Provided by: libsane-extras_1.0.19.11ubuntu2_i386 bug
 

NAME

        sane-epkowa - SANE backend for EPSON scanners
 

DESCRIPTION

        The  sane-epkowa  library  implements  a SANE (Scanner Access Now Easy)
        backend that provides access to EPSON flatbed scanners.   This  backend
        should be considered alpha-quality software!
 
        At present, the following scanners are known to work with this backend:
 
               Model:
               japan            other
               ---------------- -------------------
               GT-6600U         Perfection 610
               GT-6700U         Perfection 640U
               GT-7200U         Perfection 1250
                                Perfection 1250 PHOTO
               GT-7300U         Perfection 1260
                                Perfection 1260 PHOTO
               GT-7600S         Perfection 1200S
               GT-7600U         Perfection 1200U
               GT-7600UF        Perfection 1200U PHOTO
               GT-7700U         Perfection 1240U
               GT-8300UF        Perfection 1660 PHOTO
               GT-8700          Perfection 1640SU
               GT-8700F         Perfection 1640SU PHOTO
               GT-8200U         Perfection 1650
               GT-8200UF        Perfection 1650 PHOTO
               GT-9300UF        Perfection 2400 PHOTO
               GT-9400          Perfection 3170 PHOTO
               GT-9700F         Perfection 2450 PHOTO
               GT-9800F         Perfection 3200 PHOTO
               GT-F500          Perfection 2480 PHOTO
               GT-F520          Perfection 3490 PHOTO
               GT-F550          Perfection 2580 PHOTO
               GT-F570          Perfection 3590 PHOTO
               GT-F600          Perfection 4180 PHOTO
               GT-F650          Perfection V100 PHOTO
               GT-F700          Perfection V350 PHOTO
               GT-S600          Perfection V10
               GT-X700          Perfection 4870 PHOTO
               GT-X750          Perfection 4490 PHOTO
               GT-X800          Perfection 4990 PHOTO
               GT-X900          Perfection V700/V750
               ES-2000          Expression 1600
               ES-2200          Expression 1680
               ES-6000          GT-10000
               ES-6000H         GT-10000+
               ES-6000HS
               ES-7000H         GT-15000
               ES-8500          Expression 1640XL
               ES-9000H         GT-30000
               ES-10000G        Expression 10000XL
               ES-H300          GT-2500
                                Stylus CX2800/CX2900/ME200
               PX-A550          Stylus CX3500/CX3600
                                Stylus CX3700/CX3800/DX3800
               PX-A620          Stylus CX3900/DX4000
                                Stylus CX4100/CX4200/DX4200
                                Stylus CX4500/CX4600
               PX-A650          Stylus CX4700/CX4800/DX4800
                                Stylus CX4900/CX5000/DX5000
               CC-600PX         Stylus CX5100/CX5200
                                Stylus CX5300/CX5400
               PX-A720          Stylus CX5900/CX6000/DX6000
                                Stylus CX6300/CX6400
                                Stylus CX6500/CX6600
                                Stylus CX7700/CX7800
               PM-A700          Stylus Photo RX420/RX425/RX430
                                Stylus Photo RX500/RX510
               PM-A750          Stylus Photo RX520/RX530
               PM-A820          Stylus Photo RX560/RX580/RX590
               PM-A850          Stylus Photo RX600/RX610
               PM-A870          Stylus Photo RX620/RX630
               PM-A890          Stylus Photo RX640/RX650
               PM-A900          Stylus Photo RX700
               PM-A920
               PM-A950
               PM-A970
               PM-T990
               LP-A500          AcuLaser CX11
               LP-M5500
               LP-M5600
 
        For other scanners the software may or may not work.  Please send  mail
        to  sane-devel@lists.alioth.debian.org to report successes or failures.
 

OPTIONS

        The options the backend supports can either be selected through command
        line  options  to  programs  like  scanimage or through GUI elements in
        xscanimage or xsane.
 
        Valid command line options and their syntax can be listed by using
               scanimage --help -d epkowa
        Not all devices support all options.
 
        Scan Mode
               The --mode switch selects the basic mode  of  operation  of  the
               scanner  valid  choices  are Binary, Gray and Color.  The Binary
               mode is black and white only, Gray will produce up to 256 levels
               of  gray  and  Color means 24 bit color mode. Some scanners will
               internally use 36 bit color, the external interface however does
               only support 24 bits.
 
               The  --dropout option determines which color filters are used to
               scan in Binary mode. Valid choices  are  None,  Red,  Green  and
               Blue.
 
               The  --halftoning switch selects the mode that is used in Binary
               mode. Valid options are None, Halftone A (Hard Tone), Halftone B
               (Soft  Tone),  Halftone  C  (Net  Screen), Dither A (4x4 Bayer),
               Dither B (4x4 Spiral), Dither C (4x4 Net Screen), Dither D  (8x4
               Net  Screen),  Text Enhanced Technology, Download pattern A, and
               Download pattern B.
 
               The --dropout switch selects the so called dropout color.  Valid
               options  are None, Red, Green and Blue. The default is None. The
               dropout color is used for monochrome scanning  and  selects  the
               color  that  is  not  scanned.  This can be used to e.g. scan an
               original with a colored background.
 
               The --brightness switch controls the  brightness  of  the  scan.
               Valid  options  are  the numbers from -3 to 3. The default is 0.
               The larger the brightness value, the brighter the image gets. If
               a  user  defined table for the gamma correction is selected, the
               brightness parameter is not available.
 
               The --sharpness switch sets the sharpness  of  the  image  data.
               Valid  options  are  the  numbers  from -2 to 2, with -2 meaning
               "Defocus",  -1  "Defocus  slightly",  0  "Normal",  1   "Sharpen
               slighly" and 2 "Sharpen".
 
               The  --gamma-correction  switch  controls  the  scanner internal
               gamma correction. Valid options are "Default",  "User  defined",
               "High  density  printing"  "Low density printing" and "High con‐
               trast printing".
 
               The --color-correction  switch  controls  the  scanner  internal
               color  correction  function.  Valid options are "No Correction",
               "Impact-dot printers", "Thermal  printers",  "Ink-jet  printers"
               and "CRT monitors". The default is "CRT monitors".
 
               The  --resolution switch selects the resolution for a scan. Many
               EPSON scanners will scan in any resolution  between  the  lowest
               and highest possible value. The list reported by the scanner can
               be displayed using the "--help -d epkowa" parameters to  scanim‐
               age.
 
               The  --mirror  option  controls the way the image is scanned. By
               reading the image data from right to left the image is  mirored.
               Valid options are "yes" and "no". The default is "no".
 
               The  --speed  option  can  improve  the scan speed in monochrome
               mode. Valid options are "yes" or "no",  the  "yes"  option  will
               speed up the scan if this option is supported.
 
               The  --auto-area-segmentation switch turns on the automatic area
               segmentation for monochrome  scans.  The  scanner  will  try  to
               determine  which  areas  are  text and which contain images. The
               image areas will be halftoned, and the  text  will  be  impoved.
               Valid options are "yes" and "no". The default is "yes".
 
               The  --gamma-table  parameter  can  be  used  to download a user
               defined gamma table. The options takes 256 values from the range
               0-255. In color mode this option equally affects the red, green,
               and blue channel.
 
               The --red-gamma-table parameter can be used to download  a  user
               defined  gamma  table for the red channel. The valid options are
               the same as for --gamma-table.
 
               The --green-gamma-table parameter can be used to download a user
               defined gamma table for the green channel. The valid options are
               the same as for --gamma-table.
 
               The --blue-gamma-table parameter can be used to download a  user
               defined  gamma table for the blue channel. The valid options are
               the same as for --gamma-table.
 
               The color correction coefficients --cct-1  --cct-2  --cct-3  ...
               --cct-9  will install color correction coefficients for the user
               defined color correction.  Possible  values  are  in  the  range
               -127..127.
 
               The --preview option requests a preview scan. The frontend soft‐
               ware automatically selects a low resolution. Valid  options  are
               "yes" and "no". The default is "no".
 
               The --preview-speed options will increase the scan speed if this
               is supported by the scanner. Valid options are "yes"  and  "no",
               the default is "no".
 
               The  geometry options -l -t -x -y control the scan area: -l sets
               the top left x coordinate, -t the  top  left  y  coordinate,  -x
               selects the width and -y the height of the scan aea. All parame‐
               ters are specified in milimeters.
 
               The --quick-format option lets the user select a scan area  with
               predefined  sizes. Valid parameters are "CD", "A5 portrait", "A5
               landscape", "Letter", "A4" and  "max".  The  default  is  "max",
               which selects the largest possible area.
 
               The  --source  option  selects  the  scan  source. Valid options
               depend on the installed options. The default is "Flatbed".
 
               The --auto-eject option will eject a page  after  scanning  from
               the document feeder.
        The  configuration file /etc/sane.d/epkowa.conf specifies the device(s)
        that the backend will use. The current version only supports one  scan‐
        ner per EPSON backend. Possible connection types are:
 
        SCSI   This  is the default, and if nothing else is specified the back‐
               end software will open a given patch as SCSI device. More infor‐
               mation about valid syntax for SCSI devices can be found in sane-
               scsi(5).
 
        PIP - Parallel Interface
               The parallel interface can be configured in two ways: An integer
               number  starting  at the beginning of a line will be interpreted
               as the IO address of the parallel port. To make it clearer  that
               a  configured IO address is a parallel port the port address can
               be preceded by the string "PIO". The PIO connection does not use
               a special device file in the /dev directory.
 
        USB    A device file that is preceded by the string "USB" is treated as
               a scanner connected via the Universal Serial  Bus.  The  correct
               special  device  file  has  to be created prior to using it with
               Sane. See the USB documentation for more information  about  how
               to set up the USB subsystem and the required device files.
 

FILES

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

ENVIRONMENT

        SANE_DEBUG_EPKOWA
               If the library was compiled with  debug  support  enabled,  this
               environment  variable controls the debug level for this backend.
               E.g., a value of 128 requests all debug output  to  be  printed.
               Smaller levels reduce verbosity.
 
        SANE_EPSON_CMD_LVL
               This  allows  to override the function or command level that the
               backend uses to communicate with the scanner. The function level
               a  scanner  supports  is determined during the initialization of
               the device. If the backend does not recognize the function level
               reported  by  the  scanner it will default to function level B5.
               Valid function levels are A1, A2, B1, B2, B3, B4, B5, B6, B7, B8
               and F5. Use this feature only if you know what you are doing!
        sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane-epson(5)
 

BUGS

        When  used with "scanimage -T" the backend hangs after sucessfully com‐
        pleting the tests. It is necessary to powercycle the scanner to get the
        communication between backend and scanner going again.
 
        Sometimes  the scanner is not initialized correctly. The problem can be
        resolved by killing the program and restarting it again.
        The backend may be used with EPSON scanners that  are  not  yet  listed
        under  the  list of supported devices. A scanner that is not recognized
        may default to the function level B3, which means that  not  all  func‐
        tions that the scanner may be capable of are accessible.
 
        If  the scanner is not even recognized as an EPSON scanner it is proba‐
        bly because the device name reported by the scanner is not in the  cor‐
        rect  format.  Please  send  this information to the backend maintainer
        (email address is in the AUTHORS file).devices. A scanner that  is  not
        recognized  may  default to the function level B3, which means that not
        all functions that the scanner may be capable of are accessible.
 
        If the scanner is not even recognized as an EPSON scanner it is  proba‐
        bly  because the device name reported by the scanner is not in the cor‐
        rect format. Please send this information  to  the  backend  maintainer
        (email address is in the AUTHORS file).
 

AUTHOR

        EPSON AVASYS Corporation
 
                                   2007-03-07                    sane-epkowa(5)