Surely more than once you have seen the need to print a document in black and white or a grayscale image, either because of job demands or simply to save color ink. However, this option is not always as handy as we imagine within OS X, since within the standard print window it is more than likely that we will not find this option.
This is mainly due to the controllers themselves integrated into the system or because the manufacturer has not contemplated this option for the user. On the other hand with a little trick we can keep using this function within OS X in a relatively easy way when printing the document.
To carry out this «trick», the first thing we will do is place ourselves on the document and press the right mouse button (Ctrl + Click) to later choose «Open with» and select the Preview application. Now we will use the File> Export menu so that the Format option appears where we will choose PDF and later in Quartz filter we will select Black & White or Gray Tone if what we want is Black and White or gray scale respectively.
Once everything is done, it will save the document in the path that we have indicated in Location and we will be able to print that file in these two modes. Although it is not the most adequate or fast way to carry out prints of this type, but at least it is the safest way to access this option until the manufacturer of our printer in question deigns to put this feature within the controllers.
If, on the contrary, our problem is that it does not allow us to print anything through OS X, perhaps restoring the printing system can help us in this regard.