Pilot Namiki Fountain Pen Ink Refill - Blue Black - 12 Cartridges

These cartridges are specifically designed for Pilot Namiki fountain pens. Compatibility with other Pilot pen lines may vary; please check your pen's specifications or consult Pilot's official resources.

The lifespan of a cartridge depends on your writing frequency and style. For average daily use, one cartridge can last several weeks to a few months.

These are designed as direct replacement cartridges and are not compatible with standard bottled ink converters. For bottled ink, you would need a separate converter compatible with your Pilot Namiki pen.

Blue-black ink is a darker, more muted shade than standard blue, often with a hint of grey or black. It offers a more formal and sophisticated appearance.

Store unused cartridges in their original packaging in a cool, dry place, away from direct sunlight and extreme temperatures, to maintain ink quality.

When stored properly, Pilot ink cartridges generally have a long shelf life, often several years. However, it's best to use them within 2-3 years for optimal performance.

Ensure the cartridge is properly seated. Gently tap the pen nib-down on a clean surface or briefly prime the feed by lightly squeezing the section (if applicable to your pen model). Check that the pen's air hole is not blocked.

The nib might be dry. Ensure the cartridge is full and properly connected. Clean the nib and feed if there's any blockage. Try writing on a different paper type.

This can sometimes occur due to excessive ink flow or moisture on the paper. Allow the ink to dry fully before handling. Ensure the nib is clean and not damaged.