FilmScan 200
Rev. A
2-4
2.1.2 Carriage Operation
Because photo-sensor elements are aligned and have a one-to-one correspondence with a horizontal row
of pixels, no mechanical operation is required for the main scan (one horizontal reading of the original
film). To read more than a single line, however, vertical movement (sub-scanning) is also necessary. This
requires mechanical movement of the scanner head. h other words, scanning is performed by reading one
line at a time, moving in the vertical direction. The operation is illustrated in Figure 2-6.
2.1.2.1 Film Carrier Preview Scanning
The preview motor on the carrier holder unit of the engine drives the film carrier back and forward via
reduction gear. Refer to Figure 2-7.
At the Preview scanning mode, six or four image frames (due to the type of the film carrier) are scanned
at once.
This scanner has an auto-loading function of the film carrier. The status of the carrier and scanning
position where image frame is read are detected by the photo sensor for preview scanning.
Single Pixel
Main
Scan
Sub-scan (Real-scan: By carrier holder movement)
(Preview-scan: film carrier movement)
Film
Second Line
First Line
Scanner Head
(Optical Unit)
Figure 2-6. Original Film Reading
Carrier Holder Unit
Preview motor
Film Carrier
Photo Sensor
Figure 2-7. Carrier Holder Unit (Preview scanning block)
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 ...