[sane-devel] Scan with SANE driver

m. allan noah kitno455 at gmail.com
Fri Jul 25 12:51:52 UTC 2014

1. Allan is a male name.

2. Do you get an error if you run command 2 first, after you have
turned off and turned on the power of the scanner?

3. The 'DEBUG' environment variable does not change which version of
the library is used, it only tells the library to output some
debugging text on STDERR.


On Fri, Jul 25, 2014 at 8:30 AM,  <YiHao at rst.ricoh.com> wrote:
> Dear allan:
> I'm wondering if I'm writing to a Mr. or Ms.
> Would you please give me some adivse about using the SANE driver:
> In the next table, Command① can be normal use,But Command② can not,
>> ---------------------------------------------------------------------------------------
> - Command①:  SANE_DEBUG_RICOH=255 scanimage --format=tiff  --mode=Lineart
>>pic.tiff -
> - Command②:  scanimage --format=tiff --mode=Lineart  >pic.tiff
> -
> ---------------------------------------------------------------------------------------
> When I used the Command②,  scanimage error has occurred.
> "scanimage :  sane_read: Error during device I/O"
> Excuse me:
> Whether the Command① is the debug version and the Command② is the release
> Version?
> How can I fixed the bug of the Command② ?
> The debug informatiton is detemined by "./configure" ?
> Look forward to your help, Thank you~
> Best Regard
> Yours Sincerely, Yihao

"The truth is an offense, but not a sin"

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