Public bug reported:

Dear support team,

after an upgrade to 20.04 LTS, I cannot scan documents > 75 dpi (draft)
on a Samsung CLX 3305W MFP. It is attached via WLAN interface and makes
use of the sane backend, configured in /etc/sane.d/xerox_mfp.conf, with
a properly configured tcp line. (it worked in the past on 18.04 LTS)

1) Release:
lsb_release -rd
Description:    Ubuntu 20.04 LTS
Release:        20.04
- in addition I use the official Univeral Linux Drivers from Samsung 
uld_V1.00.39_01.17.tar.gz

2) Attached file with libsane* versions see: package_versions.txt

3) Scanning with a resolution > 75dpi should work.

4.) What happens during a scan with a resolution > 75dpi
- Samsung CLX-3305W device is properly detected, scans, but crashes before 
showing the document on the GUI.

- simple-scan, xsane and scanimage fail with every selected resolution selected 
with the same error:
Not a JPEG file: starts with 0x00 0x00

Please find files attached:
- simple scan console dump SANE Debug level 4)
- dll.conf

It would be great to have this issue solved.

Thanks for your support !
Elmar

** Affects: sane-backends (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "20200420_simple_scan_sane_debug_level_4.txt"
   
https://bugs.launchpad.net/bugs/1873906/+attachment/5357175/+files/20200420_simple_scan_sane_debug_level_4.txt

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https://bugs.launchpad.net/bugs/1873906

Title:
  Document Scan fails on Samsung CLX 3305W: Not a JPEG file: starts with
  0x00 0x00

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