# US 11,027,938 B2 · Medium transport device and image forming apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,938 B2 - Document ID: US11027938B2 - Status: Granted - Kind: B2 - Application number: 16/387,559 - Filed: 2019-04-18 - Published: 2020-04-02 - Granted: 2021-06-08 - Earliest claimed: 2018-09-28 - Assignees: FUJIFILM Business Innovation Corp. - Applicants: Fuji Xerox Co., Ltd. - Inventors: Satoshi Watanabe; Kiminobu Tsutada; Masato Minagawa; Hiroshi Kawamoto; Riwako Miyauchi; Tomohiro Ueno - Web page: https://patentgrep.com/patent/US11027938B2 ## CPC - B65H 29/60: diverting the stream into alternative paths (B65H29/62 takes precedence) - G03G 15/6573: {Feeding path after the fixing point and up to the discharge tray or the finisher, e.g. special treatment of copy material to compensate for effects from the fixing} - B65H 5/06: by rollers {or balls, e.g. between rollers (transport by suction rollers B65H5/226)} - B65H 29/58: Article switches or diverters - B65H 85/00: Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once - B65H 2301/33312: forward reverse rollers pairs - B65H 2402/45: Doors - B65H 2403/511: involving cylindrical cam, i.e. cylinder with helical groove at its periphery - B65H 2404/632: Wedge member - B65H 2555/13: magnetic, e.g. induction motors - B65H 2601/11: Clearing faulty handling, e.g. jams - B65H 2801/06: Office-type machines, e.g. photocopiers - G03G 2215/00713: Lock related to feeding device - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract A medium transport device includes a transporting member, a medium offsetting member, a guide member, and an interlocking member. The guide member is located upstream of the transporting member in a medium transport direction. The guide member is movable between a first position, in which the guide member guides the medium toward the medium accommodating member, and a second position, in which the guide member guides the medium to a destination different from the medium accommodating member, to guide the medium. The interlocking member moves the guide member between the first position and the second position in conjunction with a movement of the medium offsetting member in a width direction of the medium offsetting member. ## Claims ### Claim 1 A medium transport device, comprising: a transporting member that transports a medium toward a medium accommodating member; a medium offsetting member that moves the transporting member in a medium width direction to transport the medium to the medium accommodating member at positions shifted in the medium width direction; a guide member that is located upstream of the transporting member in a medium transport direction, the guide member being movable between a first position, in which the guide member guides the medium toward the medium accommodating member, and a second position, in which the guide member guides the medium to a destination different from the medium accommodating member, to guide the medium; and an interlocking member that moves the guide member between the first position and the second position in conjunction with a movement of the medium offsetting member in a width direction of the medium offsetting member. ### Claim 2 (depends on 1) An image forming apparatus, comprising: an image forming member that forms an image on a medium; and the medium transport device according to claim 1 that transports a medium on which an image is formed by the image forming member. ### Claim 3 A medium transport device, comprising: a transporting member that transports a medium toward a medium accommodating member; a medium offsetting member that moves the transporting member in a medium width direction to transport the medium to the medium accommodating member at positions shifted in the medium width direction; a guide member that is located upstream of the transporting member in a medium transport direction, the guide member being movable between a first position, in which the guide member guides the medium toward the medium accommodating member, and a second position, in which the guide member guides the medium to a destination different from the medium accommodating member, to guide the medium; and an interlocking member that includes a first interlocking member disposed on the medium offsetting member, and a second interlocking member disposed on the guide member, the second interlocking member moving the guide member between the first position and the second position while being in contact with the first interlocking member in response to a movement of the medium offsetting member in a width direction of the medium offsetting member. ### Claim 4 (depends on 3) The medium transport device according to claim 3, wherein the second interlocking member extends from a first position to a second position in the medium width direction and guides the first interlocking member. ### Claim 5 (depends on 4) The medium transport device according to claim 4, wherein the guide member is rotatable between the first position and the second position about a rotation shaft, and wherein the second interlocking member is inclined further with respect to a circumferential direction of the rotation shaft as the second interlocking member extends further from a first position to a second position in the medium width direction. ### Claim 6 (depends on 5) The medium transport device according to claim 5, wherein, when the guide member is in the first position, the second interlocking member is in contact with the first interlocking member to restrict the guide member from moving toward the second position. ### Claim 7 (depends on 6) The medium transport device according to claim 6, wherein, the second interlocking member has a cut that allows the first interlocking member to pass therethrough in a direction in which a medium path is rendered open or in a direction in which the guide member moves away from the second position, when the guide member is in the first position. ### Claim 8 (depends on 4) The medium transport device according to claim 4, wherein, when the guide member is in the first position, the second interlocking member is in contact with the first interlocking member to restrict the guide member from moving toward the second position. ### Claim 9 (depends on 8) The medium transport device according to claim 8, wherein, the second interlocking member has a cut that allows the first interlocking member to pass therethrough in a direction in which a medium path is rendered open or in a direction in which the guide member moves away from the second position, when the guide member is in the first position. ### Claim 10 (depends on 3) The medium transport device according to claim 3, wherein the guide member is rotatable between the first position and the second position about a rotation shaft, and wherein the second interlocking member is inclined further with respect to a circumferential direction of the rotation shaft as the second interlocking member extends further from a first position to a second position in the medium width direction. ### Claim 11 (depends on 10) The medium transport device according to claim 10, wherein, when the guide member is in the first position, the second interlocking member is in contact with the first interlocking member to restrict the guide member from moving toward the second position. ### Claim 12 (depends on 11) The medium transport device according to claim 11, wherein, the second interlocking member has a cut that allows the first interlocking member to pass therethrough in a direction in which a medium path is rendered open or in a direction in which the guide member moves away from the second position, when the guide member is in the first position. ### Claim 13 (depends on 3) The medium transport device according to claim 3, wherein, when the guide member is in the first position, the second interlocking member is in contact with the first interlocking member to restrict the guide member from moving toward the second position. ### Claim 14 (depends on 13) The medium transport device according to claim 13, wherein, the second interlocking member has a cut that allows the first interlocking member to pass therethrough in a direction in which a medium path is rendered open or in a direction in which the guide member moves away from the second position, when the guide member is in the first position.