Chapter 99-49.2.2 Protection Function9.2.2.1 Protective Functions 0006-2992The power supply PCB is equipped with an over-current/over-voltage protection mechanism to prevent damage tothe power circuit in the event of an over-current or over-voltage, as caused by a short circuit or the like on the loadside. If the over-current/over-voltage protective mechanism has gone ON, disconnect the power cord, and correct thefault; then, connect the power cord once again to reset the machine. If short circuiting and resetting are repeated, theinternal fuse (F1, F2, F101) can melt.9.2.3 Backup Battery9.2.3.1 Outline 0006-3004The machine's image processor PCB is equipped with a lithium battery (BAT1) and a vanadium lithium secondarybattery (BAT2) for back-up of the data in the SRAM and the SDARM in consideration of a power outage or whenthe power is turned off.The batteries must be replaced correctly to avoid explosion.Do not replace any battery with one not indicated for the machine, i.e., use one of the same type or equivalent.Be sure to dispose of used batteries according to local laws and regulations.9.2.3.2 Lithium Battery (BAT1) 0006-3007The data backed up in the SRAM by the lithium battery (BAT1) contains user data for fax functions, communicationscontrol data, and service mode settings.Battery life: about 5 yrThe LCD will indicate 'DATA ERROR' when the power is tuned on after the lithium battery (BAT1) has reached theend of its life. If such a condition has occurred, be sure to replace the image processor PCB according to theinstructions.If you disconnect the jumper plug (JP1) of the image processor PCB and turn off the power, all control data will bereset to default settings. Do not disconnect the jumper plug (JP1) to prevent the loss of data.MEMO:The pin of the jumper plug (JP1) is displaced on the image processor PCB available as a service part so as to prevent
