Provided by: libsane-common_1.0.22-7ubuntu1_amd64 bug


       sane-fujitsu - SANE backend for Fujitsu flatbed and ADF scanners


       The  sane-fujitsu  library  implements  a  SANE  (Scanner  Access  Now Easy) backend which
       provides access to most Fujitsu flatbed and ADF scanners.

       This document describes backend version 106, which shipped with SANE 1.0.22.


       This version supports every known model which speaks the Fujitsu  SCSI  and  SCSI-over-USB
       protocols.  Specifically, the SCSI M309x and M409x series, the SCSI fi-series, most of the
       USB fi-series, and the USB ScanSnap S5xx/S15xx scanners are supported. Please see the list
       at for details.

       This  backend  may  support  other  Fujitsu  scanners.  The best way to determine level of
       support is to test the scanner directly, or to collect a trace of the  windows  driver  in
       action.  Please contact the author for help or with test results.


       The following scanners are known NOT to work with this backend, either because they have a
       non-fujitsu chipset, or an unsupported interface type.  Some  of  these  scanners  may  be
       supported by another backend.

              SCSI:        SERIAL:      USB:
              ------------ ------------ ------------
              ScanStation  M3093E/DE/EX fi-4110EOX/2
              ScanPartner  M3096EX      fi-4010CU
              SP-Jr        M3097E+/DE   S300/S300M
              SP-10/10C    M3099A/EH/EX S1300
              SP-15C/300C               fi-60F
              SP-600C/620C              fi-5015C


       Effort has been made to expose all hardware options, including:

       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",  "Halftone",  "Gray",
              and "Color".

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

       tl-x, tl-y, br-x, br-y
              Sets scan area upper left and lower right coordinates. These are renamed t, l, x, y
              by some frontends.

       page-width, page-height
              Sets  paper  size.  Used by scanner to determine centering of scan coordinates when
              using ADF and to detect double feed errors.

       Other options will be available based on the capabilities of the  scanner:  machines  with
       IPC  or DTC will have additional enhancement options, those with CMP will have compression
       options, those with a printer will have a group of endorser options.

       Additionally,  several  'software'  options  are  exposed  by  the  backend.   These   are
       reimplementations  of  features  provided  natively by larger scanners, but running on the
       host computer. This enables smaller machines to have similar capabilites. Please note that
       these  features  are  somewhat  simplistic,  and  may  not  perform  as well as the native
       implementations. Note also that these features all  require  that  the  driver  cache  the
       entire  image  in  memory.  This  will  almost certainly result in a reduction of scanning

       Use 'scanimage --help' to get a list, but be aware that some options may be settable  only
       when another option has been set, and that advanced options may be hidden by some frontend


       The configuration file "fujitsu.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 be unable to
       locate any scanners.

       Scanners can be specified in the configuration file in 4 ways:

       "scsi FUJITSU"
              Requests backend to search all scsi busses in the system for a device which reports
              itself to be a scanner made by 'FUJITSU'.

       "scsi /dev/sg0" (or other scsi device file)
              Requests  backend  to  open the named scsi device. Only useful if you have multiple
              compatible scanners connected to your system, and need  to  specify  one.  Probably
              should not be used with the other "scsi" line above.

       "usb 0x04c5 0x1042" (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
              Fujitsu 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 "buffer-size=xxx", allowing you to set the
       number of bytes in the data buffer to something other than the compiled-in default,  65536
       (64K).  Some users report that their scanner will "hang" mid-page, or fail to transmit the
       image if the buffer is not large enough.

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

       Note:  The  backend does not place an upper bound on this value, as some users required it
       to be quite large. Values above the default are not recommended, and may crash your OS  or
       lockup your scsi card driver. You have been warned.


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

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


       Flatbed units may fail to scan at maximum area, particularly at high resolution.

       Any model that does not support VPD during inquiry will not function until an override  is
       added to the backend.

       CCITT Fax compression used by older scanners is not supported.

       Hardware automatic paper width detection (aka auto-cropping) is not supported.

       JPEG  output  is supported by the backend, but not by the SANE protocol, so is disabled in
       this release. It can be enabled if you rebuild from source.


       m3091 backend: Frederik Ramm <frederik a t remote d o t org>
       m3096g backend: Randolph Bentson <bentson a t holmsjoen d o t com>
         (with credit to the unnamed author of the coolscan driver)
       fujitsu backend, m3093, fi-4340C, ipc, cmp, long-time maintainer:
         Oliver Schirrmeister <oschirr a t abm d o t de>
       m3092: Mario Goppold <mgoppold a t tbzpariv d o t tcc-chemnitz dot de>
       fi-4220C and basic USB support: Ron Cemer <ron a t roncemer d o t com>
       fi-4120, fi-series color, backend re-write, jpeg, current maintainer:
         m. allan noah: <kitno455 a t gmail d o t com>

       JPEG output and low memory usage support funded by:
         Archivista GmbH

       Endorser support funded by:
         O A S Oilfield Accounting Service Ltd
         1500, 840 - 7th Avenue S.W.
         Calgary, Alberta
         T2P 3G2 Canada

       Automatic length detection support funded by:
         Martin G. Miller
         mgmiller at

       Software image enhancement routines funded and hardware donated by:
         Fujitsu Computer Products of America, Inc.


       sane(7), sane-scsi(5), sane-usb(5), sane-sp15c(5), sane-avision(5), sane-epjitsu(5)


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

                                           30 Jan 2011                            sane-fujitsu(5)