       OpticSlim 2400    GrandTech  gt68xx
       U12                P98003     u12
       UT12               P98003     u12
       1212U              P98003     u12
       For    a    more    complete    and    up    to    date    list    see:


       To use your scanner with this backend, you need at least two entries in
       the configuration file /etc/sane.d/plustek.conf
              [usb] vendor-id product-id
              device /dev/usbscanner

       [usb]   tells   the   backend,  that  the  following  devicename  (here
       /dev/usbscanner) has to  be  interpreted  as  USB  scanner  device.  If
       vendor-  and  product-id  has  not been specified, the backend tries to
       detect this by its own. If device is set to auto then the next matching
       device is used.
       The  following  options can be used for a default setup of your device.
       Most of them are also available through the frontend.

       The Options:

       option warmup t
              t specifies the warmup period in seconds,  if  set  to  -1,  the
              automatic warmup function will be used

       option lampOff t
              t  is the time in seconds for switching off the lamps in standby

       option lOffonEnd b
              b specifies the behaviour when closing the backend, 1 --> switch
              lamps off, 0 --> do not change lamp status

       option mov m
              m  is  the  model  override  switch.  It  works only with Mustek
              BearPaw devices.
              m/PID |    0x1000    |    0x1001
                0   | BearPaw 1200 | BearPaw 2400
                1   |  no function | BearPaw 1200

       option invertNegatives b
              b 0 --> do not invert the picture during negativ scans,
              1 --> invert picture

       option cacheCalData b
              b 0 --> do not save calibration results,
              1 --> save results of calibration in ~/.sane/ directory

       option altCalibration b
              b 0 --> use standard calibration routines,
              1 --> use  alternate  calibration  (only  non  Plustek  devices,
              standard for CIS devices)

       option skipFine b
              b 0 --> perform fine calibration,
              1 --> skip fine calibration (only non Plustek devices)

       option skipFineWhite b
              b 0 --> perform white fine calibration,
              1 --> skip white fine calibration (only non Plustek devices)

       option skipDarkStrip b
              b  0  -->  perform dark calibration, with enabled lamp using the
              dark calibration strip of the scanner. If the scanner  does  not
              have such a strip, the alternative way is to switch off the lamp
              during this step.
              1 --> always switch off the lamp for dark  calibration,  even  a
              black strip is available

       option skipCalibration b
              b 0 --> perform calibration,
              1 --> skip calibration (only non Plustek devices)

       option enableTPA b
              b 0 --> default behaviour, specified by the internal tables,
              1  -->  override  internal tables and allow TPA mode (EPSON/UMAX

       option posOffX x
       option posOffY y
       option tpaOffX x
       option tpaOffY y
       option negOffX x
       option negOffY y
              x y By using this settings, the user can adjust the given  image
              positions.  Please note, that theres no internal range checking
              for this feature.

       option posShadingY p
       option tpaShadingY p
       option negShadingY p
              p overrides the internal shading position.  The  values  are  in
              steps.  Please note, that theres no internal range checking for
              this feature.

       option redGamma r
       option greenGamma g
       option blueGamma b
       option grayGamma gr
              r g b gr
       By using these values, the internal linear gamma table (r,g,b,gr = 1.0)
       can be adjusted.

       option red_gain r
       option red_offset ro
       option green_gain g
       option green_offset go
       option blue_gain b
       option blue_offset bo
              r  g  b  ro  go  bo These values can be used to set the gain and
              offset values of the AFE for each channel. The range is  between
              0 and 63. -1 means autocalibration.

       See the plustek.conf file for examples.

       You  have  to make sure, that the USB subsystem is loaded correctly and
       you have access to the device-node. For more details see  sane-usb  (5)
       manpage.  You might use sane-find-scanner to check that you have access
       to your device.

       If there’s no configuration file, the backend defaults to device auto


              The backend configuration file

              The static library implementing this backend.

              The shared library implementing this backend (present on systems
              that support dynamic loading).


              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).

              If the library was compiled with  debug  support  enabled,  this
              environment  variable controls the debug level for this backend.
              Higher debug levels increase the verbosity of the output.

              Example: export SANE_DEBUG_PLUSTEK=10


       sane(7), sane-usb(5), sane-u12(5), sane-gt68xx(5),


       Please send any information and bug-reports to:
       SANE Mailing List

       Additional info and hints can be obtained from our
       Mailing-List archive at:

       or directly from the projects’ homepage at:

       To obtain debug messages from the backend, please set the  environment-
       variable  SANE_DEBUG_PLUSTEK before calling your favorite scan-frontend
       (i.e. xscanimage).
       i.e.: export SANE_DEBUG_PLUSTEK=20 ; xscanimage

       The value controls the verbosity of  the  backend.  Please  note,  that
       values  greater  than  24  force  the backend to output raw data files,
       which could be rather large. The ending of these files is ".raw".   For
       problem reports it should be enough the set the verbosity to 13.


       *  The  driver does not support these manic scalings up to 16 times the
       physical resolution. The only scaling is done  on  resolutions  between
       the  physical  resolution  of the CCD-/CIS-sensor and the stepper motor
       i.e. you have a 600x1200 dpi scanner and you are scanning using 800dpi,
       so  scaling  is  necessary, because the sensor only delivers 600dpi but
       the motor is capable to perform 1200dpi steps.

       *  Plusteks’  model  policy  is  somewhat   inconsistent.   They   sell
       technically different devices under the same product name. Therefore it
       is possible that some devices like the UT12 or U12 won’t work -  please
       check  the  model list above and compare the product-id to the one your
       device has.

       * Negative/Slide scanning quality is poor.

                                  25 Aug 2008                  sane-plustek(5)