Inkjet printhead and method of printing with multiple drop volumes

1. A method of ejecting liquid droplets, comprising:

providing a printhead operable to eject liquid drops having a plurality of drop volumes V i , for i equal to 1 through n, where n≧2, with V j >V i when j>i, the printhead including a plurality of nozzles of different nozzle sizes through which the liquid drops are ejected, the plurality of nozzles including a first nozzle and a second nozzle, the size of the first nozzle being smaller when compared to the size of the second nozzle, the volume of the liquid drop ejected from the first nozzle being a minimum drop volume V min , wherein the minimum drop volume is not greater than any other drop volume that can be ejected from the first nozzle and the second nozzle of the printhead, and wherein a difference in drop volumes between successively larger drops δ k,k+1 =(V k+1 −V k )<V min , for k equal to 1 through n−1; and

ejecting liquid drops through the printhead.

2. The method of ejecting liquid droplets as set forth in claim 1 , wherein δ k, k+1 =δ k+1, k+2 , for k equal to 1 through n−2.

3. The method of ejecting liquid droplets as set forth in claim 1 , wherein δ k, k+1 ≠δ k+1, k+2 , for some value of k.

4. The method of ejecting liquid droplets as set forth in claim 1 , wherein:

δ min is a minimum value of δ k, k+1 for all k; and

δ k, k+1 for any k value is an integer multiple of δ min .

5. The method of ejecting liquid droplets as set forth in claim 1 , wherein:

δ min is a minimum value of δ k, k+1 for all k; and

2V 1 −V n is an integer multiple of δ min .

6. The method of ejecting liquid droplets as set forth in claim 1 , wherein V k+1 −V k , for k equal to 1 through n−1, is substantially uniform.

7. The method of ejecting liquid droplets as set forth in claim 1 , wherein V k+1 −V k , for k equal to 1 through n−1, is not substantially uniform for some value of k.