kopia lustrzana https://gitlab.com/sane-project/backends
378 wiersze
12 KiB
Groff
378 wiersze
12 KiB
Groff
.TH sane-hp 5 "28 April 2001"
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.IX sane-hp
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.SH NAME
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sane-hp - SANE backend for HP ScanJet scanners
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.SH DESCRIPTION
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The
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.B sane-hp
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library implements a SANE (Scanner Access Now Easy) backend that
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provides access to HP ScanJet scanners and OfficeJet multi-function
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peripherals (MFPs) which support SCL (Scanner Control Language by HP).
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At present, the following
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scanners are known positively to work with this backend:
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.PP
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.RS
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Model: Product id: Interface:
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.br
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---------- ----------- ----------
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.br
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ScanJet Plus C9195A HP Parallel Interface Card
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.br
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ScanJet IIc C1750A 3226 SCSI
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.br
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ScanJet IIcx C2500A 3332 SCSI
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.br
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ScanJet IIp C1790A SCSI
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.br
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ScanJet 3C C2520A 3503 SCSI
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.br
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ScanJet 3P C2570A 3406 SCSI
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.br
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ScanJet 4C C2520A SCSI
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.br
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ScanJet 4P C1130A 3540 SCSI
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.br
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ScanJet 4100C C6290A USB
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.br
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ScanJet 5P C5110A SCSI
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.br
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ScanJet 5100C C5190A parallel port
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.br
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ScanJet 5200C C7190A 3846 parallel port/USB
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.br
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ScanJet 6100C C2520A 3644 SCSI
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.br
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ScanJet 6200C C6270A 3828 SCSI/USB
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.br
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ScanJet 6250C C6270A 3828 SCSI/USB
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.br
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ScanJet 6300C C7670A SCSI/USB
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.br
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ScanJet 6350C C7670A SCSI/USB
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.br
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ScanJet 6390C C7670A SCSI/USB
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.br
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PhotoSmart C5100A R029,R030,R032 SCSI
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.br
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OfficeJet Pro 1150C PTAL
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.br
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OfficeJet Pro 1170C/1175C PTAL
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.br
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OfficeJet R series PTAL
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.br
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PSC 500 series PTAL
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.br
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OfficeJet G series PTAL
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.br
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PSC 700 series PTAL
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.br
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OfficeJet K series PTAL
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.br
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OfficeJet V series PTAL
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.RE
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.PP
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Support for models 5100C/5200C connected to the parallel port requires
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the ppSCSI driver available at http://www.torque.net/parport/ppscsi.html
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(under development)
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.PP
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Support for models 5200C/6200C/6250C/6300C/6350C connected to the USB requires
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an USB driver available at http://www.jump.net/~dnelson/linux/usb
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(under development)
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.PP
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Support for OfficeJet MFPs requires the "HP OfficeJet Linux driver",
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available at "http://hpoj.sourceforge.net". The "PTAL" (peripheral
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transport abstraction library) interface supports peripherals connected to a
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parallel port or USB (using the user-mode "ptal-mlcd" driver provided with
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hpoj-0.8 or later), or to a LAN with an HP JetDirect external print server.
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Supported parallel-port JetDirects include the 70X, 170X, 300X, and 500X
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(with firmware x.07.xx or later; x.08.xx or later required for
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the G and K series). The JetDirect 175X is supported for USB peripherals.
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.PP
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If you own a ScanJet scanner other than the ones listed above, please
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let us know if your model works with this backend. To do this, send a
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mail with the relevant information for your scanner to
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.IR sane\-devel@mostang.com .
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.SH "DEVICE NAMES"
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This backend expects device names of the form:
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.PP
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.RS
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.I special
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.RE
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.PP
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Where
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.I special
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is the UNIX path-name for the special device that corresponds to the
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scanner. For SCSI scanners the special device name must be a generic SCSI
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device or a symlink to such a device. Under Linux, such a device name could be
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.I /dev/sga
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or
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.IR /dev/sg2 ,
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for example. For the HP ScanJet Plus the special device name must be the device
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that corresponds to the parallel interface card that was shipped with the
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scanner. That is
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.I /dev/hpscan
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A special driver is required for this card.
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See ftp://rvs.ctrl-c.liu.se/pub/wingel/hpscan for details. If the link
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does not work, try ftp://sunsite.unc.edu/pub/Linux/kernel/patches/scanners.
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.PP
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For OfficeJets connected to a parallel port or USB, the format of
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.I special
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is
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.RS
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.I mlc:par:0
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.RE
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or
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.RS
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.I mlc:usb:0
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.RE
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respectively, substituting if necessary for "0" the suffix specified when
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invoking the ptal-mlcd driver.
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.PP
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For OfficeJets connected to an HP JetDirect print server, the format of
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.I special
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is
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.RS
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.I hpjd:HOSTNAME_OR_IP_ADDRESS[:PORT_NUMBER]
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.RE
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where
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.RS
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.I HOSTNAME_OR_IP_ADDRESS
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.RE
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is the hostname or dotted-decimal IP address of the JetDirect, and
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.RS
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.I PORT_NUMBER
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.RE
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is either 1, 2, or 3 to select the port number on a three-port
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JetDirect 500X. The default is port 1.
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.SH CONFIGURATION
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The contents of the
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.I hp.conf
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file is a list of options and device names that correspond to HP ScanJet
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scanners. Empty lines and lines starting with a hash mark
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(#) are ignored. See sane-scsi(5) on details of what constitutes
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a valid device name.
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.PP
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Options specified infront of the first line that keeps a device name
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are defaults for all devices. Options specified below a line that
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keeps a device name apply just to the most recently mentioned device.
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.PP
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Supported options are
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.BR connect-scsi ,
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.BR connect-device ,
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.BR connect-ptal
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and
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.BR enable-image-buffering .
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Option
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.B connect-scsi
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specifies that the scanner is connected to the system by SCSI.
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Input/output is performed using SCSI-commands.
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This is the default.
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Option
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.B connect-device
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specifies that the scanner is connected to the system by a special
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device. Input/output is performed by read()/write()-operations
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on the device. This option must be used for HP ScanJet Plus and
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scanners connected to the USB. However if the scanner requires an USB
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driver that simulates a SCSI device, connect-scsi might be used.
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Option
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.B connect-ptal
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specifies that the scanner uses the PTAL interface via the libptal
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shared library. This option must be used for the OfficeJet MFPs.
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Support for OfficeJet MFPs is added to the backend at compile time.
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If you get the error message "hp-backend not compiled with PTAL support",
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you need to install PTAL (see above) and rebuild SANE (running configure
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and make).
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Option
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.B enable-image-buffering
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stores the scanned image in memory before passing it to the frontend. Could be
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used in case of forward/backward moving scanner lamp.
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.PP
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A sample configuration file is shown below:
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.PP
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.RS
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/dev/scanner
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.br
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# this is a comment
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.br
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/dev/hpscan
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.br
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option connect-device
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.RE
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.PP
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/dev/scanner is typically a symlink to the actual scanner device.
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.PP
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A sample configuration file for OfficeJets is shown below:
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.PP
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.RS
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# SCSI scanner:
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.br
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/dev/scanner
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.PP
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# Parallel-port-connected MFP:
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.br
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mlc:par:0
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.br
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option connect-ptal
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.PP
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# USB-connected MFP:
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.br
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mlc:usb:0
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.br
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option connect-ptal
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.PP
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# JetDirect-connected MFPs:
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.br
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hpjd:my-jdex.my-domain.com
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.br
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option connect-ptal
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.br
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hpjd:my-500x.my-domain.com:3
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.br
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option connect-ptal
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.br
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hpjd:10.10.10.35:2
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.br
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option connect-ptal
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.RE
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.SH FILES
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.TP
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.I @CONFIGDIR@/hp.conf
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The backend configuration file (see also description of
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.B SANE_CONFIG_DIR
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below).
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.TP
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.I @LIBDIR@/libsane-hp.a
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The static library implementing this backend.
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.TP
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.I @LIBDIR@/libsane-hp.so
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The shared library implementing this backend (present on systems that
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support dynamic loading).
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.TP
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.I $HOME/.sane/calib-hp:<device>.dat
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Calibration data for HP PhotoSmart PhotoScanner that is retrieved from the
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scanner after calibration. The data is uploaded to the scanner at start
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of the backend if it is in media mode 'print media' or if the media mode is
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changed to 'print media'.
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.SH ENVIRONMENT
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.TP
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.B SANE_CONFIG_DIR
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This environment variable specifies the list of directories that may
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contain the configuration file. Under UNIX, the directories are
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separated by a colon (`:'), under OS/2, they are separated by a
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semi-colon (`;'). If this variable is not set, the configuration file
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is searched in two default directories: first, the current working
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directory (".") and then in @CONFIGDIR@. If the value of the
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environment variable ends with the directory separator character, then
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the default directories are searched after the explicitly specified
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directories. For example, setting
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.B SANE_CONFIG_DIR
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to "/tmp/config:" would result in directories "tmp/config", ".", and
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"@CONFIGDIR@" being searched (in this order).
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.TP
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.B SANE_DEBUG_HP
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If the library was compiled with debug support enabled, this
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environment variable controls the debug level for this backend. E.g.,
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a value of 128 requests all debug output to be printed. Smaller
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levels reduce verbosity.
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.SH BUGS
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.TP
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.B HP PhotoSmart PhotoScanner
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In media mode 'slide' and 'negative', scan resolutions are rounded to
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multiple of 300 dpi. The scanner does not scale the data correctly
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on other resolutions. Some newer models (firmware code R030 and later)
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do not support adjustment of contrast/intensity level and tone map.
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The backend will simulate this by software, but only for gray
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and 24 bit color.
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.TP
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.B Automatic Document Feeder (ADF)
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For use of the ADF with xscanimage(1), first place paper in the ADF and
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then change option scan source to 'ADF'. Press 'change document'
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to load a sheet. Then press 'scan' to start a scan.
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Maybe it is sufficient to press 'scan' without 'change document'
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for repeated scans. The use of the preview window is not recommended
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when working with the ADF.
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.TP
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.B Immediate actions
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Some actions in xscanimage(1) (i.e. unload, select media, calibrate)
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have an immediate effect on the scanner without starting a scan.
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These options can not be used with scanimage.
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.TP
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.B Advertised but unsupported commands
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Some actions, such as mirror, are advertised by the OfficeJets but actually
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have no effect. Contrast and brightness are simulated by the backend
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for these devices. >8-bit scans, which require xsane(1) anyway, may
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not work.
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.TP
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.B OfficeJet ADF issues
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The OfficeJet R and G series are capable of scanning 8.5"x14" documents
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in the ADF using a two-pass scanning method, but this is not currently
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supported in the backend. The OfficeJet 1175 and R series refuse to
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unload an ADF-loaded document after scanning, and instead display a
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message on the front panel prompting the user to remove the document
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from the glass and press a button to continue; the OfficeJet G series
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doesn't have this problem, however. The OfficeJet G, K, and V series
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automatically unload an ADF-loaded document when the scan channel is closed,
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particularly after an idle timeout when connected to an HP JetDirect.
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.TP
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.B OfficeJet K series and V series
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The K and V series feature a "scrollfed" scanner, where the paper is fed
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across a stationary scanhead, as opposed to flatbed, where the scanhead
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moves across the page. A consequence of this difference is that the
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document length is not known in advance; the scan stops when the end
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of the document is reached. To perform a scan, you must first click
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on "Change document", and then start your preview or regular scan.
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If necessary, click on "Cancel" when the scan stops. If there are more
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documents to scan, click on "Change document" again to advance to the
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next page and repeat the procedure; otherwise, click on "Unload" to
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completely unload the page. An alternative for non-preview scans is
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to set the page length (option "br-y") to slightly less than the known
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page length, for example, 10.5 inches for an 8.5"x11" page. This will
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eliminate the need to cancel the scan, but you still need to click on
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"Change document" before each scan and "Unload" after the last page.
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Note that due to the use of the "Change document" and "Unload" options,
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you will probably not be able to use the command-line "scanimage" program
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with the K or V series, not even the "-T" or "--test" parameters.
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.SH TODO
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.TP
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.B HP PhotoSmart PhotoScanner
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PhotoScanners with firmware release R030 and up have
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no firmware support for contrast/brightness/gamma table. In the current
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backend this is simulated by software on 24 bits data.
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Simulation on 30 bits should give better results.
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.TP
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.B Data widths greater than 8 bits
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Custom gamma table does not work.
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.TP
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.B Parallel scanner support
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Beside the ScanJet Plus which came with its own parallel interface card,
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currently only the HP ScanJet 5100C/5200C are supported.
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These scanners are using an internal parallel-to-SCSI converter which
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is supported by the ppSCSI-driver (see above).
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.TP
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.B Scrollfed MFP support
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A separate backend is planned to properly support the OfficeJet K and V
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series, as well as other non-SCL HP MFPs, such as the OfficeJet 500, 600,
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700, T, and PSC 300 series and the LaserJet 1100A, 1220, and 3200.
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Experimental scanning support for these models is under development;
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see the HP OfficeJet Linux driver project at http://hpoj.sourceforge.net
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for more information.
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.TP
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.B LaserJet 3100 and 3150
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Support for the LaserJet 3100 and 3150 is NOT planned, because programming
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information for these models is not available. However, if you have a
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LaserJet 3150 connected to a JetDirect 70X/170X/300X/500X with firmware
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x.08.xx or later, you can scan using the JetDirect's embedded web server.
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.SH "SEE ALSO"
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sane(7), sane\-scsi(5)
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.SH AUTHOR
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The sane-hp backend was written by Geoffrey T. Dairiki. HP PhotoSmart
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PhotoScanner support by Peter Kirchgessner.
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HP OfficeJet support by David Paschal.
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