A method for printing a decorative pattern onto a paper by means of a digital printing facility that comprises - at least one primer application unit for applying a primer, - at least one printing unit for printing the decorative pattern onto the applied primer, and - at least one dryer (6, 16) for drying at least one part of the paper after the primer and/or decorative pattern has been applied, the method comprising the following steps: a) providing an unprinted base paper, b) applying a primer to the surface of the unprinted base paper, c) printing at least one grid marking and least one decorative pattern onto the primer-coated base paper, thereby obtaining a printed base paper, d) detecting a grid spacing between at least two points of the grid marking of the printed base paper to determine an actual state of the printed base paper, e) comparing the detected grid spacing of the grid marking of the printed base paper according to the actual state with a grid spacing digitally stored as a target state for the printed decorative pattern, f) amending at least one process parameter for controlling the application of the primer and/or the printing of the grid marking and/or the drying until a predetermined criterion is met, wherein the grid marking is integrated into the decorative pattern and is macroscopically invisible. - at least one primer application unit for applying a primer, - at least one printing unit for printing the decorative pattern onto the applied primer, and - at least one dryer (6, 16) for drying at least one part of the paper after the primer and/or decorative pattern has been applied, the method comprising the following steps: a) providing an unprinted base paper, b) applying a primer to the surface of the unprinted base paper, c) printing at least one grid marking and least one decorative pattern onto the primer-coated base paper, thereby obtaining a printed base paper, d) detecting a grid spacing between at least two points of the grid marking of the printed base paper to determine an actual state of the printed base paper, e) comparing the detected grid spacing of the grid marking of the printed base paper according to the actual state with a grid spacing digitally stored as a target state for the printed decorative pattern, f) amending at least one process parameter for controlling the application of the primer and/or the printing of the grid marking and/or the drying until a predetermined criterion is met, wherein the grid marking is integrated into the decorative pattern and is macroscopically invisible. the method comprising the following steps: a) providing an unprinted base paper, b) applying a primer to the surface of the unprinted base paper, c) printing at least one grid marking and least one decorative pattern onto the primer-coated base paper, thereby obtaining a printed base paper, d) detecting a grid spacing between at least two points of the grid marking of the printed base paper to determine an actual state of the printed base paper, e) comparing the detected grid spacing of the grid marking of the printed base paper according to the actual state with a grid spacing digitally stored as a target state for the printed decorative pattern, f) amending at least one process parameter for controlling the application of the primer and/or the printing of the grid marking and/or the drying a) providing an unprinted base paper, b) applying a primer to the surface of the unprinted base paper, c) printing at least one grid marking and least one decorative pattern onto the primer-coated base paper, thereby obtaining a printed base paper, d) detecting a grid spacing between at least two points of the grid marking of the printed base paper to determine an actual state of the printed base paper, e) comparing the detected grid spacing of the grid marking of the printed base paper according to the actual state with a grid spacing digitally stored as a target state for the printed decorative pattern, f) amending at least one process parameter for controlling the application of the primer and/or the printing of the grid marking and/or the drying until a predetermined criterion is met, wherein the grid marking is integrated into the decorative pattern and is macroscopically invisible.