The application relates to a printing machine for printing on planar substrates, in particular circuit boards, including: a printing table which extends in a horizontal plane and on which at least one substrate to be printed on can be arranged; at least one printing device assigned to the printing table, which printing device has a screen holder for an interchangeable printing screen and a doctor device assigned to the screen holder, wherein, by means of the doctor device, a printing material can be applied onto the substrate to be printed on through the printing screen; and a screen magazine assigned to the doctor device for storing at least one printing screen for the doctor device. According to the invention, the screen magazine has a housing with at least two drawers which are arranged in parallel to one another and are each designed to hold one printing screen, wherein the housing is pivotably arranged such that it can pivot between a first end position, in which the drawers are oriented parallel to the horizontal plane, and a second end position, in which the drawers are oriented at an angle to the horizontal plane, in particular vertical thereto.

A X-ray film packaging bag printer is disclosed. A positioning detection device is arranged above a conveyor belt, positioning holes in an X-ray film packaging bag strip are detected by the positioning detection device, and positioning can be performed by only using adjacent two positioning holes. According to the X-ray film packaging bag printer, the accuracy of the positioning detection device can be improved, the parameter conflict with a set length of a machine can be avoided, that is, the problem of shutdown or hop printing caused by a detection error are effectively avoided; the printing stability and reliability of the X-ray film packaging bag printer are improved; the structure is simple; a printing process is integrated; the automation efficiency is high; the manual operation is reduced; the production efficiency is greatly improved; the production cost is low; the user experience is improved.

A X-ray film packaging bag printer is disclosed. A positioning detection device is arranged above a conveyor belt, positioning holes in an X-ray film packaging bag strip are detected by the positioning detection device, and positioning can be performed by only using adjacent two positioning holes. According to the X-ray film packaging bag printer, the accuracy of the positioning detection device can be improved, the parameter conflict with a set length of a machine can be avoided, that is, the problem of shutdown or hop printing caused by a detection error are effectively avoided; the printing stability and reliability of the X-ray film packaging bag printer are improved; the structure is simple; a printing process is integrated; the automation efficiency is high; the manual operation is reduced; the production efficiency is greatly improved; the production cost is low; the user experience is improved.

A printing machine for printing on planar substrates, in particular circuit boards. The printing machine includes a printing table which extends in a horizontal plane and on which at least one substrate to be printed on can be arranged and at least one printing device assigned to the printing table. The printing device has a screen holder for an interchangeable printing screen and a doctor device assigned to the screen holder, wherein, by means of the doctor device, a printing material can be applied onto the substrate to be printed on through the printing screen. A screen magazine is assigned to the doctor device for storing at least one printing screen for the doctor device.

A method of manufacturing a heating device includes preparing a substrate having a curved surface; and forming a heating body on the substrate, the heating body generating heat with a supply of electric current. The forming of the heating body includes pressing a screen toward the substrate with an aid of a pressing member while rotating the substrate and moving the screen, and transferring application liquid that is to form the heating body to the substrate through the screen. In the forming of the heating body, the pressing member is in contact with the screen at a position on an upstream side with respect to a transfer position in a direction of movement of the screen.

A method of manufacturing a heating device includes preparing a substrate having a curved surface; and forming a heating body on the substrate, the heating body generating heat with a supply of electric current. The forming of the heating body includes pressing a screen toward the substrate with an aid of a pressing member while rotating the substrate and moving the screen, and transferring application liquid that is to form the heating body to the substrate through the screen. In the forming of the heating body, the pressing member is in contact with the screen at a position on an upstream side with respect to a transfer position in a direction of movement of the screen.