Abstract: A device for printing stock standing on one edge, in particular a piece of mail in a postage meter and/or addressing machine, includes a guide plate for the stock which is inclined relative to the vertical and has a recessed region for a printing device. A rotating conveyor has a conveying plane which extends orthogonal to the guide plate and on which the stock stands on one edge and is transported in one direction while resting against the guide plate. The recessed region includes at least one cutout and a region of the guide plate downstream of the cutout is so far recessed from a bearing surface for the stock that there is no contact with the latter in this location. This ensures sufficient penetration time for the ink and prevents smearing of the printed image. The printing device is an ink jet printing device which is stationary during printing and which has a nozzle plane that extends parallel to the guide plate. The guide plate is inclined a maximum of 45.degree. from vertical.