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

[Krutzbeuazen]

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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