[sane-devel] Re: Error when reading from Fujitsu fi-5120c

[m. allan noah]

On Fri, 25 Aug 2006, Matthew wrote:

> m. allan noah wrote:
>>> scanimage: scanning image of size 5104x6600 pixels at 1 bits/pixel
>>> scanimage: acquiring gray frame
>>> [fujitsu] sane_read: start
>>> [fujitsu] read_from_scanner: start
>>> [fujitsu] read_from_scanner: si:0 to:4210800 rx:0 re:4210800 bu:65536
>>> pa:65076
>>> [fujitsu] do_usb_cmd: start
>>> [fujitsu] in: return error 'End of file reached'
>>> [fujitsu] read_from_scanner: got EOF, changing to GOOD
>>
>> hmm. i bet that is the culprit. i bet we should catch that eof, and run
>> status anyway. instead of continuing. normally the 5120 is in blocking
>> mode, and does not do this. even if we get the io error later to work,
>> this will corrupt the image anyway, so it has to be fixed.
>>
>> did you have the scanner connected to windows, then connect it to linux,
>> without power cycling the scanner? if the windows driver sets up the
>> scanner for some kind of non-blocking or buffering mode, this would happen.
>>
>> if you power cycle the scanner while its connected to linux, does this
>> happen still?
>>
>> allan
>>
>
> Ok, time for me to sound extremely stupid, but how do I power cycle the
> scanner.  If your talking about simply turning it off and on then yes I
> have done that and it still errors out.
>

better pull the power cord and wait 30 seconds or so before reconnecting, 
just to make sure.

allan

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