| 摘要 |
The invention relates to a printing machine (01), which has a printing unit (200), which has a printing-material conducting element (201) that can be rotated about an axis of rotation defining an axial direction and at least four printing heads (212), wherein four positioning devices (217, 218, 219, 221) are arranged, by means of each of which at least one printing head can be arranged at least either in a respective printing position associated with the printing head or in a respective idle position associated with the printing head and wherein at least one first printing head of the printing heads can be arranged either in a first printing position associated with the first printing head or in a first idle position associated with the first printing head and wherein at least one second printing head of the printing heads can be arranged at least either in a second printing position associated with the second printing head or in a second idle position associated with the second printing head and wherein the respective idle position is designed as a respective maintenance position, in which a maintenance device designed as a cleaning device (222) is and/or can be associated with at least one nozzle of the respective printing head (212) and wherein the maintenance device is arranged in such a way that the maintenance device can be moved along a provision path at least partially orthogonally to the axial direction (A). |
