NAME

       sane-epjitsu - SANE backend for Epson-based Fujitsu USB scanners.

DESCRIPTION

       The  sane-epjitsu  library  implements  a  SANE  (Scanner  Access  Now Easy) backend which
       provides basic access the Fujitsu fi-60F and ScanSnap S300/S1300 scanners.

HARDWARE SUPPORT

       These scanners are fairly limited, only supporting a couple of modes and resolutions,  and
       always  scanning  full  width.  The  backend supports missing modes (binary, grayscale) in
       software, but makes no effort to offer intermediate resolutions or scan area controls. See
       KNOWN ISSUES.

       This  backend may support other scanners. If physical inspection reveals an Epson chipset,
       please contact the author for instructions on collecting a  USB  trace  under  Windows  to
       verify.

OPTIONS

       A  limited  effort has been made to expose the standard options to the API.  This allows a
       frontend to set resolution, color mode, and choose the ADF setting.  The  epjitsu  backend
       supports the following basic options for most scanners:

       source s
              Selects  the  source for the scan. Options may include "Flatbed", "ADF Front", "ADF
              Back", "ADF Duplex".

       mode m
              Selects the mode for the scan. Options may include "Lineart", "Gray", "Color".

       resolution, y-resolution
              Controls scan resolution. Setting --resolution  also  sets  --y-resolution,  though
              this behavior is overridden by some frontends.

       Other  options  will be available based on the capabilities of the scanner. Use 'scanimage
       --help' to get a list. Be aware that some options may appear only when another option  has
       been set, and that advanced options may be hidden by the frontend.

CONFIGURATION FILE

       The  configuration file "/etc/sane.d/epjitsu.conf" is used to tell the backend how to look
       for scanners, and provide options controlling the operation of the backend. This  file  is
       read  each  time the frontend asks the backend for a list of scanners, generally only when
       the frontend starts. If the configuration file is missing, the backend will not work.

       Scanners can be specified in the configuration file in two ways:

       "usb 0x04c5 0x10c7" (or other vendor/product ids)
              Requests backend to search all usb busses in the system for  a  device  which  uses
              that vendor and product id. The device will then be queried to determine if it is a
              supported scanner.

       "usb /dev/usb/scanner0" (or other device file)
              Some systems use a kernel driver to access usb scanners. This method is untested.

       The only configuration option supported is "firmware /PATH/TO/FILE", allowing you  to  set
       the location of the firmware file you have extracted from the Windows driver.

       Note: This firmware is a copyrighted work of Fujitsu, so cannot be provided by the backend
       or the author. Please do not ask.

       Note: These scanners REQUIRE a firmware file to function. See the  supplied  configuration
       file for more detail.

       Note:  This option may appear multiple times in the configuration file. It only applies to
       scanners discovered by 'usb' lines that follow this option.

ENVIRONMENT

       The  backend  uses  a  single  environment  variable,  SANE_DEBUG_EPJITSU,  which  enables
       debugging output to stderr. Valid values are:

              5  Errors
              10 Function trace
              15 Function detail
              20 Option commands
              25 USB trace
              30 USB detail
              35 Useless noise

KNOWN ISSUES

              No scan area options are exposed.
              fi-60F hardware grayscale mode is not used.
              The S1100 is not currently supported, but a patch is available.

CREDITS

       S300 support funded by Microdea, Inc. and Archivista, GmbH.
       fi-60F support funded by TrueCheck, Inc.
       Improved calibration code provided by Richard Goedeken.

SEE ALSO

       sane(7), sane-usb(5)

AUTHOR

       m. allan noah: <kitno455 a t gmail d o t com>

                                           09 Feb 2010                            sane-epjitsu(5)