R76-
OF5750/5950 Series January 2001
A3 - 15
A3.1.7
LED Head Control
The IOGA5 on the MCNT board transfers image data to the LED head. After receiving the
image data, the LED head illuminates in the next line cycle, exposing the drum. The head’s
internal block diagram is shown below. The timing charge is shown on the next page.
Head’s Internal Block Diagram
1
2
2
3
3
4
5
1
5
192
4
Driver IC-1
1153
1154
1154
1155
1155
1156
1153
1156
Driver IC-7
2305
2306
2306
2307
2307
2308
2305
2308
Driver IC-13
3649
3650
3650
3651
3651
3652
3649
3652
Driver IC-20
4989
4990
4990
4991
4991
4992
4989
4992
Driver IC-26
20~26 chip
13~19 chip
7~12 chip
1~6 chip
dot-4992
CC
dot-1
HDSTB1-N
HDSTB2-N
HDSTB3-N
HDSTB4-N
HDCLK-P
HDDLD-P
HDD3-P
HDD2-P
HDD1-P
HDDC-P
Logic GNG
Vi
n
LED-GND
Regulator
IC
V
ref
Vi
n
G
N
D
OLM6730-**
From Mcnt
192
Summary of Contents for OKIFAX 5950
Page 9: ...CHAPTER 1 GENERAL INFORMATION ...
Page 101: ...OF5750 5950 Series January 2001 1 92 1 6 21 NIC Information ...
Page 107: ...CHAPTER 2 INSTALLATION PROCEDURE ...
Page 264: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION ...
Page 272: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY ...
Page 277: ...OF5750 5950 Series January 2001 4 5 Appearance of the OKIFAX 5750 5950 ...
Page 302: ...CHAPTER 5 ADJUSTMENTS ...
Page 306: ...CHAPTER 6 CLEANING AND MAINTENANCE ...
Page 341: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750 5950 ...
Page 400: ...Appendix A PC Board Descriptions and Operation ...
Page 491: ...Appendix B DescriptionsofPrintOperation ...
Page 513: ...Appendix C Not used at this time ...
Page 516: ...OF5750 5950 Series January 2001 D 1 Section 1 CABINET ASSEMBLY 27 28 29 ...
Page 518: ...OF5750 5950 Series January 2001 D 3 Section 2 CONTROL PANEL ASSEMBLY 11 ...
Page 520: ...OF5750 5950 Series January 2001 D 5 Section 3 PRINTER ASSEMBLY 53 54 31 10 55 52 34 56 ...
Page 523: ...OF5750 5950 Series January 2001 D 8 Section 4 BASE ASSEMBLY ...
Page 525: ...OF5750 5950 Series January 2001 D 10 Section 5 FRAME ASSEMBLY SCANNER L 31 30 33 32 ...
Page 527: ...OF5750 5950 Series January 2001 D 12 Section 6 FRAME ASSEMBLY SCANNER U ...
Page 529: ...OF5750 5950 Series January 2001 D 14 Section 7 CABLES OPTION BOARDS ...
Page 530: ...OF5750 5950 Series January 2001 D 15 28 29 Section 7 CABLES OPTION BOARDS ...
Page 532: ...Appendix E Not used at this time ...