(19)
(11) EP 0 028 167 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.10.1981 Bulletin 1981/40

(43) Date of publication A2:
06.05.1981 Bulletin 1981/18

(21) Application number: 80303879

(22) Date of filing: 30.10.1980
(84) Designated Contracting States:
DE FR GB

(30) Priority: 30.10.1979 US 89430

(71) Applicant: XEROX CORPORATION
 ()

(72) Inventors:
  • Daughton, John W.
     ()
  • Buchalter, Neal S.
     ()
  • Bohacek, Thomas M.
     ()
  • Federico, Anthony M.
     ()

   


(54) Method of indicating the cause of a malfunction in a reproduction machine


(57) 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.






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