Provided by: libsane_1.0.17-1ubuntu4_i386 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.
              !  (This holds for any type of scanner).

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

       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 scanner.

       <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  noice,  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 preceeds
       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

           slow_skip  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 prefered.
                  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
                  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   preceed   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
              /etc/sane.d.  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  "/etc/sane.d"   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 <>
       Eddy De Greef <eddy_de_greef at tiscali dot be>


       Too    many...     please     send     bug     reports     to     sane- (note that you have to subscribe first to
       the  list  before  you  can   send   emails...   see   http://www.sane-


       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 /etc/sane.d/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

       some nice greetings

                               November 17 2003              sane-mustek_pp(5)