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[Schlomo Schapiro <1385055@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Running Ubuntu 14.04 running stock hplip 3.14.3

Printer HP Officejet Pro X476dw MFP

hp-check -t output is attached

Problem:

Initially I noticed that printing documents with Hebrew fonts results in
low quality with fuzzy lines. After some debugging I was able to trace
this down to the fact that by default CUPS converts the print job to a
300dpi PS before giving it to the hp driver:

D [24/Oct/2014:07:22:01 +0200] [Job 261] Printer make and model: HP HP Officejet Pro X576dw MFP
D [24/Oct/2014:07:22:01 +0200] [Job 261] Running command line for pstops: pstops 261 schlomo hebrew-test.pdf 1 'finishings=3 media=iso_a4_210x297mm output-bin=face-down print-color-mode=color print-quality=4 sides=one-sided job-uuid=urn:uuid:c1da9224-d10b-3c2f-6a99-487121b8864c job-originating-host-name=localhost time-at-creation=1414128121 time-at-processing=1414128121 Duplex=None PageSize=A4'
D [24/Oct/2014:07:22:01 +0200] [Job 261] No resolution information found in the PPD file.
D [24/Oct/2014:07:22:01 +0200] [Job 261] Using image rendering resolution 300 dpi
D [24/Oct/2014:07:22:01 +0200] [Job 261] Running command line for gs: gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=ps2write -sOUTPUTFILE=%stdout -dLanguageLevel=3 -r300 -dCompressFonts=false -dNoT3CCITT -dNOINTERPOLATE -c 'save pop' -f /var/spool/cups/tmp/066575456f596

I was able to fix the problem by adding this resolution setting to the
PPD:

*DefaultResolution: 600x600dpi

As a result the print job is converted at 600dpi instead of 300dpi which
leads to the expected good result:

D [24/Oct/2014:07:22:33 +0200] [Job 262] Printer make and model: HP HP Officejet Pro X576dw MFP
D [24/Oct/2014:07:22:33 +0200] [Job 262] Running command line for pstops: pstops 262 schlomo hebrew-test.pdf 1 'Duplex=None finishings=3 media=iso_a4_210x297mm output-bin=face-down print-color-mode=color print-quality=4 sides=two-sided-long-edge job-uuid=urn:uuid:83e69459-c350-37e5-417d-9ca00f8c6bd9 job-originating-host-name=localhost time-at-creation=1414128153 time-at-processing=1414128153 PageSize=A4'
D [24/Oct/2014:07:22:33 +0200] [Job 262] Using image rendering resolution 600 dpi
D [24/Oct/2014:07:22:33 +0200] [Job 262] Running command line for gs: gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=ps2write -sOUTPUTFILE=%stdout -dLanguageLevel=3 -r600 -dCompressFonts=false -dNoT3CCITT -dNOINTERPOLATE -c 'save pop' -f /var/spool/cups/tmp/0666d544aec68

I think that the PPD is broken because it does not specify a resolution.

It would be nice if the PPD could be fixed.

** Affects: hplip
     Importance: Undecided
         Status: New

** Affects: hplip (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Output of hp-check -t"
   https://bugs.launchpad.net/bugs/1385055/+attachment/4243098/+files/hp-check.txt

** Also affects: hplip (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1385055

Title:
  HP Officejet Pro X476dw MFP prints in 300dpi

Status in HP Linux Imaging and Printing:
  New
Status in “hplip” package in Ubuntu:
  New

Bug description:
  Running Ubuntu 14.04 running stock hplip 3.14.3

  Printer HP Officejet Pro X476dw MFP

  hp-check -t output is attached

  Problem:

  Initially I noticed that printing documents with Hebrew fonts results
  in low quality with fuzzy lines. After some debugging I was able to
  trace this down to the fact that by default CUPS converts the print
  job to a 300dpi PS before giving it to the hp driver:

  D [24/Oct/2014:07:22:01 +0200] [Job 261] Printer make and model: HP HP Officejet Pro X576dw MFP
  D [24/Oct/2014:07:22:01 +0200] [Job 261] Running command line for pstops: pstops 261 schlomo hebrew-test.pdf 1 'finishings=3 media=iso_a4_210x297mm output-bin=face-down print-color-mode=color print-quality=4 sides=one-sided job-uuid=urn:uuid:c1da9224-d10b-3c2f-6a99-487121b8864c job-originating-host-name=localhost time-at-creation=1414128121 time-at-processing=1414128121 Duplex=None PageSize=A4'
  D [24/Oct/2014:07:22:01 +0200] [Job 261] No resolution information found in the PPD file.
  D [24/Oct/2014:07:22:01 +0200] [Job 261] Using image rendering resolution 300 dpi
  D [24/Oct/2014:07:22:01 +0200] [Job 261] Running command line for gs: gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=ps2write -sOUTPUTFILE=%stdout -dLanguageLevel=3 -r300 -dCompressFonts=false -dNoT3CCITT -dNOINTERPOLATE -c 'save pop' -f /var/spool/cups/tmp/066575456f596

  I was able to fix the problem by adding this resolution setting to the
  PPD:

  *DefaultResolution: 600x600dpi

  As a result the print job is converted at 600dpi instead of 300dpi
  which leads to the expected good result:

  D [24/Oct/2014:07:22:33 +0200] [Job 262] Printer make and model: HP HP Officejet Pro X576dw MFP
  D [24/Oct/2014:07:22:33 +0200] [Job 262] Running command line for pstops: pstops 262 schlomo hebrew-test.pdf 1 'Duplex=None finishings=3 media=iso_a4_210x297mm output-bin=face-down print-color-mode=color print-quality=4 sides=two-sided-long-edge job-uuid=urn:uuid:83e69459-c350-37e5-417d-9ca00f8c6bd9 job-originating-host-name=localhost time-at-creation=1414128153 time-at-processing=1414128153 PageSize=A4'
  D [24/Oct/2014:07:22:33 +0200] [Job 262] Using image rendering resolution 600 dpi
  D [24/Oct/2014:07:22:33 +0200] [Job 262] Running command line for gs: gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=ps2write -sOUTPUTFILE=%stdout -dLanguageLevel=3 -r600 -dCompressFonts=false -dNoT3CCITT -dNOINTERPOLATE -c 'save pop' -f /var/spool/cups/tmp/0666d544aec68

  I think that the PPD is broken because it does not specify a
  resolution.

  It would be nice if the PPD could be fixed.

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