Canon S520 Service Manual
Also see for S 820: Paper guideUser guideSetup instructionsService manualQuick start guide
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Contents
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2.3 Troubleshooting Problems2-9S900 / S820 / S750 / S520 Part 2: Troubleshooting TroubleshootingProbable Cause / Check Items1. AC adapter, 2. Logic board1. Print head, 2. Print headcontacts, 3. Carriage flex cable1. Dislodged parts, 2. Dislodgedpinch roller1. Logic board1. ASF (Return tab, faultypressure roller operation)1. Foreign matter, 3. PE sensorarm1. Paper guide, 2. Foreign matteradhering to paper feed rollers1. Print head, 2. Ink tanks, 3.Purge unit1. Print head, 2. Ink tanks, 3.Purge unit, 4. Print headcontacts, 5. Carriage flex cable1. Ink mist from the papertransport section in the printer,2. The ink absorber (platen) isdirty.1. Deformed spur tips.1. Ink tanks.1. Print head.1. Platen unit (eject roller)1. Ink tank.1. Timing slit strip.Solution1. Replace faulty parts.1. Remove and reinstallprint head / check thecontacts, 2. Replace faultyparts.1. Remove foreign matter,2. Reinstall dislodgedparts1. Replace faulty parts.1. Replace faulty parts.1. Remove foreign matter,2. Replace faulty parts, 3.Replace ASF unit1. Adjust the paper guideto the correct position, 2.Remove foreign matter.1. Replace faulty parts.1. Remove and reinstallprint head / check thecontacts, 2. Replace faultyparts.1. Feed through severalsheets of clean paper, 2.Replace the ink absorber(platen), 3. Purge unit.1. Replace faulty parts.1. Replace ink tanks.1. Replace faulty parts.1. Replace faulty parts.1. Perform DeepCleaning (3 times)1. Clean grease fromtiming slit strip,2. Replace the carriageboard.ProblemPower does not turn on.After power ON, itimmediately turns offagain.The print head is notrecognized. It does notreturn to the homeposition.Abnormal noisePrinting stops midway.Multiple sheets are fedat a time.Paper is not fed.Paper is fed skewed.No printing.No color.Scrape marks or whitestripes appear even aftercleaning.Lines not in the printingdata appear.The paper is stained.Spur marks appear.Lines are missing.Inappropriate color tones.Overlapping printing.No black.Images / text appearsstretched.Faulty OperationFaulty Paper FeedFaulty Printout |
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