METHOD FOR TESTING FOR FAULTS IN AN INK LINE CIRCUIT FOR AN INK JET PRINTER

摘要

An inventive method is a method for checking a line for ink of an ink printing machine to a fault, wherein a pump (9) for the ink is controlled such that the pump generates a pressure pulse (24) in the ink, the pressure pulse through the line ( 7) and interference-dependent, the influenced pressure pulse (25) reaches a pressure sensor (17, 18) spaced from the pump, the pressure sensor generates a measurement result (26, D, E) dependent on the influenced pressure pulse and sends this to a computer (20) and the computer evaluates the measurement result (F) and thereby determines the presence of the fault or the presence and type of fault. The invention makes it possible to check or detect malfunctions of a line for ink of an ink printing machine and, in particular, to build up any overpressure in the line - causing further disturbances.