Ieee 1284 Bidirectional Parallel Interface(Parallel Interface Specifications); Specifications; Switching Between On-Line And Off-Line - Samsung SRP-500 Programmer's Manual

2.1.2 IEEE 1284 Bidirectional Parallel Interface (Parallel Interface Specifications)
Copyright (C) 1993 by the Institute of Electrical and Electronic Engineers, Inc.

2.1.2.1 Specifications

Synchronization:
Handshaking:
Signal levels:
Connector:
Reverse communication (Printer Host): Nibble or Byte Mode, ECP Mode.

2.1.2.2 Switching between on-line and off-line

The printer is not equipped with any on-line/off-line switch. The printer is placed
into off-line status in either of the followings:
When the power is turned on or until the printer becomes ready for data
transmission after it is initialized by the reset signal (nInit) from the interface.
In the process of self-test.
In the process of paper feeding using the paper feed switch
Between the time when the printer stops printing due to a paper-end .
When an error has occurred.
2002. 1. 8.
Externally supplied nStrobe signals
nAck and Busy signals
TTL compatible
Centronics 36P
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