CHAPTER 2
OPERATING PRINCIPLES
2.1 ENGINE OPERATION ............................................................................................2-1
2.1.1 Scanner Head Operation........................................................................................................ 2-1
2.1.1.1 Photosensitive Section .............................................................................................. 2-2
2.1.1.2 Transmission Section ................................................................................................ 2-3
2.1.2 Carriage Operation ................................................................................................................. 2-4
2.1.2.1 Film Carrier Preview Scanning .................................................................................. 2-4
2.1.2.2 Film Carrier Main Scanning....................................................................................... 2-5
2.1.2.3 APS Holder Preview and Main Scanning .................................................................. 2-5
2.2 POWER SUPPLY OPERATION .............................................................................2-8
2.2.1 Power Supply Overview......................................................................................................... 2-8
2.2.2 Circuit Operation .................................................................................................................... 2-9
2.3. CONTROL CIRCUIT ...........................................................................................2-10
2.3.1 Control Circuit Outline ......................................................................................................... 2-10
2.3.2 Reset Circuit.......................................................................................................................... 2-13
2.3.3 Photo Sensor Circuit ............................................................................................................ 2-13
2.3.4 Preview and Main Scan Motor Drive Circuits .................................................................... 2-14
2.3.4.1 Main Scan Motor Drive Circuit................................................................................. 2-15
2.3.4.2 Preview Motor Drive Circuit ..................................................................................... 2-16
2.3.5 Image Sensor Drive Circuit.................................................................................................. 2-17
Summary of Contents for FILMSCAN 200
Page 1: ...EPSON FILM SCANNER FilmScan 200 SERVICE MANUAL SEIKO EPSON CORPORATION 4007375 ...
Page 5: ...v REVISION SHEET Revision Issued Data Contents Rev A FEBRUARY 28 1997 First issue ...
Page 8: ...EPSON SEIKO EPSON CORPORATION ...
Page 75: ...CHAPTER 4 ADJUSTMENT No adjustment is required in this product ...
Page 85: ...CHAPTER 6 MAINTENENCE 6 1 MAINTENENCE 6 1 6 2 LUBRICATION 6 1 ...
Page 86: ...APPENDIX A 1 CONNECTOR PIN ASSIGNMENTS 1 A 2 EXPLOED DIAGRAM 8 ...
Page 88: ...FilmScan 200 Rev A A 2 Figure A 2 Cable Connection SCSI Model ...
Page 95: ...APPENDIX Rev A A 9 Figure A 4 FilmScan 200 Bi D Model Exploded Diagram 2 2 ...
Page 96: ...FilmScan 200 Rev A A 10 Figure A 5 FilmScan 200 SCSI Model Exploded Diagram 1 2 ...
Page 97: ...APPENDIX Rev A A 11 Figure A 6 FilmScan 200 SCSI Model Exploded Diagram 2 2 ...
Page 98: ...FilmScan 200 Rev A A 12 Figure A 7 APS Holder option Exploded Diagram ...
Page 100: ...FilmScan 200 Rev A 6 2 Shaft 1 G 36 1 G 36 Figure 6 1 Lubrication Points ...