Xerox Corporation

James R Reno

Robert S Hamilton

James M Rego

Karen L Dahlby

Brad D Peloquin

Patricia A Hannaway

There is provided a printing system with a first service and a second service. The first service and the second service are controlled by a system controller, and are activated selectively by the system controller in a first mode. The printing system includes a diagnostic subsystem including a first diagnostic routine for performing a diagnostic function relative to the first service and a second diagnostic routine for performing a diagnostic function relative to the second service. The printing system further includes a diagnostic system controller that communicates with the system controller and is activated selectively by the system controller in a second mode. The first diagnostic routine and the second diagnostic routine are activated, for concurrent operation thereof, when the diagnostic system controller determines that a preselected condition has been met.

Apparatus and method for controlling diagnostic routines concurrently in

A process for enhancing detection and correction of faults when servicing copying and printing systems by allowing a service technician to run customer type jobs as test jobs, but with the job program selections that the technician is allowed to make restricted, the test job deleted when no longer needed by the technician, and billing for any prints made by the technician to a customer's account inhibited.

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Walworth, NY, United States of America

James R Reno