OKI MICROLINE 790 PLUS 24 PIN DOT MATRIX PRINTER #1 AC 220-240V, 50/60 HZ, 0.7A
The OKI Microline 790 Plus is a robust, business-grade 24-pin dot matrix printer designed for high-volume, heavy-duty printing tasks. Perfect for generating multi-part forms, invoices, shipping labels, and reports on continuous stationery. Its reliable impact printing mechanism and standard 220-240V power make it an ideal workhorse for logistics, warehousing, manufacturing, and accounting departments.
Key Features & Benefits
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24-Pin Dot Matrix Print Head: Delivers higher quality print output compared to 9-pin models, with better character definition and graphics, while maintaining the speed and reliability of impact printing.
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Heavy-Duty Duty Cycle: Built for high-volume environments. This printer is engineered to handle thousands of pages per month, ensuring long-term reliability in demanding business settings.
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Ideal for Multi-Part Forms: The impact printing technology allows you to print on multi-part carbonless forms (like 3-part or 4-part forms) simultaneously, which is essential for invoices, purchase orders, and delivery notes.
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Continuous Paper Feeding: Supports tractor-fed continuous paper (fanfold) and single sheets, eliminating the need to frequently reload paper and maximizing productivity for batch printing jobs.
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Standard Parallel Interface: Features a Centronics-style parallel port for simple and direct connectivity to legacy systems, PCs, and servers.
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Wide Carriage Option (Likely Available): Many models in this series came in a wide carriage version, capable of handling larger paper sizes like 11″ x 14″ or A3, perfect for spreadsheets and wide formats.
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Power Specifications: Designed for European and international markets, operating on AC 220-240V at 50/60 Hz with a current of 0.7A.
Technical Specifications
| Category | Specification | |
|---|---|---|
| Printer Type | 24-Wire Dot Matrix Impact Printer | |
| Print Speed | High speed (Approx. ~300 characters per second in draft mode, model dependent) | |
| Paper Handling | Tractor Feed (Front & Rear), Friction Feed for single sheets | |
| Max Paper Width | Standard: 9.5″ / 241mm | Wide Carriage: 13.2″ / 336mm (Confirm specific model) |
| Interfaces | Standard Centronics Parallel Interface | |
| Power Supply | AC 220-240V, 50/60 Hz | |
| Power Consumption | Approx. 0.7A | |
| Emulations | OKI proprietary, often compatible with IBM Proprinter XL/Epson FX | |
| Included | Printer, Power Cable, Documentation (varies by seller) |
| Printing Method | Serial Impact Dot Matrix Method |
|---|---|
| Print Head | 24 Pin |
| Dot Wire Diameter | 0.2 mm |
| Print Direction | Bidirectional/Unidirectional printing, Short line-seeking printing |
| Graphic Resolution | Max. 360(H) x 360(V) dpi |
| Print Speed | High Speed Draft : 420 cps, Utility : 315 cps, Letter Quality : 105 cps |
| Line Feed Pitch | 4.23mm (1/6 “), 3.18mm (1/8 “), n x 0.42mm(n/60 “) (n=0-127), n x 0.35mm(n/72 “) (n=1-85), n x 0.14mm(n/180 “) (n=0-255), n x 0.12mm(n/216 “) (n=0-255), n x 0.07mm(n/360 “) (n=0-255) |
| Feed Speed | 4.5 inches per second |
| Feed Rate | 4.23mm(1/6”) line feed: Approx. 46 milliseconds |
| Paper Route | Tractor feeder (Rear), Tractor feeder (Bottom), Manual (Top), Roll paper stand, Cut sheet feeder (Rear) |
| Character Pitch | High Speed Draft : 10.0 cpi, 12.0 cpi Utility : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi Letter Quality : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi, Propotional |
| Printing Width | 80 characters/line at ANK 10 cpi |
| Interface | IEEE1284-1994 Bi-directional Parallel, USB 2.0 (Full Speed), (Optional) 100BASE-TX/10BASE-T, (Optional) RS-232C (25pin) |
| Emulation | ESC/P2 emulation, IBM ProPrinter emulation, IBM AGM emulation |
| Supported OS (Click here for latest OS) | Windows 7, Windows 7 x64, Windows Vista, Windows Vista x64, Windows Server 2008 R2, Windows Server 2008, Windows Server 2008 x64, Windows Server 2003, Windows Server 2003 x64 |
| Receive Buffer | Max. 128KB |
| Resident Font | Utility, LQ Gothic, LQ Roman, LQ Courier, LQ Swiss, LQ Prestige, LQ Orator, LQ Swiss Bold, Scalable Roman, Scalable Courier, Scalable Swiss, High Speed Draft, OCR-A, OCR-B |
| Font Style | Double Width, Double Height, Enhanced, Emphasized, Bold, Italics, Over score, Outline, Shadow, Underline |
| 1-D Barcode | UPC-A, UPC-E, EAN8, EAN13, Code39, Interleaved 2 of 5 (ITF), Code128, POSTNET, Codabar (NW-7), Industrial 2 of 5, Matrix 2 of 5 |
| Paper Type | Continuous paper, Continuous copying paper, Cut sheet, Card, Envelope, Label |
| Paper Weight Adjustment | Manual |
| Paper Size | Continuous paper: Width 76.2-254.0mm x Length 76.2-355.6mm Single part paper: Width 99.1-216.0mm x Length 99.1-356.0mm Multi part paper: Width 76.2-254.0mm x Length 76.2-355.6mm |
| Paper Weight | Continuous paper : 45 – 90 gsm Single part paper : 45 – 90 gsm Multi part paper : 35 – 40 gsm |
| Copy Capability | Normal print mode: original + 4sheets(Total Thickness < 0.36mm) |
| Dimensions(WxDxH) | 398 x 345 x 153 mm |
| Operating Environment | Operating: 5 – 35 °C, 20 – 80 %RH Storage: -10 – 50 °C, 5 – 95 %RH No condensation |
| Power Source | Single phase 220 – 240 VAC ±10%, 50/60 Hz, 0.7A |
| Power Consumption | Operating: Max. -W (ISO10561 (Utility, Range1) Printing Approx. 60W) Power Save: < 1.7W |
| Noise Level | Operating :Approx. 56 dBA Quiet Mode: < 52 dBA |
| MTBF(Mean Time Before Failure) | 20,000 hours |
| Ribbon Life | Black : 4 million characters |
| Print Head Life | Approx. 300 million strokes/ pin |























