GENERAL
40838301TH Rev.1
A1 - 4
A1.2
Function of Each Unit
The section describes the principal functions of the individual units of the OKIFAX 5400 electrical
sections.
Figure A1.2.1 shows the pertinent block diagram.
(1)
E17 board
•
CPU (208P-QFP)
Printer control
OST-EX
Buffer 640 kbytes
DEC,(REL, TIFF, ACC)
200-300/300-200 conversion
Smoothing
High-voltage control
SH7034 CPU core
Peripheral input/output control
1284 I/F
CS
I/O port
DMAC 2ch
ROM: 64k x 8bit
RAM: 4k x 8bit
•
IEXSEED 300
Image data processing
•
SRAM (32 x 8bit)
Memory storage for image picture data
•
Supervision of the following external statuses:
Presence of document on hopper
Presence of document at scanning position
•
Send motor control
•
Fan motor control
•
Drum motor control
•
Resist motor control
•
Modem chip/Modem option board (Board S.34, V.34 or T.34)
Modulation and demodulation for V.34
Modulation and demodulation for V.33 and V.17
Modulation and demodulation for V.29 and V.27 ter
Generation of signal-frequency signals for tonal signals
Detection of signal-frequency tonal signals
Generation of dual time multiple-frequency signals for tone dialing
(2)
Operation panel unit
•
Supervision of switches on operation panel
•
Control of LEDs on operation panel
•
Control of LCD on operation panel
LED : Light-emitting diode
LCD : Liquid crystal display
Summary of Contents for OKIFAX 5400
Page 7: ...40838301TH Rev 1 CHAPTER 1 GENERAL INFORMATION...
Page 46: ...40838301TH Rev 1 CHAPTER 2 INSTALLATION PROCEDURE...
Page 130: ...40838301TH Rev 1 CHAPTER 3 BRIEF TECHNICAL DESCRIPTION...
Page 138: ...40838301TH Rev 1 CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY...
Page 157: ...40838301TH Rev 1 CHAPTER 5 ADJUSTMENTS...
Page 162: ...40838301TH Rev 1 CHAPTER 6 CLEANING AND MAINTENANCE...
Page 189: ...40838301TH Rev 1 CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5400...
Page 240: ...40838301TH Rev 1 CHAPTER 8 DIPSWITCHS SETTING TABLES...
Page 380: ...40838301TH Rev 1 D 2 SECTION 1 CABINET ASSEMBLY 5...
Page 382: ...40838301TH Rev 1 D 4 SECTION 2 CONTROL PANEL ASSEMBLY...
Page 384: ...40838301TH Rev 1 D 6 SECTION 3 PRINTER ASSEMBLY 51...
Page 387: ...40838301TH Rev 1 D 9 SECTION 4 BASE ASSEMBLY 30 37 36 39 40 5...
Page 390: ...40838301TH Rev 1 D 12 SECTION 5 SCAN UNIT...
Page 392: ...40838301TH Rev 1 D 14 SECTION 6 PAPER GUIDE U ASSEMBLY...
Page 394: ...40838301TH Rev 1 D 16 SECTION 7 CABLES 10 11 19 12 20 21...
Page 396: ...40838301TH Rev 1 D 18 SECTION 8 OPTION TELEPHONE US...
Page 399: ...40838301TH Rev 1 D 21 SECTION 8 OPTION TELEPHONE UK ITA NOR DEN BEL...
Page 402: ...40838301TH Rev 1 D 24 SECTION 8 OPTION TELEPHONE HOL GER FRA SWITZ AUT INT L...