Device for arranging a print head in a certain position, including: - a main unit comprising a main frame providing a primary abutting part and a support part ; - a sub-unit comprising a sub-frame providing a secondary abutting part , a connecting member movable relative to the sub-frame between a first position (P1) and a second position (P2), and an urging member for urging the connecting member from the second position (P2) towards the first position (P1), and - a print head connectable to the connecting member to form a sub-assembly with the sub-unit , wherein the main unit is configured to accommodate a sub-assembly formed by the sub-unit and the print head in a preliminary position (PP) in which, with the connecting member in the first position (P1), the print head contacts the support part , and the secondary abutting part is spaced apart from the primary abutting part , wherein the support part is configured to mate with the print head to prevent lateral displacement of the print head relative to the main frame , wherein the sub-frame is movable relative to the main frame from the preliminary position (PP) towards a final position (PF) against a force exerted onto the sub-frame by the urging member while the connecting member moves from the first position (P1) towards the second position (P2) against a force exerted onto the connecting member by the urging member , under the influence of a force exerted onto the print head by the support part , wherein in the final position (PF), the secondary abutting part abuts the primary abutting part , wherein the main unit is configured to hold a sub-assembly of the sub-unit and the print head with the nozzle face of the print head oriented in parallel to a plane defined by two orthogonal axes (X, Y), wherein the sub-unit is configured to move from the preliminary position (PP) towards the final position (PF) by a translation along an axis (Z) normal to said plane. - a main unit comprising a main frame providing a primary abutting part and a support part ; - a sub-unit comprising a sub-frame providing a secondary abutting part , a connecting member movable relative to the sub-frame between a first position (P1) and a second position (P2), and an urging member for urging the connecting member from the second position (P2) towards the first position (P1), and - a print head connectable to the connecting member to form a sub-assembly with the sub-unit , wherein the main unit is configured to accommodate a sub-assembly formed by the sub-unit and the print head in a preliminary position (PP) in which, with the connecting member in the first position (P1), the print head contacts the support part , and the secondary abutting part is spaced apart from the primary abutting part , wherein the support part is configured to mate with the print head to prevent lateral displacement of the print head relative to the main frame , wherein the sub-frame is movable relative to the main frame from the preliminary position (PP) towards a final position (PF) against a force exerted onto the sub-frame by the urging member while the connecting member moves from the first position (P1) towards the second position (P2) against a force exerted onto the connecting member by the urging member , under the influence of a force exerted onto the print head by the support part , wherein in the final position (PF), the secondary abutting part abuts the primary abutting part , wherein the main unit is configured to hold a sub-assembly of the sub-unit and the print head with the nozzle face of the print head oriented in parallel to a plane defined by two orthogonal axes (X, Y), wherein the sub-unit is configured to move from the preliminary position (PP) towards the final position (PF) by a translation along an axis (Z) normal to said plane. <EOS>