[sane-devel] Fujitsu ScanSnap iX500 "Brain-dead scanner" in SANE 1.0.25

[Krutzbeuazen]

Spot on!
With this change, it all behaves as expected: all pages are scanned, and
scanimage continues to load pages after this until it has all of them.

What can I say - Thank you, you rock! :-)

Manuel

On 03/24/2014 04:06 PM, m. allan noah wrote:
> Yes- I had a similar report of this from another user a few days ago.
> I think the problem is here:
> 
> If you edit backend/fujitsu.c and change line 2215 from
> 
> s->hopper_before_op = 1;
> to
> s->hopper_before_op = 0;
> 
> and recompile, that might help. I added that code specifically for
> this scanner. Without it, the scanner would lock up when you try to
> scan with no paper in the hopper.
> 
> Please try, and let me know if that works.
> 
> allan
> 
> On Mon, Mar 24, 2014 at 11:01 AM, Krutzbeuazen <krutzbeuazen at gmx.net> wrote:
>> Thank you for the additional info.
>> I will have a look from time to time, and eventually find out if USB3
>> has any real-world advantages here.
>>
>>
>> I might have found a bug now:
>>> scanimage --format=tiff --batch --mode Color --resolution 300dpi
>> --source "ADF Duplex" --buffermode On
>>
>> This scans all pages in the feeder into the scanners buffer. This is
>> pretty fast. So fast, that after all eight pages scanned into the
>> scanner, scanimage has only grabbed four pages.
>> Scanimage stops loading more pages from the scanners buffer as soon as
>> "document feeder out of documents", which is when scanimage exits.
>>
>> #################
>>    [..]
>> [fujitsu] read_from_scanner: no bytes this pass
>>    [repeated]
>> [fujitsu] sense_handler: start
>> [fujitsu] Sense=00, ASC=00, ASCQ=00, EOM=1, ILI=1, info=0x007788
>> [fujitsu] No sense: ILI remainder:30600
>> [fujitsu] No sense: EOM
>> [fujitsu] do_usb_cmd: short read via rs, 30600/61200
>> Scanned page 5. (scanner status = 5)
>> Scanning page 6
>> [fujitsu] get_pixelsize: scanner requests: crop=1, lut=0
>> Scanned page 6. (scanner status = 5)
>> Scanning page 7
>> [fujitsu] read_from_scanner: no bytes this pass
>>    [repeated]
>> [fujitsu] sense_handler: start
>> [fujitsu] Sense=00, ASC=00, ASCQ=00, EOM=1, ILI=1, info=0x007788
>> [fujitsu] No sense: ILI remainder:30600
>> [fujitsu] No sense: EOM
>> [fujitsu] do_usb_cmd: short read via rs, 30600/61200
>> Scanned page 7. (scanner status = 5)
>> Scanning page 8
>> [fujitsu] get_pixelsize: scanner requests: crop=1, lut=0
>> Scanned page 8. (scanner status = 5)
>> Scanning page 9
>> [fujitsu] sane_start: ERROR: cannot load page
>> scanimage: sane_start: Document feeder out of documents
>>
>> ################
>>
>> Of course I might simply scan without the buffer. The whole workflow,
>> until all scans are on the computer, probably won't be slower that way.
>>
>> Cheers,
>>
>> Manuel
>>
>> On 03/24/2014 03:29 PM, Mark Buda wrote:
>>> This is SANE bug 314545 and the cause is a bug in the Linux USB
>>> code. The linux-usb people are aware of it and working on a patch.
>>>
>>> Sent from my iPad
>>>
>>>> On Mar 24, 2014, at 9:13 AM, Krutzbeuazen <krutzbeuazen at gmx.net>
>>>> wrote:
>>>>
>>>> Oh wow! It works on a regular USB2 port! I used the same USB3 port
>>>> before, both with a USB3 cable and a USB2 cable. Thank you so
>>>> much!
>>>>
>>>> The software is vuescan: http://www.hamrick.com/ Payware,
>>>> bin-only, no CLI, but some interesting auto-enhancement-features.
>>>> And it supports scanners which never made it to linux or SANE.
>>>>
>>>> Now, on to building that workflow which will free me from all
>>>> those dead tree slices!
>>>>
>>>> Thank you again, eventually I would probably have given up. So
>>>> close!
>>>>
>>>> Manuel
>>>>
>>>>> On 03/24/2014 01:43 PM, m. allan noah wrote: Are you using a USB
>>>>> 3 port? There have been many reports of problems with USB 3
>>>>> under Linux. Also, what is this proprietary software of which
>>>>> you speak? Something which runs under Linux?
>>>>>
>>>>> allan
>>>>
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>>>
>>
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> 
> 
>