[sane-devel] MFP - Samsung SCX-4521F
Heiko Freundel wrote: Hi, for the above mentioned MultiFunktionPrinter Samsung provides an Linux driver which should work with sane. This was a main reason for deciding for that MFP. I tried to use it with Ubuntu 10.0, but without success. Samsung just wrote me, that the driver was not testet with Ubuntu :-( At http://www.sane-project.org I just found the information, that there is an untested version of the driver. Where did you find this information? I just checked the page with the list of scanners supported by the sane-backends package, and could not find the word Samsung. Only on the list of external backends mentions Samsung. Additionally, I searched the current source code from the CVS -- and found the SCX-4521F only in the files describing external backends. 1. How can Samsung have an driver and the sane-project has not? well, anybody, individuals as well as companies and other organizations, are free to write Sane backends as they want to do so. And nobody is forced to contribute a Sane backend to the backend collection from the Sane project. Moreover, a manufacturer like Samsung has the advantage to have easy access to relevant programming information for the scanners (I don't know, if Samsung provides this kind of information to independent developers). The Sane project will have direct support for Samsung devices only if somebody starts the work on a special backend, or if some scanner/MFP device turns out to be easily supportable by an existing backend. 2. How can I get the untestet driver from the sane-project? As written above: I'm afraid that there is no such driver/backend... Abel
[sane-devel] Flatbed scanner that can scan to the edge?
Felix E. Klee felix.k...@inka.de writes: At Thu, 01 Mar 2007 08:34:56 +0900, Olaf Meeuwissen wrote: That's the idea. But unfortunately, it doesn't work - the document gets cropped. To the best of my knowledge, all EPSON scanners supported by the epson backend scan from the edge of the glass plate. You conveniently snipped this: | Same for the epkowa backend provided the scanner does NOT require | a plug-in. Really? Then that would be an improvement as compared to the Windows driver. My scanner is well supported by the Epson backend. In fact that was the reason for me to buy it. The Perfection 3490 is supported by the snapscan backend. The epkowa backend supports it if, and only if, you install a plug-in. Perhaps you have access to an Epson Perfection 3490 Photo or a scanner from the same series (it's the series that just went out of production)? It would be great if you could try scanning to the edge and let us know your experiences. I doubt that it works. I had access to such a scanner when adding support for it to the epkowa backend. And IIRC the 3490 needs to have the document centered horizontally. I don't remember if it also needs to be centered vertically, but I doubt it. Hope this helps, -- Olaf Meeuwissen EPSON AVASYS Corporation, SE1 FSF Associate Member #1962 sign up at http://member.fsf.org/ GnuPG key: 6BE37D90/AB6B 0D1F 99E7 1BF5 EB97 976A 16C7 F27D 6BE3 7D90 Penguin's lib! -- I hack, therefore I am -- LPIC-2
[sane-devel] Flatbed scanner that can scan to the edge?
At Fri, 02 Mar 2007 08:39:55 +0900, Olaf Meeuwissen wrote: That's the idea. But unfortunately, it doesn't work - the document gets cropped. To the best of my knowledge, all EPSON scanners supported by the epson backend scan from the edge of the glass plate. You conveniently snipped this: | Same for the epkowa backend provided the scanner does NOT require | a plug-in. I don't use the Epkowa backend, that's why I snipped it. I use the snapscan backend, and - without much thinking - I assumed that you count this backed as an EPSON backend (though I know that Snapscan scanners used to be sold by Agfa not EPSON). I had access to such a scanner when adding support for it to the epkowa backend. And IIRC the 3490 needs to have the document centered horizontally. No, the problem exists in all directions. I.e. the document needs to be more or less centered both vertically and horizontally. According to EPSON telephone support in Germany, the lowest priced EPSON scanner that can scan to the edge is the V700. However, this scanner is overkill for my usage scenario. While I want to make good quality scans of colored documents, I need only a resolution of up to around 600 dpi, and I rarely scan photos. If I ever want to have my collection of photos and films digitized, then I'd probably consult a service provider and not do it myself. BTW, when doing test scans I also found out that the scanned area is not evenly lit. This adds to the disappointment with the scanner. Perhaps I'm expecting too much from a 100 EUR scanner. -- Felix E. Klee
[sane-devel] Re: Flatbed scanner that can scan to the edge?
On Fri, Mar 02, 2007 at 02:01:30PM +0100, Felix E. Klee wrote: I had access to such a scanner when adding support for it to the epkowa backend. And IIRC the 3490 needs to have the document centered horizontally. No, the problem exists in all directions. I.e. the document needs to be more or less centered both vertically and horizontally. According to EPSON telephone support in Germany, the lowest priced EPSON scanner that can scan to the edge is the V700. However, this scanner is overkill for my usage scenario. While I want to make good quality scans of colored documents, I need only a resolution of up to around 600 dpi, and I rarely scan photos. If I ever want to have my collection of photos and films digitized, then I'd probably consult a service provider and not do it myself. My (oldish) Epson Perfection 1650 Photo certainly scanned to the edge, but that's a discontinued model. I have a V700 now. BTW, when doing test scans I also found out that the scanned area is not evenly lit. This adds to the disappointment with the scanner. Perhaps I'm expecting too much from a 100 EUR scanner. No, I don't think so, *all* the scanners I have ever owned (an ancient HP, a microtek, the Epson 1650 and now the V700) have scanned to the edge of the glass. They all have a pair of arrows pointing at the corner where you should place a sheet of paper, hard against the edges. None, except the V700, was particularly expensive. -- Chris Green
[sane-devel] Flatbed scanner that can scan to the edge?
On Fri, Mar 02, 2007 at 02:01:30PM +0100, Felix E. Klee wrote: BTW, when doing test scans I also found out that the scanned area is not evenly lit. This adds to the disappointment with the scanner. Perhaps I'm expecting too much from a 100 EUR scanner. Another thing to watch out for is that some scanners shear the picture a little bit. I think this is caused by pulling the head on one side only. So even if the scanner is able to scan to the edge, it may not scan the edge as perfect horizontal and vertical lines. But an affine transformation should be able to fix this. Daniel
[sane-devel] Formulardaten
=== == Neuer Eintrag === --- -- Formular: 'adddev' --- 1. Your email address: 'williamjfar...@tiscali.co.uk' 2. Manufacturer (e.g. Mustek): 'HP' 3. Model name (e.g. ScanExpress 1200UB): 'Photosmart C3180' 4. Bus type: 'USB' 5. Vendor id (e.g. 0x001): '0x03F0' 6. Product id (e.g. 0x0002): '0x5611' 7. Chipset (e.g. lm9831): '' 8. Comments (e.g. similar to Mustek 1234): 'Probably similar to Hp Photosmart 5100 series.' 9. Data (e.g. sane-find-scanner -v -v): 'device descriptor of 0x03f0/0x5611 at 001:003 (HP Photosmart C3100 series) bLength 18 bDescriptorType 1 bcdUSB2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x03F0 idProduct 0x5611 bcdDevice 1.00 iManufacturer 1 (HP) iProduct 2 (Photosmart C3100 series) iSerialNumber 3 (MY6A6C34FF04P9) bNumConfigurations1 configuration 0 bLength 9 bDescriptorType 2 wTotalLength 131 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 () bmAttributes 192 (Self-powered) MaxPower 2 mA interface 0 altsetting 0 bLength9 bDescriptorType4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass255 bInterfaceSubClass 204 bInterfaceProtocol 0 iInterface 0 () endpoint 0 bLength 7 bDescriptorType 5 bEndpointAddress 0x01 (out 0x01) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 endpoint 1 bLength 7 bDescriptorType 5 bEndpointAddress 0x82 (in 0x02) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 endpoint 2 bLength 7 bDescriptorType 5 bEndpointAddress 0x83 (in 0x03) bmAttributes 3 (interrupt) wMaxPacketSize8 bInterval 10 ms bRefresh 0 bSynchAddress 0 interface 1 altsetting 0 bLength9 bDescriptorType4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass7 bInterfaceSubClass 1 bInterfaceProtocol 2 iInterface 0 () endpoint 0 bLength 7 bDescriptorType 5 bEndpointAddress 0x0A (out 0x0A) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 endpoint 1 bLength 7 bDescriptorType 5 bEndpointAddress 0x8B (in 0x0B) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 interface 2 altsetting 0 bLength9 bDescriptorType4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass255 bInterfaceSubClass 255 bInterfaceProtocol 255 iInterface 0 () endpoint 0 bLength 7 bDescriptorType 5 bEndpointAddress 0x07 (out 0x07) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 endpoint 1 bLength 7 bDescriptorType 5 bEndpointAddress 0x88 (in 0x08) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 altsetting 1 bLength9 bDescriptorType4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass255 bInterfaceSubClass 212 bInterfaceProtocol 0 iInterface 0 () endpoint 0 bLength 7 bDescriptorType 5 bEndpointAddress 0x07 (out 0x07) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 endpoint 1 bLength 7 bDescriptorType 5 bEndpointAddress 0x88 (in 0x08) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 interface 3 altsetting 0 bLength9 bDescriptorType4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass8 bInterfaceSubClass 6 bInterfaceProtocol 80 iInterface 0 () endpoint 0 bLength 7 bDescriptorType 5 bEndpointAddress 0x04 (out 0x04) bmAttributes 2 (bulk) wMaxPacketSize64 bInterval 0 ms bRefresh 0 bSynchAddress 0 endpoint 1 bLength 7 bDescriptorType 5
[sane-devel] MFP - Samsung SCX-4521F
abel deuring schrieb: Heiko Freundel wrote: Hi, for the above mentioned MultiFunktionPrinter Samsung provides an Linux driver which should work with sane. This was a main reason for deciding for that MFP. I tried to use it with Ubuntu 10.0, but without success. Samsung just wrote me, that the driver was not testet with Ubuntu :-( At http://www.sane-project.org I just found the information, that there is an untested version of the driver. Where did you find this information? I just checked the page with the list of scanners supported by the sane-backends package, and could not find the word Samsung. Only on the list of external backends mentions Samsung. Additionally, I searched the current source code from the CVS -- and found the SCX-4521F only in the files describing external backends. Yes, you are right: http://www.sane-project.org/lists/sane-backends-external.html#S-SAMSUNG 1. How can Samsung have an driver and the sane-project has not? well, anybody, individuals as well as companies and other organizations, are free to write Sane backends as they want to do so. And nobody is forced to contribute a Sane backend to the backend collection from the Sane project. Moreover, a manufacturer like Samsung has the advantage to have easy access to relevant programming information for the scanners (I don't know, if Samsung provides this kind of information to independent developers). The Sane project will have direct support for Samsung devices only if somebody starts the work on a special backend, or if some scanner/MFP device turns out to be easily supportable by an existing backend. I know, that Samsung can do that. But the driver doesn't work with Ubuntu 10.0. Samsung told me, that it wasn't tested with Ubuntu. Two days ago I asked with which distributions it was test. I'm still waiting for an answer. I don't have the knowledge for writting printer drivers, but if the driver works with other distributions, it shouldn't be that much change? Is there an for an beginner understandable howto which I can use do the changes by myself? Thanks Heiko
[sane-devel] MFP - Samsung SCX-4521F
for the above mentioned MultiFunktionPrinter Samsung provides an Linux driver which should work with sane. This was a main reason for deciding for that MFP. I tried to use it with Ubuntu 10.0, but without success. Samsung just wrote me, that the driver was not testet with Ubuntu :-( At http://www.sane-project.org I just found the information, that there is an untested version of the driver. 1. How can Samsung have an driver and the sane-project has not? 2. How can I get the untestet driver from the sane-project? Hi Heiko. I've just installed a HP F380 MFP in my wife's pharmacy, and I used the HP driver. It has to be downloaded from the hplip project site at sourceforge. It installs itself in such a way that Sane automatically detects it (without changing anything in sane), and also, it's recognized by CUPS. I suspect a similar procedure is valid for Samsung. On their website is a unified driver for Linux. It should work like this and the printer does. Ubuntu already installed Sane 1.0.14-1. I tried different things I found, like: http://www.elijahlofgren.com/ubuntu/#scx-4521f with no success. Trying to start xsane from shell shows the following message: insmod: can't read '/lib/modules/2.6.17-10-generic/kernel/drivers/mfpportctrl/mfpport.ko': No such file or directory Segmentation fault (core dumped) When I start the Samsung Unified Driver Configurator (which installs itself) and then click the scanner button, it closes, with the messages below. ~$ /opt/Samsung/mfp/bin/Configurator insmod: can't read '/lib/modules/2.6.17-10-generic/kernel/drivers/mfpportctrl/mfpport.ko': No such file or directory *** glibc detected *** /opt/Samsung/mfp/bin/Configurator: double free or corruption (!prev): 0x081c1258 *** === Backtrace: = /lib/tls/i686/cmov/libc.so.6[0xb74ad8bd] /lib/tls/i686/cmov/libc.so.6(__libc_free+0x84)[0xb74ada44] /usr/lib/libstdc++-libc6.2-2.so.3(__builtin_vec_delete+0x24)[0xb6baa464] /usr/lib/sane/libsane-samsung_scx4x21.so.1(init_mfp_port_control__4port+0x7f)[0xb6a6c62b] /usr/lib/sane/libsane-samsung_scx4x21.so.1(init_mfp_port_control__6device+0x16)[0xb6a6d11e] ... But I don't know, whether I need mfpport.ko or where I get it from. Samsung told me, the driver was not testet with Ubuntu. Heiko
[sane-devel] MFP - Samsung SCX-4521F
abel deuring schrieb: Heiko Freundel wrote: Hi, for the above mentioned MultiFunktionPrinter Samsung provides an Linux driver which should work with sane. This was a main reason for deciding for that MFP. I tried to use it with Ubuntu 10.0, but without success. Samsung just wrote me, that the driver was not testet with Ubuntu :-( At http://www.sane-project.org I just found the information, that there is an untested version of the driver. Where did you find this information? I just checked the page with the list of scanners supported by the sane-backends package, and could not find the word Samsung. Only on the list of external backends mentions Samsung. Additionally, I searched the current source code from the CVS -- and found the SCX-4521F only in the files describing external backends. Yes, you are right: http://www.sane-project.org/lists/sane-backends-external.html#S-SAMSUNG 1. How can Samsung have an driver and the sane-project has not? well, anybody, individuals as well as companies and other organizations, are free to write Sane backends as they want to do so. And nobody is forced to contribute a Sane backend to the backend collection from the Sane project. Moreover, a manufacturer like Samsung has the advantage to have easy access to relevant programming information for the scanners (I don't know, if Samsung provides this kind of information to independent developers). The Sane project will have direct support for Samsung devices only if somebody starts the work on a special backend, or if some scanner/MFP device turns out to be easily supportable by an existing backend. I know, that Samsung can do that. But the driver doesn't work with Ubuntu 10.0. Samsung told me, that it wasn't tested with Ubuntu. Two days ago I asked with which distributions it was test. I'm still waiting for an answer. I don't have the knowledge for writting printer drivers, but if the driver works with other distributions, it shouldn't be that much change? Is there an for an beginner understandable howto which I can use do the changes by myself? Thanks Heiko
[sane-devel] MFP - Samsung SCX-4521F
Heiko Freundel wrote: The Sane project will have direct support for Samsung devices only if somebody starts the work on a special backend, or if some scanner/MFP device turns out to be easily supportable by an existing backend. I know, that Samsung can do that. But the driver doesn't work with Ubuntu 10.0. Samsung told me, that it wasn't tested with Ubuntu. Two days ago I asked with which distributions it was test. I'm still waiting for an answer. Good luck... I don't have the knowledge for writting printer drivers, but if the driver works with other distributions, it shouldn't be that much change? Is there an for an beginner understandable howto which I can use do the changes by myself? I found a binary-only package with Linux drivers on the Samsung website. With such binary files, you can't do very much. Though your problem might indeed be a minor one: most bugfix methods for Linux assume that you can modify one or the other source file. But if you tell a bit more about the problem, somebody on this list might have a suggestion. (But keep in mind that most people reading the mailing list do not feel responsible for other software packages, especially those for which no source code is available...) Abel
[sane-devel] MFP - Samsung SCX-4521F
Heiko Freundel wrote: It should work like this and the printer does. Ubuntu already installed Sane 1.0.14-1. I tried different things I found, like: http://www.elijahlofgren.com/ubuntu/#scx-4521f with no success. Trying to start xsane from shell shows the following message: insmod: can't read '/lib/modules/2.6.17-10-generic/kernel/drivers/mfpportctrl/mfpport.ko': No such file or directory Segmentation fault (core dumped) When I start the Samsung Unified Driver Configurator (which installs itself) and then click the scanner button, it closes, with the messages below. ~$ /opt/Samsung/mfp/bin/Configurator insmod: can't read '/lib/modules/2.6.17-10-generic/kernel/drivers/mfpportctrl/mfpport.ko': No such file or directory *** glibc detected *** /opt/Samsung/mfp/bin/Configurator: double free or corruption (!prev): 0x081c1258 *** === Backtrace: = /lib/tls/i686/cmov/libc.so.6[0xb74ad8bd] /lib/tls/i686/cmov/libc.so.6(__libc_free+0x84)[0xb74ada44] /usr/lib/libstdc++-libc6.2-2.so.3(__builtin_vec_delete+0x24)[0xb6baa464] /usr/lib/sane/libsane-samsung_scx4x21.so.1(init_mfp_port_control__4port+0x7f)[0xb6a6c62b] /usr/lib/sane/libsane-samsung_scx4x21.so.1(init_mfp_port_control__6device+0x16)[0xb6a6d11e] ... But I don't know, whether I need mfpport.ko or where I get it from. grepping through the kernel sources for the word mfpport gives no result. Neither are there any files with a name that matches *mfpport*. But if you ask google for mfpport.ko, you'll get a lot of error reports, often in conjunction with Samsung devices, but no hint for useful patches, at least on the first 5 result pages. This is an indication that mfpport.ko is a Samsung-specific kernel module, for which no source code is available. You could try to find this file somewhere in the Samsung driver package, and try to load it manually, but if there is any incompatibility with the Ubuntu kernel, this will not work. Samsung told me, the driver was not testet with Ubuntu. ...which they should state clearly on their website, in README files and in other places where people might check, if a device is supported under a specific operating system. Binary-only kernel modules are a really bad idea. And we (the Sane project) should tell more clearly in the *desc files for external backends, if source code is available (at least partially), if the backend works only under Linux, or even only with very specific kernel versions... Abel
