Printing apparatus with measuring circuit for diag

专利名称：Printing apparatus with measuring circuit for

diagnosis of condition of eachelectromechanical transducer

发明人：Johannes Mathieu Marie Simons,Mark

Alexander Groninger

申请号：US10020915申请日：20011219

公开号：US20020089562A1公开日：20020711

专利附图：

摘要：A printing apparatus including at least one ink duct provided with an

electromechanical transducer, a driver circuit provided with a pulse generator andoperatively associated with the transducer to energize the transducer, a measuring circuitoperatively associated with the transducer for measuring an electrical signal generatedby the transducer in response to energizing by the pulse generator, a device for breakingthe circuits in such a manner so that when the drive circuit is open, the measuring circuit isclosed, wherein measurement of the electrical signal takes place when the printingapparatus is in a printing mode.

申请人：OCE TECHNOLOGIES B.V.

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