How To Replace The Blackwing Pen Ink Cartridge

Written by: Kaleena Quintero

Published on January 19, 2026

Last updated on March 6, 2026

Time to read 1 min

Learn how to replace your Blackwing Pen cartridge, and find out which cartridges are compatible. Follow along below for step-by-step instructions with detailed photos.

Step 1: Remove the Magnetic Cap

Pull the magnetic cap away from the top of the pen to remove it. You should feel a slight pull from the magnet, but it should release with ease.

Woman holding a Blackwing black ink pen over a wooden desk with stationery accessories in the background

Step 2: Unscrew the Clicker Mechanism

Gently twist the clicker mechanism counterclockwise until it is detached from the cartridge and set it aside. It helps to keep all removed pieces in order for easier reassembly.

Hands removing the magnetic pen cap from a Blackwing pen on a wooden stationary desk

Step 3: Remove the Old Cartridge

Tilt the pen to release the cartridge from the body.

image of hands holding a Blackwing pen showing its black barrel and ink cartridge sliding out on a wooden desk

Step 4: Remove the Spring

Carefully remove the spring from the old cartridge and set it aside.

image of hands disassembling a Blackwing pen showing the internal spring mechanism and ink refill on an aesthetic wooden desk

Step 5: Attach the Spring to the New Cartridge

Slide the smaller end of the spring onto the new ink cartridge first. If the pen isn't writing, double-check this step. Using the larger end first is a common issue.

Close-up of hands holding the spring and ink refill from the Blackwing pen

Step 6: Insert the New Cartridge

Place the new cartridge back into the pen with the rollerball tip first. Make sure the spring is correctly positioned (See Step 5).

Blackwing pen body held separately from its Schmidt capless rollerball refill on a wooden desk

Step 7: Reattach the Clicker Mechanism

Gently twist the clicker mechanism back onto the pen clockwise until snug.

Step 8: Put the Cap Back On

Bring the magnetic cap close to the top of the Blackwing Pen and allow it to snap back into place on its own.

image of an overhead view of hands removing the cap from a Blackwing pen on a wooden desk surrounded by stationery accessories.

Your pen should now be refilled and ready to go. You can replace the cartridge with any capless roller cartridge. The Blackwing Pen refills are coming soon! Order your first Blackwing Pen here!

ORDER NOW