# US 9,751,705 B2 · Sheet transport device, image reading 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 9,751,705 B2 - Document ID: US9751705B2 - Status: Granted - Kind: B2 - Application number: 15/003,420 - Filed: 2016-01-21 - Published: 2017-01-26 - Granted: 2017-09-05 - Earliest claimed: 2015-07-22 - Assignees: Fuji Xerox Co., Ltd. - Applicants: FUJI XEROX Co., Ltd. - Inventors: Kazuyuki Koda; Takakiyo Toba; Masato Serikawa; Takato Kato - Web page: https://patentgrep.com/patent/US9751705B2 ## CPC - B65H 3/0669: {Driving devices therefor} - B65H 3/0684: {on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile} - B65H 5/068: {between one or more rollers or balls and stationary pressing, supporting or guiding elements} - B65H 5/26: Duplicate, alternate, selective, or coacting feeds - G03G 15/602: {for transporting} - G06K 15/16: Means for paper feeding or form feeding - H04N 1/00: Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof - H04N 1/00795: {Reading arrangements (details of scanning heads H04N1/024; scanning arrangements therefor H04N1/04)} - B65H 2403/40: Toothed gearings - B65H 2403/481: Planetary - G03F 7/70: {Microphotolithographic exposure; Apparatus therefor (photo-masks G03F1/00)} - G03G 15/65: {Apparatus which relate to the handling of copy material (handling sheets or webs in general B65H; for photographic purposes in general G03B)} - G03G 15/6511: {Feeding devices for picking up or separation of copy sheets} - G03G 2221/1657: transmitting mechanical drive power - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G03F: PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; (phototypographic composing devices B41B; photosensitive materials or processes for photographic purposes G03C; electrophotography, sensitive layers or processes therefor G03G) ## Abstract A sheet transport device includes a feeding unit that feeds out a sheet from a sheet stack unit, a driving shaft that rotates the feeding unit, plural bearing members that support the driving shaft rotatably at plural positions in an axial direction and restrict movement of the driving shaft in the axial direction, and a fixing member provided integrally with each of the bearing members to removably fix each of the bearing members to an opening and closing member that is opened and closed relative to the sheet stack unit. ## Claims ### Claim 1 A sheet transport device comprising: a feeding unit configured to feed out a sheet from a sheet stack unit; a driving shaft configured to rotate the feeding unit; a plurality of bearing members configured to support the driving shaft rotatably at a plurality of positions in an axial direction and restrict movement of the driving shaft in the axial direction; and a fixing member provided integrally with each of the bearing members to removably fix each of the bearing members to an opening and closing member configured to be opened and closed relative to the sheet stack unit, wherein the fixing member is provided in a direction intersecting the driving shaft, and a distal end portion of the fixing member has a fixing portion to be snap-connected to the opening and closing member. ### Claim 2 (depends on 1) The sheet transport device according to claim 1, wherein the feeding unit includes a feed roller fixed to the driving shaft, a nudger roller to which rotation driving force is transmitted from the driving shaft, and first and second holding members disposed at opposite axial end portions of the feed roller and the nudger roller to hold the feed roller and the nudger roller rotatably, and wherein the first and second holding members are removably attached to each other in an axial direction of a rotation shaft that supports the nudger roller rotatably. ### Claim 3 (depends on 2) The sheet transport device according to claim 2, wherein one of the bearing members comprises a conductive member that ensures electrical conduction via the driving shaft, and the conductive member is in contact with a member for conduction provided in the opening and closing member. ### Claim 4 (depends on 1) The sheet transport device according to claim 1, wherein one of the bearing members comprises a conductive member that ensures electrical conduction via the driving shaft, and the conductive member is in contact with a member for conduction provided in the opening and closing member. ### Claim 5 (depends on 1) An image reading device comprising: a reading unit configured to read an image on a document; and a document transport unit configured to transport the document to the reading unit, wherein the sheet transport device according to claim 1 is used as the document transport unit. ### Claim 6 (depends on 5) An image forming apparatus comprising: the image reading device according to claim 5 configured to read an image on a document; and an image recording device configured to record the image read by the image reading device on a recording medium.