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Please! Please! Please, help - Grayscale printing on a Canon pixma


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I am an author not a GD and I would not usually be doing this work, but we had to part company with our GD halfway through the project.

I have a 158 page recipe book that I need to proof.  I proof by hand on a print out, but in order to save a bit of the planet I like to print in draft grayscale.  Even though I'm selecting draft greyscale in Pixma print settings on my Mac , it is coming out in draft i.e lighter than standard print, but still in colour.

I have read the various threads mentioning greyscale in the forums - most of them make no sense to me as they are written in computerese.  I have the Publisher manual, but there's nothing in there. I've tried the Help search, again no joy. 

Is there a way to print this document in draft black and white or grayscale because exporting to a pdf has not solved the problem.

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You should be able to force grayscale PDF output (both from RGB or CMYK document) when you export your PDF from Affinity apps by using the following setting within the "More" option page of PDF Export dialog box:

forcegray.jpg.1cd3802dd7266903e167511cbe49e848.jpg

Note though that when you subsequently print the file (e.g. using Adobe Acrobat Reader), the true gray tones of the PDF might still be printed in four colors (composite gray but using all four inks), thus not saving in practice ink usage, at all.

Adobe Acrobat Reader has an option that allows forcing printing in black ink only, but the option might be available only for PostScript printers (or if the feature is supported by the printer driver).

forcegray_acrobat.jpg.58f64372d352dc172a3fac0193e96b1c.jpg

If this printing option is available, there is no need to first force grayscale output when producing the PDF.

My experiments with Export within Preview were less than satisfactory, as Quartz Filter "Black and White" seemed to perform thresholding that would leave part of the colored objects unprinted (because thresholding would make them "white"), and "Gray Tone" prouced grays in four colors.

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