# US 2019/0168522 A1 · Printing apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168522 A1 - Document ID: US20190168522A1 - Status: Published application - Kind: A1 - Application number: 16/211,024 - Filed: 2018-12-05 - Published: 2019-06-06 - Earliest claimed: 2017-12-06 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Takashi AKAHANE - Web page: https://patentgrep.com/patent/US20190168522A1 ## CPC - B41J 15/16: Means for tensioning or winding the web - B41J 15/046: {for the guidance of continuous copy material, e.g. for preventing skewed conveyance of the continuous copy material} - B41J 15/165: {for tensioning continuous copy material by use of redirecting rollers or redirecting nonrevolving guides} - B65H 5/064: {the axes of the rollers being perpendicular to the plane of the articles} - B65H 23/16: by weighted or spring-pressed movable bars or rollers - B65H 23/1806: {in reel-to-reel type web winding and unwinding mechanism, e.g. mechanism acting on web-roll spindle} - B65H 23/192: motor-controlled - B65H 23/1955: {and controlling web tension} - B65H 2404/62: Transversely-extending bars or tubes - B65H 2801/36: Plotting - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract A printing apparatus includes a transport unit configured to transport a medium, a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium, and a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium. The tension applying unit is configured so that the rod member moves along a predetermined direction as at least one of the transport unit and the winding unit is driven to transport the medium. An upper limit position of a movement of the tension bar along the predetermined axis is changed according to a winding mode of the winding unit. ## Claims ### Claim 1 A printing apparatus, comprising: a transport unit configured to transport a medium; a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium; and a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium, wherein the tension applying unit is configured so that the rod member moves along a predetermined axis as at least one of the transport unit and the winding unit is driven to transport the medium, and an upper limit position of a movement of the rod member along the predetermined axis is changed according to a winding mode of the winding unit. ### Claim 2 (depends on 1) The printing apparatus according to claim 1, wherein the upper limit position is changed according to a diameter of the medium wound around the winding unit. ### Claim 3 (depends on 1) The printing apparatus according to claim 1, wherein the rod member is configured to pivot along a circumference, and the tension applying unit includes a pivot shaft around which the rod member pivots and a detection unit configured to detect a displacement of a pivot of the pivot shaft. ### Claim 4 (depends on 1) The printing apparatus according to claim 1, wherein a lower limit position of a movement of the rod member along the predetermined axis is changed according to a winding mode of the winding unit. ### Claim 5 (depends on 1) The printing apparatus according to claim 1, wherein a lower limit position of a movement of the rod member along the predetermined axis is changed according to a diameter of the medium wound around the winding unit. ### Claim 6 A printing apparatus, comprising: a transport unit configured to transport a medium; a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium; and a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium, wherein the tension applying unit is configured so that the rod member moves along a predetermined axis as at least one of the transport unit and the winding unit is driven to transport the medium, and an upper limit position of a movement along the predetermined axis of the rod member is changed according to a diameter of the medium wound around the winding unit. ### Claim 7 (depends on 6) The printing apparatus according to claim 6, wherein the upper limit position is changed according to a winding mode of the winding unit. ### Claim 8 (depends on 6) The printing apparatus according to claim 6, wherein the rod member is configured to pivot along a circumference axis, and the tension applying unit includes a pivot shaft around which the rod member pivots and a detection unit configured to detect a displacement of a pivot of the pivot shaft. ### Claim 9 (depends on 6) The printing apparatus according to claim 6, wherein a lower limit position of a movement of the rod member along the predetermined axis is changed according to a winding mode of the winding unit. ### Claim 10 (depends on 6) The printing apparatus according to claim 6, wherein a lower limit position of a movement of the rod member along the predetermined axis is changed according to a diameter of the medium wound around the winding unit.