Patent ID: 7585044

Claim:
A method of adjusting an ink jet imaging device, the method comprising: measuring a drop parameter for drops generated by each drop generator in a plurality of drop generators, each drop generator being configured to generate at least one drop in response to at least one drop generating signal, each drop generating signal including a fill portion, an eject portion, and a resonance tuning portion, a first portion of the drops generated by each drop generator in the plurality of drop generators being at a first fill density and a second portion of the drops generated by each drop generator in the plurality of drop generators being at a second fill density, the drop parameter being measured at the first fill density for each drop generator in the plurality of drop generators and at the second fill density for each drop generator in the plurality of drop generators; measuring a drop parameter difference for each drop generator of the plurality of drop generators, the drop parameter difference being a difference between the drop parameter measured for one of the drop generators at the first fill density and the drop parameter measured for the same drop generator at the second fill density; calculating a drop parameter difference normalization value with reference to the drop parameter differences measured for the plurality of drop generators; and adjusting the resonance tuning portion of the at least one drop generating signal for at least one drop generator in the plurality of drop generators so that the drop parameter difference for the at least one drop generator corresponds to the drop parameter difference normalization value.