Sheet conveying apparatus and image forming apparatus
First Claim
Patent Images
1. A sheet conveying apparatus comprising:
- a communication device, which performs communications with an RFID tag attached to a sheet material passing through a conveyance path; and
a communication range restricting member, which restricts a communication range between the communication device and the RFID tag;
wherein the communication range restricting member comprises a shield box disposed around the communication device;
wherein the shield box comprises a conductive member having an opening formed at a surface of the communication device which faces to the conveyance path; and
wherein a maximum communicable distance, which is a distance in a sheet material conveyance direction within the communication range between the communication device and the RFID tag, is smaller than an interval between each sheet material to be sequentially conveyed onto the conveyance path.
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Abstract
The present invention relates to a sheet conveying apparatus comprising a communication device, which performs communications with an RFID tag attached to a sheet material passing through a conveyance path, wherein a maximum communicable distance between the communication device and the RFID tag on the conveyance path is smaller than a sum of an interval between sheet materials to be sequentially conveyed onto the conveyance path and a length of the sheet material in a conveyance direction.
18 Citations
12 Claims
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1. A sheet conveying apparatus comprising:
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a communication device, which performs communications with an RFID tag attached to a sheet material passing through a conveyance path; and a communication range restricting member, which restricts a communication range between the communication device and the RFID tag; wherein the communication range restricting member comprises a shield box disposed around the communication device; wherein the shield box comprises a conductive member having an opening formed at a surface of the communication device which faces to the conveyance path; and wherein a maximum communicable distance, which is a distance in a sheet material conveyance direction within the communication range between the communication device and the RFID tag, is smaller than an interval between each sheet material to be sequentially conveyed onto the conveyance path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An image forming apparatus comprising:
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an image formation device; and a sheet conveying device, which conveys a sheet material to the image formation device through a conveyance path; a communication device, which performs communications with an RFID tag attached to a sheet material passing through a conveyance path; and a communication range restricting member, which restricts a communication range between the communication device and the RFID tag; wherein the communication range restricting member comprises a shield box disposed around the communication device; wherein the shield box comprises a conductive member having an opening formed at a surface of the communication device which faces to the conveyance path; and wherein the maximum communicable distance, which is a distance in a sheet material conveyance direction within the communication range between the communication device and the RFID tag, is smaller than an interval between each sheet material to be sequentially conveyed onto the conveyance path.
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Specification