Bug#636916: cups-driver-gutenprint: Printing on Canon MP970 photo-black ink is displaced

[Viliam Housecat <viliam.housecat@gmail.com>]

Package: cups-driver-gutenprint
Version: 5.2.6-1
Severity: important
Tags: squeeze
Usertags: Canon, MP970, printing, ink, displaced

Hello,

The issue is that dark gray colours (I belive it is the photo-black ink) are
displaced on the paper. There is a gray partial image printed to the right of
the rest of the image. The gray partial image is also horizontally scaled. It
appears that the coordinate X is doubled: X = Xcorrect * 2.

The printer has got 2 black inks and 5 colour inks. The photo-black (light
black) is displaced, while the pigment-black (dark black) is ok. CUPS printer
test page looks ok at the first sight, except for the grayscale stripe, which
looks strange, likely part of it is missing. When printing from OpenOffice
black text is ok but photos print incorrectly. The OS is Debian 6.0
installed from DVD, without changes to printer settings.

Please suggest how to resolve it, or where to look at, or what additional
information I could provide, I am a technical user but relatively new to Linux.

Many thanks,
Viliam



-- System Information:
Debian Release: 6.0.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cups-driver-gutenprint depends on:
ii  cups                1.4.4-7              Common UNIX Printing System(tm) -
ii  cups-client         1.4.4-7              Common UNIX Printing System(tm) -
ii  ghostscript-cups    8.71~dfsg2-9         The GPL Ghostscript PostScript/PDF
ii  libc6               2.11.2-10            Embedded GNU C Library: Shared lib
ii  libcups2            1.4.4-7              Common UNIX Printing System(tm) -
ii  libcupsimage2       1.4.4-7              Common UNIX Printing System(tm) -
ii  libgcrypt11         1.4.5-2              LGPL Crypto library - runtime libr
ii  libgnutls26         2.8.6-1              the GNU TLS library - runtime libr
ii  libgssapi-krb5-2    1.8.3+dfsg-4squeeze1 MIT Kerberos runtime libraries - k
ii  libgutenprint2      5.2.6-1              runtime for the Gutenprint printer
ii  perl                5.10.1-17squeeze2    Larry Wall's Practical Extraction
ii  zlib1g              1:1.2.3.4.dfsg-3     compression library - runtime

cups-driver-gutenprint recommends no packages.

Versions of packages cups-driver-gutenprint suggests:
pn  gutenprint-doc                <none>     (no description available)
pn  gutenprint-locales            <none>     (no description available)

-- no debconf information