Citizen Systems CBM-291 user manual Data receiving control, Rxd

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7.5 Data receiving control

When DTR/DSR control having been selected, with BUSY signal at "LOW", data from the host side are received. With the signal at "HIGH", they can not be received.

When DTR/DSR control not having been selected, after X-ON transmission, data is received from the host side. No transmission of data can take place after X-OFF is transmitted.

7.6 Buffering

Data transfer to the input buffer include DTR signals and TD signals as the control signals

concerned.
(1)	DTR signals (See 7.2. (2).)
(2)	TXD signals (See 7.2. (3).)

7.7Electrical characteristics

(1)RS-232C Circuit

Input (RXD, DSR)

RXD	Mark = (-8V) : Stop bit
MAX 232 equivalent	Space = (+8V) : Start bit
Output (DTR, TXD)

MAX 232 equivalent
DTR (-8V) : When busy	TXD Mark = (-8V) : 1
(+8V) : When ready	Space =(+8V) : 0

CITIZEN

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Contents User’s Manual Important safety instruction Citizen Citizen Citizen Precautions for installation Citizen Ordinary Maintenance Contents Date configuration Outline FeaturesPackage Model classifications Basic SpecificationsUL, CUL, TUV EMI SpecificationsContents Code 39, Code 128, CodabarPrinting 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 paperPE and Mechanical alarm Removing paper jam and canceling cutter lockSelf print function Citizen Dip switch setting Function of each connector pins Connecting connectorError Explanation of input / output signals PrecautionsParallel Interface Electrical characteristics Data receiving control Timing chartBuffering Serial Interface Explanation of Input / Output signals Error detection Date configurationRXD NOP Command LitPrint Control Function Control Function CodeValue 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.