The power supply PCB is equipped with a leakage current breaker (BK), a fuse onits AC power input side, and an overcurrent protection circuit in its DC circuit.If an overcurrent flows because of a short circuit in the line or the like, the protectioncircuit turns on to turn off the output of the power supply unit. In such a case, disconnectthe copier's power plug, and remove the cause of activation before turning on the power.The protection circuit may be reset by keeping the AC power supply of the powersupply unit off for about 30 sec before turning on the AC power supply.‘E214’ will be indicated on the control panel if the scanner motor cooling fan (FM9)does not send the scanner motor cooling fan rotation detection signal (FM9ROT) to theDC controller PCB for 2 sec or more.If an overcurrent flows in the output of the power supply unit, the protection circuitwill normally turn on before the AC input fuse melts. Keep in mind that repeatedlyturning on and off the AC power supply of the power supply unit with a short circuitin the output of the power supply unit can melt the fuse of the AC input.C. Date/Time Display Power SupplyThe DC controller PCB is equipped with a lithium battery to back up the data whenthe power plug is disconnected.The lithium battery is designed to last for about five years with the power plug dis-connected.The date/time indication stops when its life ends, and the indication starts once againwhen the power plug is connected.The lithium battery cannot be re-charged, requiring replacement (available as a ser-vice part, which will last for five years starting at the point of use—it will not dischargeunless connected by its terminals).Keep in mid that the back-up data will be lost when the battery comes to the end ofits life—enter the appropriate data after replacement.Replace the lithium battery only with the one listed in the Parts Catalog.Use of another battery may present a risk of fire or explosion.The battery may present a fire or chemical burn hazard if mistreated.Do not recharge, disassemble or dispose of it in fire. Keep the battery out of reachof children and discard any used battery promptly.CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS7-12 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)Caution:Caution:!
