1sane-avision(5)          SANE Scanner Access Now Easy          sane-avision(5)
2
3
4

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.
9
10

ABOUT THIS FILE

12       This  file  is a short description for the avision-backend shipped with
13       SANE.
14
15

DESCRIPTION

17       The sane-avision library implements a SANE (Scanner  Access  Now  Easy)
18       backend  that  provides access to various Avision scanners and the Avi‐
19       sion OEM scanners labelled by HP, Minolta, Mitsubishi or Fujitsu.
20
21       It is fully big-endian aware and in every-day use on PowerPC and  SPARC
22       systems.
23
24       I  suggest  you  hold one hand on the power-button of the scanner while
25       you try the first scans - especially with film-scanners!
26
27

CONFIGURATION

29       The configuration file for this  backend  resides  in  /etc/sane.d/avi‐
30       sion.conf.
31
32       Its  contents  is a list of device names that correspond to Avision and
33       Avision compatible scanners and backend-options. Empty lines and  lines
34       starting  with a hash mark (#) are ignored. A sample configuration file
35       is shown below:
36
37        # this is a comment
38        option force-a4
39        option force-a3
40        option skip-adf
41        option disable-gamma-table
42        option disable-calibration
43        #scsi Vendor Model Type Bus Channel ID LUN
44        scsi AVISION
45        scsi HP
46        scsi /dev/scanner
47        usb 0x03f0 0x0701
48
49
50       force-a4:
51              Forces the backend to overwrite the scanable  area  returned  by
52              the  scanner  to  ISO A4. Scanner that are known to return bogus
53              data are marked in the backend so if you need this option please
54              report this to the backend maintainer. USE WITH CARE!
55
56       force-a3:
57              Forces  the  backend  to overwrite the scanable area returned by
58              the scanner to ISO A3. Scanner that are known  to  return  bogus
59              data are marked in the backend so if you need this option please
60              report this to the backend maintainer. USE WITH CARE!
61
62       skip-adf:
63              Forces the backend to ignore an inconsistent ADF status returned
64              by the scanner (ADF not present, but ADF model number non-zero).
65              Without this option, the backend will make several  attempts  to
66              reset  the  ADF  and retry the query in this situation, and will
67              fail with a "not supported"  error  if  the  ADF  still  doesn't
68              respond.
69
70       disable-gamma-table:
71              Disables  the  usage of the scanner's gamma-table. You might try
72              this if your scans hang or only produces random garbage.
73
74       disable-calibration:
75              Disables the scanner's color calibration. You might try this  if
76              your scans hang or only produces random garbage.
77
78       Note:  Any  option  above modifies the default code-flow for your scan‐
79              ner. The options should only be used when you encounter problems
80              with  the  default be- haviour of the backend. Please report the
81              need of options to the backend-author  so  the  backend  can  be
82              fixed as soon as possible.
83
84

DEVICE NAMES

86       This backend expects device names of the form:
87
88              scsi scsi-spec
89
90              usb usb-spec
91
92       Where scsi-spec is the path-name to a special device or a device ID for
93       the device that corresponds to a SCSI scanner. The special device  name
94       must  be a generic SCSI device or a symlink to such a device, for exam‐
95       ple on Linux "/dev/sga" or "/dev/sg0". The device ID is the ID returned
96       by  the  scanner,  for  example "HP" or "AVISION". See sane-scsi(5) for
97       details.
98
99       Note:  Since the backend now includes  native  USB  access,  it  is  no
100              longer needed - even considered obsolete - to access USB scanner
101              via the SCSI emulation (named hpusbscsi on  Linux)  for  Avision
102              USB  devices  such as the HP 53xx, HP 74xx or Minolta film-scan‐
103              ners.
104
105       usb-spec is the USB device name, the vendor/product ID pair or the name
106       used  by  libusb  corresponding to the USB scanner. For example "0x03f0
107       0x0701" or "libusb:002:003". See sane-usb(5) for details.
108
109       The program sane-find-scanner helps to find out the correct scsi or usb
110       device name.
111
112       A list with supported devices is built into the avision backend so nor‐
113       mally specifying an ID should not be necessary.
114
115

FILES

117       /etc/sane.d/avision.conf
118              The  backend  configuration  file  (see  also   description   of
119              SANE_CONFIG_DIR below).
120
121       /usr/lib64/sane/libsane-avision.a
122              The static library implementing this backend.
123
124       /usr/lib64/sane/libsane-avision.so
125              The shared library implementing this backend (present on systems
126              that support dynamic loading).
127
128

ENVIRONMENT

130       SANE_CONFIG_DIR
131              This environment variable specifies the list of directories that
132              may contain the configuration file.  Under UNIX, the directories
133              are separated by a colon (`:'), under OS/2, they  are  separated
134              by a semi-colon (`;').  If this variable is not set, the config‐
135              uration file is searched in two default directories: first,  the
136              current working directory (".") and then in /etc/sane.d.  If the
137              value of the environment variable ends with the directory  sepa‐
138              rator character, then the default directories are searched after
139              the explicitly  specified  directories.   For  example,  setting
140              SANE_CONFIG_DIR  to  "/tmp/config:"  would result in directories
141              "tmp/config", ".", and "/etc/sane.d"  being  searched  (in  this
142              order).
143
144       SANE_DEBUG_AVISION
145              If  the  library  was  compiled with debug support enabled, this
146              environment variable controls the debug level for this  backend.
147              Higher  debug  levels  increase the verbosity of the output. The
148              debug level 7 is the author's preferred value to  debug  backend
149              problems.
150
151              Example: export SANE_DEBUG_AVISION=7
152
153

SEE ALSO

155       sane(7), sane-scsi(5), sane-usb(5)
156       http://exactcode.com/site/open_source/saneavision/
157
158

MAINTAINER

160       René Rebe
161

AUTHOR

163       René Rebe and Meino Christian Cramer
164
165
166
167                                  11 Jul 2008                  sane-avision(5)
Impressum