1sane-umax_pp(5) SANE Scanner Access Now Easy sane-umax_pp(5)
2
6 sane-umax_pp - SANE backend for Umax Astra parallel port flatbed scan‐
7 ners
8
10 The sane-umax_pp library implements a SANE (Scanner Access Now Easy)
11 backend that provides access to Umax parallel port flatbed scanners.
12 The following scanners work with this backend:
13 Model:
15 --------------------
16 Astra 610P
17 Astra 1220P
18 HP3200C
19 Astra 1600P
20 Astra 2000P
21 This backend handles 75x75, 150x150, 300x300, 600x600 and 600x1200 for
23 1220P/1600P/2000P dpi scan reslutions,and 75x75, 150x150, 300x300 and
24 300x600 for 610P. In color and gray levels, there is a software lineart
25 mode.
26 The new generation models share a newer version of the 610P ASIC embed‐
28 ded in an EPAT chip. Only parts such as CCD and ADC change from one to
29 another. They even all reports being UMAX Astra 1220P via IEEE1284.
30 There isn't software way to recognize them properly. Under windows,
31 model is set by the driver installed, regardless of the hardware.
32 EPP/ECP MODES ONLY
34 The current version of the backend uses only EPP or ECP mode to
35 communicate with the scanner. PS/2 mode isn't implemented. The
36 610P only use SPP. It is recommended that you set your parallel
37 port to EPP in BIOS with the current version of this backend.
38 You can leave it to ECP or ECP+EPP, but in this case you may not
39 use ppdev but only direct hardware access if you have to use
40 ECP. ECPEPP will only work if you use a 2.4 or 2.6 kernel with
41 ppdev character device support.
42 This backend does support parport sharing only if you have a kernel
44 with ppdev support.
45 Note that if you don't use the ppdev character device, the backend
47 needs to run as root. To allow user access to the scanner run the back‐
48 end through the network interface (See saned(8) and sane-net(5)). A
49 more relaxed solution (security wise) is to add suid bit to the fron‐
50 tend (See chmod(1)). The backend drop root priviledges as soon as it
51 can, right after gaining direct access to IO ports, which lessen risks
52 when being root.
53
56 This backend expects device names of the form:
57 port value
59 Where value is :
61 auto autodetect all parallel ports and probe them for scanner
64 safe-auto
66 autodetect all parallel ports and probe them for scanner,
67 but does not try direct hardware access
68 /dev/ppi0
70 uses *BSD ppi device, depending on the number of avail‐
71 able parallel port, you have to use /dev/ppi1, /dev/ppi2,
72 ...
73 /dev/parport0
75 uses linux ppdev device, depending on the number of
76 available parallel port, you have to use /dev/parport1,
77 /dev/parport2, ...
78 0x378 does direct hardware access on the given address. Usual
80 values are 0x378, 0x278, 0x3BC In this case, you have to
81 run the scanner as root (*BSD and linux), or with
82 'IOPL=yes' on OS/2
83 NOTE: in all cases, you must have sufficient priviledges to get access
85 to the chosen device or address. Depending on the security settings,
86 devices may not be available for all users. You have to change permis‐
87 sions on the dev/ppi* or /dev/parport* devices.
88 You can rename any device using the
90 name devname
92 model model
93 vendor vendor
94 options. These options apply to the last port option.
96
99 Please make sure to edit umax_pp.conf before you use the backend.
100 The contents of the umax_pp.conf file is a list of options and device
102 names that correspond to Umax scanners. Empty lines and lines starting
103 with a hash mark (#) are ignored.
104 The height options supported are red-gain, green-gain, blue-gain, red-
106 offset, green-offset, blue-offset, astra, and buffer.
107 Options red-gain , green-gain and blue-gain allow you to adjust the
109 sensitivy of your scanner for the given color. Values range from 0
110 (lowest gain) to 15 (highest). If the advanced option "Gain" isn't
111 checked in the frontend, the backend does automatic gain calibration,
112 and do not use user provided values.
113 Options red-offset , green-offset and blue-offset allow you to adjust
116 the offset of your scanner for the given color. Values range from 0
117 (lowest offset) to 15 (highest).
118 Option astra allows you to change the model of your scanner. Current
120 auto detection is based on side effects on scanning when using 1220P
121 command set on other models, so it may fail on unkown hardware combina‐
122 tion. Valid values are 610, 1220, 1600 and 2000. It is usefull only
123 when autodetection fails to detect properly your scanner model. If your
124 scanner work properly but is reported wrongly, let it be that way. The
125 only valid case to change the model is when your scanner produces
126 'black' or prevent scanner model autodetection.
127 Option buffer allows you to change the size of the scan buffer. The
129 size must be specified in bytes. The default value is 2 megabytes.
130 Decreasing this value will improve the smoothness of progress bar in
131 the frontend, but will stall the scan more often.
132
135 /etc/sane.d/umax_pp.conf
136 The backend configuration file (see also description of
137 SANE_CONFIG_DIR below).
138 /usr/lib*/sane/libsane-umax_pp.a
140 The static library implementing this backend.
141 /usr/lib*/sane/libsane-umax_pp.so
143 The shared library implementing this backend (present on systems
144 that support dynamic loading).
145
148 SANE_CONFIG_DIR
149 This environment variable specifies the list of directories that
150 may contain the configuration file. Under UNIX, the directories
151 are separated by a colon (`:'), under OS/2, they are separated
152 by a semi-colon (`;'). If this variable is not set, the config‐
153 uration file is searched in two default directories: first, the
154 current working directory (".") and then in /etc/sane.d. If the
155 value of the environment variable ends with the directory sepa‐
156 rator character, then the default directories are searched after
157 the explicitly specified directories. For example, setting
158 SANE_CONFIG_DIR to "/tmp/config:" would result in directories
159 "tmp/config", ".", and "/etc/sane.d" being searched (in this
160 order).
161 SANE_DEBUG_UMAX_PP
163 If the library was compiled with debug support enabled, this
164 environment variable controls the debug level for this backend.
165 E.g., a value of 128 requests all debug output to be printed.
166 Smaller levels reduce verbosity.
167 level debug output
170 ------- ------------------------------
171 0 nothing
172 1 errors
173 2 warnings & minor errors
174 3 additional information
175 4 debug information
176 5 code flow (not supported yet)
177 6 special debug information
178 SANE_DEBUG_UMAX_PP_LOW
180 This variable sets the debug level for the SANE interface for
181 the Umax ASIC. Note that enabling this will spam your terminal
182 with some million lines of debug output.
183 level debug output
186 ------- -------------------------------
187 0 nothing
188 1 errors
189 8 command blocks
190 16 detailed code flow
191 32 dump datafiles
192 255 everything
193
195 sane(7), sane-net(5), saned(8)
196 For latest bug fixes and information see
199 http://umax1220p.sourceforge.net/
200
203 Stéphane VOLTZ <svoltz@wanadoo.fr>
204
207 Support for the 610P has been made possible thank to an hardware dona‐
208 tion by William Stuart.
209
212 If something doesn't work, please contact me. But I need some informa‐
213 tion about your scanner to be able to help you...
214 SANE version
217 run "scanimage -V" to determine this
218 the backend version and your scanner hardware
220 run "SANE_DEBUG_UMAX_PP=255 scanimage -L 2>log" as root. If you
221 don't get any output from the umax_pp backend, make sure a line
222 "umax_pp" is included into your /etc/sane.d/dll.conf. If your
223 scanner isn't detected, make sure you've defined the right port
224 address, or the correct device in your umax_pp.conf.
225 the name of your scanner/vendor
227 also a worthy information. Please also include the optical reso‐
228 lution and lamp type of your scanner, both can be found in the
229 manual of your scanner.
230 any further comments
232 if you have comments about the documentation (what could be done
233 better), or you think I should know something, please include
234 it.
235sane-backends 1.0.18 23 August 2004 sane-umax_pp(5)