Oki B410 Maintenance Manual page 137

Oki Data CONFIDENTIAL
(3)
Pin No
1
nStrobe(HostClk)
2 DATA 1
3 DATA 2
4 DATA 3
5
DATA 4
6 DATA 5
7 DATA 6
8
DATA 7
9 DATA 8
10 nAck(PtrClk)
11 Busy(PtrBusy)
12 PError(AckDataReq)
13
Select(Xflag)
14 nAutoFd(HostBusy)
15 Not used
16
GND
17 FG
18 HILEVEL
19~30 GND
31 nInit(nInit)
32 nFault(nDataAvail)
33 GND
34 Not used
35 HILEVEL
36 nSelectIn
(IEEE1284 active)
(Note 1) The word in parentheses is a signal name of the nibble mode.
(Note 2) Only the function of the compatible mode is described.
(Note 3) This printer supports the nibble ode of IEEE std 1284-1994 prescribed by Institue of Electrical and
Electronic Engineers. When using computers or cables not compatible with this standard, unexpected
operations may occur.
• Connector Pin Allocation
(4) Signal Level
• LOW : 0V to +0.4V
• HIGH : +2.4V to 5.0V
43984801TH Rev.1
List of Parallel I/F Signals
Signal Name Direction
TO PRINTER
TO PRINTER
FROM PRINTER Signal to show that the data reception is completed.
FROM PRINTER Signal to show whether the printer can receive data.
FROM PRINTER The device becomes the high level when it out of paper in a
FROM PRINTER Always the high level.
TO PRINTER
FROM PRINTER It is pulled up to 3.3
TO PRINTER
FROM PRINTER It becomes the low level when the printer is in the alarm
FROM PRINTER It is pulled up to 3.3
TO PRINTER
Pulse to read data.
The data is read at the posterior border.
8-bit parallel data
The high level is "1" and the low level is "0".
It is outputted at the posterior border of the busy signal.
The data can not be received at the high level.
selected feeder.
It is used in the bi-directional communication.
− Not connected.
− Signal Ground
− Chassis Ground
− Signal Ground
When the low level is continued at 50μS or more, the printer
is initialized. It may be enabled at 50μS or less. This signal
is ignored at the factory default.
status.
− Signal Ground
− Not Connected
It is used in the bi-directional communication.
Appendix A Centronics Parallel Interface
Function
and +5V in the printer.
and +5V in the printer.
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