Citizen Systems CBM-291 user manual Explanation of Input / Output signals

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7.2Explanation of Input / Output signals

7.2.1Input / Output signals

(1)RD

Serial receiving data signal. On occurrence of framing error, overrun error, or parity error, the data is printed as "?".

(2) DTR

When this signal is READY, write data or a command. When they are written in BUSY, overrun error is occurred and data is ignored. Even during printing, data can be loaded in the input buffer. Further, BUSY can take place on supply of power, during test printing, during on-line, or on resetting.

(3) TD

When, while in data reception, the rest of input buffer on the printer side goes less than 128 bytes , DC3 (13H) data reception impossible signals are output.

When the rest of input buffer goes more than 256 bytes, DC1 (11H) data reception possible signals are output to the host. When DTR/DSR control having been selected in status

information transmission, it is first confirmed that DSR is "space" and data is sent. When DTR/DSR control has not been selected, DSR is ignored and data is transmitted.

(4) FG

Case GND

(5) GND

Common GND on the circuit.

CITIZEN

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Contents User’s Manual Important safety instruction Citizen Citizen Citizen Precautions for installation Citizen Ordinary Maintenance Contents Date configuration Package FeaturesOutline Model classifications Basic SpecificationsContents SpecificationsCode 39, Code 128, Codabar UL, CUL, TUV EMIPrinting position Position of printer head and auto cutter Specifications of Roll paper Recommended paperSpecified Power Supply Citizen Rack mounting OperationConnecting a cable for power supply and interface Paper feeding Opening/closing front coverAuto paper loading function Setting roll paperSelf print function Removing paper jam and canceling cutter lockPE and Mechanical alarm Citizen Dip switch setting Error Connecting connectorFunction of each connector pins Parallel Interface PrecautionsExplanation of input / output signals Electrical characteristics Buffering Timing chartData receiving control Serial Interface Explanation of Input / Output signals Error detection Date configurationRXD Print Control Function Command LitControl Function Code NOPValue BIT Function Command DetailsExample Vertical Direction Horizontal Direction Mode NO. of Dots DOT DensityCitizen Character SET Drawer kick No pin BIT Function ValueSpecifying inverted characters UPC-A UPC-E JAN13 EAN JAN 8 EAN Code ITF Codabar NW-7 Citizen Mode Name DOT Density Position Citizen International Character TableInternational Character Code Table Appendix 1. Block Diagram Appendix 2. Outer Appearance

CBM-291 specifications

The Citizen Systems CBM-291 is a versatile and high-performance thermal printer designed for a wide range of printing applications. Known for its reliability and efficiency, this printer is particularly favored in environments requiring seamless ticketing, receipts, or labels.

One of the standout features of the CBM-291 is its advanced thermal printing technology. Utilizing direct thermal printing, the printer eliminates the need for ink, toner, or ribbons, which reduces both operational costs and maintenance efforts. This makes the CBM-291 an eco-friendly choice while delivering high-quality prints with crisp and clear text, barcodes, and graphics.

The printer offers a high-speed printing capability, with a maximum print speed of 200 mm per second. This ensures swift transactions, making it ideal for retail, hospitality, and transportation sectors where fast service is essential. Additionally, the CBM-291 boasts a resolution of 203 dpi, ensuring that all printed material meets professional standards.

Furthermore, the CBM-291 features a compact design that allows for easy integration into various workspace environments. It comes with flexible connectivity options, including USB, RS-232, and Ethernet interfaces, enabling seamless connection with a variety of devices such as POS systems, computers, and mobile devices. This versatility allows businesses to adapt the printer to their existing systems without significant modifications.

Another important characteristic of the CBM-291 is its user-friendly interface. The printer includes an easy-access paper compartment and a simple drop-in mechanism that allows for quick paper loading. This design minimizes downtime and enhances productivity by allowing users to change rolls quickly.

Durability is also a key aspect of the CBM-291. Constructed to withstand various operational demands, it features a robust housing that protects it from the typical wear and tear encountered in busy environments. Additionally, the printer offers a long lifespan, minimizing the need for frequent replacements.

In summary, the Citizen Systems CBM-291 combines advanced thermal printing technology, high-speed performance, versatile connectivity, and user-friendly features to meet the diverse needs of modern businesses. Its reliability and efficiency make it an excellent choice for any setting requiring dependable printing solutions.
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