2KZ/2K01-4-100150 Backup memory read/writeerror (engine PWB)Detecting engine PWBEEPROM communicationerror.The engine PWBEEPROM wasimproperlyinstalled.Check the EEPROM is properly installedand remedy if necessary.Defective enginePWB.Replace the engine PWB and check for cor-rect operation (see page 1-5-31).DefectiveEEPROM.Contact the Service Administrative Division.0160 Backup memory data error(engine PWB)Defective flashmemory.Replace the engine PWB and check for cor-rect operation (see page 1-5-31).Defective enginePWB.0170 Billing counting errorA checksum error is detectedin the main and enginebackup memories for the bill-ing counters.Data in theEEPROM .Contact the Service Administrative Division.Defective PWB. Replace the main PWB or the engine PWBand check for correct operation(see page 1-5-30, 1-5-31).0180 Machine number mismatchMachine number of main andengine does not match.Data in theEEPROM .Contact the Service Administrative Division.0320 I/O CPU communicationerrorA communication error isdetected 10 times in succes-sion.Defective PWB. Replace the main PWB or the engine PWBand check for correct operation.(see page 1-5-30,1-5-31)0800 Image processing errorThe JAM100 fee counter iscontinuously generated.Defective mainPWB.Replace the main PWB and check for cor-rect operation (see page 1-5-30).0830 FAX control PWB flash pro-gram area checksum errorA checksum error occurredwith the program of the FAXcontrol PWB.Defective FAX soft-ware.Install the fax software.Defective FAX con-trol PWB.Replace the FAX control PWB.0840 Faults of RTCThe time is judged to go backbased on the comparison ofthe RTC time and the currenttime or five years or morehave passed.The battery is dis-connected from themain PWB.Check visually and remedy if necessaryDefective mainPWB.Replace the main PWB and check for cor-rect operation (see page 1-5-30).Code Contents Causes Check procedures/corrective measuresService Manual Y113010-4