Technical Specifications
B-7
Initialization
The printer can be initialized (returned to a fixed set of conditions) in
these ways:
Hardware
initialization
When the printer is turned on, the printer mechanism is initialized
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
initialization
Software initialization clears the print buffer and returns printer
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: STROBE
pulse
Handshake timing: BUSY and ACKNLG
signals
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
Hardware initialization ∗ The printer is turned on.
∗ The printer receives an INIT
signal from
the parallel interface.
Software initialization ∗ Software sends an ESC @ (initialize
the printer) command.
