Oki Data CONFIDENTIAL43605601TH Rev. 1 199 /7.5.2.(11) Print Speed is Slow (Low Performance)(11-1) The print speed will fall to about 2ppm after the continuous print started for about ten minutes.(11-2) The print speed slowed down7.5.2.(12) LED head is not recognized(Error 131,132,133,134)(12-1) Service Call 131-134(LED HEAD Missing)Confirmation Items Confirmation Tasks Action at NG(11-1-1) Ambient temperatureThe ambient temperatureof the set position ofprinterIs the printer set in narrow position that will result inabnormal high ambient temperature and low coolingeffect taken from fan?Adjust theinstallationenvironment. (Becareful to checkwhether the airduct and exhaust offan is plugged.)Confirmation Items Confirmation Tasks Action at NG(11-2-1) Media Wight settingSpecified Media Weightwhen printing.Check whether the specified Media Weight is correct. Correct the MediaWeight.Confirmation Items Confirmation Tasks Action at NG(12-1-1) Check the connectionConnection of main boardconnector and headconnectorBy visual inspection, check the FFC connection. Connect normally.Head FFC Remove the head FFC from equipment, and checkwhether the wire-break and peeling off of coatingoccurred.Replace head FFCor main board with anew one.Fuse conduction on themain board.Check that F5 fuse isn’t broken.Check the voltagebetween two terminals of capacitor CP13 is 5V.(Please refer to chapter 7.6.)Replace the F5 ormain board with anew one.