[sane-devel] Out of Memory Error

Thu Aug 26 21:18:28 BST 2021

Le 2021-08-26 21:57, Mick Sulley a écrit :
> Hi Thierry,
> 
> mick at Mint20Desk:~$ scanimage --version
> scanimage (sane-backends) 1.0.32.102-26749ce; backend version 1.0.32
> 
> SANE_DEBUG_ESCL=255 scanimage -d 'escl:http://localhost:80' 2>
> debug-escl.log > test.pnm
> 
> log attached
> 
> The scanner is connected over wireless to the local network.  I ran -
> 
> scanimage -d 'http://127.0.0.1:80' 2> escl-ip.log >tes.pnm
> 
> escl-ip.log is attached but tes.pnm is empty
> 
> regards
Hi Mick,

http://localhost:80 represents the server address on your computer, your 
computer is not a scanner:
[
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL was not found on this server.</p>
<hr>
<address>Apache/2.4.41 (Ubuntu) Server at localhost Port 80</address>
</body></html>

]

To start you need to know the ip of your scanner:
# avahi-browse -rvt _uscan._tcp # use http
or
# avahi-browse -rvt _uscans._tcp # use https

Then you can scan :

# scanimage -d 'escl:http(s)://<address>:<ip>' > test.pnm

you can fix your configuration in /etc/sane.d/escl.conf

Thierry

> 
> Mick
> 
> 
> On 26/08/2021 20:21, Thierry Huchard wrote:
>> Le 2021-08-26 20:23, Thierry Huchard a écrit :
>>> Le 2021-08-26 13:17, Mick Sulley a écrit :
>>>> Running Mint 20.2  I get an "Out of memory" error when I try to 
>>>> scan.
>>>> 
>>>> My scanner is a Brother DCP-J7720W which is wireless connected,
>>>> 
>>>> If I run from a terminal I see a pop up saying
>>>> 
>>>> "Failed to open device 'escl:http://localhost:80': Out of memory"
>>>> 
>>>> This is what I see in the terminal -
>>>> 
>>>> mick at Mint20Desk:~$ xsane
>>>> file.xml:1: parser error : Space required after the Public 
>>>> Identifier
>>>> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
>>>>                                                  ^
>>>> file.xml:1: parser error : SystemLiteral " or ' expected
>>>> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
>>>>                                                  ^
>>>> file.xml:1: parser error : SYSTEM or PUBLIC, the URI is missing
>>>> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
>>>>                                                  ^
>>>> file.xml:9: parser error : Opening and ending tag mismatch: hr line 
>>>> 0 and body
>>>> </body></html>
>>>>        ^
>>>> file.xml:9: parser error : Opening and ending tag mismatch: body 
>>>> line 0 and html
>>>> </body></html>
>>>>               ^
>>>> file.xml:10: parser error : EndTag: '</' not found
>>>> 
>>>> ^
>>>> 
>>>> To fix another memory problem in September last year I did -
>>>> 
>>>> $ sudo add-apt-repository ppa:sane-project/sane-git
>>>> $ sudo apt-get update
>>>> $ sudo apt install libsane libsane-common sane-utils
>>>> 
>>> Hi Mike,
>>> 
>>> Can you give me the version of sane
>>> scanimage --version
>>> And give me the log of this command:
>>> SANE_DEBUG_ESCL=255 scanimage -d 'escl:http://localhost:80' 2>
>>> debug-escl.log > test.pnm
>>> 
>>> Thierry
>> Hi Mick,
>> 
>> Can you tell me more, your URL is amazing.
>> If you used ipp-usb or ippusbxd your URL would be 
>> http://localhost:60000
>> How is your device connected?
>> try :
>> scanimage -d 'http://127.0.0.1:80' 2> escl-ip.log >tes.pnm
>> 
>> Thierry
>> 
>>> 
>>>> That is still in place.
>>>> 
>>>> Any ideas how to fix this?
>>>> 
>>>> Thanks
>>>> 
>>>> Mick