1sane-avision(5)          SANE Scanner Access Now Easy          sane-avision(5)
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NAME

6       sane-avision  - SANE backend for original Avision and Avision OEM scan‐
7       ners (HP, Minolta, Mitsubishi, UMAX and possibly more) flatbed and film
8       scanners.
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DESCRIPTION

12       The  sane-avision  library  implements a SANE (Scanner Access Now Easy)
13       backend that provides access to various Avision scanners and  the  Avi‐
14       sion OEM scanners labelled by HP, Minolta, Mitsubishi or Fujitsu.
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16       It  is  fully big-endian aware and in everyday use on PowerPC and SPARC
17       systems.
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19       I suggest you hold one hand on the power-button of  the  scanner  while
20       you try the first scans - especially with film-scanners!
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CONFIGURATION

24       The  configuration  file  for  this backend resides in /etc/sane.d/avi‐
25       sion.conf.
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27       Its contents is a list of device names that correspond to  Avision  and
28       Avision  compatible scanners and backend-options. Empty lines and lines
29       starting with a hash mark (#) are ignored. A sample configuration  file
30       is shown below:
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32        # this is a comment
33        option force-a4
34        option force-a3
35        option skip-adf
36        option disable-gamma-table
37        option disable-calibration
38        #scsi Vendor Model Type Bus Channel ID LUN
39        scsi AVISION
40        scsi HP
41        scsi /dev/scanner
42        usb 0x03f0 0x0701
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45       force-a4:
46              Forces  the  backend  to overwrite the scanable area returned by
47              the scanner to ISO A4. Scanner that are known  to  return  bogus
48              data are marked in the backend so if you need this option please
49              report this to the backend maintainer. USE WITH CARE!
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51       force-a3:
52              Forces the backend to overwrite the scanable  area  returned  by
53              the  scanner  to  ISO A3. Scanner that are known to return bogus
54              data are marked in the backend so if you need this option please
55              report this to the backend maintainer. USE WITH CARE!
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57       skip-adf:
58              Forces the backend to ignore an inconsistent ADF status returned
59              by the scanner (ADF not present, but ADF model number non-zero).
60              Without  this  option, the backend will make several attempts to
61              reset the ADF and retry the query in this  situation,  and  will
62              fail  with  a  "not  supported"  error  if the ADF still doesn't
63              respond.
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65       disable-gamma-table:
66              Disables the usage of the scanner's gamma-table. You  might  try
67              this if your scans hang or only produces random garbage.
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69       disable-calibration:
70              Disables  the scanner's color calibration. You might try this if
71              your scans hang or only produces random garbage.
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73       Note:  Any option above modifies the default code-flow for  your  scan‐
74              ner. The options should only be used when you encounter problems
75              with the default be- haviour of the backend. Please  report  the
76              need  of  options  to  the  backend-author so the backend can be
77              fixed as soon as possible.
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DEVICE NAMES

81       This backend expects device names of the form:
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83              scsi scsi-spec
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85              usb usb-spec
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87       Where scsi-spec is the path-name to a special device or a device ID for
88       the  device that corresponds to a SCSI scanner. The special device name
89       must be a generic SCSI device or a symlink to such a device, for  exam‐
90       ple on Linux /dev/sga or /dev/sg0.  The device ID is the ID returned by
91       the scanner, for  example  "HP"  or  "AVISION".  See  sane-scsi(5)  for
92       details.
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94       Note:  Since  the  backend  now  includes  native  USB access, it is no
95              longer needed - even considered obsolete - to access USB scanner
96              via  the  SCSI  emulation (named hpusbscsi on Linux) for Avision
97              USB devices such as the HP 53xx, HP 74xx or  Minolta  film-scan‐
98              ners.
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100       usb-spec is the USB device name, the vendor/product ID pair or the name
101       used by libusb corresponding to the USB scanner.  For  example  "0x03f0
102       0x0701" or "libusb:002:003". See sane-usb(5) for details.
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104       The  program sane-find-scanner(1) helps to find out the correct scsi or
105       usb device name.
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107       A list with supported devices is built into the avision backend so nor‐
108       mally specifying an ID should not be necessary.
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FILES

112       /etc/sane.d/avision.conf
113              The   backend   configuration  file  (see  also  description  of
114              SANE_CONFIG_DIR below).
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116       /usr/lib64/sane/libsane-avision.a
117              The static library implementing this backend.
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119       /usr/lib64/sane/libsane-avision.so
120              The shared library implementing this backend (present on systems
121              that support dynamic loading).
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ENVIRONMENT

125       SANE_CONFIG_DIR
126              This environment variable specifies the list of directories that
127              may contain the configuration file.  Under UNIX, the directories
128              are  separated  by a colon (`:'), under OS/2, they are separated
129              by a semi-colon (`;').  If this variable is not set, the config‐
130              uration  file is searched in two default directories: first, the
131              current working directory (".") and then in /etc/sane.d.  If the
132              value  of the environment variable ends with the directory sepa‐
133              rator character, then the default directories are searched after
134              the  explicitly  specified  directories.   For  example, setting
135              SANE_CONFIG_DIR to "/tmp/config:" would  result  in  directories
136              tmp/config, ., and /etc/sane.d being searched (in this order).
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138       SANE_DEBUG_AVISION
139              If  the  library  was  compiled with debug support enabled, this
140              environment variable controls the debug level for this  backend.
141              Higher  debug  levels  increase the verbosity of the output. The
142              debug level 7 is the author's preferred value to  debug  backend
143              problems.
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145              Example: export SANE_DEBUG_AVISION=7
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SEE ALSO

149       sane(7), sane-scsi(5), sane-usb(5)
150       http://exactcode.com/site/open_source/saneavision
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MAINTAINER

154       René Rebe
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AUTHOR

158       René Rebe and Meino Christian Cramer
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162                                  11 Jul 2008                  sane-avision(5)
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