Automatic analyzer and display method for automatic analyzer

An automatic analyzer comprising a specimen container, a reagent container, a reactor container, a specimen extracting and injecting unit for extracting a part of a specimen from the specimen container and for injecting the extracted part of a specimen into the reaction container, and a reagent extracting and injecting unit for extracting a part of a reagent from the reagent container and for injecting the extracted part of a reagent into the reaction container to thereby cause the specimen to react with the reagent to analyze components of the specimen, the specimen container being disposed in an area proximate to a front edge of the analyzer, the reagent container being disposed at a position rearwardly and in an oblique direction with respect to a front portion of the specimen container, the reaction container being disposed at a position which is rearwardly with respect to the front portion of the specimen container and rearwardly with respect to a front portion the reagent container, said specimen extracting and injecting unit being disposed between the specimen container and the reaction container so that a first member supporting said specimen extracting and injecting unit is disposed at a position rearwardly of the specimen container, and said reagent extracting and injecting unit being disposed between the reagent container and the reaction container so that a second member supporting said reagent extracting and injecting unit is disposed at a position rearwardly of the reagent container, a cover member which is removable for covering said specimen extracting and injecting unit and said reagent extracting and injecting unit, wherein said cover member includes at least one opening through which an arm and a nozzle of said specimen extracting and injecting unit and an arm and a nozzle of said reagent extracting and injecting unit go in and out so as to be completely covered by said cover member in one position thereof and to extend outwardly from said cover member without being completely covered by said cover member in another position thereof, a specimen container cover for covering the specimen container and having a nozzle guard groove extending along an orbit of said specimen extracting and injecting unit, and a reagent container cover for covering the reagent container and having a nozzle guard groove extending along an orbit of said reagent extracting and injecting unit.