Velocità Baud

con cui la stampante comunica al computer che è pronta a ricevere dati. Il computer e la stampante comunicano tra loro inviandosi caratteri di controllo relativi al protocollo (situati all’inizio della tabella ASCII).

Alcuni programmatori chiamano i codici di controllo XON e XOFF “kiss on e kiss off”; altri chiamano lo stesso protocollo DC1 e DC3 (per il controllo del dispositivo). Ad ogni modo, tramite questi codici la stampante controlla il flusso dei dati, comunicando al computer quando iniziare e quando terminare l’invio di dati. La stampante richiede al computer di interrompere la trasmis- sione quando il suo buffer di ricezione è quasi pieno oppure quando individua una condizione di ERRORE.

Il protocollo DTR (Data Terminal Ready) esegue la stessa operazione in modo leggermente diverso. La stampante invia lungo il filo un segnale continuo ad alto voltaggio finché il suo buffer di ricezione può accettare dati, mentre abbassa il voltaggio per richiedere al computer di interrompere la trasmissione. Al contrario, con il protocollo ETX/ACK (End-of-text/Acknowledge) è il computer che controlla il flusso dei dati. Il computer invia un codice di controllo ETX al termine di ogni stringa di dati; quando la stampante riceve questo codice, risponde al computer inviando un codice ACK per richiedere altri dati. Questo protocollo è quello meno usato dai computer moderni, poiché la trasmissione dei dati non viene interrotta quando il buffer della stampante si riempie.

La velocità baud indica la velocità, espressa in bit al secondo, con cui i dati vengono trasmessi alla stampante. L’impostazione più comune in questo caso è 9600 o 19200.

Interruttore 6 Interruttore 7 Interruttore 8 Velocità Baud Impostazione DOS/Windows

OFF	OFF	OFF	150 bps	150
OFF	OFF	ON	300 bps	300
OFF	ON	OFF	600 bps	600
OFF	ON	ON	1200 bps	1200
ON	OFF	OFF	2400 bps	2400
ON	OFF	ON	4800 bps	4800
ON	ON	OFF	9600 bps	9600

ON	ON	ON	19200 bps	19200

SPC-8K specifications

The Star Micronics SPC-8K is a versatile and efficient printing solution specifically designed to meet the demanding needs of various industries, including retail, hospitality, and healthcare. Renowned for its advanced technology and robust characteristics, the SPC-8K stands out in the market of thermal printers.

One of the main features of the SPC-8K is its high-speed printing capability. The printer can produce crisp, clear receipts and labels at an impressive speed of up to 300mm per second, significantly reducing customer wait times in busy environments. This fast output is complemented by a high-resolution print capacity, offering sharp graphics and barcodes, ensuring that every detail is legible.

The SPC-8K also utilizes advanced thermal printing technology, which not only enhances the quality of prints but also minimizes environmental impact. The printer operates without the need for ink or toner, thus reducing ongoing costs and waste. This feature appeals to businesses looking to streamline their operations while being more eco-friendly.

Another notable characteristic is the compact and lightweight design of the SPC-8K, which allows for easy integration into a variety of setups. Whether it’s mounted at point-of-sale (POS) stations or used in mobile applications, the printer’s flexibility makes it an ideal choice for both stationary and on-the-go printing needs.

Connectivity options also play a crucial role in the SPC-8K’s functionality. It supports multiple connectivity interfaces, including USB, Ethernet, and Bluetooth, enabling seamless integration with various operating systems and devices. This versatility allows businesses to adapt the printer according to their existing technology environments, thereby enhancing operational efficiency.

With a user-friendly interface, the SPC-8K features intuitive controls and easy paper loading mechanisms, making it easy for staff to operate with minimal training. Additionally, the printer is built to last, featuring durable materials and a robust design that withstands the rigors of daily use.

In summary, the Star Micronics SPC-8K is a feature-rich thermal printer that offers high-speed performance, advanced technology, and a compact design, making it an excellent choice for a wide range of industries. Its combination of quality, efficiency, and connectivity options positions it as a leading solution for businesses aiming to enhance their print operations while maintaining cost-effectiveness.