Some programmers call the XON and XOFF control codes “kiss on and kiss off”; others call the same protocol DC1 and DC3 (for device control). Either way, these codes are used to let your printer control the flow of data, telling the computer when to start and stop sending data. Your printer asks to have data held back when its memory is nearly full or when it senses an ERROR condition.

DTR (Data Terminal Ready) protocol does the same thing slightly differently. The printer sends a continuous high-voltage signal over the cable as long as it can accept data, but drops the voltage to send a request to the computer to stop transmitting.

Conversely, it is the computer that controls the data flow with the ETX/ACK (End-of-text/Acknowledge) protocol. The computer sends an ETX control code after each string of data, and when the printer receives that code, it sends an ACK code back to the computer, asking for more. This protocol is less used by modern computers because it tends not to hold back data when the printer’s memory gets full.

Baud Rate

Baud rate indicates the speed, in bits per second, at which data is sent to the printer. The most common setting here is 9600 or 19200.

Switch 6

Switch 7

Switch 8

Baud Rate

DOS/Windows Setting

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

Setting up a serial connection on a Windows computer

Remember that the settings you make on your computer must match those you have made using the converter’s DIP switches.

In the Windows Program Manager, open the Main group by clicking on its icon.

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Star Micronics SPC-8K user manual Switch Baud Rate, Setting up a serial connection on a Windows computer

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.