sane-u12 man page on JazzOS

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sane-u12(5)		 SANE Scanner Access Now Easy		   sane-u12(5)

       sane-u12	 -  SANE  backend  for	Plustek USB flatbed scanners, based on
       older parport designs

       The sane-u12 library implements a SANE (Scanner Access Now Easy)	 back‐
       end  that  provides  access  to USB flatbed scanners based on Plusteks'
       ASIC 98003 (parallel-port  ASIC)	 and  a	 GeneSys  Logics'  USB-parport
       bridge chip.

       The  backend  is	 able  to support some early Plustek USB scanner based
       their old parport design around the ASIC 98003 and other rebadged Plus‐
       tek devices. The following tables will give you a short overview.

       If  your Plustek scanner has another Product ID, then the device is NOT
       supported by this backend.

       Vendor Plustek - ID: 0x07B3
       Model:			Vendor-ID:	 Product-ID:
       OpticPro U12		0x07B3		 0x0001
       OpticPro U1212		0x07B3		 0x0001
       OpticPro UT12		0x07B3		 0x0001

       Vendor KYE/Genius
       USB Model:		Vendor-ID:	 Product-ID:
       ColorPage Vivid III USB	0x07B3		 0x0001
       ColorPage HR6 V1		0x0458		 0x2004

       To use your scanner with this backend, you need at least two entries in
       the	  configuration	       file	  /system/resources/sane-back‐
	      [usb] vendor-id product-id
	      device /dev/usbscanner

       [usb] tells the backend, that the following devicename (here  /dev/usb‐
       scanner)	 has  to  be interpreted as USB scanner device. If vendor- and
       product-id has not been specified, the backend tries to detect this  by
       its  own.  If  device  is  set to auto then the next matching device is

       The Options:

       option warmup t
	      t specifies the warmup period in seconds

       option lampOff t
	      t is the time in seconds for switching off the lamps in  standby

       option lOffonEnd b
	      b specifies the behaviour when closing the backend, 1 --> switch
	      lamps off, 0 --> do not change lamp status

       See the u12.conf file for examples.

       You have to make sure, that the USB subsystem is loaded	correctly  and
       you  have  access to the device-node. For more details see sane-usb (5)
       manpage. You might use sane-find-scanner to check that you have	access
       to your device.

       If there's no configuration file, the backend defaults to device auto

	      The backend configuration file

	      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 config‐
	      uration file is searched in two default directories: first,  the
	      current	 working   directory   (".")   and   then   in	 /sys‐
	      tem/resources/sane-backends/1.0.18/etc/sane.d.  If the value  of
	      the environment variable ends with the directory separator char‐
	      acter, 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	 "/system/resources/sane-back‐
	      ends/1.0.18/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.
	      Higher debug levels increase the verbosity of the output.

	      Example: export SANE_DEBUG_U12=10

       sane(7), sane-usb(5), sane-plustek(5),

       Please send any information and bug-reports to:
       SANE Mailing List

       Additional info and hints can be obtained from our
       Mailing-List archive at:

       or directly from the projects' homepage at:

       To obtain debug messages from the backend, please set the  environment-
       variable	 SANE_DEBUG_U12	 before	 calling  your	favorite scan-frontend
       (i.e. xscanimage).
       i.e.: export SANE_DEBUG_U12=20 ; xscanimage

       The value controls the verbosity of the backend.

       * The driver is in alpha state, so please don't expect too much!!!

       * When using libusb, it might be, that  the  backend  hangs.   In  that
       case, reconnect the scanner.

sane-backends 1.0.18		 18 June 2004			   sane-u12(5)

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