R51
A3 - 5
40672201TH Rev. 4
A3.1.4
R51 Circuit Diagram (Page 4/12)
1.
Block diagram
The circuit diagram shown on page 4/12 consists of the following functions:
•
IC6 (A/D converter)
•
Connector CN5 that provides an interface between R51 board and CIS (contact image
sensor).
Figure A3.1.4 shows the related signals and block diagram of CIS.
2.
Function
One-line picture data is read in the sequence from the scanning unit (CIS) as SIG signal
(analog data) to A/D converter (analog/digital converter) of IC6. After conversion from
analog data to 6-bit digital signal (SDT2 - SDT7) under the control of IC6, this picture
data is sent to IEXSEED300 (Scanning control LSI) of IC16. Here, the picture data
undergoes various kinds of picture processings.
Sensor interface signal output from IOGA4
•
LEDON :
LED on/off control signal
•
SNSCLK :
Scanning sensor drive clock (1.25 MHz)
•
MISP
:
Scanning synchronous signal (2.5 msec)
•
ADCLK :
Sampling clock for A/D converter (1.25 MHz)
Shift register & analog switches
CN5
10
3
4
2, 5, 7
-8 V
0 VA
CIS (contact image sensor)
R51
VLED
+5 V
-8 V
0 VA
LEDs array
Rod lens array
sensor
1728 bit (216 mm)
+5 V
9
6
8
1
VLED (+24V)
GLED
MISP
DCK
SIG
GLED
MISP
PDCK (1.5 MHz)
SIG
A/D converter
Amplifier
TR505/TR26
Transistor
LEDON
IEXSEED
300
IC16
SDT2 - SDT7
IC6
Figure A3.1.4 Related Signals and Block Diagram of CIS (contact image sensor)
Содержание OKIOFFICE84
Страница 7: ...40672201TH Rev 4 CHAPTER 1 GENERAL INFORMATION...
Страница 44: ...40672201TH Rev 4 CHAPTER 2 INSTALLATION PROCEDURE...
Страница 120: ...40672201TH Rev 4 CHAPTER 3 BRIEF TECHNICAL DESCRIPTION...
Страница 128: ...40672201TH Rev 4 CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY...
Страница 133: ...4 5 40672201TH Rev 4 Appearance of the OKIOFFICE84 OKIFAX 4500 FX051 CP4 Fig 01...
Страница 155: ...40672201TH Rev 4 CHAPTER 5 ADJUSTMENTS...
Страница 159: ...40672201TH Rev 4 CHAPTER 6 CLEANING AND MAINTENANCE...
Страница 187: ...40672201TH Rev 4 CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIOFFICE84 OKIFAX 4500...
Страница 232: ...40672201TH Rev 4 CHAPTER 8 DIPSWITCHS SETTING TABLES...
Страница 254: ...40672201TH Rev 4 Appendix A PC Board Descriptions and Operation Second Edition December 1998 Oki Data Corporation...
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Страница 398: ...OKIOFFICE84 OKIFAX 4500 D 7 40672201TH Rev 4 SECTION 3 UNIT 051 OPE PANEL...
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Страница 419: ...OKIOFFICE84 OKIFAX 4500 40672201TH Rev 4 D 28 SECTION 13 CABLES...
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Страница 435: ...40672201TH Rev 4 Appendix F PC Loading Second Edition December 1998 Oki Data Corporation...
Страница 436: ...40672201TH Rev 4 FX 051 SYSTEM SPECIFICATION PC LOADING PART Ver 00 11 Oki Data Confidential...
Страница 448: ...40672201TH Rev 4 Appendix G RMCS SYSTEM MANUAL For Model 30 Second Edition December 1998 Oki Data Corporation...
Страница 473: ...40672201TH Rev 4 H 18 Figure 2 1 IC16 Pin 77 IC16 Pin 78 IC16 Pin 79 IC16 Pin 80...
Страница 481: ...40672201TH Rev 4 Appendix I FAX2NET FUNCTION First Edition October 1999 Oki Data Corporation...