Printing in grayscale with AirPrint

Did you all think I was dead? Unfortunately for you, I am not. I’ve just been fairly busy with work and with my renewed interest in photography. Speaking of which, all of you should follow my Flickr photostream, which I update daily.

So, you’ve got the shiny new iOS 4.2 on your iPhone 4 and you have enabled AirPrint sharing on your Mac, using either the free Hacktivator or one of the commercial packages. You are very satisfied (albeit a bit doubtful about actually using it in the future), except for one thing: it prints in color, and you really wish it could print in grayscale, because toner is not cheap.

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Manual duplex printing on a laser printer

My laser printer, a Samsung CLX-3175, does not have any tool for automatic duplex printing. Achieving such result manually is not difficult, but may take some trial and error in order to get the settings right. That’s exactly what I’ve done, and I’m writing this post as a note to myself. Should it be useful to anybody else, however, by all means let me know with a comment.

Keep in mind that this is for my own printer, and that I use OS X 10.6 “Snow Leopard.” Results may vary with different printers and/or operating systems, so make your own tests. If your printer outputs pages “face down,” this will probably work as it is. Most ink-jet printers on the other hand output prints “face up,” so some adjustments will be necessary.

In any case the steps for my own printer are very, very easy (once you’ve figured them out correctly):

  1. Print all odd pages in normal order
  2. If the total number of pages is an odd number, take the last sheet and put it away for the time being
  3. Take the (remaining) sheets and put them back into the tray after rotating them 180°. Do not flip them in any way!
  4. Print all even pages in reverse order
  5. If you put the last sheet away in step 2, put it back at the end of the stack
  6. There is no step 6

Enjoy. 🙂


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