# Ribbon tape LAMBDA for OKI 5520/5521/5590/5591 (model L-OK5520) — black, 4 million characters

**URL:** https://aio.lv/en/product--lambda-l-ok5520--240194
**Data updated:** 2026-03-07 10:51 (EET)
**Category:** Printer Ribbons
**Manufacturer:** LAMBDA
**Manufacturer code:** L-OK5520
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lambda-l-ok5520--240194

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

Replacement black ribbon tape LAMBDA L-OK5520 compatible with OKI models 5520, 5521, 5590 and 5591. Designed for dot matrix/impact printers, the tape provides up to 4 million printable characters. Suited for continuous high-volume printing tasks such as invoices, receipts, reports and industrial documents where long life and reliable contrast are required.

## Long description

Replacement black ribbon tape LAMBDA L-OK5520 for OKI 5520, 5521, 5590 and 5591 dot matrix/impact printers. This ribbon tape is designed to deliver up to 4 million printable characters, offering long service life and consistent black contrast for high-volume, continuous printing tasks such as invoices, receipts, reports and industrial forms. The tape is compatible with the specified OKI models and fits standard cartridge mounts for those printers, providing a straightforward replacement option to restore clear, legible output.
Advantages
The ribbon provides extended durability with up to 4 million characters, reducing the frequency of replacements and downtime. It delivers stable black print density across the ribbon’s lifetime, ensuring readable text and reliable contrast on multi-part forms and plain paper. The tape is manufactured for compatibility with the listed OKI impact printers and is packaged to simplify installation and handling.
Suitable for
 High-volume invoice and receipts printing
 Accounting and financial reports generated on dot matrix printers
 Multi-part industrial or logistics forms requiring carbon copy capability
 Point-of-sale and back-office continuous stationery print jobs
Key specifications
 Color: Black
 Estimated yield: up to 4,000,000 printable characters
 Printer type: Dot matrix / impact printers
 Compatibility: OKI 5520, 5521, 5590, 5591 models
 Form factor: Ribbon tape suited for standard cartridge mounts of listed printers
How to use
Turn off the printer and open the ribbon access cover according to the printer manual. Remove the spent ribbon cartridge and install the LAMBDA ribbon tape into the cartridge slot, aligning the ribbon with the print head path and ensuring correct tension. Close the cover and run a test print to confirm proper installation and print quality. Follow the printer manufacturer’s guidelines for handling and disposal of used ribbon material.
Usage recommendations
For best results, use the ribbon tape in environments within the printer’s recommended temperature and humidity ranges and store spare ribbons in a cool, dry place away from direct sunlight. Replace the ribbon when print density decreases or characters begin to fade to maintain document legibility, especially on multi-part forms.

## FAQ

### How much does the LAMBDA ribbon for OKI 5520/5521/5590/5591 L-OK5520 cost, and is it available for purchase?

The price is 8.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 26.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All LAMBDA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized LAMBDA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/240194/277574_large.webp