How To: Clean A Fountain
Pen
Eventually when you collect fountain pens you will need to clean
them because you need to change ink colors, let ink dry inside so
much it will not write correctly, or you get a pen with dried ink
inside. There are lots of ways to clean them out, the method I will
show you is the one I use that has worked extremely well for me over
the years.
Most pens made today are cartridge and/or converter pens. The
cleaning method works well with other types of pens too. The first
step is to disassemble the pen like so:

Once the pen is apart to this degree you need to remove the
converter. There are two general types of converters, screw in and
push in. You can really mess up a converter that is a screw in by
yanking it out thinking it is a push in. The best way is to treat
all converters as screw in and unscrew it counter clockwise while
pulling gently. Once the converter is out rinse the nib off, rinse
the converter out, and then allow water to flow through the nib and
feed like such:

This gets all the liquid ink out to get ready for the next step. To
really clean the pen out you need an ultrasonic cleaner. This does
not have to be an expensive one, the one I use I picked up for less
than $100 at Brookstone and it works wonderfully for this:

Fill the ultrasonic cleaner to the fill line with regular water,
then find a glass or bowl to place inside, I use pyrex graduated
cups. Fill the cup up enough to cover the nib section and converter
(if you have one) still disassembled, I like to use purified water,
and for stubborn pens I will put a drop or two of ammonia (clear,
not the lemon or pine scented) in the cup. That setup should look
like this:

Note that the nib of the pen is not on the bottom of the cup,
never place the nib down so that it is on the
bottom as this can damage the nib tipping. Let this run a few
minutes, remove the parts and dry well, do not use a hairdryer or
anything that generates heat or large amounts of air pressure. Fill
up your pen and give it a try!
This same method works with other filling systems as well although
you need a way to suspend the pen in the liquid without the nib tip
touching anything as you do not want to submerge lever, crescent,
button, or piston fillers as the water will get into places where it
should not go.
More warnings! Never try this with Casein pens, be careful with hard
rubber, never add chemicals like ammonia with pens made of anything
other than plastic or metal, never submerge parts that you do not
have to (caps etc) unless you have experimented with junkers first
to see what will happen.
Good luck!
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