MEDIA TRANSFER DEVICE AND IMAGE FORMATION APPARATUS

• Main Authors: SATO DAICHI, OSAKI KOJI
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2021
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

To improve the workability of roller replacement.SOLUTION: A sheet feeding unit 40 includes a sheet feeding sub-roller 13, which rotates around a rotation axis along a rotation axis direction and conveys a sheet P, a sheet feeding roller 12, which is located downstream of the sheet feeding sub-roller 13 in a feeding direction of the sheet P, rotates around a rotation axis, and conveys the sheet P, a movable member 66, which rotatably holds the sheet feeding sub-roller 13, a movable member 51, which is provided on the opposite side of the movable member 66 with respect to the direction of the rotation axis across the sheet feeding sub-roller 13 and the sheet feeding roller 12, and rotatably holds the sheet feeding roller 12, a spring 68, which forces the movable member 66 in a sheet feeding sub-roller force direction Du2, which is a first direction along the direction of the rotation axis, and a spring 52, which forces the movable member 51 in a sheet feeding roller force direction Du1, which is the opposite direction of the sheet feeding sub-roller force direction Du2.SELECTED DRAWING: Figure 6 【課題】ローラの交換作業性を向上させる。【解決手段】給紙ユニット４０は、回転軸方向に沿う回転軸を中心に回転し、用紙Ｐを搬送する給紙サブローラ１３と、給紙サブローラ１３に対し用紙Ｐの搬送方向下流側に配置され、回転軸を中心に回転し、用紙Ｐを搬送する給紙ローラ１２と、給紙サブローラ１３を回転可能に保持する可動部材６６と、給紙サブローラ１３及び給紙ローラ１２を挟んで、回転軸方向に関し可動部材６６の逆側に設けられ、給紙ローラ１２を回転可能に保持する可動部材５１と、可動部材６６を回転軸方向に沿った第１の方向である給紙サブローラ付勢方向Ｄｕ２に付勢するばね６８と、可動部材５１を給紙サブローラ付勢方向Ｄｕ２の反対方向である給紙ローラ付勢方向Ｄｕ１に付勢するばね５２とを設ける。【選択図】図６