sane-umax1220u(5) SANE Scanner Access Now Easy sane-umax1220u(5)NAMEsane-umax1220u - SANE backend for the UMAX Astra 1220U
scanner
DESCRIPTION
The sane-umax1220 library implements a SANE (Scanner
Access Now Easy) backend for the the UMAX Astra 1220U
scanner.
For the latest information on this backend, please visit
http://umax1220u-sane.sourceforge.net/.
UMAX ASTRA 2000U EXPERIMENTAL SUPPORT
This backend may also be able to drive the UMAX Astra
2000U. Some people are successful with it, others report
that the colors come out terrible. Your milage may vary.
From Stephane (the author of sane-umax_pp), I learned that
there are differences in the way the color calibration is
performed on the 1220U and the 2000U and it may account
for the problem. Stephane's backend support the 2000P,
the parallel port sibling to the 2000U. It may be possible
to use ideas and code from Stephane's backend to add com-
plete support for the 2000U to this backend. Since I do
not have access to an Astra 2000U, I do not plan to work
on this -- any volunteers?
CONFIGURATION
The configuration file for this backend resides in
/usr/freeware/etc/sane.d/umax1220u.conf.
Its contents is a list of device names that correspond to
UMAX Astra 1220U scanners. Empty lines and lines starting
with a hash mark (#) are ignored. A sample configuration
file is shown below:
#usb vendor product
usb 0x1606 0x0010
# Device list for non-linux systems
/dev/scanner
/dev/usb/scanner0
When driving a Astra 2000U, use the product number 0x0030.
See sane-usb(5) for information on how to set the access
permissions on the usb device files.
FILES
The backend configuration file:
/usr/freeware/etc/sane.d/umax1220u.conf
The static library implementing this backend:
/usr/freeware/lib32/sane/libsane-umax1220u.a
The shared library implementing this backend :
/usr/freeware/lib32/sane/libsane-umax1220u.so
(present on systems that support dynamic loading)
ENVIRONMENT
SANE_DEBUG_UMAX1220U
If the library was compiled with debug support enabled,
this environment variable controls the debug level for
this backend. E.g., a value of 128 requests all debug out-
put to be printed. Smaller levels reduce verbosity:
SANE_DEBUG_UMAX1220U values
Number Remark
1 print failures
2 print information
3 print high-level function calls
4 print high-level function checkpoints
9 print mid-level function calls
10 print mid-level function checkpoints
80 print protocol-level function entry
90 print protocol-level function exit
Example:
export SANE_DEBUG_UMAX1220U=10
KNOWN BUGS
600 dpi scanning may fail for large image sizes.
If you keep getting I/O errors, try cycling the power on
your scanner to reset it.
There is no way to cancel a scan, since the driver ignores
sane_cancel().
If you try scanning an image which is too small, you will
get I/O errors. Be sure to adjust the scan area before
doing a scan, since by default, the scan area is zero.
SEE ALSOsane(7), sane-usb(5)
For latest bug fixes and information see
http://umax1220u-sane.sourceforge.net/
AUTHOR
Marcio Luis Teixeira <marciot@users.sourceforge.net>
EMAIL-CONTACT
umax1220u-sane-devel@lists.sourceforge.net
REPORTING BUGS
When reporting bugs, please run the backend with
SANE_DEBUG_UMAX1220U set to 10 and attach a copy of the
log messages.
sane-backends 1.0.12 6 Jan 2002 sane-umax1220u(5)
