| 摘要 |
A manufacturing method of one embodiment of the present invention comprises the step of ejecting liquid resin through a resin supply hose connected to a containing tank to a coating device, and causing the coating device to apply the liquid resin to an optical fiber to form a coating layer. Before the step of forming the coating layer, this manufacturing method comprises the steps of: causing the liquid resin to be ejected through the resin supply hose to a cup which is different from the coating device, to measure an ejection amount of the liquid resin; and determining whether the measured ejection amount of the liquid resin is within an acceptable range or not. Then, the step of forming the coating layer is performed when it is determined, as a result, that the measured ejection amount of the liquid resin is within the acceptable range.
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