An automated system for reading identification codes printed on slides that comprises: - guides for positioning in a fixed position a container with slots on the base of the same, inside which slides are housed in an orderly manner in spaces; - a comb device for lifting a row of slides; - a sensor for reading slides positioned on a bracket connected to two mobile carriages that move on axes of movement; - a door for inserting the container in the system; the system being characterised in that it comprises: - a lifting lever configured to move the comb device; - pulleys configured to actuate the two mobile carriages to move on the axes of movement; - a motor configured to drive the pulleys connected together by belts; where the two mobile carriages are configured to move following the actuation of the pulley, and wherein said mobile carriages are mechanically or electrically connected together and simultaneously move the comb device and the bracket on which the reading sensor is located, and further characterized in that the lifting lever is configured to move to under the row of slides to be lifted, enter the slot of the container and actuate the raising of the row of slides such that the distance between the reading sensor and the slides to be read is identical for each movement and synchronous with the row of slides to be lifted. - guides for positioning in a fixed position a container with slots on the base of the same, inside which slides are housed in an orderly manner in spaces; - a comb device for lifting a row of slides; - a sensor for reading slides positioned on a bracket connected to two mobile carriages that move on axes of movement; - a door for inserting the container in the system; the system being characterised in that it comprises: - a lifting lever configured to move the comb device; - pulleys configured to actuate the two mobile carriages to move on the axes of movement; - a motor configured to drive the pulleys connected together by belts; where the two mobile carriages are configured to move following the actuation of the pulley, and wherein said mobile carriages are mechanically or electrically connected together and simultaneously move the comb device and the bracket on which the reading sensor is located, and further characterized in that the lifting lever is configured to move to under the row of slides to be lifted, enter the slot of the container and actuate the raising of the row of slides such that the distance between the reading sensor and the slides to be read is identical for each movement and synchronous with the row of slides to be lifted. - a lifting lever configured to move the comb device; - pulleys configured to actuate the two mobile carriages to move on the axes of movement; - a motor configured to drive the pulleys connected together by belts; where the two mobile carriages are configured to move following the actuation of the pulley, and wherein said mobile carriages are mechanically or electrically connected together and simultaneously move the comb device and the bracket on which the reading sensor is located, and further characterized in that the lifting lever is configured to move to under the row of slides to be lifted, enter the slot of the container and actuate the raising of the row of slides such that the distance between the reading sensor and the slides to be read is identical for each movement and synchronous with the row of slides to be lifted.