Epson LQ-350 Dot Matrix Printer, Impact Dot Matrix, 24 Pins, 80 Columns – USB Type B interface, Bidirectional Parallel, RS-232 – C11CC25002

Performance

The LQ-350 delivers much better print quality than traditional 9-pin dot matrix printers thanks to its 24-pin print head. Community discussions often describe the LQ series as the peak of dot-matrix print quality, producing sharper text and forms than 9-pin models.

It supports:

• Continuous tractor-fed paper
• Multipart forms
• Labels
• Envelopes
• Roll paper
• Carbon-copy documents

This makes it ideal for logistics, warehouses, hospitals, schools, banks, and accounting offices.

Connectivity

One of the LQ-350’s strengths is compatibility with both old and new systems:

• USB 2.0
• RS-232 Serial
• Bidirectional Parallel Port

This allows it to integrate with legacy accounting systems and industrial equipment that still require serial or parallel communication.

Running Costs

The printer is extremely economical:

• Ribbon yield of approximately 2.5 million characters
• Power consumption of only 1.3W in standby and about 22W while operating

For organizations printing invoices and forms daily, operating costs are very low compared to cartridge-based printers.

Pros

✅ Reliable 24-pin print mechanism
✅ Prints through multipart forms (original + 3 copies)
✅ USB, Serial, and Parallel connectivity
✅ Low power consumption
✅ Long-life ribbon
✅ Compact desktop design
✅ Excellent for continuous stationery and invoices
✅ Proven business reliability (10,000-hour MTBF)