A printing machine comprising one or more treatment stations, including at least one printing station and a device for transporting substrates in said printing machine along a transport path from at least one input area supplying the printable and/or printed substrates up to at least one output area receiving the treated substrates, comprising a substrate conveyor for guiding and moving the substrates through the treatment stations, said conveyor comprising a. a fixed rail, which forms a transport loop; and b. carriages, which hold the substrates in a stationary position and which move on said rail carrying the substrates along the transport loop; and characterised in that 1. the substrate-transport device comprises a base on which at least a part of the rail is fastened, and whose surface is preferably plane, 2. the substrate-transport device comprises a drive system for moving the carriage on the fixed rail, 3. the carriage comprises a table for holding the substrate in a stationary position relative to the table along the transport loop during the treatment(s) of the substrate and in that the drive system is a linear drive system based on the principle of electromagnetic interaction between a coil assembly (primary assembly) and a path of permanent magnets (secondary assembly), and that the primary drive assembly of the linear drive is part of the mobile carriage, and the secondary assembly consists of a path of magnets (magnetic path), said path being fastened on the fixed rail, and/or being an integral part thereof, and/or fastened on the base and/or forming an integral part of the base and/or fastened on a rigid structure for holding the rail, and/or forming an integral part of this rigid structure, in that the base consists of marble and/or granite and/or granit and/or cast iron and/or basalt and/or porphyry and/or serpentinite and/or gneiss and/or sandstones and/or gaps and/or limestones and/or composite stones and/or ceramics and/or technical ceramics and in that a recessed rigid structure is used for fastening the rail outside printing stations and/or drying stations and/or any other substrate treatment station. a. a fixed rail, which forms a transport loop; and b. carriages, which hold the substrates in a stationary position and which move on said rail carrying the substrates along the transport loop; and characterised in that 1. the substrate-transport device comprises a base on which at least a part of the rail is fastened, and whose surface is preferably plane, 2. the substrate-transport device comprises a drive system for moving the carriage on the fixed rail, 3. the carriage comprises a table for holding the substrate in a stationary position relative to the table along the transport loop during the treatment(s) of the substrate and in that the drive system is a linear drive system based on the principle of electromagnetic interaction between a coil assembly (primary assembly) and a path of permanent magnets (secondary assembly), and that the primary drive assembly of the linear drive is part of the mobile carriage, and the secondary assembly consists of a path of magnets (magnetic path), said path being fastened on the fixed rail, and/or being an integral part thereof, and/or fastened on the base and/or forming an integral part of the base and/or fastened on a rigid structure for holding the rail, and/or forming an integral part of this rigid structure, in that the base consists of marble and/or granite and/or granit and/or cast iron and/or basalt and/or porphyry and/or serpentinite and/or gneiss and/or sandstones and/or gaps and/or limestones and/or composite stones and/or ceramics and/or technical ceramics and in that a recessed rigid structure is used for fastening the rail outside printing stations and/or drying stations and/or any other substrate treatment station. 1. the substrate-transport device comprises a base on which at least a part of the rail is fastened, and whose surface is preferably plane, 2. the substrate-transport device comprises a drive system for moving the carriage on the fixed rail, 3. the carriage comprises a table for holding the substrate in a stationary position relative to the table along the transport loop during the treatment(s) of the substrate and in that the drive system is a linear drive system based on the principle of electromagnetic interaction between a coil assembly (primary assembly) and a path of permanent magnets (secondary assembly), and that the primary drive assembly of the linear drive is part of the mobile carriage, and the secondary assembly consists of a path of magnets (magnetic path), said path being fastened on the fixed rail, and/or being an integral part thereof, and/or fastened on the base and/or forming an integral part of the base and/or fastened on a rigid structure for holding the rail, and/or forming an integral part of this rigid structure, in that the base consists of marble and/or granite and/or granit and/or cast iron and/or basalt and/or porphyry and/or serpentinite and/or gneiss and/or sandstones and/or gaps and/or limestones and/or composite stones and/or ceramics and/or technical ceramics and in that a recessed rigid structure is used for fastening the rail outside printing stations and/or drying stations and/or any other substrate treatment station.