公开(公告)号：USD504087S1

公开(公告)日：2005-04-19

申请号：US29189443

申请日：2003-09-05

申请人： Hiroaki Hakamata ,  Michio Tada

设计人： Hiroaki Hakamata ,  Michio Tada

公开(公告)号：US06361038B1

公开(公告)日：2002-03-26

申请号：US09520786

申请日：2000-03-08

申请人： Michio Tada ,  Daisuke Imada ,  Yasutaka Komatsu

发明人： Michio Tada ,  Daisuke Imada ,  Yasutaka Komatsu

IPC分类号： B65H708

CPC分类号： B65H7/08 ,  B65H1/08 ,  B65H7/04 ,  B65H2511/212 ,  B65H2511/51 ,  B65H2511/515 ,  B65H2511/52 ,  B65H2513/51 ,  B65H2553/612 ,  B65H2220/01 ,  B65H2220/03 ,  B65H2220/11

摘要： An image forming apparatus is capable of detecting the presence or absence of sheets before a bottom plate moves up during a so-called initial operation, such as an operation for setting a sheet loading tray in the apparatus, and preventing the bottom plate from running wildly during, for example, an upward movement thereof. The apparatus includes an image forming unit for forming an image on a sheet transferred thereto, a sheet loading tray having a bottom plate which is loaded with sheets to be transferred to the image forming unit, and which is adapted to be vertically moved, a sheet nudging member for feeding the sheets from an upper side of the sheets stacked on the bottom plate toward the image forming unit, a first sensor provided above the sheet loading tray and adapted to detect the presence or absence of the sheets, a second sensor provided on the bottom plate of the sheet loading tray and adapted to detect the presence or absence of the sheets, and a control unit for controlling the vertical movements of the bottom plate of the sheet loading tray. The control unit is adapted to prohibit an upward movement of the bottom plate when the sheets are not detected by the second sensor at the time of setting the sheet loading tray in the apparatus.

摘要翻译： 图像形成装置能够在所谓的初始操作之前检测底板向上移动之前的片材的存在或不存在，例如用于在装置中设置片材装载盘的操作，并且防止底板疯狂地行进 例如在其向上移动的过程中。 该装置包括用于在转印到其上的片材上形成图像的图像形成单元，具有底板的片材装载盘，该底板装载要传送到图像形成单元的片材，并且适于垂直移动，片材 微动构件，用于从堆叠在底板上的片材的上侧朝向图像形成单元馈送片材;第一传感器，设置在片材装载盘的上方，适于检测片材的存在与否;第二传感器， 片材装载盘的底板，适于检测纸张的存在与否;以及用于控制纸张装载盘的底板的垂直运动的控制单元。 当在设备中设置纸张装载盘时，当第二传感器没有检测到纸张时，控制单元适于禁止底板的向上移动。