Patent ID: 7699084

Claim:
A system for fabricating a corrugated board sheet comprising: running-state information obtaining means ( 5 D) for obtaining running state information concerning a running state of a corrugated-board fabrication machine ( 1 ); production-state information obtaining means ( 4 D) for obtaining production state information concerning a production state in the corrugation-board fabrication machine ( 1 ); control variable calculating means ( 4 D) for calculating a control variable of each of control factors used to control the corrugation-board fabrication machine ( 1 ) based on the running state information obtained by said running-state obtaining means ( 5 D) and the production state information obtained by said production-state information obtaining means ( 4 D); quality information detecting means ( 5 Db) for detecting that the corrugated board sheet fabricated by the corrugated-board fabrication machine ( 1 ) satisfies a predetermined quality; optimum running-condition information retaining means ( 5 Da) for retaining, if said quality information detecting means detects that the corrugated board sheet satisfies the predetermined quality, a portion of the running state information obtained by said running-state information obtaining means ( 5 D) which portion is associated with a particular control factor that affects the predetermined quality, so that the portion of the running-state information serves as optimum running-condition information concerning an optimum running condition of the corrugated-board fabrication machine when said quality information detecting means detects that the corrugated board sheet satisfies the predetermined quality; and control means ( 5 D) for preferentially controlling, if the optimum running condition information retained in said optimum running-condition information retaining means ( 5 Da) is corresponding to a current production state, the particular control factor so as to become in the optimum running condition.