Wireless communication device

A wireless communication device comprising:

• a conveyance portion configured to convey a backing sheet having a long shape along a conveyance path with a lengthwise direction of the backing sheet as a conveyance direction, the backing sheet on which a plurality of labels, each provided with a wireless tag, being adhered with intervals in the lengthwise direction of the backing sheet;
• a sensor disposed facing the conveyance path in an intersecting direction and configured to detect an end portion of the label, the intersecting direction intersecting a width direction of the backing sheet conveyed by the conveyance portion and intersecting the conveyance direction;
• a communication portion disposed facing the conveyance path in the intersecting direction, and provided with an antenna configured to perform wireless communication with the wireless tag;
• a processor;
• and
• a memory storing computer-readable instructions that, when executed by the processor, instruct the processor to perform processes comprising:
• detecting, using the sensor, an end portion on an upstream side of the label, while conveying the backing sheet in the conveyance direction using the conveyance portion, the label being on a downstream side, in the conveyance direction, of a target label and being adhered at a position adjacent to the target label, and the target label being, of the plurality of labels, a label that is a target of communication by the communication portion;
• and
• performing the wireless communication with the target label, using the communication portion, when the backing sheet is conveyed by a predetermined amount in the conveyance direction by the conveyance portion, wherein
• after the end portion on the upstream side in the conveyance direction of a chosen one of the labels, of the plurality of labels, is detected by the sensor, the predetermined amount is decided based on a communication state, between the communication portion and the wireless tag, detected at each of a plurality of positions when the backing sheet is sequentially conveyed to the plurality of positions in the conveyance direction using the conveyance portion, and
• when the sensor is seen in the intersecting direction, the sensor is disposed, with respect to the antenna, between a first end and a second end of the antenna in the conveyance direction.