摘要 |
<p>An ink cartridge includes: a casing; a pyroelectric portion; a heat conductor; and an electrical interface. The casing is configured to store ink therein. The casing has a bottom wall. The pyroelectric portion is configured to output an electrical signal. The heat conductor is configured to conduct heat to the ink and the pyroelectric portion. The heat conductor has at least a portion in contact with or disposed adjacent to the bottom wall. The electrical interface is configured to output an electrical signal outputted from the pyroelectric portion.</p> |