A method for printing with a scanning inkjet printer, the printer comprising a medium support surface and a carriage mounted reciprocally moveable in a scanning direction over the medium support surface, the carriage holding a plurality of separate print head units (12a - d), each print head unit (12a - d) comprising a plurality of nozzle rows (50a - d) extending in a non-scanning direction perpendicular to the scanning direction, wherein each nozzle row (50a - d) is in fluid communication to a respective marking material supply reservoir (70a - f) for supplying a predetermined marking material type to said nozzle row (50a - d), the separate print head units (12a - d) extending in the non-scanning direction in a staggered configuration, such that the nozzle rows (50a - d) of adjacent print head units (12a - d) partially overlap with one another when viewed in the scanning direction, the method comprising the steps of: - supplying different first marking material types with each a different colorant from a plurality of different first marking material supply reservoirs (70a - d) to respective first nozzle rows (50a - d) of first print head units (12b - c), each first marking material supply reservoir (70a - d) holding a single first marking material type, such that each of said first print head units (12b - c) simultaneously jets different first marking material types onto a print medium (8, 9); and characterised in that the method comprises: - supplying a further marking material type different from the first marking material types and being one of a white ink or varnish from a further marking material supply reservoir (70e - f) separate from the first marking material supply reservoirs (70a - d) to all nozzle rows (50a - d) of a further print head unit (12a, 12d) different from the first print head units (12b - c), such that said further print head unit (12a, 12d) jets said further marking material type from all its nozzle rows (50a - d) onto the print medium (8, 9) at a deposition rate per area at least N times greater than a deposition rate at which a first print head unit (12b - c) jets each individual different first marking material type with its a respective colorant, wherein N is the number of marking material types with different colorants. - supplying different first marking material types with each a different colorant from a plurality of different first marking material supply reservoirs (70a - d) to respective first nozzle rows (50a - d) of first print head units (12b - c), each first marking material supply reservoir (70a - d) holding a single first marking material type, such that each of said first print head units (12b - c) simultaneously jets different first marking material types onto a print medium (8, 9); and characterised in that the method comprises: - supplying a further marking material type different from the first marking material types and being one of a white ink or varnish from a further marking material supply reservoir (70e - f) separate from the first marking material supply reservoirs (70a - d) to all nozzle rows (50a - d) of a further print head unit (12a, 12d) different from the first print head units (12b - c), such that said further print head unit (12a, 12d) jets said further marking material type from all its nozzle rows (50a - d) onto the print medium (8, 9) at a deposition rate per area at least N times greater than a deposition rate at which a first print head unit (12b - c) jets each individual different first marking material type with its a respective colorant, wherein N is the number of marking material types with different colorants. - supplying a further marking material type different from the first marking material types and being one of a white ink or varnish from a further marking material supply reservoir (70e - f) separate from the first marking material supply reservoirs (70a - d) to all nozzle rows (50a - d) of a further print head unit (12a, 12d) different from the first print head units (12b - c), such that said further print head unit (12a, 12d) jets said further marking material type from all its nozzle rows (50a - d) onto the print medium (8, 9) at a deposition rate per area at least N times greater than a deposition rate at which a first print head unit (12b - c) jets each individual different first marking material type with its a respective colorant, wherein N is the number of marking material types with different colorants.