how does the ix6520 utilize grey ink

[wager1]

I am planning to purchase the above (ix6520 large fornat printer) to replace my aging i9000

but noticed there is a grey ink tank available for it. I often print B&W and would like to avoid the color casts

one sometime gets using the color inks.. Anyone have any info on this?

[Michael]

Hello wager1.

The iX6520 does not have a grey ink tank.  The unit uses cyan, magenta, yellow, black and pigment black tanks. 

When color photos or graphics are printed, combinations of the four dye based inks are used.

More information on the printer can be found at the following link:

http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_corporate_graphics_art_p...