Appendix C— Communications Reference

When you switch the printer online (and the input buffer is empty), pin 11/20 becomes “Ready” and it transmits a DC1.

Printer XON/XOFF Operation

# of Bytes Received

Online/Offline

Pin 11/20

Transmit

Do not care

Offline

Busy

DC3

 

 

 

 

768

Online

Busy

 

768 + each 15 thereafter

Online

Busy

DC3

 

 

 

 

Buffer Empty

Online

Ready

DC1 (if DC3 was sent)

 

 

 

 

XON/XOFF, No Status Protocol

This protocol is identical to XON/XOFF protocol except that status is not returned after each message received. However, status is still returned for the status request (<ENQ>) and the status dump (<VT>) commands.

Polling Mode D

Polling Mode D is a block transfer protocol that transmits data in blocks of up to 255 characters, including protocol overhead. For Polling Mode D, the host/concentrator is responsible for asking the printer for data it might have (polling) and requesting to send data to the printer (selecting). The blocks are framed with LRC characters for additional data integrity. Polling Mode D is normally used for point-to-point networks that connect the printer to an Intermec port concentrator (RS-232 or RS-422 are acceptable).

This protocol is the default setting for the printer. Return the protocol setting to Polling Mode D by setting the printer DIP switches to the factory default settings (9600, E, 7, 1).

Multi-Drop Protocol

Use Multi-Drop protocol to connect up to 32 devices to an Intermec controller on a four-wire RS-485 (two twisted pair). This protocol is similar to Polling Mode D except each device has a unique address (POL and SEL character). You must use an RS-485, which is automatically enabled when you enable Multi-Drop. Be sure to specify a unique address for the printer and verify that the baud rate is between 2,400 and 19,200.

User-Defined Protocol

The printer provides the capability to change protocol characters. However, users may not define their own protocol. You can substitute characters you want to use as protocol characters, but the rules for the chosen protocol do not change. The printer does not use any protocol characters that you replace with the NUL character. One table of protocol

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Genicom 3400e user manual XON/XOFF, No Status Protocol, Polling Mode D, Multi-Drop Protocol, User-Defined Protocol

3400e specifications

The Genicom 3400e is a robust and versatile printer designed primarily for high-volume environments, where efficiency and reliability are paramount. As part of the Genicom family of printers, the 3400e offers a range of features and technologies that cater to the needs of various industries, including corporate offices, logistics, and educational institutions.

One of the standout features of the Genicom 3400e is its impressive printing speed. Capable of producing up to 1,200 pages per hour, this printer significantly reduces wait times and enhances productivity. This speed is complemented by its advanced printing technology, which ensures high-quality output with sharp text and crisp graphics, making it suitable for printing documents ranging from simple reports to detailed presentations.

The Genicom 3400e employs dot matrix printing technology, recognized for its durability and low operational costs. Unlike laser printers that use toner, dot matrix printers utilize ink ribbons. This not only reduces the cost per page but also offers long-lasting performance for continuous printing tasks. The 3400e’s design incorporates a robust print head that can withstand rigorous use, making it an ideal choice for heavy-duty applications.

In terms of connectivity, the Genicom 3400e supports various interfaces, including parallel, serial, and USB, ensuring compatibility with numerous devices and systems. This flexibility allows businesses to integrate the printer into their existing setups without hassle. Moreover, it supports multiple paper sizes and types, enabling users to print invoices, labels, and reports seamlessly.

Another notable characteristic of the Genicom 3400e is its user-friendly interface. The printer is designed with ease of operation in mind, featuring intuitive controls and an LCD display that provides real-time information about the printer status, helping operators manage tasks efficiently.

Additionally, the printer boasts reliable performance with reduced downtime, thanks to its capability for continuous operation. Its sturdy construction and easy-to-replace components make maintenance straightforward, ensuring that businesses can rely on the Genicom 3400e for their printing needs without interruptions.

In summary, the Genicom 3400e is a powerful dot matrix printer that excels in high-volume printing scenarios, combining speed, reliability, and affordability. Its advanced features and user-centric design make it an excellent choice for organizations seeking efficient printing solutions that stand the test of time.