Patent ID: 8596742
Filing Date: 2013-12-03
Classification: B41J

Abstract:
1. An inkjet printhead comprising: an inkjet pen supported by a housing, the inkjet pen having a nozzle opening a side of the housing, the inkjet pen being configured such that the nozzle opening both faces a substrate and is spaced from the substrate by a gap; and a structure adjacent to the nozzle opening supported at a leading edge of the housing, the leading edge being ahead of the nozzle opening relative to a direction of movement of the substrate, the structure being configured to extend into the gap at the leading edge to control a boundary layer of air flow in the gap surrounding the nozzle opening, wherein the structure comprises a baffle that is attached to the side of the housing between the nozzle opening and the leading edge, the baffle being configured to divert the boundary layer away from at least a portion of a droplet path from the nozzle opening, and wherein the baffle comprises a flow-through channel adjacent to the side of the housing, the flow-through channel being configured to reduce recirculation air flow in the gap surrounding the nozzle opening.