*1: Before replacement of the logic board ass'y, check the waste ink amount (by service test print orEEPROM information print). If the waste ink amount is 7% or more, also replace the ink absorber kit(QY5-0152) when replacing the logic board ass'y.[See Section 3-3. Adjustment / Settings, (5) Service mode, for details.]2-3. WarningsPrinter (no LED indications):*1: If the warning is displayed, the carriage does not move to the ink tank replacement position when theaccess cover is opened.2-4. Troubleshooting by Symptom[6500]ContinuousalternateblinkingROM error - Logic board ass'y (QM2-2733) *1Alarm LED lit RAM error - Logic board ass'y (QM2-2733) *1Displayed warning RemarksLow ink - Status monitor indication.- The ink tank lamp flashes slowly (at about a second interval).Print head temperature rise If the print head temperature is high when the access cover isopened, the warning is displayed *1 .When the print head temperature falls, the warning is released.Protection of excess rise of the printhead temperatureIf the print head temperature exceeds the specified limit, a Waitis inserted during printing,Symptom Solution RemarksFaulty operationThe power does not turn on.The power turns offimmediately after power-on.Replace the- AC adapter, or- logic board ass'y *1 .A strange noise occurs. Remove foreign material, or attach aremoved part if any.Printing stops mid-way. Replace the logic board ass'y *1 .Paper feedproblemsMultiple sheets feed. Replace the- sheet feed unit, or- cassette.Paper does not feed. Remove foreign material, or replacethe- sheet feed unit, or- cassette.Paper feeds at an angle. Remove foreign material, adjust thepaper guide, or replace the1-9