I've been drawing with Copic markers since 2017. In that time, I've ruined four markers, wasted roughly $150 on refill ink that went into the wrong marker or never should've been bought, and stained a desk that still has a permanent orange reminder of my worst refill session.

This is the checklist I wish I'd had back then. If a Copic marker is starting to look light, drying out, or taking two passes to lay down color that used to appear in one stroke, you don't need a brand-new marker. You need to refill it. Here's how to refill Copic markers without learning the expensive way — I already did that for you.

One note before the steps: if you're still weighing the Ohuhu vs Copic markers question, refillability is one of the biggest real-world differences between the two. Ohuhu makes solid budget markers — I've recommended them to students. But most of their lineup isn't designed for refills. Copic is. That's the feature this checklist is built around.

What You'll Need

  • Your Copic marker — Sketch, Ciao, or Classic
  • A bottle of Copic ink in the exact color
  • Flat-tip tweezers
  • Paper towels
  • Scrap paper for testing
  • Good lighting and about ten minutes

The ink is alcohol-based, permanent, and stains almost everything it touches. That isn't an exaggeration; it's the chair in my old studio.

Step 1: Check the Color Code — Out Loud

Copic markers print their color code on the barrel. Refill bottles use the same codes. You'd think this would be hard to screw up, and yet — September 2019, I grabbed a refill I'd swear was E31. I assumed the marker in my hand was E31 too. Except it wasn't. The marker was E33. Two warm sandy browns, nearly identical in dim evening light, and not the same once the ink's inside the marker.

I dropped probably fifteen drops into that marker before I thought to double-check. It's still in my collection today. It's still subtly the wrong shade, and I notice it every single time I use it.

So here's the stupid-sounding rule that will save you the most money in this entire article: put the marker and the ink bottle side by side, read both codes out loud, and don't start until they match. Reading out loud forces your brain to actually look instead of assuming.

Step 2: Set Up Your Workspace

Lay down paper towels, place the marker horizontally on top, and open the ink bottle with its nozzle pointing down. If you have a desk you care about, cover it, because one stray drop will become a permanent part of the furniture.

This step sounds like filler. It isn't. The worst refill messes I've made… they all happened when I decided I could do it 'quickly' without any setup. You need both hands and a clean place to set parts down.

Step 3: Remove the Nib — Straight Out, Gently

Take the tweezers, grip the nib at the base where it meets the marker body, and pull straight out. Don't pull at an angle. If the nib resists, rock it side to side gently while you pull, and it'll release.

You only need to remove one nib to refill. I usually pull the chisel nib — the wider flat one — because it gives the ink nozzle a bigger opening. If the marker is completely dry, removing both nibs can help ink flow faster since air can escape. Either way, set the nibs on the paper towel so they don't roll off the desk.

Don't use your teeth or fingernails to pull nibs. The plastic collar around the nib opening can crack if you grip it wrong, and a cracked collar means a marker that will leak and never seal properly again.

Step 4: Drip Slowly, Watch the Reservoir

This is the step most tutorials get wrong. They show someone squeezing ink drops onto the tip of the marker and letting it soak in. That works, technically, but it's messy and hard to control.

The better method — and the one I now use every time — is direct: aim the dropper nozzle into the opening you created when you removed the nib. You'll see a fibrous core inside. That's the reservoir. That's where the ink needs to go.

Squeeze slowly. Drip in five or six drops. Wait 15 to 20 seconds for the ink to absorb. Repeat. Stop when the ink starts to pool on top of the reservoir and hasn't soaked in after about 30 seconds.

That stopping point is non-negotiable. Once the reservoir is saturated, extra ink doesn't make the marker juicier — it just leaks out and makes a mess. If your marker is only slightly dry, this might be ten drops total. If it's bone dry, it'll take a lot more. Let the reservoir tell you when to stop.

It took me three years and four ruined markers to understand something that seems obvious in retrospect: refilling isn't about how much ink you add. It's about how slowly you add it.

Step 5: Reassemble and Wait 10 Minutes

Push the nib back in with your fingers, straight in, until it seats flush. Wipe any ink off the outside. Cap the marker, lay it flat, and wait at least ten minutes.

You will want to test it immediately. Don't. The ink needs time to distribute through the reservoir and saturate the nib. Test too early and you'll get a dry-looking, patchy line and think you've failed. You haven't. You're just impatient — a lesson I've learned in approximately every context available.

Step 6: Swatch Test on Scrap Paper

After ten minutes, color a swatch on scrap paper. If the line looks slightly darker or wetter than usual, that's normal — the alcohol hasn't fully leveled out yet. Give it a day to settle.

If the line is still patchy after the wait, add two or three more drops and give it another five minutes. If it's still weak, the issue probably isn't ink level. It's the nib. Which leads me to the mistakes that cost me real money.

Three Refill Mistakes I Made So You Don't Have To

1. Refilling a marker with a worn-out nib

A frayed brush tip or a chisel edge that's lost its sharp corner won't be fixed by ink. I refilled a Sketch marker twice before realizing the nib itself was dead. Two rounds of ink wasted because I didn't want to swap a worn nib for a fresh one. False economy.

2. Using rubbing alcohol to 'revive' a dry marker

This tip shows up all over the internet. Alcohol markers use alcohol-based ink, so if a marker dries out, just add rubbing alcohol, right? No.

Copic ink contains dyes and binders that give it the right flow and blendability. Rubbing alcohol dilutes those. Once it's in the reservoir, it's in there for good. I tried it once on an old marker I didn't care about. The color turned watery, pale, and streaky. That marker never fully recovered.

3. Refilling markers you don't use

This one's less obvious. If you haven't touched a marker in six months, don't refill it just because you're in refill mode. Alcohol-based ink slowly evaporates even through a capped marker. A refilled marker that sits unused is just a future refill project. I have two teal-green markers I've refilled three times and used maybe four times in between. That's not maintenance. That's hoarding.

When NOT to Refill Your Markers

Let's be honest: refilling isn't always the right call.

  • The marker is physically damaged. Cracked barrel, cap that doesn't click shut, chewed-up nib collar. No refill fixes that.
  • You rarely use that color. If a marker gets used twice a year, a bottle of ink will likely evaporate before you get value from it. Buy a new marker next time instead.
  • You're just starting out with alcohol markers. If the choice is a few Copic markers versus a much larger set of Ohuhus for the same budget, the Ohuhus are the smarter call for a beginner. The lower entry price lets you learn without the pressure of a premium system.

The honest bottom line on the Copic vs Ohuhu comparison hasn't changed: Copic's price makes sense when you draw regularly and you actually use the refill system. If you draw occasionally, it's harder to justify — and that's fine. Buy what fits your habits.

One Small Habit That Makes Refills Last Longer

Store your markers flat. Nib-down lets ink pool in the cap, and nib-up makes the top dry out faster. Flat keeps the ink where it belongs. I switched to horizontal trays two years ago, and my markers stay consistent noticeably longer.

And refill before the marker goes completely dry. It's tempting to squeeze every last drop out of a marker, but the longer it runs on fumes, the more the alcohol content drops and the more the dye behavior drifts. I can't give you a scientific paper on it; I can only tell you that after eight years, the markers I top up early behave more consistently than the ones I rescue from the edge of death.

That's the whole checklist. Ten minutes, a little patience, and zero ruined markers. I wish someone had handed it to me in 2017.