Abstract: A system for conveying diagnostic data from a machine, such as a digital copier or printer, to a remote specialist allows simultaneous transfer of diagnostic data and live voice data through the same communication channel. A distinct sequence of steps between the computer in the machine and the specialist's computer minimizes the chance of time-wasting errors in establishing communication.

Abstract: A method of providing machine usage data to a computer for a given user by setting the machine for transmission of the machine usage data to the computer and transmitting the machine usage data to the computer for various levels of usage. The computer converts the machine usage data into a format compatible for the given user, for example, converting to a generic ASCII type file format or to an MS Excel format.

Abstract: To facilitate servicing of xerographic type reproduction machines or printers, diagnostic routines are used (1) to operate the machine in a predetermined copy run while recording the clock count on a global counter on the arrival of a copy sheet at a first selected jam station in the paper path and the count on arrival of the same copy sheet at the next jam station, and then display the clock difference on the machine display console for comparison by the Tech Rep with a master clock count; (2) to operate the machine in a preset copy run while fetching the current timing parameter of a machine subassembly from memory, displaying the timing parameter to the Tech Rep on the machine display console, and permitting the Tech Rep to use the machine control panel keyboard to reset the timing parameter while watching the effect of the timing change on the copies as they are produced; and (3) to delay the arrival of the copy sheet at the machine image transfer station so that the normally unprinted interdocument area