Patent ID: 8052272

Claim:
A fluid-ejection device comprising: a pair of rollers including a first roller and a second roller, the first roller having a first roller center line, the second roller having a second roller center line; and, a plurality of fluid-ejection mechanisms disposed opposite to the pair of rollers such that the fluid-ejection mechanisms are to eject fluid onto the media as the media is rolled past the first and the second rollers, the fluid-ejection mechanisms including one or more first fluid-ejection mechanisms and one or more second fluid-ejection mechanisms, wherein the first fluid-ejection mechanisms comprise one or more first printheads and one or more second printheads to eject the fluid onto the media, a first positioning line of the first fluid-ejection mechanisms defined at least substantially equally between the first and the second printheads, wherein the second fluid-ejection mechanisms comprise one or more third printheads and one or more fourth printheads to eject the fluid onto the media, a second positioning line of the second fluid-ejection mechanisms defined at least substantially equally between the third and the fourth printheads, and wherein the first and the second fluid-ejection mechanisms are positioned in relation to the rollers such that the first and the second positioning lines are located between the first and the second roller center lines, such that the first and the third printheads are not completely located between the first and the second roller center lines, and such that the second and the fourth printheads are completely located between the first and the second roller center lines.