How do i shut off the colored ink and use only black ink

With respect to Canon Pixma ip1600 color usage during greyscale printing: Unfortunately, with many of the newer inkjet printer models & printer drivers, printing in greyscale actually consumes more color ink than normal draft printing. If you wish to save on color ink, it is suggested to do one of the following as available in your specific printer driver/software:

-Print in Normal - Draft mode (or super draft if available), plain paper.
-Print in Black & White mode only* - Draft mode on plain paper (typically this is the best way to save on ink/printing costs).
-For internet page printing, print using CleanPrint (3rd party software for printing most internet-based content from all major internet browsers. NOTE: not affiliated with Inkjet411):http://www.formatdynamics.com/cleanprint-4-0/
-Keep printer on at all times; power up cycles typically consume large amounts of ink (per Consumer Reports, Aug 2013 issue).

* Most printer models will still consume a small percentage of color ink due to normal ink/printer maintenance, such as between job 'spitting'. The purpose is to ensure the printhead is maintained to avoid clogging.
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Regarding Canon PGI-40 and CLI-41 cartridge repurchase or ink cartridge refilling, if you unable to find a retail / refill store close to you and you are trying to cut ink costs, may we suggest you try a remanufactured ink cartridge from http://www.inkplicity.com/ as their ink cartridges typically have the lowest cost in the USA, have a high reliability rating, come with a 1-year warranty and provide free shipping for all orders above $20 (available to US residents only).

Here is a link to retail ink cartridge refill stores:
http://inkjet411.com/?page_id=483
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For any additional questions please contact us directly: [email protected]

-Thank you

You can't really "shut off" the color ink with this printer, but you can trick it. If you rarely or never print in color you can put in a full black cartridge and keep your empty color cartridge in the printer. As long as the electronics are still good on the color cartridge your printer will print and won't use any color. You can also set your printer properties to greyscale.