.TH sane\-sm3840 5 "11 Jul 2008" "" "SANE Scanner Access Now Easy"
.IX sane\-sm3840
.SH NAME
sane\-sm3840 \- SANE backend for Microtek scanners with SCAN08 USB chip
.SH DESCRIPTION
The
.B sane\-sm3840
library implements a SANE (Scanner Access Now Easy) backend that
provides access to some Microtek scanners with the SCAN08
USB chip.
.PP
There exist backends for Microtek scanners with SCSI command set.
Refer to sane\-microtek(5) and sane\-microtek2(5) for details.
.PP
There also exists a Microtek 3600 series driver, see sane\-sm3600(5) for
details.
.PP
At present, the following
scanners are known positively to work with this backend:
.PP
.RS
.ft CR
.nf
Vendor     Product ID:     Remark:
--------   --------------  -----------
Microtek   ScanMaker 3840  All modes OK
Microtek   ScanMaker 4800  All modes OK
.fi
.ft R
.RE
.PP
If you own a Microtek scanner with the SCAN08 chip other than the ones
listed above, it may or may not work with SANE.  Feel free to contact the
backend author (earle@ziplabel.com) to report results with scanners not
on the list.


.SH "FRONTEND OPTIONS"
.PP
The following options are supported by the sm3840-driver:
.PP
.B \-\-mode color|gray|lineart|halftone
.br
Color or grayscale mode.

.B \-\-resolution 150|300|600|1200
.br
Pixels per inch for scans.

.B \-\-depth 8|16
.br
Note that the least significant bits of 16bpp mode may be noise.

.B \-\-brightness 1..4096
.br
Higher numbers increase brightness of returned image.

.B \-\-contrast 0.1..9.9
.br
Larger numbers decrease contrast of returned image.

.B \-\-lamp\-timeout 1..15
.br
Time in minutes until the lamp is turned off after a scan.

.SH CONFIGURATION
This backend does not support a configuration file right now.

.SH FILES
.TP
.I /usr/lib/x86_64-linux-gnu/sane/libsane\-sm3840.a
The static library implementing this backend.
.TP
.I /usr/lib/x86_64-linux-gnu/sane/libsane\-sm3840.so
The shared library implementing this backend (present on systems that
support dynamic loading).


.SH ENVIRONMENT
.TP
.B SANE_DEBUG_SM3840
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 output to be printed.  Smaller
levels reduce verbosity. To see error messages on stderr set
SANE_DEBUG_SM3840 to 1.

.SH "SEE ALSO"
sane\-microtek2(5), sane\-sm3600(5), http://www.ziplabel.com/sm3840

.SH AUTHOR
.br
Earle F. Philhower III (earle@ziplabel.com)
.br