Jam history and diagnostics

摘要

A technique of storing and displaying machine fault information including the number of actual machine faults and the number of machine almost faults in a reproduction machine having a plurality of components and an operator console with a display screen including the steps of entering a fault history display mode at the operator console to display machine fault histories, the fault histories including the number of actual faults and the number of almost faults of selected components, computing the rate of failure of selected components based on the number of actual failures and the number of almost failures relative to the number of opportunities to fail of said components, and displaying the computed rate of failure for the selected components on the display screen.