A sheet-fed printing machine (01), the sheet-fed printing machine (01) comprising at least one sheet-fed printing unit (200) designed as a sheet simultaneous printing unit (200), which comprises a first collect cylinder (201) and a second collect cylinder (202), which are arranged so as to directly cooperate with one another and which each have an axis of rotation (216;
- 217);
- and an axial plane (E1) being a plane (E1) that includes both the axis of rotation (216) of the first collect cylinder (201) and the axis of rotation (217) of the second collect cylinder (202);
- and
- a reference plane (E2) being a plane (E2) that includes at least one axis of rotation (216;
- 217) of one of these collect cylinders (201;
- 202) and has a horizontal surface normal;
- and these two collect cylinders (201;
- 202) being arranged in such a way that the angle of intersection between the axial plane (E1) on the one hand and the reference plane (E2) on the other hand being no more than 45°;
- and the sheet-fed printing machine (01) comprising at least one simultaneous printing inspection device (31), arranged downstream from the at least one sheet simultaneous printing unit (200), for inspecting printed sheets (02), and a transport direction (T) being defined at every point along a transport path (09) provided for a transport of sheets (02) and a transverse direction (A) being a horizontal direction (A) that is orthogonal with respect to the transport direction (T) at every point of the transport path (09) provided for the transport of sheets (02);
- and the sheet-fed printing machine (01) comprising at least one sheet transport means (39), which is assigned to the simultaneous printing inspection device (31) and which defines a section (38) of the transport path (09) provided for a transport of sheets (02);
- and this section (38) comprising an inspection region (37) of the simultaneous printing inspection device (31);
- and the simultaneous printing inspection device (31) comprising at least one sensor device (32), which in a simultaneous inspection position is arranged so as to be aligned with the inspection region (37) of the simultaneous printing inspection device (31), characterized in that the sheet-fed printing machine (01) has a maximum working width of at least 50 cm, and that the at least one sensor device (32) of the simultaneous printing inspection device (31) has a detection width which is at least 80% of the maximum working width, and that at least one guide device (33) of the at least one sensor device (32) of the simultaneous printing inspection device (31) is provided, which defines a sensor adjustment path that is provided for a movement of the at least one sensor device (32) of the simultaneous printing inspection device (31) and that extends from the simultaneous inspection position at least to a backed-away position of the sensor device (32) of the simultaneous printing inspection device (31) which is designed as a maintenance position, and that the sensor adjustment path extends linearly and parallel to the transverse direction (A), at least between the simultaneous inspection position and the backed-away position of the sensor device (32) of the simultaneous printing inspection device (31) which is designed as a maintenance position.