Asarto replacement ribbon tape for Oki ML5520/ML5590/ML5591/5521 — black

Asarto replacement ribbon tape in black is designed for use with selected Oki impact printers. It is compatible with models ML5520, ML5590, ML5591 and 5521 and intended for printing on continuous forms or multipart stationery where an impact ribbon cartridge is required. The ribbon supplies consistent dark text and numeric output suitable for administrative, retail, and light industrial printing tasks.

Advantages

This replacement ribbon tape provides reliable, uniform print density across its working life and is supplied pre-wound in a cartridge format for straightforward installation. The black ink formulation is optimized for clear alphanumeric characters on standard paper and multi-part forms. The product is intended as a direct-fit alternative for the specified Oki printers, allowing continued use of existing impact printing workflows without modification.

Suitable for

• Printing invoices, receipts and accounting documents on continuous paper
• Output on multipart carbon-copy forms for administrative records
• Retail point-of-sale printers using specified Oki impact models
• Light industrial environments requiring durable, legible text on labels or job tickets

Key specifications

• Color: black
• Compatibility: Oki ML5520, ML5590, ML5591 and 5521 impact printers
• Format: ribbon tape in cartridge form for impact printing
• Intended media: continuous forms and multipart stationery
• Typical use: text and numeric output for office, retail and industrial applications

How to use

Turn off the printer power before replacing the ribbon cartridge. Open the printer cover, remove the empty or worn cartridge according to the printer manufacturer’s guidance, and insert the Asarto ribbon tape ensuring correct alignment with print head and spindles. Advance the ribbon slightly if needed to remove slack, then close the cover and restore power. Perform a test print to verify correct installation and adjust printer settings for density if available.

Usage recommendations

Store spare cartridges in a cool, dry place away from direct sunlight and excessive heat to preserve ink performance. For best results use the ribbon with the compatible Oki models listed and replace the ribbon when print density diminishes to maintain legibility on multipart forms.