| 摘要 |
A multicolor pen comprises an attachable and detachable pen body. A plurality of control buttons and a screen are mounted on the periphery of the pen body. A refill, which is connected to a pen nib, is mounted at the front end of the pen body. A control circuit, a battery, and four independently mounted yellow, magenta, cyanine blue, and black ink cartridges are mounted on the inside of the pen body. The control buttons and the screen are electrically connected with the control circuit. The ink cartridges are connected with the refill via a flow control valve. By operation of the control buttons and confirming operation of the screen, the control circuit controls the flow control valve to mix up the inks stored in the four-color ink cartridges for forming various colors besides these four colors. Accordingly, the multicolor pen is provided with diversified and lively writing effect.
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