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R76-
OF5750/5950 Series January 2001
A3 - 22
A3.1.11 Centronics Parallel Interface
The LSI sets a BUSY-P signal to ON at the same time when it reads the parallel data
(PDATA1-P to PDATA8-P) from the parallel port at the fall of STB-N signal. Furthermore, it
makes the store processing of receiving data into a receive buffer terminate within a certain
fixed time and outputs an ACK-N signal, setting the BUSY-P signal to OFF.
PDATA1-P to PDATA8-P
STB-N
LSI
32, 33, 35 - 38, 40, 41
29
STB-N
2 to 9
DATA8-P
to
DATA1-P
NSX
Interface IC
IC30
5V
3.3V
BUSY-P
45
BUSY-P
1
ACK-N
46
ACK-N
11
PE-P
47
PE-P
10
SEL-P
43
SEL-P
12
FAULT-N
44
FAULT-N
13
PINIT-N
28
IPRIME-N
32
SELIN-N
27
SELIN-N
31
AUTOFEED-P
26
AUTOFEED-P
36
14
+5V
+5V
Fuse
tA
18
0 min.
0 min.
0 min.
PARALLEL DATA
(DATA BITs 1 to 8)
DATA STOROBE
BUSY
0 min.
0.5
µ
s to 10
µ
s
0.5
µ
s max.
0.5
µ
s min.
0.5
µ
s min.
0.5
µ
s min.
0.5
µ
s min.
ACKNOWLEDGE
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 ...