Dot-matrix printer designed for heavy-duty forms and label work, delivering steady impact printing for business use. Clear multi-part output keeps tills and packing stations running smoothly. Is OKI Microline ML321 Dot Matrix Printer the right choice for operations that need fast, multipart and wide-format printing?
⚡ At a Glance
- • Print Performance: Consistent impact printing suited to continuous forms and label runs
- • Best for: Small businesses, retail tills and warehouses needing reliable multi-part output
- • Not ideal for: Users who need high-resolution photographic prints
9-pin impact printing handles continuous forms and labels reliably. Capable of multi-part output for original plus four copies.
Fast throughput - with 360 characters per second print speed
Print mechanism achieves up to 360 characters per second through rapid impact strokes of the 9-pin head. The fast character-per-second rate keeps line printing brisk for long, continuous jobs.
High-speed output reduces queueing at busy tills and packing stations, keeping documents and labels flowing through the workflow.
Long-life operation - with Oki's high-durability 9-pin print head
Oki's unique high-durability 9-pin print head uses reinforced components to tolerate heavy-duty, repetitive impact printing. Design focuses on sustained duty cycles common in commercial environments.
Extended service life lowers downtime and maintenance frequency, making the printer dependable for high-volume environments.
Reliable multi-part handling - with original plus four copy capability
Impact printing places clear impressions through multiple sheets simultaneously, allowing an original and up to four carbonless copies to be produced in a single pass. Paper path and platen pressure are tuned for strong, repeatable results.
Capture multiple copies of invoices, receipts or delivery notes in one pass, removing the need for manual duplication and speeding administrative tasks.
✨ The 4 Key Reasons for OKI Microline ML321 Dot Matrix Printer
- 136-column format – Allows wider print layouts and longer lines for detailed listings
- 360 characters per second – Keeps high-volume print jobs moving without bottlenecks
- Original + 4 copy handling – Produces multiple document copies in a single pass for admin efficiency
- High-durability 9-pin print head – Reduces wear and maintenance in continuous-use environments
📋 Technical Details at a Glance
- Category: Dot-matrix printer
- Brand: OKI
- Model: Microline ML321 Elite
- Print technology: 9-pin dot matrix
- Column width: 136-column
❓ Frequently Asked Questions
Q: Can the printer handle multi-part forms?
A: Yes, the printer can produce an original plus four copies in a single pass using impact printing.
Q: How fast does the printer operate?
A: Prints at up to 360 characters per second for steady throughput on line-based jobs.
Q: Is the print head designed for heavy use?
A: Yes, Oki's high-durability 9-pin print head is specified for sustained, heavy-duty impact printing.
🏆 Our Verdict
Suited to small businesses, retail outlets and warehouses that require durable, continuous printing and clear multi-part receipts. Rugged 9-pin impact printing combined with 360 characters-per-second throughput and original-plus-four copy handling makes for reliable high-volume form work. Durability and multi-part capability deliver strong long-term value for busy operations.
