发明名称 Print apparatus
摘要 A first reading unit that reads a pattern or an image formed on a sheet by a print unit for recognizing a print unit state, a second reading unit that reads a cut mark formed on the sheet on a downstream thereof, a cutter that cuts the sheet on a downstream thereof, and a reverse unit that reverses the sheet fed to the print unit again are provided. In duplex printing, the sheet where images are sequentially printed on a first surface is led to the reverse unit, the front and rear faces are reversed, and the sheet is fed to the print unit again. The sheet where images and cut marks are sequentially printed on a second surface is cut by the cutter for each piece and discharged. The sheet is cut on the basis of a reading of the cut mark by the second reading unit.
申请公布号 US8955959(B2) 申请公布日期 2015.02.17
申请号 US201012957317 申请日期 2010.11.30
申请人 Canon Kabushiki Kaisha 发明人 Teshigawara Minoru;Nagoshi Shigeyasu;Murayama Yoshiaki;Hirosawa Susumu;Murase Takeshi;Kano Yutaka;Azuma Satoshi;Muro Kentarou;Kato Masao;Kato Minako
分类号 B41J2/01;B41J3/60;B41J11/66;B41J13/00;B41J29/393 主分类号 B41J2/01
代理机构 Canon USA, Inc., IP Division 代理人 Canon USA, Inc., IP Division
主权项 1. An apparatus capable of performing duplex printing, the apparatus comprising: a print unit configured to print on a continuous sheet at a print position in a path where the continuous sheet is fed from a sheet feeding unit; a decurl unit configured to perform decurling of the continuous sheet; a first reading unit configured to read at least one of a pattern and an image formed on the continuous sheet by the print unit for inspecting a print state of the print unit, at a first reading position on a downstream of the print position in the path; a second reading unit, provided separately from the first reading unit, configured to read a cut mark formed on the sheet at a second reading position on a downstream of the first reading position in the path; a cutter unit that cuts the continuous sheet on a downstream of the second reading position in the path, wherein the cutter unit has a first cutter and a second cutter located downstream of the first cutter; and a reverse unit configured to reverse the sheet which has passed through the cutter, wherein, in the duplex printing, the print unit prints a plurality of images on a first surface of the sheet fed from the sheet feeding unit, the sheet printed on the first surface is led to the reverse unit, the reverse unit feeds the reversed sheet toward the print unit again, the decurl unit performs decurling of the continuous sheet fed from the reverse unit, the print unit prints a plurality of images and a plurality of cut marks on a second surface that is a back of the first surface of the sheet fed from the reverse unit through the decurl unit, and the cutter cuts the sheet printed on the second surface based on a reading of the cut mark on the second surface by the second reading unit, wherein the continuous sheet is cut first by a first cut action using the first cutter at a first cut position on the continuous sheet based on a reading of the cut mark by the second reading unit to produce a cut sheet part, on which the image is printed, from the continuous sheet, and subsequently the cut sheet part is cut by a second cut action using the second cutter at a second cut position on the cut sheet part, wherein the first cut position is a position corresponding to an end part on an upstream side of one margin area and the second cut position is a position corresponding to an end part on a downstream side of the one margin area, wherein the one margin area is cut off by the first and second cut actions, and wherein the decurl unit is positioned on upstream of the first reading unit to perform decurling of the continuous sheet prior to when either one of the first reading unit and the second reading unit performs reading.
地址 Tokyo JP