1sane-hp(5) SANE Scanner Access Now Easy sane-hp(5)
2
6 sane-hp - SANE backend for HP ScanJet scanners
7
9 The sane-hp library implements a SANE (Scanner Access Now Easy) backend
10 that provides access to HP ScanJet scanners which support SCL (Scanner
11 Control Language by HP). The following scanners are known positively
12 to work with this backend:
13 Model: Product id: Interface:
15 ---------- ----------- ----------
16 ScanJet Plus C9195A HP Parallel Interface Card
17 ScanJet IIc C1750A 3226 SCSI
18 ScanJet IIcx C2500A 3332 SCSI
19 ScanJet IIp C1790A SCSI
20 ScanJet 3C C2520A 3503 SCSI
21 ScanJet 3P C2570A 3406 SCSI
22 ScanJet 4C C2520A SCSI
23 ScanJet 4P C1130A 3540 SCSI
24 ScanJet 4100C C6290A USB
25 ScanJet 5P C5110A SCSI
26 ScanJet 5100C C5190A parallel port
27 ScanJet 5200C C7190A 3846 parallel port/USB
28 ScanJet 6100C C2520A 3644 SCSI
29 ScanJet 6200C C6270A 3828 SCSI/USB
30 ScanJet 6250C C6270A 3828 SCSI/USB
31 ScanJet 6300C C7670A SCSI/USB
32 ScanJet 6350C C7670A SCSI/USB
33 ScanJet 6390C C7670A SCSI/USB
34 PhotoSmart C5100A R029,R030,R032 SCSI
35 Support for models 5100C/5200C connected to the parallel port requires
37 the ppSCSI driver available at http://cyberelk.net/tim/par‐
38 port/ppscsi.html and http://penguin-breeder.org/kernel/download/.
39 Support for models 5200C/62X0C/63X0C connected to the USB require the
42 kernel scanner driver or libusb. See sane-usb(5) for more details.
43 The "hp" backend no longer supports OfficeJet multi-function peripher‐
45 als. For these devices use the external "hpoj" backend in version 0.90
46 and later of the "HP OfficeJet Linux driver", available at
47 http://hpoj.sourceforge.net
48 Because Hewlett-Packard does no longer produce scanners that support
50 SCL (beside the OfficeJets), the above list of supported scanners is
51 complete. Other HP scanners are not supported by the "hp" backend, but
52 might be supported by another one. See http://www.sane-project.org/.
53 You can also watch the sane-devel mailing list at http://www.sane-
54 project.org/mailing-lists.html.
55 More details about the hp backend can be found on its homepage
57 http://www.kirchgessner.net/sane.html.
58
60 This backend expects device names of the form:
61 special
63 Where special is the UNIX path-name for the special device that corre‐
65 sponds to the scanner. For SCSI scanners the special device name must
66 be a generic SCSI device or a symlink to such a device. Under Linux,
67 such a device name could be /dev/sga or /dev/sg2, for example. If the
68 special device name contains "usb", "uscanner" or "ugen", it is assumed
69 that the scanner is connected by USB. For the HP ScanJet Plus the spe‐
70 cial device name must be the device that corresponds to the parallel
71 interface card that was shipped with the scanner. That is /dev/hpscan.
72 A special driver is required for this card. See ftp://rvs.ctrl-
73 c.liu.se/pub/wingel/hpscan for details. If the link does not work, try
74 ftp://sunsite.unc.edu/pub/Linux/kernel/patches/scanners.
75
77 The contents of the hp.conf file is a list of options and device names
78 that correspond to HP ScanJet scanners. Empty lines and lines starting
79 with a hash mark (#) are ignored. See sane-scsi(5) and sane-usb(5) on
80 details of what constitutes a valid device name.
81 Options specified in front of the first line that contains a device
83 name are defaults for all devices. Options specified below a line that
84 contains a device name apply just to the most recently mentioned
85 device.
86 Supported options are connect-scsi, connect-device, enable-image-
88 buffering, and dumb-read.
89 Option connect-scsi specifies that the scanner is connected to the sys‐
91 tem by SCSI. Input/output is performed using SCSI-commands. This is
92 the default. But if your SCSI device name contains "usb", "uscanner"
93 or "ugen", option connect-scsi must be specified. Otherwise it is
94 assumed that the scanner is connected by USB.
95 Option connect-device specifies that the scanner is connected to the
97 system by a special device. Input/output is performed by
98 read()/write()-operations on the device. This option must be used for
99 HP ScanJet Plus or scanners connected to USB which are accessed through
100 a named device (e.g. /dev/usb/scanner0). For device names that contain
101 "usb", "uscanner" or "ugen", it is not necessary to specify option con‐
102 nect-device.
103 Option enable-image-buffering stores the scanned image in memory before
105 passing it to the frontend. Could be used in case of forward/backward
106 moving scanner lamp.
107 Option dumb-read can be used to work around problems with "Error during
109 device I/O". These problems may occur with certain SCSI-to-USB convert‐
110 ers or Buslogic SCSI cards. The option should not be used for SCSI
111 devices which are working correctly. Otherwise startup of frontends
112 and changing parameters might be slower.
113 A sample configuration file is shown below:
115 /dev/scanner
117 # this is a comment
118 /dev/hpscan
119 option connect-device
120 /dev/scanner is typically a symlink to the actual SCSI scanner device.
122
124 /etc/sane.d/hp.conf
125 The backend configuration file (see also description of
126 SANE_CONFIG_DIR below).
127 /usr/lib*/sane/libsane-hp.a
129 The static library implementing this backend.
130 /usr/lib*/sane/libsane-hp.so
132 The shared library implementing this backend (present on systems
133 that support dynamic loading).
134 $HOME/.sane/calib-hp:<device>.dat
136 Calibration data for HP PhotoSmart PhotoScanner that is
137 retrieved from the scanner after calibration. The data is
138 uploaded to the scanner at start of the backend if it is in
139 media mode 'print media' or if the media mode is changed to
140 'print media'.
141
143 SANE_CONFIG_DIR
144 This environment variable specifies the list of directories that
145 may contain the configuration file. Under UNIX, the directories
146 are separated by a colon (`:'), under OS/2, they are separated
147 by a semi-colon (`;'). If this variable is not set, the config‐
148 uration file is searched in two default directories: first, the
149 current working directory (".") and then in /etc/sane.d. If the
150 value of the environment variable ends with the directory sepa‐
151 rator character, then the default directories are searched after
152 the explicitly specified directories. For example, setting
153 SANE_CONFIG_DIR to "/tmp/config:" would result in directories
154 "tmp/config", ".", and "/etc/sane.d" being searched (in this
155 order).
156 SANE_DEBUG_HP
158 If the library was compiled with debug support enabled, this
159 environment variable controls the debug level for this backend.
160 E.g., a value of 128 requests all debug output to be printed.
161 Smaller levels reduce verbosity.
162 SANE_HOME_HP
164 Only used for OS/2 and along with use of HP PhotoSmart Photo‐
165 Scanner. Must be set to the directory where the directory .sane
166 is located. Is used to save and read the calibration file.
167 SANE_HP_KEEPOPEN_SCSI
169 SANE_HP_KEEPOPEN_USB
171 SANE_HP_KEEPOPEN_DEVICE
173 For each type of connection (connect-scsi, connect-usb, connect-
174 device) it can be specified if the connection to the device
175 should be kept open ("1") or not ("0"). Usually the connections
176 are closed after an operation is performed. Keeping connection
177 open to SCSI-devices can result in errors during device IO when
178 the scanner has not been used for some time. By default, USB-
179 connections are kept open. Other connections are closed.
180 SANE_HP_RDREDO
182 Specifies number of retries for read operation before returning
183 an EOF error. Only supported for non-SCSI devices. Default: 1
184 retry. Time between retries is 0.1 seconds.
185
188 HP PhotoSmart PhotoScanner
189 In media mode 'slide' and 'negative', scan resolutions are
190 rounded to multiple of 300 dpi. The scanner does not scale the
191 data correctly on other resolutions. Some newer models (firmware
192 code R030 and later) do not support adjustment of con‐
193 trast/intensity level and tone map. The backend will simulate
194 this by software, but only for gray and 24 bit color.
195 Automatic Document Feeder (ADF)
197 For use of the ADF with xscanimage(1), first place paper in the
198 ADF and then change option scan source to 'ADF'. Press 'change
199 document' to load a sheet. Then press 'scan' to start a scan.
200 Maybe it is sufficient to press 'scan' without 'change document'
201 for repeated scans. The use of the preview window is not recom‐
202 mended when working with the ADF. Setting a window to scan from
203 ADF is not supported with xscanimage(1). Try xsane(1).
204 Immediate actions
206 Some actions in xscanimage(1) (i.e. unload, select media, cali‐
207 brate) have an immediate effect on the scanner without starting
208 a scan. These options can not be used with scanimage.
209
212 HP PhotoSmart PhotoScanner
213 PhotoScanners with firmware release R030 and up have no firmware
214 support for contrast/brightness/gamma table. In the current
215 backend this is simulated by software on 24 bits data. Simula‐
216 tion on 30 bits should give better results.
217 Data widths greater than 8 bits
219 Custom gamma table does not work.
220 Parallel scanner support
222 Beside the ScanJet Plus which came with its own parallel inter‐
223 face card, currently only the HP ScanJet 5100C/5200C are sup‐
224 ported. These scanners are using an internal parallel-to-SCSI
225 converter which is supported by the ppSCSI-driver (see above).
226
229 sane(7), sane-scsi(5), sane-usb(5)
230
232 The sane-hp backend was written by Geoffrey T. Dairiki. HP PhotoSmart
233 PhotoScanner support by Peter Kirchgessner.
234sane-backends 1.0.18 27 Mar 2004 sane-hp(5)