Patent ID: 8325373

Claim:
A printing system, comprising: at least two printing units to apply printing ink onto a recording material, wherein each printing unit has multiple apparatuses with a respective microprocessor controller; the microprocessor controllers of the respective printing units being connected with one another via a respective data bus segment and wherein each data bus segment has multiple data lines; the at least two data bus segments of the two printing units are connected with a bus switch, the bus switch for each data line respectively having 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, and a respective terminating resistor for each data bus segment; and the terminating resistors being connected in series with a respective terminating switch, the terminating switches being 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.