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NAME    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

       The sane-mustek_pp library implements a SANE (Scanner Access Now  Easy)
       backend	that provides access to Mustek parallel port flatbed scanners.
       The following scanners might work with this backend:

	      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 	 partly
	      SM 1200 ED Plus	   1015      01 	 partly
	      SE 12000 P	   1505      05 	 no
	      SE 600 CP 	   1015      00 	 no (*)
	      SM 600 CP 	   1015      00 	 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
	      MD985x		   1015      01/05	 no (*)
	      LT9891		   1015      01 	 no (*)

       (*) These scanners are currently not supported by the  default  driver,
       but patches are available; see CIS Scanners.

       Please note that this backend is still under construction. I don't know
       which scanners work or which will work in future releases.

       There are two possible reasons a Mustek scanner doesn't work... a)  the
       protcol is still unknown (SE 12000 P) or b) it's a CIS scanner (all the
       others). See CIS Scanners for an explaination why.

       Some scanners work faster when EPP/ECP is enabled in the BIOS.

       Note that the backend needs to run as root. To allow user access to the
       scanner run the backend through the network interface (See saned(1) and
       sane-net(5)). Note also that the backend does not support parport shar-
       ing , i.e. if you try printing while scanning, your computer may crash.
       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".

DEVICE NAMES    [Toc]    [Back]

       This backend expects device names of the form:

	      port addr

       Where addr is the base address of the port your scanner is attached to.
       Known ports are 0x378 (lp1) 0x278 (lp2) and 0x3BC (lp0). Note  that  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

       You can rename any device using the

	      name devname
	      model model
	      vendor vendor

       options. These options aply to the last port option.

CONFIGURATION    [Toc]    [Back]

       Please make sure to edit mustek_pp.conf before you use the backend.

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

       The  nine  options  supported  are  io-mode,  wait-bank,  strip-height,
       niceload, auth, wait-lamp, bw, use600, and buffer.

       Option io-mode defines the mode of the sanei_pa4s2 interface.  Possible
       values  are try_mode_uni and alt_lock.  This option may appear for each
       possible value. try_mode_uni allows the UNI port mode, however this may
       disable	the  (better) EPP mode. alt_lock toggles between two different
       ways to lock the port for scanner access.  This option must come before
       any port definition or it won't have the effect you'd expect.

       Option  wait-bank  defines  the maximal time in msecs the backend waits
       for the bank to change. The default value is 700.  If  this  option  is
       given  after  the  port	option,  only this device is affected. If this
       value is to low, you will get wrong colors and stripes in  the  scanned

       Option  strip-height  is a option that limits the maximum height of the
       strip scanned with a single read command.  The height is  specified  in
       lines.  If this option is given after the port option, only this device
       is affected. A strip-height of zero allows to scan as much as fits into
       the scan buffer.

       Option  niceload  tries	to avoid to heavy load. Note that this reduces
       scan speed. This is a global option.

       Option auth turns on user authentification for this scanner.  Use  this
       if  you	want  access  control  and if you have enabled this at compile
       time. This option must come after a port option. At  the  moment,  this
       option isn't really supported.

       Option  wait-lamp  allows you to control the time the backend waits for
       the lamp to warm up. The time is specified in secs. The	default  value
       is 5 secs. Some scanners need longer to warm up. A value of 0 makes the
       backend start without waiting.  However the backend will wait at  least
       2 secs before turning the lamp off again. If this option is given after
       a port option it affects only this device.

       Option bw defines the maximal color value that is considered  black  in
       lineart scans.  The default value is 127. Possible values are between 0
       and 255. If this option is given after a port option  it  affects  only
       this device.

       Option  use600  enables the 600 dpi handling code. It's not possible to
       detect wether a scanner has an optical resolution  of  300x600  dpi  or
       600x1200  dpi.  The  default  is  to use the 300x600 dpi code. Use this
       option only if your scanner has an optical resolution of 600x1200  dpi.
       This is a local only option.

       Option  buffer  allows  you  to change the size of the scan buffer. The
       size must be specified in bytes. The default value is  1  megabyte.  If
       this  opttion  is  given  after	the  port  option, only this device is
       affected. If you have limited the strip-height, you only  need  a  scan
       buffer of

	      8.5 * dpi * 3 * strip-height bytes.

       A sample configuration file is shown below:

	      # GLOBAL #

	      # enable this option, if you think your scanner
	      # supports the UNI protocol
	      # note however that this might disable the better
	      # EPP protocol
	      #option io-mode try_mode_uni

	      # choose between two different ways to lock to port
	      option io-mode alt_lock

	      # set the maximal height (in lines) of a strip
	      # scanned (default: no limit)
	      #option strip-height 0

	      # wait n msecs for bank to change (default: 700
	      # msecs) if this value is to low, stripes my appear
	      # in the scanned image
	      #option wait-bank 700

	      # size (in bytes) of scan buffer (default:
	      # 1 megabyte)
	      #option buffer 1048576

	      # try to avoid to heavy load. Note that this
	      # reduces scan speed
	      option niceload

	      # Define the time the lamp has to be on before
	      # scan starts (default 5 secs)
	      #option wait-lamp 5

	      # DEVICES #

	      # specify the port your scanner is connected to.
	      # Possible are 0x378 (lp1) 0x278 (lp2) and
	      # 0x3bc (lp0)
	      port 0x378

	      # the following options are local to this scanner

	       # scan maximal 16 lines for one sane_read() call
	       option strip-height 16

	       # we just need 16 * 3 * 300 * 8.5 bytes
	       option buffer 122400

	       # this scanner needs max 250 msecs to change
	       # the bank
	       option wait-bank 250

	       # My scanner is a MD9848 from Medion using the
	       # Mustek chipset
	       name MD9848
	       vendor Medion

	       # Enable this option, if you want user
	       # authentification *and* if it's enabled at
	       # compile time
	       #option auth

	       # Some scanners (especially ASIC 1013) need
	       # longer to warm up. This option specifies
	       # the time to wait for the lamp to get hot
	       #option wait-lamp 15

	       # Use this option to define the maximal
	       # black value in lineart scans
	       #option bw 127

	       # Use this option for 600 dpi scanners
	       # for example ScanExpress 1200 ED Plus
	       #option use600

CIS Scanners    [Toc]    [Back]

       Some  Mustek Scanners use so called contact image sensors (CIS) instead
       of cold cathode devices (CCD). These scanners have a totally  different
       protocol; they are currently not supported by the default driver.

       However,  patches are available that support most of the CIS type scanners.
  Check out the homepage of Eddy De Greef for these  patches  (see
       the SEE ALSO section).

       These  patches  have been reported to work on the Mustek 600CP, 1200CP,
       and 1200CP+ models, and	various  OEM  versions	(LifeTec/Medion  9350,
       9351,  9850,  9851, 9858, 9890, and 9891; Trust Easy Connect 9600 plus;
       Targa Funline TS12EP).

       When installing these patches, 3 additional options  are  available  in
       the  mustek_pp.conf  configuration  file  (see  CONFIGURATION): cis600,
       cis1200, cis1200+.

       These options select the 600CP,	1200CP,  or  1200CP+  version  of  the
       driver.	One of them must be set.

       The  600CP  has a maximum resolution of 300x600 DPI, whereas the 1200CP
       and 1200CP+ have a maximum resolution of 600x1200 DPI. The option  must
       match your scanner. If unsure, check the manual or the box.
       Choosing the wrong option could 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 !!!

       The cis...  options cannot be combined with the use600 option.

       Currently,  when installing the CIS patches, support for CCD type scanners
 is disabled. In future versions of the sane-mustek_pp backend, the
       CIS  patches  will be integrated and support for both types of scanners
       will co-exist.

FILES    [Toc]    [Back]

	      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).

ENVIRONMENT    [Toc]    [Back]

	      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

       SANE_DEBUG_MUSTEK_PP    [Toc]    [Back]
	      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

       SANE_DEBUG_SANEI_PA4S2    [Toc]    [Back]
	      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

SEE ALSO    [Toc]    [Back]

       sane(7), sane-mustek(5), sane-net(5), saned(1)

       Patches for CIS scanner

       For latest bug fixes and information see

AUTHOR    [Toc]    [Back]

       Jochen Eisinger <jochen.eisinger@gmx.net>

BUGS    [Toc]    [Back]

       Too many... please send bug  reports  to  sane-devel@mostang.com  (note
       that  you  have	to  subscribe  first  to  the list before you can send
       emails... see http://www.mostang.com/sane/mail.html)

	      * 1013 support isn't bullet proofed
	      * 1505 support isn't even present
	      * 1015 only works for CCD type 00 & 01 (01 only bw/grayscale)

BUG REPORTS    [Toc]    [Back]

       If something doesn't work, please contact me. But I 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

				 21 April 2001		     sane-mustek_pp(5)
[ Back ]
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