Franking machine

Franking machine with an inkjet printing mechanism having at least one print head for printing flat postal objects, such as letters or postcards, inserted into or passing through the machine, comprised of a guide part (317) arranged so as to project from the print head and relative to its jet opening plane and having correlated therewith a transport device for transporting the postal objects between it and oppositely positioned conveying rollers rotating about axes oriented transverse to the conveying direction, wherein the transport device comprises two drive rollers forming together with the guide part a conveying path, which drive rollers, when viewed in the conveying direction (F), are supported before and behind the print head, and counterpressure rollers arranged opposite thereto are provided, which exert a pressure against the drive roller or the postal object to be transported therebetween, wherein the printing mechanism has at least two print heads (301A, 301B) having a common jet opening plane, in that the print heads (301A, 301B), when viewed onto the jet opening plane, are rectangularly shaped, positioned at an acute angle to the conveying direction (F) of the postal objects and positioned partially staggered relative to one another.