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    • 4. 发明申请
    • SHEET CONVEYER DEVICE AND IMAGE FORMING APPARATUS
    • 薄片输送装置和图像形成装置
    • US20140037350A1
    • 2014-02-06
    • US13953829
    • 2013-07-30
    • Takashi SUZUKI
    • Takashi SUZUKI
    • B65H7/02
    • B65H7/02B65H2407/21B65H2511/11B65H2511/51B65H2513/512B65H2513/514B65H2513/53B65H2701/1311B65H2701/1313B65H2801/06G03G15/6514G03G15/70G03G2215/0141B65H2220/01B65H2220/03B65H2220/02B65H2220/11
    • A sheet conveyer, including a manual-feed conveyer path; a first sensor to detect presence of the sheet inserted in the manual-feed conveyer path; an upstream-side conveyer and a downstream-side conveyer to convey the sheet toward a downstream side; a second sensor to detect presence of the sheet in a downstream position with respect to the upstream-side conveyer, the second sensor being switchable between a presence-detectable state and an absence-detectable state; and a controller is provided. The controller measures presence-detecting duration of the sheet by the second sensor and controls the downstream-side conveyer to continue conveying the sheet if the first sensor is detecting presence of the sheet when the second sensor is switched to the absence-detectable state, and if a difference between a value calculated based on the measured presence-detecting duration and a reference value obtained based on a reference sheet length is smaller than a predetermined threshold.
    • 纸张输送机,包括手动进给输送机路径; 用于检测插入在手动进给输送机路径中的纸张的存在的第一传感器; 上游侧输送机和下游侧输送机,将纸张向下游侧输送; 第二传感器,用于检测纸张在相对于上游侧输送机的下游位置的存在,第二传感器可在存在可检测状态和不可检测状态之间切换; 并提供控制器。 控制器通过第二传感器测量片材的存在检测持续时间,并且当第二传感器被切换到不可检测状态时,如果第一传感器检测到片材的存在,则控制下游侧传送器继续传送片材,以及 如果基于测量的存在检测持续时间计算的值与基于参考纸张长度获得的参考值之间的差异小于预定阈值。