# US 2014/0153993 A1 · Transport device, transport method, image forming apparatus, and image forming method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153993 A1 - Document ID: US20140153993A1 - Status: Published application - Kind: A1 - Application number: 13/868,682 - Filed: 2013-04-23 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Fuji Xerox Co., Ltd. - Applicants: Fuji Xerox Co., Ltd. - Inventors: Ayumu ONO; Satoshi KUBOTA; Tomohiro YAMADA - Web page: https://patentgrep.com/patent/US20140153993A1 ## CPC - B65H 7/06: responsive to presence of faulty articles or incorrect separation or feed (B65H7/14 takes precedence) - B41J 11/42: Controlling {printing material conveyance for accurate alignment of the printing material with the printhead; Print registering} - B41J 11/663: {Controlling cutting, cutting resulting in special shapes of the cutting line, e.g. controlling cutting positions, e.g. for cutting in the immediate vicinity of a printed image} - B41J 11/70: cutting perpendicular to the direction of paper feed - B65H 35/04: from or with transverse cutters or perforators - B65H 2511/11: Length - B65H 2511/112: of a loop, e.g. a free loop or a loop of dancer rollers - B65H 2511/22: Distance - B65H 2513/10: Speed - B65H 2801/27: Devices located downstream of office-type machines - Y10T 83/04: Processes - Y10T 83/6572: With additional mans to engage work and orient it relative to tool station - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A transport device includes a transport unit that transports a paper sheet, a cutter unit that cuts the paper sheet, and a controller that, when transport of the paper sheet in the vicinity of the cutter unit is to be halted, controls the transport unit so that the transport unit transports the paper sheet by a longer travel when a specified length of the paper sheet is shorter than a threshold length than when the specified length of the paper sheet is longer than the threshold length. ## Claims ### Claim 1 A transport device comprising: a transport unit that transports a paper sheet; a cutter unit that cuts the paper sheet; and a controller that, when transport of the paper sheet in the vicinity of the cutter unit is to be halted, controls the transport unit so that the transport unit transports the paper sheet by a longer travel when a specified length of the paper sheet is shorter than a threshold length than when the specified length of the paper sheet is longer than the threshold length. ### Claim 2 (depends on 1) The transport device according to claim 1, wherein the controller switches between a first mode performed when a length of the paper sheet is longer than the threshold length and a second mode performed when the length of the paper sheet is shorter than the threshold length, wherein in the first mode, an ideal cut line corresponding to the length of the paper sheet is caused to be halted when a leading end of the paper sheet is halted, and wherein in the second mode, the ideal cut line is transported to the cutter unit while the leading end of the paper sheet remains halted. ### Claim 3 (depends on 1) The transport device according to claim 1, wherein the transport unit comprises a first transport section that transports the paper sheet upstream of the cutter unit, and a second transport section that transports the paper sheet downstream of the cutter unit; and wherein the controller controls the transport unit so that the first transport section rotates at a higher speed when the paper sheet is shorter than the threshold length than when the paper sheet is longer than the threshold length. ### Claim 4 (depends on 1) The transport device according to claim 1, wherein the cutter unit cuts the paper sheet, transported by the transport unit, at the ideal cut line where a resulting cut sheet has the specified length; wherein the transport unit comprises a first transport section that transports the paper sheet and then halts the transport of the paper sheet so that the ideal cut line is placed at the cutter unit, and a second transport section that transports the paper sheet downstream of the cutter unit in a direction of transport, and halts the transport of the leading end of the paper sheet at a standby position if the leading end of the paper is to remain on standby; and wherein the controller switches between a first transport control operation and a second transport control operation, wherein in the first transport control operation, if a timing of the second transport section of causing the leading end of the paper sheet to halt comes before a timing of the first transport section of causing the paper sheet to halt to place the ideal cut line at the cutter unit, the second transport section causes the leading end to halt in accordance with the length of the paper sheet while the first transport section causes the paper sheet to halt before the ideal cut line reaches the cutter unit, and wherein in the second transport control operation, the second transport section causes the leading end to halt while the first transport section transports the paper sheet until the cut line reaches the cutter unit and then halts the transport of the paper sheet. ### Claim 5 (depends on 4) The transport device according to claim 4, wherein the controller shifts to the second transport operation at a timing of starting deceleration of a transport speed of the paper sheet in the course of adjusting the speed of the paper sheet after the first transport section causes the paper sheet to halt once before the ideal cut line reaches the cutter unit in the first transport operation. ### Claim 6 (depends on 4) The transport device according to claim 4, further comprising an accommodating unit that accommodates curving of the paper sheet occurring in a paper transport path between the cutter unit and the standby position. ### Claim 7 (depends on 6) The transport device according to claim 6, wherein the controller controls the transport unit to transport the paper sheet in the first transport control operation if the transport of the paper sheet in the second transport operation causes the paper sheet to curve to a maximum of curving accommodated by the accommodating unit or more before the ideal cut line reaches the cutter unit. ### Claim 8 (depends on 4) The transport device according to claim 4, wherein the transport unit comprises a stepping motor as a driving source; and wherein the controller shifts to the second transport operation at a timing of the first transport section of starting deceleration of a transport speed of the paper sheet to cause the ideal cut line to reach the cutter unit while the stepping motor accelerates after the first transport section causes the paper sheet to halt once while the second transport section halts the leading end in the first transport control operation. ### Claim 9 (depends on 4) The transport device according to claim 4, wherein the controller switches between a third transport control operation and a fourth transport control operation, wherein in the third transport control operation, if a timing of the second transport section of causing the leading end of the paper sheet to halt comes after a timing of the first transport section of causing the paper sheet to halt to place the ideal cut line at the cutter unit, the second transport section causes a leading paper sheet cut by the cutter unit and transported by the first transport section to halt in accordance with the length of the paper sheet, and the first transport section transports the leading paper sheet and a subsequent paper sheet in succession to the cut leading paper sheet with a first paper sheet spacing therebetween, and wherein in the fourth transport control operation, the second transport section halts the transport of the leading paper sheet and the first transport section transports the subsequent paper sheet together with the leading paper sheet with a second paper sheet spacing therebetween different from the first paper sheet spacing. ### Claim 10 A transport method comprising: transporting a paper sheet; cutting the paper sheet; and when transport of the paper sheet in the vicinity of the cutter unit is to be halted, controlling the transport of the paper sheet so that the paper sheet is transported by a longer travel when a specified length of the paper sheet is shorter than a threshold length than when the specified length of the paper sheet is longer than the threshold length. ### Claim 11 An image forming apparatus comprising: a transport unit that transports a paper sheet; a cutter unit that cuts the paper sheet; a controller that, when transport of the paper sheet is to be halted, controls the transport unit so that the transport unit transports the paper sheet by a longer travel when a specified length of the paper sheet is shorter than a threshold length than when the specified length of the paper sheet is longer than the threshold length; and an image forming unit that forms an image on the paper sheet transported by the transport unit. ### Claim 12 An image forming method comprising: transporting a paper sheet; cutting the paper sheet; when transport of the paper sheet is to be halted, controlling the transport of the paper sheet so that the paper sheet is transported by a longer travel when a specified length of the paper sheet is shorter than a threshold length than when the specified length of the paper sheet is longer than the threshold length; and forming an image on the transported paper sheet.