.TH sane-plustek 5 "23 August 2000" .IX sane-plustek .SH NAME sane-plustek - SANE backend for Plustek parallel port flatbed scanners .SH DESCRIPTION The .B sane-plustek library implements a SANE (Scanner Access Now Easy) backend that provides access to Plustek parallel port flatbed scanners. The backend needs the kernel module pt_drv which currently can be downloaded from .br .B http://home.t-online.de/home/g-jaeger/plustek.html .br At present, the following scanners should work with this backend: .PP Model: ASIC: Properties: .br ---------------------- ----- ------------------------ .br OpticPro 9636T/12000T 98001 600x1200 dpi 36bit 512Kb .br OpticPro 12000P Turbo 98001 600x1200 dpi 36bit 512Kb .br OpticPro 9636P+/Turbo 98001 600x1200 dpi 36bit 512Kb .br OpticPro 9636P 98001 600x1200 dpi 36bit 512Kb .br OpticPro 12000P/96000P 96003 600x1200 dpi 30bit 128Kb .br OpticPro 9630P/FBIV 96003 600x1200 dpi 30bit 128Kb .br OpticPro 9630PL (14") 96003 600x1200 dpi 30bit 128Kb .br OpticPro 600P/6000P 96003 300x600 dpi 30bit 32Kb .br OpticPro 4831P 96003 300x600 dpi 30bit 32Kb .br OpticPro 4830P/FBIII 96003 300x600 dpi 30bit 32Kb .br OpticPro 4800P/FBII 96001 300x600 dpi 24bit 32Kb .br .PP .SH "OTHER PLUSTEK SCANNERS" This driver only supports the parallelport scanners from Plustek. It is not planned to support the USB devices (OP 1212U, U12, UT12). The SCSI scanner OpticPro 19200S is a rebadged Artec AM12S scanner and is supported by the .B Artec backend. ASIC 98003 based models (OpticPro P8, P12 and PT12) are currently not supported. .PP .SH "PRIMAX SCANNERS" There are some scanners sold by Primax, but they are in fact Plustek devices. These scanners are also supported. The following table will show the relationship: .PP Model: Plustek Model: Remarks: .br --------------------------- -------------- ------------ .br Colorado 4800 OpticPro 4800 not tested .br Colorado 4800 Direct OpticPro 600 mov=2 .br Colorado 4800 Direct 30bit OpticPro 4830 not tested .br Colorado 9600 Direct 30bit OpticPro 9630 not tested .PP .SH "DEVICE NAMES" This backend expects a default device called: .PP .RS .I /dev/pt_drv .RE .PP This default device will be used, if no configuration file can be found. .PP The device-driver is currently not part of the SANE distribution. It has to be downloaded from: .br .B http://home.t-online.de/home/g-jaeger/plustek.html .br See the INSTALL file there for a proper setup. Currently only Linux is supported by this driver (Kernel 2.2.x and higher). .PP As the backend and the driver support up to four devices per system, it is possible to specify them in the configuration file .PP .RS .I @CONFIGDIR@/plustek.conf .RE .PP See the plustek.conf file for examples. .PP .SH CONFIGURATION .PP As the driver is a loadable kernel module, it is configured by invoking insmod with the approriate parameters or appending the options to the file .B /etc/conf.modules .PP .B The Options: .br lampoff=lll .RS The value .I lll tells the driver, after how many seconds to switch-off the lamp(s). The default value is 180. 0 will disable this feature. .br .B HINT: Do not use a value that is too small, because often switching on/off the lamps will reduce their lifetime. .RE .PP port=ppp .RS .I ppp specifies the port base address, where the scanner is connected to. The default value is 0x378 which normaly is standard. .RE .PP warmup=www .RS .I www specifies the time in seconds, how long a lamp has to be on, until the driver will start to scan. The default value is 30. .RE .PP lOffonEnd=e .RS .I e specifies the behaviour when unloading the driver, 1 --> switch lamps off, 0 --> do not change lamp status .RE .PP mov=m .RS .I m =0 - default: no override .br .I m =1 - OpticPro 9630PL override (works if OP9630 .br has been detected) forces legal size (14") .br .I m =2 - Primax 4800Direct override (works if OP600 .br has been detected) swaps red/green color .br .I m =3 - OpticPro 9636 override (works if OP9636 has .br been detected) disables backends .br transparency/negativ capabilities .br .I m =4 - OpticPro 9636P override (works if OP9636 has .br been detected) disables backends .br transparency/negativ capabilities .br and R/W test during startup .br .RE .PP Sample entry for file .B /etc/conf.modules : .br .I alias char-major-40 pt_drv .br .I post-install pt_drv modprobe -k parport .br .I options pt_drv lampoff=180 warmup=15 port=0x378 lOffonEnd=0 mov=0 .PP For multidevice support, simply add values separated by commas to the different options .br .I options pt_drv port=0x378,0x278 mov=0,4 .PP Remember to call depmod after changing /etc/conf.modules. .PP .SH "PARALLEL PORT MODES" .PP The current driver works best, when the parallel port has been set to EPP-mode. When detecting any other mode such as ECP or PS/2 the driver tries to set to a faster, supported mode. If this fails, it will use the SPP mode, as this mode should work with all Linux supported parallel ports. .PP Former Plustek scanner models (4830, 9630) supplied a ISA parallel port adapter card. This card is .BR not supported by the driver. .PP The ASIC 96001/3 based models have sometimes trouble with high resolution modes. If you encounter sporadic corrupted images (parts duplicated or shifted horizontally) kill all other applications before scanning and (if sufficient memory available) disable swapping. .PP .SH FILES .TP .I @CONFIGDIR@/plustek.conf The backend configuration file .TP .I @LIBDIR@/libsane-plustek.a The static library implementing this backend. .TP .I @LIBDIR@/libsane-plustek.so The shared library implementing this backend (present on systems that support dynamic loading). .TP .I /lib/modules//misc/pt_drv.o The Linux Kernelmodule. .PP .SH "CONTACT AND BUG-REPORTS" .PP Please send any information and bug-reports to: .br .B Gerhard Jaeger .PP Additional info and hints can be obtained in our .br Mailing-List archive at: .br .B http://www.linuxhacker.org/listscgi-bin/ezmlm-cgi/3 .PP .SH "BUGS & RESTRICTIONS" .PP .br * The Halftoning works, but the quality is poor .br * Printers (especially HP models) will start to .br print during scanning. This in fact is a problem .br to other printers too, using bidirectional protocol .br (see www.plustek.com (TAIWAN) page for further details) .br * The driver does not support these manic scalings up .br to 16 times the physical resolution. The only scaling .br is done on resolutions between the physical resolution .br of the CDD-sensor and the stepper motor i.e. you have a .br 600x1200 dpi scanner and you are scanning using 800dpi, .br so scaling is necesary, because the sensor only delivers .br 600dpi but the motor is capable to perform 800dpi steps. .br * On some devices, the pictures seems to be bluished .PP ASIC 98001 based models: .br * The 300dpi transparency and negative mode does not work .br correctly. .br * The gray mode for transparency and negative sources will .br not work correctly. .br * There is currently no way to distinguish a model with .br and without transpareny unit. .br * The scanned images seem to be too dark (P9636T) .PP ASIC 96003/1 based models: .br 30bit mode is currently not supported. .br * On low-end systems and under heavy system load, the .br driver will loosing data, this might causes the sensor .br to hit the scan-bed and/or the picture is corrupted. .br * The scanspeed on 600x1200 dpi models is slow. .br