4.10 Paper Sensors

The following paper sensors are available.

❏TOF Sensor

This top-of-form sensor detects the leading edge of the paper.

When enabled, the TOF sensor detects when there is no paper present and stops printing.

❏BOF Sensor

This bottom-of-form sensor detects the trailing edge of the paper. When enabled, the BOF sensor detects when there is no paper present and printing is interrupted.

When the TOF or BOF sensor detects that no paper is present, the printer stops its motor after printing of 0 to a maximum of two more lines.

The BOF sensor detects a paper out condition whenever the distance between print head pin #9 and the trailing edge of the paper becomes 38.1 mm or less. The print stop operation is not entered until the distance between print head pin #9 and the trailing edge of the paper becomes 27.3 mm or less.

When the auto clamp is enabled with Memory Switch 5-1, the auto clamp operation is performed about 1.0 second (Initial value is approximately

1 second) after the presence of paper is detected both by the TOF and BOF sensors, following a paper out condition. The auto clamp function is not affected by whether the TOF or BOF sensor is enabled or disabled.

The top of form positioning function is enabled with Memory Switch 5-0. Even if the auto clamp function is disabled, auto top of form positioning is performed if the paper is clamped when printing starts.

The PAPER OUT lamp flashes to request insertion of paper when the sensors detect there is no paper (when a sensor enabled by command detects no paper) after data is received by the printer. At that time, the user inserts paper, and printing begins after the sensor detects that paper is present.

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Citizen Systems CBM-820 manual Paper Sensors
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CBM-820 specifications

The Citizen Systems CBM-820 is a compact and versatile thermal printer designed to meet the varied needs of modern businesses, especially in retail and hospitality environments. Known for its reliability and performance, this printer is well-suited for high-volume printing tasks, making it an ideal choice for point-of-sale applications.

One of the standout features of the CBM-820 is its fast printing speed, capable of producing receipts at an impressive rate of up to 200 mm per second. This speed ensures that businesses can efficiently process transactions, reducing customer wait times and enhancing the overall service experience. The printer supports various paper widths, providing flexibility to accommodate different receipt sizes and formats.

The CBM-820 utilizes advanced thermal printing technology, which eliminates the need for ink or toner, resulting in lower operating costs. The thermal print head has a long lifespan, ensuring durability and minimal maintenance requirements. Additionally, the printer supports multiple printing resolutions, delivering high-quality output that enhances the readability of printed text and graphics.

Connectivity is another strong point of the CBM-820. It offers various interface options, including USB, Ethernet, and serial connections, allowing seamless integration with existing point-of-sale systems. The printer is compatible with various operating systems, ensuring broad applicability for businesses using different software platforms.

Furthermore, the CBM-820 is designed with user convenience in mind. It features an easy-to-load paper mechanism that simplifies changing rolls, minimizing downtime during busy periods. The compact design of the printer allows it to fit neatly into limited counter spaces, making it a practical choice for retail and restaurant settings.

From a software perspective, the CBM-820 supports standardized command languages like ESC/POS, enabling easy integration into various applications. This adaptability makes it suitable for a wide range of industries, from traditional retail stores to mobile food vendors.

In terms of environmental considerations, Citizen Systems has designed the CBM-820 to be energy-efficient, consuming less power than many traditional printers. This not only helps businesses reduce their operating costs but also aligns with sustainable practices.

In conclusion, the Citizen Systems CBM-820 stands out as a high-performance thermal printer that combines speed, efficiency, and versatility. Its robust features and user-friendly design make it an excellent choice for any business looking to enhance their printing capabilities while maintaining cost-effectiveness.
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