Chapter 4— Troubleshooting

Preventing Data Loss

Several problems can cause data loss or communication problems on the printer. Data loss can result in printing errors or missing field data.

Your printer is a serial ASCII device. It communicates with the host through an ASCII serial communication I/O port. Hardware handshaking involves the use of a hardware wire. Software handshaking involves a two- way datalink between the devices. The two devices communicate with each other without losing data through the use of handshaking. The printer sends both forms of handshaking simultaneously when the printer’s input buffer is full. Any loss of data can cause printing errors.

Hardware handshaking uses pin 11 or pin 20 of the RS-232 interface to control data flow. When the printer is using Intermec Standard protocol, it holds pins 11 and 20 high when the printer is ready to receive data. The printer holds the pins low when the printer is in one of the following conditions:

Buffer full

Ribbon fault

No label stock

Label at strip bar

Your printer uses XON/XOFF protocol for software handshaking. When the input buffer is full, the printer transmits an XOFF character. The XOFF character alerts the host to the fact that the printer buffer is full and cannot receive any more data. When the printer is ready to receive more data, it sends the XON character.

The following procedure lists things to check to ensure that your printer and host system are communicating properly.

To check for communication problems

1Check the cabling from the printer to the host system.

2Check the interfacing of the devices that are communicating with the printer.

3Check the printer for proper electrical operation of the I/O port.

4Test to see that the host system is not overrunning the printer’s input buffers.

5Check to see that the data string being sent to the printer contains the correct information.

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EasyCoder 3400e Bar Code Label Printer User’s Manual

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Genicom 3400e user manual Preventing Data Loss, To check for communication problems

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.