40055101TH Rev.4
404 /
A3.2.2
M17 Circuit Diagram (Page 2/17)
1.
Block diagram
The circuit diagram shown on page 2/17 consists of an input/output gate array IC2 (IOGA3).
Figure A3.2.2 shows the related signals of IOGA3.
2.
Functions
IOGA3 is newly developed LSI for scanning and printing control of OKIFAX 5000 series.
IOGA3 contains the following functions:
•
Strobe signals control for LED head
•
Smoothing control for printing data
•
Interface of the peripheral LSI and CPU
3.
Others
1)
The route to transfer print data to the LED head is follows:
•
Data bus route: RX, Memory, Report mode, etc.
2)
System clock (CLK) is divided by IOGA3 and these divided clocks are transferred to the
IEXSEED (IC20), LED head and 2’nd tray.
IOGA3
Data bus
HDATA
System clock
(20.000 MHz)
HCLCK (6.67 MHz/10MHz): to LED head
OPCLK-N (156.25 kHz): to 2'nd tray
AD00
to
AD15
Figure A3.2.2 Related Signals of IOGA
Data/address bus
Printer control
OST-EX
Buffer 640 bytes
Decompressed
(RLE, TIFF, ACC32)
200-300/300-200 con-
verter
High-voltage control
smoothing
Various sensor
M
D-motor
2/2
LED head
Power supply
unit
Fan
Data/address bus
Peripheral control
1284 control
CS generation
I/O port
1/2
Bi-Centro
I/F
CTR
OPE unit
2nd tray
Speaker
DRV
M
R-motor
DRV
Содержание B4100
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Страница 545: ...40055101TH Rev 4 545 54 SECTION 1 CABINET ASSEMBLY FAX NIP FX048...
Страница 548: ...40055101TH Rev 4 548 SECTION 2 UNIT PRINTER...
Страница 550: ...40055101TH Rev 4 550 SECTION 3 UNIT 048 OPE PANEL...
Страница 552: ...40055101TH Rev 4 552 SECTION 4 OPEPANEL OPERATION PANEL ASSEMBLY...
Страница 554: ...40055101TH Rev 4 554 SECTION 5 FRAME ASSEMBLY SCANNER L...
Страница 556: ...40055101TH Rev 4 556 SECTION 6 PLATE ASSEMBLY SCANNER B...
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Страница 564: ...40055101TH Rev 4 564 SECTION 10 PLATE ASSEMBLY BASE...
Страница 569: ...40055101TH Rev 4 569 SECTION 12 PRINTER HEAT ASSY...
Страница 571: ...40055101TH Rev 4 571 SECTION 13 CABLES...
Страница 574: ...40055101TH Rev 4 574 SECTION 1 CABINET ASSEMBLY...
Страница 576: ...40055101TH Rev 4 576 SECTION 2 CONTROL PANEL ASSEMBLY OKIFAX 5200 5300...
Страница 577: ...40055101TH Rev 4 577 SECTION 2 CONTROL PANEL ASSEMBLY OKIFAX 5500 5600...
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Страница 585: ...40055101TH Rev 4 585 SECTION 5 SCAN UNIT...
Страница 587: ...40055101TH Rev 4 587 SECTION 6 PAPER GUIDE U ASSEMBLY...
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