Citizen Systems CBM-291 Parallel Interface, Precautions, Explanation of input / output signals

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5.2 Precautions

1.For LED ERROR , there is a resister of 330 Ohm on the circuit side to make current value 10 mA. Please use LED which its voltage is approx. 2V. LED over 10 mA may break a control board.

2.Make sure to supply power to all pins of power supply for circuit and power supply for operation to keep required current capacity.

3.Serial interface equips a driver and receiver of RS-232C, make sure to use it at RS-232C level.

4.RESET terminal is pulled up by 3.3K Ohm. Make sue to make this terminal NC, when this terminal is not used.

5.Absolutely, do not carry use No.19, No.21 and No.40 pins. Since they are used for printer main unit. In case they are used, they may cause abnormality or break control board.

6 Parallel Interface

6.1 Specifications

Data input method

: 8 bit parallel signal (DATA0 - 7)

 

 

 

 

 

 

 

 

 

 

Control signals

: ACK, BUSY, STB, FAULT, PE, RESET

6.2 Explanation of input / output signals

DATA0-7

: 8 bit parallel signal (Positive logic)

 

 

 

 

STB

: Strobe signal to read 8 bit data (Positive signal)

 

 

 

RESET

: Signal to reset control board

 

 

 

ACK

: 8 bit data request signal. Pulse signal output at the end of the BUSY signal

 

 

 

(Negative logic)

BUSY

: Signal to indicate BUSY state of the printer.Input new data for "LOW" (Positive logic)

 

 

 

FAULT

: Signal which is made "LOW" when printer is in alarm state.(Negative logic)

PE

: Signal which is output when paper runs out.(Positive logic)

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 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 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 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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