OKI ML 1190 Dot Matrix Black & White Printer

Overview

The OKI ML‑1190 Dot Matrix Black & White Printer is a robust, high‑performance workstation printer designed for demanding office and industrial environments. With its 24‑pin print head, it delivers crisp, reliable text and barcode output on continuous paper, envelopes, labels, and plain sheets.

Key Technical Specifications

• Print Technology: 24‑pin dot matrix (art needle) with a maximum speed of 333 characters per second in draft mode and 250 cps in normal mode.
• Resolution: 360 × 360 DPI, enabling detailed line art and high‑quality text.
• Print Head Life: Up to 200 million characters before replacement, ensuring long‑term reliability.
• Media Compatibility: Continuous paper widths from 76.2 mm to 254 mm; also accepts envelopes and labels.
• Buffer Capacity: 128 KB, allowing smooth handling of large print jobs without stalling.
• Memory: Built‑in 64 KB RAM for efficient processing.
• Power Consumption: 41 W during operation, 1.6 W in standby; meets Energy Star requirements.
• Operating Temperature: 5 °C to 35 °C (ambient), with storage tolerance from –10 °C to 50 °C.
• Humidity Range: 20–80 % during operation, 5–95 % for storage.
• Noise Level: 53 dB, suitable for office and production line use.
• Connectivity: Parallel, RS‑232C (serial), RS‑422, and USB 2.0 interfaces; supports standard Windows operating systems.
• Supported Page Description Languages: Epson ESC/P2, IBM ProPrinter (AGM & PPR).
• Built‑in Barcode Support: 1D barcodes including Code 39, Code 128, Codabar Library, EAN‑13, EAN‑8, POSTNET, UPC‑A, and UPC‑E.

Design & Build Quality

The printer’s chassis measures 349 mm in width, 232 mm in depth, and 150 mm in height, weighing only 4.2 kg. Its compact footprint allows easy placement on desks or workbenches, while the sturdy construction ensures durability under continuous use.

Printing Performance

The 24‑pin print head strikes a balance between speed and precision. With 10–20 characters per inch spacing options (10, 12, 15, 17.1, 20 cpi), users can tailor output for readability or compactness. The printer supports double‑height, double‑width, bold, enhanced, italic, subscript, superscript, and underline styles, making it versatile for forms, invoices, and labels.

Media Handling

The ML‑1190 features a tractor feed and an emulsion push mechanism, ensuring accurate alignment on continuous rolls. The media width range of 76.2 mm to 254 mm accommodates standard envelopes, label sheets, and plain paper. Minimum media size is 76.2 mm × 76.2 mm.

Reliability & Maintenance

With an average time between failures of 10,000 hours, the printer offers dependable operation for high‑volume environments. The print head’s longevity of 200 million characters reduces downtime and replacement costs. Standard maintenance includes periodic cleaning of the print head and ribbon replacement as needed.

Energy Efficiency

The OKI ML‑1190 is Energy Star certified, consuming only 41 W during active printing and dropping to 1.6 W when idle. This low power profile contributes to reduced operating costs and aligns with modern sustainability standards.

Software & Driver Support

Drivers are available for Windows, supporting both Epson ESC/P2 and IBM ProPrinter command sets. The printer’s compatibility with standard page description languages simplifies integration into existing workflows and allows use of familiar printing software.

Applications

• Invoice and receipt generation in retail and hospitality settings.
• Label creation for logistics, warehousing, and manufacturing.
• Form printing for government, healthcare, and education institutions.
• Barcode printing for inventory management and point‑of‑sale systems.

Conclusion

The OKI ML‑1190 Dot Matrix Black & White Printer combines high speed, excellent print quality, and durable construction in a compact package. Its extensive media support, built‑in barcode capabilities, and energy‑efficient operation make it an ideal choice for businesses that require reliable, cost‑effective printing across a variety of document types.