EP0028167A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of indicating the cause of a malfunction in a reproduction machine
Assignee: Xerox Corp
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Filing: 1980-10-30
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Granted: —
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Expires: 2000-10-30
Abstract
Abstract The system displays (70) an appropriate two digit fault code if a predetermined push button (132) on the operator keyboard is pressed while a status code is displayed. When the push button is released, the display (70) returns to the status code. The fault codes identify sources of malfunctions rather than status code remedies for efficient fault diagnosis and correction.
Inventors
- 👤 John W. Daughton
- 👤 Neal S. Buchalter
- 👤 Thomas M. Bohacek
- 👤 Anthony M. Federico
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 20:31
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/55; G03G15/50; G03G15/5016; G03G15/502
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
64 words
A method of indicating the cause of a malfunction in a reproduction machine characterised by: identifying the particular malfunction by a fault code; storing the fault code in a temporary register; determining if the fault code is the first fault; storing the fault code in a random access memory location; accessing the contents of the memory location; and displaying an indication of the fault.
Claim 2
Independent Claim
64 words
A method of indicating the cause of a malfunction in a reproduction machine characterised by: identifying the particular malfunction by a fault code; storing the fault code in a temporary register; determining if the fault code is the first fault; storing the fault code in a random access memory location; accessing the contents of the memory location; and displaying an indication of the fault.
Claim 3
Dependent Claim
29 words
The method of claim 1 wherein the step of identifying the fault code includes the "step of scanning a table of faults to determine the fault having highest priority.
Claim 4
Dependent Claim
48 words
The method of claim 1 wherein there are a plurality of machine malfunction possibilities, each possibility being associated with at least one memory location wherein the step of displaying the malfunction includes the step of displaying a manifestation associated with the contents of one of said memory locations.
Claim 5
Independent Claim
78 words
A method of indicating the cause of a malfunction in a reproduction machine having a controller characterised by: recognising the machine malfunction; identifying the machine malfunction by means of a code related to the machine malfunction; identifying other fault codes related to machine malfunctions; identifying the first occurrence of a machine malfunction; storing the code representing the first occurrence of a machine malfunction in a memory location, and displaying a manifestation of the first occurrence code upon request.
Claim 6
Independent Claim
78 words
A method of indicating the cause of a malfunction in a reproduction machine having a controller characterised by: recognising the machine malfunction; identifying the machine malfunction by means of a code related to the machine malfunction; identifying other fault codes related to machine malfunctions; identifying the first occurrence of a machine malfunction; storing the code representing the first occurrence of a machine malfunction in a memory location, and displaying a manifestation of the first occurrence code upon request.
Claim 7
Dependent Claim
62 words
The method of claim 4 including displaying status codes, each status code being associated with at least one of the fault codes, the status codes indicating a corrective action related to the machine malfunction, and each fault code indicating the source of the machine malfunction, the method including the steps of first displaying a status code and then displaying a fault code.
Claim 8
Dependent Claim
27 words
The method of claim 5 wherein the step of displaying the fault code includes the step of activating a fault code request during a status code display.
Claim 9
Dependent Claim
14 words
The method of claim 6 including the step of activating an unlabelled push button.
References Cited (Backward Citations)
No citation records indexed.
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