Oki Data CONFIDENTIAL43605601TH Rev. 1 211 /Figure 7.37.5.3.(7) Solid Black Print(7-1) Solid black on a full pageGroundCharge rollerDevelopment rollerConfirmation Items Confirmation Tasks Action at NG(7-1-1) High-voltage contact conditionCH terminal By visual inspection, look down to check whetherhigh-voltage terminal of left side of ID unit thatprotrudes from the equipment is normal.Replace theterminal ofequipment side witha new one.CH terminal Check whether the high-voltage terminal of high-voltage board is in normal contact state. Open theleft cover and remove the high-voltage board, checkwhether terminal is installed abnormally.Reinstall theterminal normally.ID unit terminal By visual inspection, check whether the high-voltageterminals of ID unit are normally contacted withcontacting ASSY. (Please refer to Figure 7.3)Replace the ID unitor correct the high-voltage terminals.When trying touse a new ID unit,please be carefulnot to break thefuse with jig insidethe ID unit. (Pleaserefer to page 132)(7-1-2) High-voltage output conditionCH output When high-voltage probe is used as maintenancetool, please open the left cover and check the CHoutput from solder side of high-voltage board by high-voltage probe during printing.(High-voltage probe isnot a usual maintenance tool.)Replace the high-voltage board with anew one.
