On 20/09/2015 22:21, nospam wrote:
In article , John McWilliams
wrote:

My wife thinks that if I use it for B&W only I may end up running the
color cartridges out as well.

she is mistaken. they will not be used.

This is patently wrong for any number of printers.

it's patently right for any number of printers, including epson.

it's patently wrong for the R1800/2400, 3880,and P600/800 discussed in
this thread.