(When you are busy, you really have a bunch of paper on your head. ) The cause of paper jamming is the cause of the paper to absorb moisture and stick. (Remove Moisture Without Getting Your Papers Gone Out) Desiccant for copiers is a desiccant made of B type silica gel, which adjusts the humidity in the copier to about 60% or less. 4 x 3.5 oz (100 g) desiccant per copier 14.1 oz (400 g) (please install it in the skimmer of a tray of A4 and B5 or A3). If the paper gets clogged up, please play it all day in the sun. (If the refurbished sign changes to pink, please dry it in the sun. It can be used for about 1 year, so it is very economical; Material/Dimensions: B-shaped silica gel, 3.5 oz (100 g) x 4 pieces (Dimensions can be folded 1.2 x 9.8 inches (30 x 250 mm); How to use: Use 4 pieces per copier. Put it into the skimmer of the tray. If the 4 pieces do not fit separately, please separate them into 1-2 places. Comes with a reproduction sign that changes to blue when dried in the sun. Expiration Date: Approx. 1 year (Because it is adsorpant, it is effective for replacing as soon as the environment is too humid to the environment).