erasable pens, highlighters or gel pens in your answers. Gel pens can’t be used because they don’t tend to scan well and can ...

It’s a major buzzkill when that happens. Luckily, you can avoid this annoying issue when you upgrade your regular old pen and paper to this smart pen and reusable notebook. All you need is the ...

Unbeknownst to the person signing the check, she says, the pen contained erasable ink. Security blog Scheiner on Security also reported on the erasable ink scam, sharing the story about a door-to ...

It is called the HeatVanish Pen and works by using heat sensitive ink that turns clear when hot. The pen is equipped with an electric heating element on the end which works as your rubber.