Self-diagnosis and self-repair system for image forming apparatu

Details Self-diagnosis and self-repair system for image forming apparatu Self-diagnosis and self-repair system for image forming apparatu

1990-09-26

1993-08-24

Beausoliel, Jr., Robert W.

Excavating

371 291, 371 151, 395911, 395912, 395916, 355207, 364DIG1, 3642763, 3642819, G06F 1100

Patent

active

052395472

ABSTRACT:
The system of the present invention has a plurality of sensors 1a, 1b and 1c and a system control circuit which includes a case memory portion and a work script memory portion. In response to application of state data from the sensors 1a, 1b and 1c, the system converts the state data into symbolic data. Then the symbolic data is evaluated to judge whether or not a fault exists and to specify a fault symptom. As a result of the judgement, a fault symptom and a fault in the objective machine are determined. Thereafter, cases stored in the case memory portion are retrieved on the basis of the results of the fault diagnosis and a fault simulation. A case which closely resembles the present state of the objective machine is selected. Then, repair work described in the selected case is executed.

REFERENCES:
patent: 4245309 (1981-01-01), Kiefer
patent: 4277162 (1981-07-01), Kasahara et al.
patent: 4755966 (1988-07-01), Masuda
patent: 4809280 (1989-02-01), Shonaka
patent: 4878072 (1989-10-01), Reinten
patent: 4879577 (1989-11-01), Mabrouk et al.
patent: 5107500 (1992-04-01), Wakamoto et al.
patent: 5109380 (1992-04-01), Ogino
patent: 5138618 (1992-08-01), Honda et al.
Patent Abstracts of Japan, vol. 11, No. 219 (P-596) Jul. 16, 1987 & JP-A-62 035 916 (Canon).
Patent Abstracts of Japan, vol. 13, No. 007 (P-810) Jan. 10, 1989 & JP-A-63 214 679 (NEC).
Patent Abstracts of Japan, vol. 14, No. 160 (P-1028) Jan. 19, 1990 & JP-A-02 016 639 (NEC).
Tzafestas et al, "Modern Approaches to System/Sensor Fault Detection and Diagnosis", Journal A, vol. 31, No. 4, Antwerpen, BE, pp. 42-57, XP000178689 (Dec. 1990).
Umeda et al, "Model Based Diagnosis Using Qualitative Reasoning", as reprinted in Kimura and Rotstadas, editors, Computer Applications in Production and Engineering, Cape 1989, Tokyo, Japan, pp. 443-450 (Oct. 2-5, 1989).
Benjamin Kuipers, "Qualitative Simulation", Artificial Intelligence, 29, pp. 289-338 (1986).
Jeff Shrager, et al, "Issues in the Pragmatics of Qualitative Modeling: Lessons Learned from a Xerographics Project", Communications of the ACM, vol. 30, No. 12, pp. 1036-1047 (Dec. 1987).
Nishida, an article made available to the public on Jul. 23, 1990 at a meeting of the Artificial Intelligence Society in Japan; and an English translation of sections 10.2 and 10.3 of the Nishida article.

Affiliated with

Also associated with

Rating

Self-diagnosis and self-repair system for image forming apparatu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-diagnosis and self-repair system for image forming apparatu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-diagnosis and self-repair system for image forming apparatu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-834640