I have mp210 and want to change my printer to just black and white as I don't do much color printing but my cartridge run's out and I have to keep replacing my color cartridge as well?

With respect to Canon MP210 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.
-----

Regarding Canon PG-30 or CL-31 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
-----
For any additional questions please contact us directly: [email protected]

-Thank you

1. In Windows: Go to Start>Devices and Printers>Right click on your default printer. Select printing preferences.

2. In the area that reads: Additional Features in the middle of the window, you'll see a selection that reads: Grayscale Printing Put a check in that box. This will print everything in black and white.

3. Go down to the bottom of that window and put a check on the box that reads: Always print with Current Settings.

4. Click Apply

5. Click OK.

Once you are just printing in black and white, the only cartridge you will have to replace is black ink-unless you change it back to color in the future-then you will have to replace the color cartridge as well when it is low.