Citizen Systems CBM-290, 291 user manual Input / Output signals

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CBM-290/291 User’s Manual

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.

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CITIZEN

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Contents Line Thermal Printer Page Declaration of Conformity Important Safety Instructions Wichtige Sicherheitsanweisungen Sicherheitshinweis Citizen Citizen Precautions for Installation Precautions for Handling Handling thoroughly, to operate the equipment correctly Ordinary Maintenance Contents Print Control Function Features PackageBasic Specifications Model classificationsCode 39, Code 128, Codabar SpecificationsContents UL, CUL, TÜV. GS EMISpecifications of Roll paper Recommended paperSpecified Power Supply Outer appearances and parts nameExplanation of each parts Operation Rack mountingConnecting a cable for power supply and interface Opening/closing front cover Paper feeding Setting roll paperAuto paper loading function Make sure to pay attention to the followings Removing paper jam and canceling cutter lock PE and Mechanical alarm Self print functionDip switch setting Function of each connector pins Connecting connectorError Output ACK, BUSY, STB, FAULT, PE, Reset PrecautionsExplanation of input / output signals Parallel InterfaceElectrical characteristics Data receiving control Timing chartBuffering Serial Interface Input / Output signals Date configuration Error detectionDTR Maintenance and Service Command Lit Print Control FunctionCommand Details Value BIT FunctionCitizen Mode NO. of Dots DOT Density MAX. no of Dots Vertical Direction Horizontal DirectionType Citizen Character SET Citizen Selecting Character Code Table ESC t n Value BIT FunctionNot defined Paper end Paper remains Paper out UPC-A UPC-E JAN13 EAN JAN 8 EAN Code ITF Codabar NW-7 GS H Citizen Normal mode 203 DPI BIT Equipment Position Citizen International CharacterTableCitizen International Character Code Table Appendix 1. Block Diagram Appendix 2. Outer Appearance

291, CBM-290 specifications

Citizen Systems CBM-290 and CBM-291 printers are renowned for their reliability and performance in the realm of POS (Point of Sale) printing. Designed specifically for retail and hospitality environments, these thermal printers are equipped with advanced technologies that ensure efficiency and high-quality output.

One of the standout features of the CBM-290 series is their exceptional speed. Both models are capable of printing at speeds of up to 200 mm per second, significantly reducing transaction times. This fast output is crucial in busy settings, where every second counts during customer service. Additionally, they offer high-resolution printing, producing clear and sharp receipts with 203 dpi, which enhances the readability of printed text and barcodes.

The CBM-290 and CBM-291 are designed with versatility in mind. Both models support various media types, including paper rolls, and are compatible with standard POS applications. Their ability to handle different paper widths makes them suitable for diverse printing needs, allowing businesses to customize their receipt formats without constraints.

User-friendliness is another core characteristic of these printers. The CBM-290 series includes features such as an easy paper-loading mechanism that minimizes downtime during paper changes. The printers come with a built-in power supply unit, streamlining setup and reducing clutter, making them ideal for space-constrained retail environments.

Connectivity is paramount in modern POS systems, and both the CBM-290 and CBM-291 offer a range of connectivity options. They support USB, Serial, and Ethernet connections, providing flexibility in how they integrate with existing systems. The CBM-291 takes this a step further by incorporating Bluetooth connectivity, which enables wireless printing capabilities, enhancing operational convenience.

Durability is a key aspect of the CBM-290 series. Built to withstand the rigors of daily use, these printers feature a rugged design that ensures longevity and reliability. This reliability is vital in minimizing maintenance costs and maximizing uptime, which is essential for any business reliant on consistent transaction processing.

In summary, the Citizen Systems CBM-290 and CBM-291 thermal printers are exemplary products in the POS printing market. Their combination of speed, quality, versatility, and durability makes them an excellent choice for retailers and hospitality businesses aiming to enhance their service efficiency while maintaining high standards of quality in their printed materials.
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