Scanner

[Jack Bowling]

I have an Epson Perfection 2450 Photo usb scanner. It only works if I hook
it up to a USB v1.1 hub. Others have found that doing:

sudo modprobe -r ehci_hcd

works for them. Since I have a usb hard drive using ehci_hcd, that is not an
option for me. 

Jack


On Mon, Dec 10, 2007 at 08:03:10PM -0500, Alfred wrote:
> I checked in Synaptic, and these Utilities were already installed.
> Scanbutton I added. I also added USBVIEW, it allows you to see what is
> happening with USB. sane-utils was there already.
> 
> I'll try out the Commands you gave in Terminal mode. It recognized the
> scanner, in both cases, as is, but could not open it or get it to work.
> 
> Analog things work intermittently, Digital things either Work or they
> don't!
> 
> Alfred!
> -----Original Message-----
> From: Patrick <optomatic at rogers.com>
> Reply-To: The Canadian Ubuntu Users Community
> <ubuntu-ca at lists.ubuntu.com>
> To: The Canadian Ubuntu Users Community <ubuntu-ca at lists.ubuntu.com>
> Subject: Re: Scanner
> Date: Sun, 09 Dec 2007 17:58:44 -0500
> 
> Hi William
> 
> I don't have an answer but I am having the same sort of trouble. Is your error message something like this:
> 
> Failed to open device 'snapscan:libusb:005:002";
> Invalid argument
> 
> This apparently is a usb bug in the kernel, introduced after Edgy.
> 
> If you google:
> 
> Failed to open device 'snapscan:libusb
> 
> You will get many results.
> 
> I read on an Ubuntu help page that we are supposed to install scanbutton 
> as a workaround.
> 
> Now I can't find the link. It did not work for me.
> 
> If you have not done so, why not install:
> sane-utils
> 
> You can run these commands just to make sure it's being found and so on:
> 
> $ sane-find-scanner
> found USB scanner (vendor=0x04b8 [EPSON], product=0x0122 [EPSON
> Scanner]) at libusb:005:002
> 
> $ scanimage -L
> device `snapscan:libusb:005:002' is a EPSON EPSON Scanner flatbed scanner
> 
> I posted to the sane list about this on Friday. I am still waiting to 
> hear back. My problem may not only be Kernel oriented. Under Edgy my 
> scanner only worked some of the time. I used it on a dual boot box. If 
> it was not re-initialized under it's native software in Windoze every so 
> often I found i would get this error too.
> 
> I wish I had more to offer. I will let you know if I hear back from the 
> sane list-Patrick
> 
> 
> 
> 
> 
> William Frick wrote:
> > Alfred wrote:
> >   
> >> Hi :
> >> I have two Scanners an Agfa e52 Snapscan and a Lexmark X73 Scanner. In
> >> both cases it comes up with an error, using any Scanner Program in
> >> Ubuntu Linux. The Agfa e52 Scanner is rated as being compatible with
> >> Linux Scanner programs, but it comes up with "invalid argument" in both
> >> cases. Then the program in question closes. Is there a scanner that
> >> works well with Ubuntu Linux 7.10? At the moment I can't scan anything.
> >> I need to cut out and actually Glue receipts to pieces of paper to send
> >> them to an Accountant. It's messy to say the least.
> >> Windblows, had a virus in it when I downloaded a set of Virus Detector
> >> Signatures from a Spanish Virus Detector Company. I use Linux more and
> >> more. Winders in my experience is a bunch of Garbage, not worth any
> >> money! I switched to Linux when I was having to format my hard Drive
> >> more than once a week! I had a Firewall, and all the other stuff, but it
> >> was totally Useless!
> >>
> >> Is there a Scanner that someone there has had good luck with?
> >>
> >> Alfred!
> >>
> >>
> >>   
> >>     
> > Alfred:
> >
> > I presume you launched  SANE to activate your scanner. I got a Canon 
> > MP160 Scanner/printer and it came up no problem. Another user I spoke 
> > with also had sucess with Canon under other distros so it would not be a 
> > bad choice. BTW the printer works well too !  An old HP flatbed work as 
> > well under 6.10 and later. I agree with the Windows opinion you have.
> >
> > Bill
> >
> >
> >   
> 
> 
> 
> 
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