1.2 IEEE 1284 Bidirectional Parallel
Interface
(Parallel Interface Specifications)
Copyright (C) 1993 by the Institute of
Electrical and
Electronic Engineers, Inc.
Interface Pin Assignments for Each Mode
1
Host nStrobe
HostClk HostClk
2
Host/Ptr Data0(LSB)
Data0(LSB)
Data0(LSB)
3
Host/Ptr Data1
Data1 Data1
4
Host/Ptr Data2
Data2 Data2
5
Host/Ptr Data3
Data3 Data3
6
Host/Ptr Data4
Data4 Data4
7
Host/Ptr Data5
Data5 Data5
8
Host/Ptr Data6
Data6 Data6
9
Host/Ptr Data7 (MSB)
Data7(MSB)
Data7(MSB)
10 Printer
nAck PtrClk
PtrClk
11 Printer
Busy PtrBusy/Data3,
7 PtrBusy
12 Printer
PError AckDataReq/Data2,
6 AckDataReq
13 Printer
Select Xflag/Data1,
5 Xflag
14 Hostr
nAutoFd HostBusy
HostBusy
15
NC ND
ND
16
GND GND
GND
17
FG FG
FG
18 Printer
Logic-H Logic-H
Logic-H
19
GND GND
GND
20
GND GND
GND
21
GND GND
GND
22
GND GND
GND
23
GND GND
GND
24
GND GND
GND
25
GND GND
GND
26
GND GND
GND
27
GND GND
GND
28
GND GND
GND
29
GND GND
GND
30
GND GND
GND
31 Host
nInit nInit
nInit
Pin
Source Compatibility
Nibble Mode Byte
Mode
Mode
-19-
-18-
Pin
Source Compatibility
Nibble Mode Byte
Mode
Mode
32 Printer
nFault nDataAvail/Data0,
4 nDataAvail
33
GND ND
ND
34 Printer
DK_STATUS ND ND
35 Printer
+5V ND
ND
36 Host
nSelectIn
1284-Active
1284-Active
*ND: Not Defined
*NC: No Connect
2. Receipt Printer Connectors
2.1 Interface Connectors
2.2 Power Supply Connector
2.3 Drawer Kick-out Connector
Refer to Interface and Connection
section.
This connector is used to connect the
printer to an
external power source.
1
+24 VDC
2
GND
3
NC
Shell
Frame GND
The pulse specified by ESC p or DLE DC4
is output to this
connector. The host can confirm the
status of the input
signal by using the DLE EOT, GS a, or GS
r commands.
1) Pin assignments: Refer to page 22
2) Connector model: Printer side: MOLEX
52065-6615 or
RJ-11 telephone jack
User side:
6-position 6-contact
(RJ-11 telephone jack)
Power Supply Connector Pin Assignments
Pin Number
Signal Name
