Epson C I - 4 0 7 0, C I - 4 0 8 0 user manual Transmission Protocol Description, Timing

Models: C I - 4 0 7 0 C I - 4 0 8 0

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Appendix A System Interface Description

2.2Transmission Protocol Description

After Power-ON the PE (Paper Empty) signal is set to low level and the SELECT and FAULT¯¯¯¯¯signals are set to high level.

The printer is now ON-LINEand ready to receive data.

Timing

The host sets a print/control character to the 8 data lines.

After a time delay of a minimum of 0.5 µs, the host sends a STROBE¯¯¯¯¯¯ pulse of a minimum of 0.5 µs. When the data byte is accepted into the interface buffer the printer transmits a BUSY signal and an ¯¯¯¯ACKN pulse.

The ¯¯¯¯ACKN pulse informs the host that the data has been received and that the printer is ready to receive new data.

If the interface buffer is full except for the last character the BUSY is not reset in order to stop the data transfer from the host. The BUSY signal is only reset if space is available in the interface buffer for a minimum of 512 characters.

While the printer is offline, or a serial interface is active BUSY remains high and no ¯¯¯¯ACKN is sent until the printer enters online state or the serial interface is deselected.

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Epson C I - 4 0 7 0, C I - 4 0 8 0 user manual Transmission Protocol Description, Timing

C I - 4 0 7 0, C I - 4 0 8 0 specifications

Epson, a leading player in the printing technology industry, has unveiled two remarkable printer models: the Epson C I - 4 0 8 0 and the C I - 4 0 7 0. Both models are designed to cater to businesses and professionals seeking high-quality printing solutions with impressive features and advanced technologies.

The Epson C I - 4 0 8 0 is a versatile printer known for its speed and reliability. It offers a high-resolution printing capability that delivers sharp, vibrant colors and crisp text. Equipped with advanced PrecisionCore technology, this printer ensures consistent output quality while maximizing productivity. The C I - 4 0 8 0 supports various media types and sizes, making it ideal for a wide range of printing applications, from office documents to marketing materials.

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On the other hand, the Epson C I - 4 0 7 0 is a slightly more compact model that emphasizes efficiency and cost-effectiveness. It retains many of the high-performance characteristics of its counterpart while being better suited for smaller office spaces or individual professionals. The C I - 4 0 7 0 features economical ink usage, which not only reduces operational costs but also minimizes environmental impact—a significant consideration for modern businesses.

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In summary, the Epson C I - 4 0 8 0 and C I - 4 0 7 0 are powerful, feature-rich printers that cater to modern business needs, enhancing productivity while offering quality and reliability. Their advanced technologies and user-friendly designs make them a valuable addition to any workspace.