| Linux / Unix Command: sane-bh |
NAME
sane-bh - SANE backend for Bell+Howell Copiscan II series document scannersDESCRIPTION
The sane-bh library implements a SANE (Scanner Access Now Easy) backend that provides access to Bell+Howell Copiscan II series document scanners. The Copiscan II 6338 has been the primary scanner model used during development and testing, but since the programming interface for the entire series is consistent the backend should work for the following scanner models.
-
COPISCAN II 6338 Duplex Scanner with ACE
COPISCAN II 2135 Simplex Scanner
COPISCAN II 2137(A) Simplex Scanner (with ACE)
COPISCAN II 2138A Simplex Scanner with ACE
COPISCAN II 3238 Simplex Scanner
COPISCAN II 3338(A) Simplex Scanner (with ACE)
If you have a Bell+Howell scanner and are able to test it with this backend, please contact sane-devel@mostang.com with the model number and testing results. Have a look at http://www.mostang.com/sane/mail.html concerning subscription to sane-devel. Additionally, the author is curious as to the likelihood of using this backend with the newer 4000 and 8000 series scanners. If you have such a beast, please let me know.
The Bell+Howell Copiscan II series document scanners are high volume, high throughput scanners designed for document scanning applications. As such, they are lineart/grayscale scanners supporting a fixed number of fairly low resolutions (e.g. 200/240/300dpi). However, they do have a number of interesting and useful features suited to needs of document imaging applications. This backend attempts to support as many of these features as possible.
The main technical reference used in writing this backend is the Bell and Howell Copiscan II Remote SCSI Controller (RSC) OEM Technical Manual Version 1.5. The Linux SCSI programming HOWTO, the SANE API documentation, and SANE source code were also extremely valuable resources.
The latest backend release, additional information and helpful hints
are available from the backend homepage:
DEVICE NAMES
This backend expects device names of the form:
- special
Where special is the path-name for the special device that corresponds to a SCSI scanner. For SCSI scanners, the special device name must be a generic SCSI device or a symlink to such a device. Under Linux, such a device name takes a format such as /dev/sga or /dev/sg0, for example. See sane-scsi(5) for details.
CONFIGURATION
The contents of the bh.conf file is a list of device names that correspond to Bell+Howell scanners. See sane-scsi(5) on details of what constitutes a valid device name. Additionally, options can be specified; these lines begin with the word "option". Each option is described in detail below. Empty lines and lines starting with a hash mark (#) are ignored.OPTIONS
The following options can be specified in the bh.conf file.- disable-optional-frames
- This option prevents the backend from sending any optional frames. This option may be useful when dealing with frontends which do not support these optional frames. When this option is in effect, the data is sent in a SANE_FRAME_GRAY frame. The optional frames sent by this backend are: SANE_FRAME_G31D, SANE_FRAME_G32D, SANE_FRAME_G42D and SANE_FRAME_TEXT. These frames are generated based on the compression and barcode options. These frames are never sent in preview mode.
- fake-inquiry
-
This option is used for debugging purposes and its use is not encouraged.
Essentially, it allows the backend to initialize in the absence of
a scanner. This is useful for development and not much else.
This option must be specified earlier in the configuration file than
the devices which are to be "faked".
SEE ALSO
sane(7), sane-scsi(5), scanimage(1), scanadf(1)Important: Use the man command (% man) to see how a command is used on your particular computer.
