Difference between revisions of "SANE"

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(For HP hardware)
Line 8: Line 8:
 
== Installation ==
 
== Installation ==
 
{{Ic|sane}} is available in the {{Ic|[extra]}} repository so:
 
{{Ic|sane}} is available in the {{Ic|[extra]}} repository so:
  # pacman -S sane
+
  $ pacman -S sane
  
 
== Configuration ==
 
== Configuration ==
Users that need to use a scanner should be part of the group {{Ic|scanner}}. Use {{Ic|gpasswd}} to add a user to a group:
 
# gpasswd -a username scanner
 
{{Note|You need to logout/login for this to take effect.}}
 
 
 
Now you can try to see if sane recognizes your scanner
 
Now you can try to see if sane recognizes your scanner
 
  $ scanimage -L
 
  $ scanimage -L
 
If that fails, check that your scanner is plugged into the computer. You also might have to unplug/plug your scanner for {{ic|/etc/udev/rules.d/sane.rules}} to recognize your scanner.
 
If that fails, check that your scanner is plugged into the computer. You also might have to unplug/plug your scanner for {{ic|/etc/udev/rules.d/sane.rules}} to recognize your scanner.
 +
 +
Now you can see if it actually works
 +
$ scanimage --format=tiff > test.tiff
 +
 +
Users that need to use a scanner should be part of the group {{Ic|scanner}}. Use {{Ic|gpasswd}} to add a user to a group:
 +
$ gpasswd -a username scanner
 +
{{Note|You need to logout/login for this to take effect.}}
  
 
=== For HP hardware ===
 
=== For HP hardware ===
For HP hardware you may also need to install the {{Ic|hplip}} package and/or {{Ic|hpoj}} which is in the {{Ic|extra}} repository:
+
For HP hardware you may also need to install the {{Ic|hplip}} and/or {{Ic|hpoj}} packages which are in the {{Ic|extra}} repository:
 
  pacman -S hplip hpoj
 
  pacman -S hplip hpoj
  
Line 29: Line 32:
 
For Hewlett-Packard OfficeJet, PSC, LaserJet, and PhotoSmart printer multi-function peripherals, run ptal-init setup as root and follow instructions:
 
For Hewlett-Packard OfficeJet, PSC, LaserJet, and PhotoSmart printer multi-function peripherals, run ptal-init setup as root and follow instructions:
 
  ptal-init setup
 
  ptal-init setup
 
 
Then add ptal-init to the daemons line of /etc/rc.conf or run {{ic|ptal-init start}}, as root, to enable the daemon after reboot.
 
Then add ptal-init to the daemons line of /etc/rc.conf or run {{ic|ptal-init start}}, as root, to enable the daemon after reboot.
  
Line 37: Line 39:
  
 
After you installed the driver you need to run
 
After you installed the driver you need to run
  # /usr/local/Brother/sane/setupSaneScan1 -i
+
  $ /usr/local/Brother/sane/setupSaneScan1 -i
  
 
so the drivers/scanner are recognized by sane.
 
so the drivers/scanner are recognized by sane.
  
 
For network scanners, Brother provides a configuration tool:
 
For network scanners, Brother provides a configuration tool:
  # brsaneconfig2 -a name=<ScannerName> model=<ScannerModel> ip=<ScannerIP>
+
  $ brsaneconfig2 -a name=<ScannerName> model=<ScannerModel> ip=<ScannerIP>
 
Example:
 
Example:
  # brsaneconfig2 -a name=SCANNER_DCP770CW model=DCP-770CW ip=192.168.0.110
+
  $ brsaneconfig2 -a name=SCANNER_DCP770CW model=DCP-770CW ip=192.168.0.110
  
 
=== For Epson hardware ===
 
=== For Epson hardware ===
Line 52: Line 54:
 
  net {IP_OF_SCANNER}
 
  net {IP_OF_SCANNER}
  
==Firmware==
+
=== For Samsung hardware ===
{{Note|This section is only needed if you need to upload firmware to your scanner.}}
+
For some Samsung MFP printers you may need to edit /etc/sane.d/xerox_mfp.conf.
  
===Get the firmware===
+
example entry:
{{Note|If you do not have an install CD, you might find the required software on the scanner manufacturer's website.}}
+
#Samsung SCX-3200
 +
usb 0x04e8 0x3441
  
Firmwares usually have the '''{{Ic|.bin}}''' extension.
+
Change the printer model as needed. You can get the ipVendor and idProduct code with lsusb.  See [https://bbs.archlinux.org/viewtopic.php?id=123934 this thread].
  
But it may also be in:
+
=== For plustek scanners ===
*a {{Ic|.exe}} file; in this case maybe it is just a zip archive, install and run {{Ic|unzip}} to find out.
+
Some plustek scanners (noticeably Canoscan ones), require a lock directory. Make sure that /var/lock/sane directory exists, that its permissions are 660, and that it is owned by <user>:scanner. If the directory permissions are wrong, only root will be able to use the scanner. Seems (at least on x86-64) that some programs using libusb (noticeably xsane and kooka) need scanner group rw permissions also for accessing /proc/bus/usb to work for a normal user.
*a {{Ic|.cab}} file; install and run {{Ic|cabextract}} to extract it.
+
 
 +
==Firmware==
 +
{{Note|This section is only needed if you need to upload firmware to your scanner.}}
 +
 
 +
Firmwares usually have the '''{{Ic|.bin}}''' extension.  
  
===Install the firmware===
 
 
Firstly you need to put the firmware someplace safe, it is recommended to put it in a subdirectory of {{ic|/usr/share/sane}}.
 
Firstly you need to put the firmware someplace safe, it is recommended to put it in a subdirectory of {{ic|/usr/share/sane}}.
  
Line 74: Line 80:
 
If the backend of your scanner is not part of the sane package (such as hpaio.conf which is part of hplip), you need to uncomment the relevant entry in /etc/sane.d/dll.d/hplip.
 
If the backend of your scanner is not part of the sane package (such as hpaio.conf which is part of hplip), you need to uncomment the relevant entry in /etc/sane.d/dll.d/hplip.
  
==Install some frontend(s)==
+
==Install a frontend==
 
XSane provides a GTK-based frontend to Sane. It is available in the {{Ic|extra}} repository.
 
XSane provides a GTK-based frontend to Sane. It is available in the {{Ic|extra}} repository.
  # pacman -S xsane
+
  $ pacman -S xsane
Hint: Xsane can save directly to pdf file format. This works only in 8bit colour depth mode! (16bit mode produces [https://bugs.launchpad.net/ubuntu/+source/xsane/+bug/539162 corrupted files])
+
{{hint|Scanning directly to pdf using Xsane in 16bit color depth mode is known to produces [https://bugs.launchpad.net/ubuntu/+source/xsane/+bug/539162 corrupted files]. 8bit mode should work.}}
  
 
Other frontends exist, to find them you can:
 
Other frontends exist, to find them you can:
Line 83: Line 89:
 
*see the [http://www.sane-project.org/sane-frontends.html list of frontends] on the sane-project website
 
*see the [http://www.sane-project.org/sane-frontends.html list of frontends] on the sane-project website
  
xsane has an OCR(Optical character recognition) function. To use it, you need to install "gocr".
+
==Network scanning==
  # pacman -S gocr
+
==== Sharing Your Scanner Over a Network ====
 +
 
 +
You can share your scanner with other hosts on your network who use sane, xsane or xsane-enabled Gimp. To set up the server, first indicate which hosts on your network are allowed access.
 +
 
 +
Change the /etc/sane.d/saned.conf file to your liking, for example:
 +
  # required
 +
localhost
 +
# allow local subnet
 +
192.168.0.0/24
 +
 
 +
Ensure xinetd is installed:
 +
$ pacman -S xinetd
 +
 
 +
Next, make sure the a file called /etc/xinetd.d/sane exists and disabled is set to no:
 +
service sane-port
 +
{
 +
    port        = 6566
 +
    socket_type = stream
 +
    wait        = no
 +
    user        = root
 +
    group      = scanner
 +
    server      = /usr/sbin/saned
 +
    disable    = no
 +
}
 +
 
 +
Add the following line to /etc/services:
 +
sane-port 6566/tcp
 +
 
 +
Start xinetd:
 +
$ rc.d start xinetd
 +
 
 +
Your scanner can now be used by other workstations, across your local area network.
 +
 
 +
To start xinetd on startup, add xinetd to the list of DAEMONS in /etc/rc.conf
 +
 
 +
==== Accessing Your Scanner from a Remote Workstation ====
 +
You can access your network-enabled scanner from a remote Arch Linux workstation.
 +
 
 +
To set up your workstation, begin by installing xsane:
 +
$ pacman -S xsane
 +
 
 +
Next, specify the server's host name or IP address in the /etc/sane.d/net.conf file:
 +
# static IP address
 +
192.168.0.1
 +
# or host name
 +
stratus
 +
 
 +
Now test your workstation's connection, from a non-root login prompt:
 +
$ xsane
 +
 
 +
or
 +
$ scanimage -L
 +
 
 +
After a short while, xsane should find your remote scanner and present you with the usual windows, ready for network scanning delight!
 +
 
 +
For HP All in one network printer/scanner/fax you need to configure it via:
 +
$ hp-setup <printer ip>
  
 
==Troubleshooting==
 
==Troubleshooting==
Line 95: Line 157:
 
==== Wrong firmware file permissions ====
 
==== Wrong firmware file permissions ====
 
The permissions for the used firmware file are wrong. Correct them using
 
The permissions for the used firmware file are wrong. Correct them using
  # chown root:scanner /usr/share/sane/SCANNER_MODEL/FIRMWARE_FILE
+
  $ chown root:scanner /usr/share/sane/SCANNER_MODEL/FIRMWARE_FILE
  # chmod ug+r /usr/share/sane/SCANNER_MODEL/FIRMWARE_FILE
+
  $ chmod ug+r /usr/share/sane/SCANNER_MODEL/FIRMWARE_FILE
  
 
==== Multiple backends claim scanner ====
 
==== Multiple backends claim scanner ====
 
 
It may happen, that multiple backends support (or pretend to support) your scanner, and sane chooses one that doesn't do after all (the scanner won't be displayed by scanimage -L then). This has happend with older Epson scanners and the <code>epson2</code> resp. <code>epson</code> backends. In this case, the solution is to comment out the unwanted backend in <code>/etc/sane.d/dll.conf</code>. In the Epson case, that would be to change
 
It may happen, that multiple backends support (or pretend to support) your scanner, and sane chooses one that doesn't do after all (the scanner won't be displayed by scanimage -L then). This has happend with older Epson scanners and the <code>epson2</code> resp. <code>epson</code> backends. In this case, the solution is to comment out the unwanted backend in <code>/etc/sane.d/dll.conf</code>. In the Epson case, that would be to change
  
Line 109: Line 170:
 
   #epson2
 
   #epson2
 
   epson
 
   epson
 +
 +
===Slow startup===
 +
If you encounter slow startup issue (e.g. xsane or scanimage -L take a lot to find scanner) it may be that more than one driver supporting it is available.
 +
 +
Have a look at /etc/sane.d/dll.conf and try commenting out one (e.g. you may have epson, epson2 and epkowa enabled at the same time, try leaving only epson or epkowa uncommented)
  
 
===Permission problem===
 
===Permission problem===
Line 144: Line 210:
  
 
Save the file, plug out and back in your scanner and the file permissions should be now correct.
 
Save the file, plug out and back in your scanner and the file permissions should be now correct.
 
  
 
Another tip, is that you can add your device (scanner) in backend file:
 
Another tip, is that you can add your device (scanner) in backend file:
Line 152: Line 217:
 
Now file looks like this:
 
Now file looks like this:
  
  #[root@archlinux ~]# cat /etc/sane.d/hp4200.conf
+
  $ cat /etc/sane.d/hp4200.conf
 
  #
 
  #
 
  # Configuration file for the hp4200 backend
 
  # Configuration file for the hp4200 backend
Line 160: Line 225:
 
  #usb 0x03f0 0x0105
 
  #usb 0x03f0 0x0105
 
  usb 0x03f0 0x2504
 
  usb 0x03f0 0x2504
[root@archlinux ~]#
 
  
 
===DBus problem===
 
===DBus problem===
Line 169: Line 233:
 
  $ groups dbus
 
  $ groups dbus
 
  dbus
 
  dbus
  # gpasswd -a dbus lp
+
  $ gpasswd -a dbus lp
  # gpasswd -a dbus scanner
+
  $ gpasswd -a dbus scanner
  
 
(Note that dbus must be stopped and started for the group changes take effect.)
 
(Note that dbus must be stopped and started for the group changes take effect.)
Line 179: Line 243:
  
 
If it isn't, start it with:
 
If it isn't, start it with:
  # rc.d start dbus
+
  $ rc.d start dbus
  
 
A session dbus alone seems to be insufficient for scanner operation.
 
A session dbus alone seems to be insufficient for scanner operation.
 +
===Epson Perfection 1270===
  
===Slow startup===
+
For Epson Perfection 1270, you also need a firmware named esfw3e.bin, you can get it from (anyone could give a working place so I can upload it?), or you can get it yourself by reference to [http://wiki.archlinux.org/index.php/Scanner_setup_%26_configure Scanner setup & configure]. I get it by installing the driver in the windows.
If you encounter slow startup issue (e.g. xsane or scanimage -L take a lot to find scanner) it may be that more than one driver supporting it is available.  
+
  
Have a look at /etc/sane.d/dll.conf and try commenting out one (e.g. you may have epson, epson2 and epkowa enabled at the same time, try leaving only epson or epkowa uncommented)
+
Modify configuration file of snapscan backend:
 +
 
 +
vi /etc/sane.d/snapscan.conf  
 +
 
 +
Change the firmware path line with yours. :
 +
 
 +
<pre>
 +
  # Change to the fully qualified filename of your firmware file, if
 +
  # firmware upload is needed by the scanner
 +
  firmware /mnt/mydata/Backups/firmware/esfw3e.bin
 +
</pre>
 +
 
 +
And add the following line in the end or anywhere you like
 +
 
 +
<pre>
 +
  # Epson Perfection 1270
 +
  usb 0x04b8 0x0120
 +
</pre>
 +
 
 +
You can get such code information (''usb 0x04b8 0x0120'') by "sane-find-scanner" command.
 +
 
 +
Also add such information lines in your libsane.usermap file to setup your privilage, like:
 +
 
 +
vi /etc/hotplug/usb/libsane.usermap
 +
 
 +
  #Epson Perfection 1270
 +
  libusbscanner 0x0003 0x04b8 0x0120 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000
 +
 
 +
Replug scanner, you have a working Epson Perfection 1270 now.
 +
 
 +
NOTE: I can scan image if I define the X and Y value, but without that error meassage occors like: "scanimage: sane_start: Error during device I/O", if anyone know why, please complete the section.
 +
".

Revision as of 10:13, 27 September 2012

Sane provides a library and a command-line tool to use scanners under GNU/Linux. Here you can check if sane supports your scanner.

Installation

sane is available in the [extra] repository so:

$ pacman -S sane

Configuration

Now you can try to see if sane recognizes your scanner

$ scanimage -L

If that fails, check that your scanner is plugged into the computer. You also might have to unplug/plug your scanner for /etc/udev/rules.d/sane.rules to recognize your scanner.

Now you can see if it actually works

$ scanimage --format=tiff > test.tiff

Users that need to use a scanner should be part of the group scanner. Use gpasswd to add a user to a group:

$ gpasswd -a username scanner
Note: You need to logout/login for this to take effect.

For HP hardware

For HP hardware you may also need to install the hplip and/or hpoj packages which are in the extra repository:

pacman -S hplip hpoj
  • Uncomment or add hpaio and hpoj to a new line in /etc/sane.d/dll.conf.
  • Running hp-setup as root may help you add your device.
  • hp-plugin is the 'HPLIP Plugin Download and Install Utility'.
  • hp-scan is the 'HPLIP Scan Utility'.

For Hewlett-Packard OfficeJet, PSC, LaserJet, and PhotoSmart printer multi-function peripherals, run ptal-init setup as root and follow instructions:

ptal-init setup

Then add ptal-init to the daemons line of /etc/rc.conf or run ptal-init start, as root, to enable the daemon after reboot.

For Brother hardware

In order to install a Brother Scanner or Printer/Scanner Combo you need the right driver (which can be found in the AUR). There are only four drivers to choose from (brscan1-4). In order to find the right one you should search for your model at the brother linux scanner page.

After you installed the driver you need to run

$ /usr/local/Brother/sane/setupSaneScan1 -i

so the drivers/scanner are recognized by sane.

For network scanners, Brother provides a configuration tool:

$ brsaneconfig2 -a name=<ScannerName> model=<ScannerModel> ip=<ScannerIP>

Example:

$ brsaneconfig2 -a name=SCANNER_DCP770CW model=DCP-770CW ip=192.168.0.110

For Epson hardware

For Wi-Fi and/or network scanners, you can use "Image Scan! for Linux".

Install iscanAUR and iscan-plugin-networkAUR from the AUR, then update /etc/sane.d/epkowa.conf and add the line:

net {IP_OF_SCANNER}

For Samsung hardware

For some Samsung MFP printers you may need to edit /etc/sane.d/xerox_mfp.conf.

example entry:

#Samsung SCX-3200
usb 0x04e8 0x3441

Change the printer model as needed. You can get the ipVendor and idProduct code with lsusb. See this thread.

For plustek scanners

Some plustek scanners (noticeably Canoscan ones), require a lock directory. Make sure that /var/lock/sane directory exists, that its permissions are 660, and that it is owned by <user>:scanner. If the directory permissions are wrong, only root will be able to use the scanner. Seems (at least on x86-64) that some programs using libusb (noticeably xsane and kooka) need scanner group rw permissions also for accessing /proc/bus/usb to work for a normal user.

Firmware

Note: This section is only needed if you need to upload firmware to your scanner.

Firmwares usually have the .bin extension.

Firstly you need to put the firmware someplace safe, it is recommended to put it in a subdirectory of /usr/share/sane.

Then you need to tell sane where the firmware is:

  • Find the name of the backend for your scanner from the sane supported devices list.
  • Open the file /etc/sane.d/<backend-name>.conf.
  • Make sure the firmware entry is uncommented and let the file-path point to where you put the firmware file for your scanner. Be sure that members of the group scanner can access the /etc/sane.d/<backend-name>.conf file.

If the backend of your scanner is not part of the sane package (such as hpaio.conf which is part of hplip), you need to uncomment the relevant entry in /etc/sane.d/dll.d/hplip.

Install a frontend

XSane provides a GTK-based frontend to Sane. It is available in the extra repository.

$ pacman -S xsane

Template:Hint

Other frontends exist, to find them you can:

  • use pacman -Ss to search for keywords such as "sane" or "scanner"
  • see the list of frontends on the sane-project website

Network scanning

Sharing Your Scanner Over a Network

You can share your scanner with other hosts on your network who use sane, xsane or xsane-enabled Gimp. To set up the server, first indicate which hosts on your network are allowed access.

Change the /etc/sane.d/saned.conf file to your liking, for example:

# required
localhost
# allow local subnet
192.168.0.0/24

Ensure xinetd is installed:

$ pacman -S xinetd

Next, make sure the a file called /etc/xinetd.d/sane exists and disabled is set to no:

service sane-port
{
   port        = 6566
   socket_type = stream
   wait        = no
   user        = root
   group       = scanner
   server      = /usr/sbin/saned
   disable     = no
}

Add the following line to /etc/services:

sane-port 6566/tcp

Start xinetd:

$ rc.d start xinetd

Your scanner can now be used by other workstations, across your local area network.

To start xinetd on startup, add xinetd to the list of DAEMONS in /etc/rc.conf

Accessing Your Scanner from a Remote Workstation

You can access your network-enabled scanner from a remote Arch Linux workstation.

To set up your workstation, begin by installing xsane:

$ pacman -S xsane

Next, specify the server's host name or IP address in the /etc/sane.d/net.conf file:

# static IP address
192.168.0.1
# or host name
stratus

Now test your workstation's connection, from a non-root login prompt:

$ xsane

or

$ scanimage -L

After a short while, xsane should find your remote scanner and present you with the usual windows, ready for network scanning delight!

For HP All in one network printer/scanner/fax you need to configure it via:

$ hp-setup <printer ip>

Troubleshooting

Invalid argument

If you get an "Invalid argument" error with xsane or another sane front-end, this could be caused by one of the following reasons:

Missing firmware file

No firmware file was provided for the used scanner (see above for details).

Wrong firmware file permissions

The permissions for the used firmware file are wrong. Correct them using

$ chown root:scanner /usr/share/sane/SCANNER_MODEL/FIRMWARE_FILE
$ chmod ug+r /usr/share/sane/SCANNER_MODEL/FIRMWARE_FILE

Multiple backends claim scanner

It may happen, that multiple backends support (or pretend to support) your scanner, and sane chooses one that doesn't do after all (the scanner won't be displayed by scanimage -L then). This has happend with older Epson scanners and the epson2 resp. epson backends. In this case, the solution is to comment out the unwanted backend in /etc/sane.d/dll.conf. In the Epson case, that would be to change

 epson2
 #epson

to

 #epson2
 epson

Slow startup

If you encounter slow startup issue (e.g. xsane or scanimage -L take a lot to find scanner) it may be that more than one driver supporting it is available.

Have a look at /etc/sane.d/dll.conf and try commenting out one (e.g. you may have epson, epson2 and epkowa enabled at the same time, try leaving only epson or epkowa uncommented)

Permission problem

If you see your scanner only when doing sudo lsusb you might get it working by adding your user to scanner and/or lp group.

# gpasswd -a username scanner
# gpasswd -a username lp

This is reported to work on HP all-in-one models (e.g., PSC 1315 and PSC 2355).

Also you could try to change permission of usb device but this is not recommended, a better solution is to fix the Udev rules so that your scanner is recognized.

Example:

First, switch to root and check connected usb devices with command 'lsusb'

#[root@archlinux ~]# lsusb 
#Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
#Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
#Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
#Bus 003 Device 003: ID 04d9:1603 Holtek Semiconductor, Inc. 
#Bus 003 Device 002: ID 04fc:0538 Sunplus Technology Co., Ltd 
#Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
#Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
#Bus 001 Device 006: ID 03f0:2504 Hewlett-Packard 
#Bus 001 Device 002: ID 046d:0802 Logitech, Inc. Webcam C200
#Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#[root@archlinux ~]# 

In our example we see scanner - 'Bus 001 Device 006: ID 03f0:2504 Hewlett-Packard'

Now edit the file vi /lib/udev/rules.d/53-sane.rules and look for the first part of the ID number found previously and check if there is a line that also reports the second part of the number (model numer), in this example 2504. If not found change or copy a line and enter the idVendor and idProduct of your scanner, in this example it would be:

# Hewlett-Packard ScanJet 4100C
ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="2504", MODE="0664", GROUP="scanner",
  ENV{libsane_matched}="yes"

Save the file, plug out and back in your scanner and the file permissions should be now correct.

Another tip, is that you can add your device (scanner) in backend file:

In example we add string 'usb 0x03f0 0x2504' to file '/etc/sane.d/hp4200.conf'

Now file looks like this:

$ cat /etc/sane.d/hp4200.conf
#
# Configuration file for the hp4200 backend
#
#
# HP4200
#usb 0x03f0 0x0105
usb 0x03f0 0x2504

DBus problem

If you get following problem:

arguments to dbus_connection_send() were incorrect, assertion "connection != NULL" failed in file dbus-connection.c

Make sure the dbus user is in the groups lp and scanner:

$ groups dbus
dbus
$ gpasswd -a dbus lp
$ gpasswd -a dbus scanner

(Note that dbus must be stopped and started for the group changes take effect.)

Make sure the system dbus is running:

$ rc.d list dbus
[STARTED][AUTO] dbus

If it isn't, start it with:

$ rc.d start dbus

A session dbus alone seems to be insufficient for scanner operation.

Epson Perfection 1270

For Epson Perfection 1270, you also need a firmware named esfw3e.bin, you can get it from (anyone could give a working place so I can upload it?), or you can get it yourself by reference to Scanner setup & configure. I get it by installing the driver in the windows.

Modify configuration file of snapscan backend:

vi /etc/sane.d/snapscan.conf 

Change the firmware path line with yours. :

   # Change to the fully qualified filename of your firmware file, if
   # firmware upload is needed by the scanner
   firmware /mnt/mydata/Backups/firmware/esfw3e.bin

And add the following line in the end or anywhere you like

  # Epson Perfection 1270
  usb 0x04b8 0x0120

You can get such code information (usb 0x04b8 0x0120) by "sane-find-scanner" command.

Also add such information lines in your libsane.usermap file to setup your privilage, like:

vi /etc/hotplug/usb/libsane.usermap
 
 #Epson Perfection 1270
 libusbscanner 0x0003 0x04b8 0x0120 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000

Replug scanner, you have a working Epson Perfection 1270 now.

NOTE: I can scan image if I define the X and Y value, but without that error meassage occors like: "scanimage: sane_start: Error during device I/O", if anyone know why, please complete the section. ".