Provided by: libsane-common_1.0.27-3.2ubuntu3_all bug


       sane-mustek_pp - SANE backend for Mustek parallel port flatbed scanners


       The  sane-mustek_pp  library  implements  a  SANE  (Scanner  Access Now Easy) backend that
       provides access to Mustek parallel port flatbed scanners and OEM versions.

       There are 2 classes of Mustek parallel port scanners: regular CCD  (cold  cathode  device)
       scanners and CIS (contact image sensor) scanners.

       The current version of this backend supports both CCD type scanners and CIS type scanners.

       The following scanners might work with this backend:

   CCD scanners
       Model:                  ASIC ID:        CCD Type:       works:
       SE 6000 P               1013            00              yes
       SM 4800 P               1013/1015       04/01           yes
       SE 1200 ED Plus         1015            01              no
       SM 1200 ED Plus         1015            01              no
       SE 12000 P              1505            05              no
       600 III EP Plus         1013/1015       00/01           yes
       SE 600 SEP              1013            ??              yes
       600 II EP               ????            ??              no
       MD9848                  1015            00              yes
       Gallery 4800            ????            ??              yes
       Viviscan Compact II     1013            00              yes

   CIS scanners
       Model:                  ASIC ID:        works:
       Mustek 600 CP & 96 CP   1015            yes (*)
       Mustek 1200 CP          1015            yes
       Mustek 1200 CP+         1015            yes

       OEM versions            Original        works
          MD/LT 9350/9351      1200 CP         yes
          MD/LT 9850/9851      1200 CP         maybe (**)
          MD/LT 9858           1200 CP         probably
          MD/LT 9890/9891      1200 CP         yes
          Funline TS12EP       1200 CP         yes
          Funline TS6EP        600 CP          yes
          Easy Connect 9600+   600 CP          yes
          9352                 1200 CP         yes (***)

       (*)     Calibration  problems existed with earlier version of this driver. They seem to be
              solved now.

       (**)   Problems have been reported in the past for the MD/LT9850 type (striped scans, head
              moving in wrong direction at some resolutions). It is not known whether the current
              version of the driver still has these problems.

       type of scanner).

       (***)   Possibly,  the  engine_delay  parameter  has to be set to 1 ms for accurate engine

       Please note that this backend is still under construction. Certain  models  are  currently
       not  supported  and  some may never be because the communication protocol is still unknown
       (eg., SE 12000 P).

       Some scanners work faster when EPP/ECP is enabled in the BIOS. EPP mode however  may  lead
       to  hard-locks  on some Linux systems. If that is the case for you, you can either disable
       ECP/EPP in your BIOS or disable it in the backend itself (see GLOBAL OPTIONS).

       Note that the backend needs to run as root or has to have  appropriate  access  rights  to
       /dev/parport*  if  libieee1284 support is compiled in. To allow user access to the scanner
       run the backend through the network interface (See saned(8) and  sane-net(5)).  Note  also
       that  the  backend  does  not  support  parport  sharing,  i.e.  if you try printing while
       scanning, your computer  may  crash.  To  enable  parport  sharing,  you  have  to  enable
       libieee1284 at compile time. This backend also conflicts with the sane-musteka4s2 backend.
       You can only enable one of them in your dll.conf. However, you have to enable the  backend
       explicitly in your dll.conf, just remove the hash mark in the line "mustek_pp".


       This  backend  allows multiple devices being defined and configured via the mustek_pp.conf
       file (even simultaneously, provided that they are connected to different parallel  ports).
       Please make sure to edit this file before you use the backend.

       A device can be defined as follows:

              scanner <name> <port name> <driver>


       <name>  is  an  arbitrary  name  for the device, optionally enclosed by double quotes, for
              instance "LifeTec 9350".

       <port name> is the name of the parallel port to which the device  is  connected.  In  case
              libieee1284  is  used  for  communication with the port (default setup), valid port
              names are parport0, parport1, and parport2.

       In case the backend is configured for raw IO (old setup), port addresses have to  be  used
       instead  of  port names: 0x378, 0x278, or 0x3BC.  The mapping of parallel ports (lp0, lp1,
       and lp2) to these addresses can be different for  different  Linux  kernel  versions.  For
       instance,  if  you are using a Kernel 2.2.x or better and you have only one parallel port,
       this port is named lp0 regardless of the base address. However, this backend requires  the
       base  address  of  your port. If you are not sure which port your scanner is connected to,
       have a look at your /etc/conf.modules, /etc/modules.conf and/or /proc/ioports.

       If you are unsure which port to use, you can use the magic  value  *  to  probe  for  your

       <driver> is the driver to use for this device. Currently available drivers are:

              cis600   : for 600 CP, 96 CP & OEM versions
              cis1200  : for 1200 CP & OEM versions
              cis1200+ : for 1200 CP+ & OEM versions
              ccd300   : for 600 IIIE P & OEM version

              Choosing the wrong driver can damage your scanner!
              Especially,  using  the  1200CP  settings on a 600CP can be harmful. If the scanner
              starts making a loud noise, turn it off immediately !!!

       Using the cis600 driver on a 1200CP or a 1200CP+ is probably not dangerous.  The  cis1200+
       driver also works for the 1200CP, and using the cis1200 driver on a 1200CP+ will typically
       result in scans that cover only half of the width of the scan area (also not dangerous).

       If unsure about the exact model of your OEM version, check the optical resolution  in  the
       manual  or  on the box: the 600CP has a maximum optical resolution of 300x600 DPI, whereas
       the 1200CP and 1200CP+ have a maximum optical resolution of 600x1200 DPI.


              scanner "LifeTec 9350" 0x378 cis1200

              scanner Mustek_600CP 0x378 cis600

              scanner Mustek_600IIIEP * ccd300

       If in doubt which port you have to use, or whether your scanner is detected  at  all,  you
       can use sane-find-scanner -p to probe all configured ports.


       The contents of the mustek_pp.conf file is a list of device definitions and device options
       that correspond to Mustek scanners.  Empty lines and lines starting with a hash  mark  (#)
       are ignored. Options have the following format:

              option <name> [<value>]

       Depending  on the nature of the option, a value may or may not be present.  Options always
       apply to the scanner definition that precedes them. There are no global  options.  Options
       are also driver-specific: not all drivers support all possible options.

   Common options
       bw <value>
              Black/white  discrimination  value to be used during lineart scanning. Pixel values
              below this value are assumed to be black, values above are assumed to be white.
              Default value: 127
              Minimum:         0
              Maximum:       255

              Example:  option bw 150

   CIS driver options
       top_adjust <value>
              Vertical adjustment of the origin, expressed in millimeter (floating point).   This
              option  can be used to calibrate the position of the origin, within certain limits.
              Note that CIS scanners are probably  temperature  sensitive,  and  that  a  certain
              inaccuracy may be hard to avoid. Differences in offset between runs in the order of
              1 to 2 mm are not unusual.
              Default value: 0.0
              Minimum:      -5.0
              Maximum:       5.0

              Example:  option top_adjust -2.5

              Turns fast skipping to the start of the scan region off. When the  region  to  scan
              does not start at the origin, the driver will try to move the scanhead to the start
              of the scan area at the fastest possible speed. On some models, this may not  work,
              resulting  in  large inaccuracies (up to centimeters).  By setting this option, the
              driver is forced to use normal speed during  skipping,  which  can  circumvent  the
              accuracy  problems.  Currently,  there  are  no  models  for which these inaccuracy
              problems are known to occur.

              By default, fast skipping is used.

              Example:  option slow_skip

       engine_delay <value>
              Under normal circumstances, it is sufficient for the driver to wait for the scanner
              signaling  that  the  engine  is  stable,  before  a  new  engine  command  can  be
              transmitted. In rare cases, certain scanners and/or parallel port  chipsets  appear
              to prevent reliable detection of the engine state. As a result, engine commands are
              transmitted too soon and the movement  of  the  scanner  head  becomes  unreliable.
              Inaccuracies  ranging  up  to  10  cm  over the whole vertical scan range have been
              reported. To work around this problem, the engine_delay option can be set. If it is
              set,  the  driver  waits  an  additional amount of time after every engine command,
              equal to the engine_delay parameter, expressed  in  milliseconds.  It  practice  an
              engine_delay of 1 ms is usually sufficient. The maximum delay is 100 ms.

              Note  that  every  additional  ms  of  delay  can add up to 14 seconds to the total
              scanning time (highest resolution), so an as small as possible value is preferred.

              Default value:   0
              Minimum:         0
              Maximum:       100

              Example:  option engine_delay 1

   CCD driver options
       top <value>
              Number of scanlines to skip to the start of the scan area. The number  can  be  any
              positive integer. Values known to me are 47 and 56.

              Default value: 47
              Minimum:       0
              Maximum:       none

              Example:  option top 56

       waitbank <value>
              The  number  of  usecs  to  wait for a bank change. You should not touch this value
              actually. May be any positive integer

              Default value: 700
              Minimum:       0
              Maximum:       none

              Example:  option waitbank 700

       A sample configuration file is shown below:

       # LifeTec/Medion 9350 on port 0x378
       scanner "LifeTec 9350" 0x378 cis1200

       # Some calibration options (examples!).
       option bw 127
       option top_skip -0.8

       # A Mustek 600CP on port 0x3BC
       scanner "Mustek 600CP" 0x3BC cis600

       # Some calibration options (examples!).
       option bw 120
       option top_skip 1.2

       # A Mustek 1200CP+ on port 0x278
       scanner "Mustek 1200CP plus" 0x278 cis1200+

       # Some calibration options (examples!).
       option bw 130
       option top_skip 0.2

       # A Mustek 600 III EPP on port parport0
       scanner "Mustek 600 III EPP" parport0 ccd300

       # Some calibration options (examples!).
       option bw 130
       option top 56


       You can control the overall behaviour of the mustek_pp backend  by  global  options  which
       precede any scanner definition in the mustek_pp.conf file.

       Currently, there is only one global option:

   Global options
       no_epp Disable parallel port mode EPP: works around a known bug in the Linux parport code.
              Enable this option, if the backend hangs when trying to access the parallel port in
              EPP mode.

              Default value: use EPP

              Example:  option no_epp


              The backend configuration file (see also description of SANE_CONFIG_DIR below).

              The static library implementing this backend.

              The  shared  library  implementing  this  backend  (present on systems that support
              dynamic loading).


              This environment variable specifies the list of directories that  may  contain  the
              configuration  file.   Under  UNIX, the directories are separated by a colon (`:'),
              under OS/2, they are separated by a semi-colon (`;').  If this variable is not set,
              the  configuration  file is searched in two default directories: first, the current
              working directory (".") and then in @CONFIGDIR@.  If the value of  the  environment
              variable  ends with the directory separator character, then the default directories
              are searched after the explicitly  specified  directories.   For  example,  setting
              SANE_CONFIG_DIR  to  "/tmp/config:"  would result in directories "tmp/config", ".",
              and "@CONFIGDIR@" being searched (in this order).

              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.

              level   debug output
               0      nothing
               1      errors
               2      warnings & minor errors
               3      additional information
               4      debug information
               5      code flow (not supported yet)
               6      special debug information

              This variable sets the debug level for the SANE interface for  the  Mustek  chipset
              A4S2.  Note  that  enabling this will spam your terminal with some million lines of
              debug output.

              level   debug output
               0      nothing
               1      errors
               2      warnings
               3      things nice to know
               4      code flow
               5      detailed code flow
               6      everything


       sane(7), sane-mustek(5), sane-net(5), saned(8), sane-find-scanner(1)

       For latest bug fixes and information see

       For additional information on the CIS driver, see


       Jochen Eisinger <jochen at penguin-breeder dot org>
       Eddy De Greef <eddy_de_greef at scarlet dot be>


       Too many... please send bug reports to (note  that  you
       have   to   subscribe   first   to   the   list   before   you   can  send  emails...  see


       If something doesn't work, please contact us (Jochen for the CCD scanners,  Eddy  for  the
       CIS scanners). But we need some information about your scanner to be able to help you...

       SANE version
              run "scanimage -V" to determine this

       the backend version and your scanner hardware
              run  "SANE_DEBUG_MUSTEK_PP=128  scanimage  -L" as root. If you don't get any output
              from the mustek_pp backend, make sure a line  "mustek_pp"  is  included  into  your
              @CONFIGDIR@/dll.conf.  If your scanner isn't detected, make sure you've defined the
              right port address in your mustek_pp.conf.

       the name of your scanner/vendor
              also a worthy information. Please also include the optical resolution and lamp type
              of your scanner, both can be found in the manual of your scanner.

       any further comments
              if  you  have  comments about the documentation (what could be done better), or you
              think I should know something, please include it.

                                           13 Jul 2008                          sane-mustek_pp(5)