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

[Krutzbeuazen]

Strangely, the first time I scanned with no paper in the scanner, I got:

scanimage: open of device fujitsu:ScanSnap iX500:40368 failed: Error
during device I/O

>From then on, I always get a well-behaved:

scanimage: sane_start: Document feeder out of documents


I got my workflow finished, scanning to pdf with embedded OCR text. I am
a happy camper, can't wait to scan those piles tomorrow!

Manuel

On 03/24/2014 04:29 PM, m. allan noah wrote:
> Now, what happens if you try to scan with no paper in the hopper? Does
> the scanner work after that?
> 
> allan
> 
> On Mon, Mar 24, 2014 at 11:19 AM, Krutzbeuazen <krutzbeuazen at gmx.net> wrote:
>> 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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>>>
>>>
> 
> 
>