[sane-devel] ESCL test

Thierry HUCAHRD thierry at ordissimo.com
Tue Jan 28 21:30:03 GMT 2020

Le 2020-01-28 21:41, Ralph Little a écrit :
> Hi,
> My emailer garbled that. Here it is as an attachment.
> Hopefully, this will be better.
> Cheers,
> Ralph
> On Tue, Jan 28, 2020 at 12:22 PM Ralph Little <skelband at gmail.com>
> wrote:
>> Hi,
>> I finally got around to testing the new escl backend with my HP
>> OfficeJet 6978.
>> It does appear to be supported on two ports, one encrypted:
>> device `escl:' is a ESCL HP-OfficeJet-6978 SSL
>> flatbed scanner
>> device `escl:' is a ESCL HP-OfficeJet-6978
>> flatbed scanner
>> Preview and higher resolution scans are OK.
>> However, there appears to be something squiffy about the geometry
>> options. I cannot get a full sheet scan.
>> This is what I get from scanimage as regards the available options:
>> Options specific to device `escl:':
>> Scan mode:
>> --mode Gray|Color [Gray]
>> Selects the scan mode (e.g., lineart, monochrome, or color).
>> --resolution 75|100|200|300|600|1200dpi [75]
>> Sets the resolution of the scanned image.
>> --preview[=(yes|no)] [no]
>> Request a preview-quality scan.
>> --preview-in-gray[=(yes|no)] [no]
>> Request that all previews are done in monochrome mode.  On a
>> three-pass scanner this cuts down the number of passes to
>> one and on a
>> one-pass scanner, it reduces the memory requirements and
>> scan-time of
>> the preview.
>> Geometry:
>> -l 0..0.0122375pel (in steps of 1.52588e-05) [0.000244141]
>> Top-left x position of scan area.
>> -t 0..0.0156708pel (in steps of 1.52588e-05) [0.000534058]
>> Top-left y position of scan area.
>> -x 0..0.0119934pel (in steps of 1.52588e-05) [0.0386658]
>> Width of scan-area.
>> -y 0..0.0151367pel (in steps of 1.52588e-05) [0.0529785]
>> Height of scan-area.
>> Using the current PPA from Rolf as of today, which is probably gonna
>> be GIT COMMIT 1942C5FD.
>> Cheers,
>> Ralph

Hello, Ralf,

Thank you for the feedback and for the log.
I'm working on geometry.
I will propose a patch soon.


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