| 摘要 |
Provided is an ink detecting module (100) that detects the discharge state of a liquid droplet by receiving a light beam emitted to a flying path of the liquid droplet discharged from a nozzle row (103) of an inkjet printer, the ink detecting module including: a light emitting unit (104) that emits a light beam; a light receiving unit (105) that receives the emitted light beam; and a module base (108) that integrally supports the light emitting unit (104) and the light receiving unit (105), the module base (108) including: positioning pins (106, 107) that are engaged with the inkjet printer and determine the fastening position in the inkjet printer; and a fastening unit that is fastened to the inkjet printer, in which, in the state of being fastened to the inkjet printer, only the positioning pins (106, 107) and the fastening unit are in contact with the inkjet printer.
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