41955801TH Rev.8 75 /Oki Data CONFIDENTIAL3.1.2 Engine maintenance modeThree modes from Level 1 to Level 3 are in the engine maintenance mode. Level 1 is a mode thatchecks the media transport and basic movement of the print system. Level 2 checks the counterfor consumables and tests the correcting function of color displacement, and is a mode that doesnot require special knowledge. Level 3, on the other hand, requires special knowledge for handlingthe process parameter setting and is contained in the independent experimental element of PU.Basically, levels other than Level 1 should not be used.3.1.2.1 Operator panelThe description for operations related to self-diagnosis is made presuming the arrangement of theoperator panel shown below.0 1 2 34 5 6 73.1.2.2 Normal self-diagnostic mode (Level 1)Items in the normal self-diagnostic mode menu are listed below.• Switch scan test• Motor & clutch test• Executing test pattern• NVM initialization• Consumables counter display• Consumables continuation counter display0 1 2 34 5 6 7
