Problem with printing a colormap

https://dl.dropboxusercontent.com/u/27090669/imageofcorrectplot.jpg https://dl.dropboxusercontent.com/u/27090669/imageshowingerror.jpg

I have a specific problem that occurs after printing. I create a figure (anything will do) with a colorbar. Then I export the figure as an 'eps' file using the renderer 'painters'.

The image looks fine, and I import it into Latex, converting it eventually into a pdf document. Looking at the screen, all is well BUT when the figure is printed a small error occurs in the colobar, the colors are offset.

This problem does NOT occur if I used 'opengl' or 'zbuffer'. However this is not a solution as these renderers make files that are way too large to handle. I have more than 100 image files in my PhD thesis.

The error doesn't occur if I use other software to view or convert to pdf. For example Adobe Illustrator or Ghostview. But it ALWAYS happens if I use 'painters' and the latex-pdf option.

As the problem only happens on printing (it all looks fine on the screen), I have taken a photo of the printouts on my phone. From the images you can see here that I am just plotting the matlab peaks function, so the error is nothing to do with my data. Here for example is some code. I use exportfig to save as 'eps' but you could just manually export - choosing the renderer as 'painters'.

    [X,Y,Z] = peaks(30);
    surfc(X,Y,Z)
    axis([-3 3 -3 3 -10 5])
    cmap=colormap(hsv(14))
    colormap cmap
    set(gca,'clim',[-6 8])
    colorbar

    exportfig(gcf,['test4_exportfig.eps'],...
        'Format','eps',...
        'Linemode','scaled',...
        'Fontmode','fixed','Fontsize',11,'Fontencoding','latin1',...
        'Resolution',600,'Color','cmyk','Renderer','painters')

Can anyone replicate this? Anyone know how I go about solving this... Could it be graphics driver? printer driver? matlab bug? Any ideas???

UPDATE: Here is the figure in a pdf created by someone else in a different version of MATLAB. This figure looks OK but the colorbar changes when I print it - can anyone else replicate this, or help me understand if it is a printer setting?<https://dl.dropboxusercontent.com/u/27090669/test.pdf>