COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)I. INTRODUCTION ............................. 5-1A. Initial Check ............................ 5-1B. Others ...................................... 5-1II. TROUBLESHOOTING ..................... 5-2A. Troubleshooting ImageDefects .................................... 5-2B. TroubleshootingMalfunctions ........................... 5-3III. LOCATION OF ELECTRICALPARTS ............................................ 5-4IV. CANON SCANNER TEST ................ 5-6A. Outline .................................... 5-6B. Canon Scanner Test forCanoScan FB330P/FB630P ..... 5-6C. Canon Scanner Test USB forCanoScan FB630U/FB636U............................................... 5-12CHAPTER 5 : TROUBLESHOOTINGCHAPTER 4 : MAINTENANCE AND SERVICINGI. PERIODICAL REPLACEMENTPARTS ............................................ 4-1II. CONSUMABLE PARTSDURABILITY .................................. 4-1III. PERIODICAL SERVICING .............. 4-1IV. SPECIAL TOOLS ............................ 4-1V. SOLVENTS AND LUBRICANTS ...... 4-1CHAPTER 3 : MECHANICAL SYSTEMI. EXTERNALS .................................. 3-1A. Covers ...................................... 3-1II. DRIVE SYSTEM .............................. 3-7A. Scanning Unit Drive Part ........ 3-7III. OPTICAL SYSTEM ....................... 3-11A. Contact Image Sensor ........... 3-11IV. PCB .............................................. 3-15A. Main PCB ............................... 3-15B. Button PCB ........................... 3-17CHAPTER 6 : PARTS CATALOGCanoScan FB330P/CanoScanFB630P................................................. 6-1CanoScan FB630U/CanoScan FB636U................................................. 6-7