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[Luboš Doležel <1245578@xxxxxxxxxxxxxxxxxx>]

Sorry for spamming, but my previous patch was still guesswork and worked
only with a single resolution.

This new patch now uses values from scanner responses and seems to be
fully functional. Enjoy.

** Patch added: "hpscan-final.patch"
   https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/1245578/+attachment/4330834/+files/hpscan-final.patch

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https://bugs.launchpad.net/bugs/1245578

Title:
  cannot disable JPEG compression when scanning (Deskjet 3520 All-in-
  one)

Status in hplip package in Ubuntu:
  Confirmed

Bug description:
  I've already filed a "question"
  (https://answers.launchpad.net/hplip/+question/238002), but I came to
  the conclusion it's indeed a bug.

  I have a Deskjet 3520 All-in-one and no matter what I do, scans always
  arrive with JPEG artifacts. For example, with hp-scan, when I disable
  compression, I get the following error message:

  "error: Unable to set option compression to value None"

  When running XSane, in the advanced settings menu, I get JPEG as only
  compression option. Manually setting the compression to "none" in the
  drc file has no positive effect either. In any case, scans arrive with
  severe JPEG artifacts.

  Used hplip version is 3.13.10 on Kubuntu 13.10. I've attached the
  output of hp-check.

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