Re: Canon pixma ip4300 printing every color withunderlaid grey

[morgan-32]

On Thu 29/10/09 3:09 AM , Karl Sinn <news@...> wrote:

Hi,

the setting of the composite gamma to 2 didn't change anything. I still have
the problem.

Is there anything else I could try?

Have you tried with the <a href="https://help.ubuntu.com/community/HardwareSupportComponentsPrinters/CanonPrinters/CanonPixmaIP4200#preview">Canon driver</a> (you will have to translate these instructions for your particular distro)?  Perhaps there is something causing your printer to dump extra black ink down.

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[Robert Krawitz-2]

   Date: Thu, 29 Oct 2009 11:18:20 -0400
   From: morgan@...

   =20
   On Thu 29/10/09  3:09 AM , Karl Sinn  wrote:Hi,
    the setting of the composite gamma to 2 didn't change anything. I
   still have=20
    the problem.
    Is there anything else I could try?
           Have you tried with the Canon driver (you will have to translate
   these instructions for your particular distro)?  Perhaps there is
   something causing your printer to dump extra black ink down.

He has the right driver.  It's not simply printing too much black
ink.  I looked at the scan, and it's actually printing composite gray
-- almost like for whatever reason it's trying to desaturate the
output somewhat.

Actually, for the original poster, this gives me another clue: could
you try setting the Color Correction to Uncorrected?  This control is
in the Output Control Common settings.

--
Robert Krawitz                                     <rlk@...>

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[Karl Sinn]

Am Sonntag, 1. November 2009 01:05:19 schrieb Robert Krawitz:
>     Is there anything else I could try?
>   Have you tried with the Canon driver (you will have to translate
>    these instructions for your particular distro)?  Perhaps there is
>    something causing your printer to dump extra black ink down.

Yes, with the canon driver it works.
 
> He has the right driver.  It's not simply printing too much black
> ink.  I looked at the scan, and it's actually printing composite gray
> -- almost like for whatever reason it's trying to desaturate the
> output somewhat.
>
> Actually, for the original poster, this gives me another clue: could
> you try setting the Color Correction to Uncorrected?  This control is
> in the Output Control Common settings.
 
I tried with Color Correction Uncorrected, and it's not getting better.

Karl


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[Robert Krawitz-2]

   From: Karl Sinn <news@...>
   Date: Mon, 2 Nov 2009 20:08:40 +0100

   > He has the right driver.  It's not simply printing too much black
   > ink.  I looked at the scan, and it's actually printing composite gray
   > -- almost like for whatever reason it's trying to desaturate the
   > output somewhat.
   >
   > Actually, for the original poster, this gives me another clue: could
   > you try setting the Color Correction to Uncorrected?  This control is
   > in the Output Control Common settings.

   I tried with Color Correction Uncorrected, and it's not getting better.

Is it different?

--
Robert Krawitz                                     <rlk@...>

Tall Clubs International  --  http://www.tall.org/ or 1-888-IM-TALL-2
Member of the League for Programming Freedom  --  http://ProgFree.org
Project lead for Gutenprint   --    http://gimp-print.sourceforge.net

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--Eric Crampton

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[Karl Sinn]

Am Dienstag, 3. November 2009 04:02:02 schrieb Robert Krawitz:

>    From: Karl Sinn <news@...>
>    Date: Mon, 2 Nov 2009 20:08:40 +0100
>
>    > He has the right driver.  It's not simply printing too much black
>    > ink.  I looked at the scan, and it's actually printing composite gray
>    > -- almost like for whatever reason it's trying to desaturate the
>    > output somewhat.
>    >
>    > Actually, for the original poster, this gives me another clue: could
>    > you try setting the Color Correction to Uncorrected?  This control is
>    > in the Output Control Common settings.
>
>    I tried with Color Correction Uncorrected, and it's not getting better.
>
> Is it different?
>

no, it's the same

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[Sascha Sommer]

Hi,

On Dienstag, 3. November 2009, Karl Sinn wrote:

> Am Dienstag, 3. November 2009 04:02:02 schrieb Robert Krawitz:
> >    From: Karl Sinn <news@...>
> >    Date: Mon, 2 Nov 2009 20:08:40 +0100
> >
> >    > He has the right driver.  It's not simply printing too much black
> >    > ink.  I looked at the scan, and it's actually printing composite
> >    > gray -- almost like for whatever reason it's trying to desaturate
> >    > the output somewhat.
> >    >
> >    > Actually, for the original poster, this gives me another clue: could
> >    > you try setting the Color Correction to Uncorrected?  This control
> >    > is in the Output Control Common settings.
> >
> >    I tried with Color Correction Uncorrected, and it's not getting
> > better.
> >
> > Is it different?
>
> no, it's the same

I think the problem might be also the internal settings in gutenprint.
/usr/share/gutenprint/5.2/xml/printers.xml contains:


      <parameters name="PIXMA_iP4300_params">
        <parameter type="float" name="Brightness">0.7</parameter>
        <parameter type="float" name="Density">0.6</parameter>
        <parameter type="float" name="Contrast">1.7</parameter>
        <parameter type="float" name="Gamma">0.9</parameter>
        <parameter type="float" name="BlackGamma">0.6</parameter>
      </parameters>

Can you change this to

      <parameters name="PIXMA_iP4300_params">
      </parameters>

before you adjust the Gamma within the printer-ui?

Regards

Sascha

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[Karl Sinn]

Hi,

> I think the problem might be also the internal settings in gutenprint.
> /usr/share/gutenprint/5.2/xml/printers.xml contains:
>
>
>       <parameters name="PIXMA_iP4300_params">
>         <parameter type="float" name="Brightness">0.7</parameter>
>         <parameter type="float" name="Density">0.6</parameter>
>         <parameter type="float" name="Contrast">1.7</parameter>
>         <parameter type="float" name="Gamma">0.9</parameter>
>         <parameter type="float" name="BlackGamma">0.6</parameter>
>       </parameters>
>
> Can you change this to
>
>       <parameters name="PIXMA_iP4300_params">
>       </parameters>
>
> before you adjust the Gamma within the printer-ui?

super, it looks like this solved my problem.

I this a problem only for me?
Or a problem of openSuse?
Should I file a bugreport in the openSuse bugzilla to resolv this for others
also?

Now it would be nice if I could print with all the resolution the printer can
print, but I'm going to open another thread for this.

Thanks a lot
Karl

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[Sascha Sommer]

Hi,

On Sonntag, 8. November 2009, Karl Sinn wrote:

> Hi,
>
> > I think the problem might be also the internal settings in gutenprint.
> > /usr/share/gutenprint/5.2/xml/printers.xml contains:
> >
> >
> >       <parameters name="PIXMA_iP4300_params">
> >         <parameter type="float" name="Brightness">0.7</parameter>
> >         <parameter type="float" name="Density">0.6</parameter>
> >         <parameter type="float" name="Contrast">1.7</parameter>
> >         <parameter type="float" name="Gamma">0.9</parameter>
> >         <parameter type="float" name="BlackGamma">0.6</parameter>
> >       </parameters>
> >
> > Can you change this to
> >
> >       <parameters name="PIXMA_iP4300_params">
> >       </parameters>
> >
> > before you adjust the Gamma within the printer-ui?
>
> super, it looks like this solved my problem.
>
> I this a problem only for me?
> Or a problem of openSuse?
> Should I file a bugreport in the openSuse bugzilla to resolv this for
> others also?
>

This is a generic problem then. What setting did you use for gamma?
The previous settings were created by someone else and they seemed to have
worked for him so I'm undecided on what to do now :(

Regards

Sascha

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[Karl Sinn]

> > I this a problem only for me?
> > Or a problem of openSuse?
> > Should I file a bugreport in the openSuse bugzilla to resolv this for
> > others also?
>
> This is a generic problem then. What setting did you use for gamma?
> The previous settings were created by someone else and they seemed to have
> worked for him so I'm undecided on what to do now :(

Right now it works without anything, fields are empty or "none".

The settings before where exactly as posted in the mail to me.

Do you want me to send you information, files...?

Thanks
Karl

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[Sascha Sommer]

Hi,

On Montag, 9. November 2009, Karl Sinn wrote:

> > > I this a problem only for me?
> > > Or a problem of openSuse?
> > > Should I file a bugreport in the openSuse bugzilla to resolv this for
> > > others also?
> >
> > This is a generic problem then. What setting did you use for gamma?
> > The previous settings were created by someone else and they seemed to
> > have worked for him so I'm undecided on what to do now :(
>
> Right now it works without anything, fields are empty or "none".
>
> The settings before where exactly as posted in the mail to me.
>
> Do you want me to send you information, files...?
>

Are these settings also ok for photo like images?

Regards

Sascha



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[Karl Sinn]

Hi,

> > Do you want me to send you information, files...?
>
> Are these settings also ok for photo like images?

no, actually not :-(

I printed it with turboprint (old version) and gutenprint. In the scan you can
see the difference. Although the scan is not giving an idea about the "real"
colors, it gives an idea about the difference.

The upper turboprint image is just like it should, and the gutenprint is far
to dark and gives an impression of grey rather than color.

BTW can the turboprint driver I have installed here be helpful to get the
information needed to implement borderless printing and high resolutions?

Karl


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[Sascha Sommer]

Hi,

On Mittwoch, 11. November 2009, Karl Sinn wrote:

> Hi,
>
> > > Do you want me to send you information, files...?
> >
> > Are these settings also ok for photo like images?
>
> no, actually not :-(
>
> I printed it with turboprint (old version) and gutenprint. In the scan you
> can see the difference. Although the scan is not giving an idea about the
> "real" colors, it gives an idea about the difference.
>
> The upper turboprint image is just like it should, and the gutenprint is
> far to dark and gives an impression of grey rather than color.
>

Try to increase Gamma like Robert explained. Maybe to 1.3 or so.

> BTW can the turboprint driver I have installed here be helpful to get the
> information needed to implement borderless printing and high resolutions?
>

Maybe. I don't have the time to work on borderless printing support, though.
Also you should not expect much improvement from the higher resolutions.
The image might still be to dark etc. Getting the colors right is a lot of
work and the canon gutenprint driver does not produce photo quality for other
printers, either.

Regards

Sascha

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