Epson Photo EX Initialization, Interface

Technical Specifications

Initialization

The printer can be initialized (returned to a fixed set of conditions) in these ways:

	Hardware initialization		∗ The printer is turned on.
			∗ The printer receives an					signal from
							INIT
			the parallel interface.
	Software initialization		∗ Software sends an ESC @ (initialize
			the printer) command.
Hardware	When the printer is turned on, the printer mechanism is initialized
initialization	and the input data buffer and print buffer are cleared. Printer settings
	are returned to their default values. However, the printer mechanism
	is not initialized if the printer is turned on within ten seconds after
	turning it off. In this case, the printer caps the print head, and ejects
	any paper in the paper path.
Software	Software initialization clears the print buffer and returns printer
initialization	settings to their default values. However, it does not initialize the
	printer mechanism or clear the data buffer.
Interface	Your printer is equipped with an 8-bit parallel interface and a serial
	interface.
Parallel interface	The built-in parallel interface has the following characteristics:
Forward channel	Data format: 8-bit parallel, IEEE-1284 compatibility mode
	Synchronization:			pulse
		STROBE
	Handshake timing: BUSY and					signals
					ACKNLG
	Signal level: TTL compatible
	Connector: 57-30360 Amphenol connector or equivalent
Reverse channel	Transmission mode: IEEE-1284 Nibble mode
	Adaptable connector: 57-30360 Amphenol connector or equivalent
	Synchronization: Refer to the IEEE-1284 specification
	Handshaking: Refer to the IEEE-1284 specification
	Signal level: IEEE-1284 Level 1 device
	Data transmission timing: Refer to the IEEE-1284 specification
Serial interface	The printer’s built-in serial interface is based on the RS-423 standard.
	This interface has the following characteristics:
	Standard: Based on RS-423
	Synchronization: Synchronous
	Bit rate: Approx. 900 Kbps

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