OPERATING PRINCIPLES
Rev. A
2-3
2.1.1.2 Transmission Section
This section receives the signal charge from the photo-sensitive section and transfers it to the output
section. The transmission section contains two capacitors for each photo-diode in the photo-sensitive
section. Refer to Figure 2-5.
2.1.1.3 Output Section
The output section receives signal charges from the transmission section and sends them out of the unit
(i.e., to the main board). The section must receive a reset signal from the main board after outputting the
signal for each pixel.
Output
Section
ϕ
1
ϕ
2
The diagram at left is a simple illustration of the
transmission section. f1 and f2 are transmission
pulses. The photoelectrically converted
signal charges are stored in the capacitors.
When transmission pulse f2 goes ON, signal
charges move to the capacitor at their right.
The charge that exists in the right-most capacitor
is transmitted to the output section and then to
the main board.
When transmission pulse f2 goes OFF, the
condition of the section becomes stable.
When transmission pulse f1 goes ON, charges
again move to the capacitor at their right.
When transmission pulse f1 goes OFF, the
condition of the section again becomes stable.
By continual repetition of these operations,
signal charges for all pixels are transmitted
to the output section.
Figure 2-5. Transmission Section Operation
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 ...