Ubuntu Manpage: sane-avision - SANE backend for Avision branded and Avision OEM (HP, Minolta, Mitsubishi,

NAME

       sane-avision  - SANE backend for Avision branded and Avision OEM (HP, Minolta, Mitsubishi,
       UMAX and possibly more) flatbed and film scanners.

DESCRIPTION

       The sane-avision library implements a SANE (Scanner Access Now Easy) backend that provides
       access  to  various Avision scanners and the Avision OEM scanners labelled by HP, Minolta,
       Mitsubishi or Fujitsu.

       It is fully big-endian aware and in everyday use on PowerPC and SPARC systems.

       I suggest you hold one hand on the power-button of the scanner while  you  try  the  first
       scans - especially with film-scanners!

CONFIGURATION

The configuration file for this backend resides in /etc/sane.d/avision.conf.

Its contents is a list of device names that correspond to Avision and Avision compatible
scanners and backend-options. Empty lines and lines starting with a hash mark (#) are
ignored. A sample configuration file is shown below:

# this is a comment
option force-a4
option force-a3
option skip-adf
option disable-gamma-table
option disable-calibration
#scsi Vendor Model Type Bus Channel ID LUN
scsi AVISION
scsi HP
scsi /dev/scanner
usb 0x03f0 0x0701

force-a4:
Forces the backend to overwrite the scanable area returned by the scanner to ISO
A4. Scanner that are known to return bogus data are marked in the backend so if you
need this option please report this to the backend maintainer. USE WITH CARE!

force-a3:
Forces the backend to overwrite the scanable area returned by the scanner to ISO
A3. Scanner that are known to return bogus data are marked in the backend so if you
need this option please report this to the backend maintainer. USE WITH CARE!

skip-adf:
Forces the backend to ignore an inconsistent ADF status returned by the scanner
(ADF not present, but ADF model number non-zero). Without this option, the backend
will make several attempts to reset the ADF and retry the query in this situation,
and will fail with a "not supported" error if the ADF still doesn't respond.

disable-gamma-table:
Disables the usage of the scanner's gamma-table. You might try this if your scans
hang or only produce random garbage.

disable-calibration:
Disables the scanner's color calibration. You might try this if your scans hang or
only produce random garbage.

Note: Any option above modifies the default code-flow for your scanner. The options
should only be used when you encounter problems with the default behavior of the
backend. Please report the need of options to the backend-author so the backend can
be fixed as soon as possible.

DEVICE NAMES

       This backend expects device names of the form:

              scsi scsi-spec

              usb usb-spec

       Where  scsi-spec  is  the path-name to a special device or a device ID for the device that
       corresponds to a SCSI scanner. The special device name must be a generic SCSI device or  a
       symlink to such a device, for example on Linux /dev/sga or /dev/sg0.  The device ID is the
       ID returned by the scanner, for example "HP" or "AVISION". See sane-scsi(5) for details.

       Note:  Since the backend now includes native USB access, it is no  longer  needed  -  even
              considered obsolete - to access USB scanner via the SCSI emulation (named hpusbscsi
              on Linux) for Avision USB devices such as the HP 53xx, HP  74xx  or  Minolta  film-
              scanners.

       usb-spec  is  the  USB  device name, the vendor/product ID pair or the name used by libusb
       corresponding to the USB scanner. For example "0x03f0  0x0701"  or  "libusb:002:003".  See
       sane-usb(5) for details.

       The program sane-find-scanner(1) helps to find out the correct scsi or usb device name.

       A  list with supported devices is built into the avision backend so normally specifying an
       ID should not be necessary.

FILES

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

       /usr/lib/x86_64-linux-gnu/sane/libsane-avision.a
              The static library implementing this backend.

       /usr/lib/x86_64-linux-gnu/sane/libsane-avision.so
              The shared library implementing this  backend  (present  on  systems  that  support
              dynamic loading).

ENVIRONMENT

       SANE_CONFIG_DIR
              This  environment  variable  specifies the list of directories that may contain the
              configuration file.  On *NIX systems, 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).

       SANE_DEBUG_AVISION
              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. The debug level 7 is the author's preferred value to debug
              backend problems.

              Example: export SANE_DEBUG_AVISION=7

MAINTAINER

       René Rebe

AUTHOR

       René Rebe and Meino Christian Cramer

                                           11 Jul 2008                            sane-avision(5)