Oki Data CONFIDENTIAL44871001TH Rev.6 6-176. MAINTENANCE MENUS6.4.2.3 Switch scan testThis self-diagnostic menu is used to check the entry sensor and the switch.1. Enter the self-diagnostic mode (level 1), press the [2] or [8] key repeatedly ,andpress the [6] key when the "SWITCH SCAN" is displayed in the upper row of thedisplay area. (Pressing the [2] key increments the test item and pressing the [8]key decrements the test item.)SWITCH SCAN2. Press either the [2] or [8] key until the desired menu item corresponding to the unitto be tested in Table 4-3 is displayed in the lower row of the display area. (Pressingthe [2] key increments the test item and pressing the [8] key decrements the testitem.)3. Pressing the [6] key starts the test. Name and present status of the correspondingunit are displayed.PAPER ROTE:PU1=H 2=L 3=H 4=LActivate the respective units. (Figure 4-1) Status of the respective units aredisplayed on the corresponding areas of the LCD display. (Display changesdepending on each sensor. Refer to Table 4-3 for details.)4. Press the [#] key to return to the status of step 2.5. Repeat steps 2 to 4 as required.6. Press the [4] key to exit the test. (Returns to the status of step 1.)Paper level indicator leverDriven rollerDriving roller (Continuous rotation)Driving roller (Control rotation)Paper conveying routeIndicating leverPhoto sensorMicro switchMagnetic clutchMicro switchFrontBackFace up stackerEject Assy opening-closing sensor2nd Hopping sensor2nd Entrance sensorFace up stackeropening-closing sensorPaper end SensorStacker Coveropening-closing sensorPaper end / Cassettepresence - absence sensorCassette presence- absence sensorEjectingsensor leverMultipurpose trayTray 1Tray 2 (option)Entrancesensor leverWriting outsensor leverFace down stackerThe sectional view of only printer