Gas impingement device, recording substrate treatment apparatus and printing system comprising such gas impingement device

A gas impingement device comprising:

• a hollow body;
• a gas inlet fluidly connected to the hollow body;
• and
• a first surface comprising a first axis and a second axis,
• wherein the second axis is substantially perpendicular to the first axis,
• wherein the first surface is provided with a plurality of gas outlets, each of the plurality of gas outlets having a diameter doutlet, the plurality of gas outlets being fluidly connected to the body and being arranged in a pattern,
• wherein the pattern comprises a number of substantially parallel rows extending in a second direction, each row comprising a fraction of the plurality of gas outlets such that the plurality of gas outlets is substantially equally distributed across the first surface and such that the fraction of the plurality of gas outlets on each row is arranged at an equidistant stitch, dstitch,
• wherein the second direction is arranged at an angle α with the first axis of the first surface,
• wherein α≥arctan(doutlet/dstitch), and
• wherein in operation a sheet of a printing substrate is transported in a first direction such that an edge of the printing substrate is substantially parallel to the first axis of the first surface.