Abstract: In a printing system or method, two printing units apply printing ink onto a recording material, each printing unit having multiple apparatuses with a respective microprocessor controller. The microprocessor controllers are connected with one another via a respective data bus segment and each data bus segment has multiple data lines. The two data bus segments of the two printing units are connected with a bus switch. The bus switch has a data switch to connect a respective one of the lines of the one data bus segment with the corresponding line of the other data bus segment, a respective terminating resistor being provided for each data bus segment. The terminating resistors are connected with a respective terminating switch coupled with the data switches such that either all terminating switches are open and all data switches are closed, or all terminating switches are closed and all data switches are open.

Abstract: For operation of a data bus to which multiple bus participants each with a respective serial number are connected, a new bus participant is connected. A request bus message is generated by the new bus participant containing a preliminary participant identification number. The request bus message is arbitrated in the data bus by means of the identification number. A final participant identification number is assigned for the new bus participant having fewer digits than the serial number of the new participant. The final participant identification number is used for further bus messages by the new bus participant. During an initialization bus messages are used with an identifier in which a complete serial number is entered as the identifier. After the initialization a different type of bus message is used that has a shorter identifier.

Abstract: For operation of a data bus to which multiple bus participants each with a respective serial number are connected, a new bus participant is connected. A request bus message is generated by the new bus participant containing a preliminary participant identification number. The request bus message is arbitrated in the data bus by means of the identification number. A final participant identification number is assigned for the new bus participant having fewer digits than the serial number of the new participant. The final participant identification number is used for further bus messages by the new bus participant. During an initialization bus messages are used with an identifier in which a complete serial number is entered as the identifier. After the initialization a different type of bus message is used that has a shorter identifier.

Abstract: In a method or system for operation of a data bus to which multiple bus participants each with a respective serial number specific to them are connected, a new bus participant is connected to the data bus. A request bus message is generated by the new bus participant, the message containing a preliminary participant identification number as an identifier derived from a serial number of the new bus participant. The request bus message is sent to a master processor system for assigning a final participant identification number for the new bus participant after a receipt of the request bus message with the preliminary participant identification number. The final participant identification number has fewer digits than the serial number of the new bus participant. The final participant identification number is used by the new bus participant as an identifier for further bus messages.

Abstract: In a printing system or method, two printing units apply printing ink onto a recording material, each printing unit having multiple apparatuses with a respective microprocessor controller. The microprocessor controllers are connected with one another via a respective data bus segment and each data bus segment has multiple data lines. The two data bus segments of the two printing units are connected with a bus switch. The bus switch has a data switch to connect a respective one of the lines of the one data bus segment with the corresponding line of the other data bus segment, a respective terminating resistor being provided for each data bus segment. The terminating resistors are connected with a respective terminating switch coupled with the data switches such that either all terminating switches are open and all data switches are closed, or all terminating switches are closed and all data switches are open.

Abstract: In a method or system for operation of a data bus to which multiple bus participants each with a respective serial number specific to them are connected, a new bus participant is connected to the data bus. A request bus message is generated by the new bus participant, the message containing a preliminary participant identification number as an identifier derived from a serial number of the new bus participant. The request bus message is sent to a master processor system for assigning a final participant identification number for the new bus participant after a receipt of the request bus message with the preliminary participant identification number. The final participant identification number has fewer digits than the serial number of the new bus participant. The final participant identification number is used by the new bus participant as an identifier for further bus messages.

Abstract: A method and device controls a printer or copier to generate a plurality of marks that are assembled into a coherent marking band that is then inked by the toner. A sensor measures the marking band. The printer or copier are controlled based on the output of the sensor.

Abstract: A method and device controls a printer or copier to generate a plurality of marks that are assembled into a coherent marking band that is then inked by the toner. A sensor measures the marking band. The printer or copier are controlled based on the output of the sensor.

Abstract: In a printing or copying device which has one or several exchangeable part units with a modular assembly, the part unit to be identified has an identification device with a non-volatile memory for storing function-relevant operating data of the part unit, said operating data being allocated to operating states. The part unit also has a communication interface for detachably connecting the identification device to a process control device of the printing or copying device.