Ribbon for Citizen dot matrix printers IR-91B — compatible with MD 910 / IDP 3110, black

Citizen IR-91B replacement ribbon is a black ink ribbon designed for dot matrix printers. It is compatible with Citizen MD 910 and IDP 3110 models and delivers consistent, standard-density printing suitable for impact printing tasks such as invoices, receipts and multi-part forms. The ribbon is intended for continuous operation in retail, warehouse or light industrial environments where reliable legible output from dot matrix mechanisms is required.

Advantages

The ribbon offers uniform black ink coverage formulated for impact printing heads, providing clear characters and consistent line quality across long print runs. Its design allows straightforward installation and tensioning in compatible ribbon cartridges, reducing downtime during replacement. Manufactured to fit the listed dot matrix mechanisms, it supports multi-part form printing without smudging and maintains stable performance during extended use.

Suitable for

• Printing invoices and receipts on dot matrix printers
• Continuous or multipart form printing in retail and warehousing
• Environments requiring reliable, long-run impact printing

Key specifications

• Ink colour: Black
• Compatibility: Designed for use with the specified dot matrix printer models (front-feed impact printers)
• Print type: Impact (dot matrix) printing
• Intended use: Single- and multi-part form printing, receipts, invoices
• Operating environment: Retail, warehouse, light industrial continuous printing

How to use

Turn the printer off or follow the manufacturer’s guidance for safe ribbon replacement. Open the printer cover to access the ribbon cartridge area, remove the spent ribbon carrier, and place the replacement ribbon in the cartridge cradle aligning it with the printhead path. Advance the ribbon slightly if required to ensure proper tension and alignment, then close the cover and perform a test print to confirm even ink transfer and correct positioning. Follow the printer’s maintenance guidelines for cleaning the printhead and platen to prolong ribbon and head life.

Usage recommendations

Store the ribbon in a cool, dry place away from direct sunlight and extreme temperatures to preserve ink characteristics. For best results, use with printers maintained according to the printer manufacturer’s service intervals and replace the ribbon once print density becomes weak or uneven.