公开(公告)号：US4770403A

公开(公告)日：1988-09-13

申请号：US906510

申请日：1986-09-12

申请人： Akio Katsumata ,  Masafumi Toyofuku ,  Kotaro Yonenaga

发明人： Akio Katsumata ,  Masafumi Toyofuku ,  Kotaro Yonenaga

IPC分类号： B65H3/44 ,  B65H7/04 ,  B65H43/00 ,  G03G15/00 ,  B65H1/16 ,  B65H3/06 ,  B65H7/08

CPC分类号： G03G15/6502 ,  B65H3/44 ,  B65H43/00 ,  B65H7/04

摘要： A paper feeder is disclosed which has a plurality of trays arranged one above another and a paper feed unit movable up and down to one of the trays selected. To control paper transport speed, a paper sensor is actuated prior to a level sensor during movement of the paper feed unit to a paper feed position, and a paper feed unit drive motor begins to be decelerated in response to an "on" signal of the paper sensor. The amount of papers remaining in any of the trays is detected by counting drive pulses applied to a pulse motor, which is adapted to drive the paper feed unit. After a power source has been turned on, the amounts of remaining papers in all the trays are detected and displayed prior to a copying operation.

摘要翻译： 公开了一种供纸器，其具有一个在另一个上方布置的多个托盘和可上下移动到所选托盘之一的送纸单元。 为了控制纸张传送速度，在将供纸单元移动到送纸位置期间，纸张传感器在水平传感器之前被致动，并且供纸单元驱动电动机响应于“打开”信号而开始减速 纸张传感器 通过对施加到适于驱动供纸单元的脉冲电机的驱动脉冲进行计数，来检测剩余在任何托盘中的纸张量。 在电源打开之后，在复印操作之前检测并显示所有纸盘中的剩余纸张量。

公开(公告)号：US4916547A

公开(公告)日：1990-04-10

申请号：US198855

申请日：1988-05-26

申请人： Akio Katsumata ,  Mitsuo Hasebe ,  Yoshihiro Mitekura ,  Hiroshi Hosaka ,  Itaru Matsuda ,  Kotaro Yonenaga ,  Takayuki Maruta ,  Masaaki Kogure

发明人： Akio Katsumata ,  Mitsuo Hasebe ,  Yoshihiro Mitekura ,  Hiroshi Hosaka ,  Itaru Matsuda ,  Kotaro Yonenaga ,  Takayuki Maruta ,  Masaaki Kogure

IPC分类号： G03G15/01 ,  G03G15/16 ,  H04N1/50

CPC分类号： H04N1/506 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161

摘要： An image forming apparatus of the type producing a single composite color image on a paper which is transported by a belt by transferring image components of different colors to the paper in register with each other. The apparatus reduces with a simple construction the positional deviation of the image components which occurs in an intended direction of paper transport. Recording devices individually adapted for black, cyan, magenta and yellow are arranged side by side. Pattern images for measurement each being associated with a respective one of those colors are formed on the belt. A timing at which each of the pattern images arrives is sensed and counted. The count is compared with a reference value to calculate an amount of deviation. Write start timing signals each being associated with a particular color are generated which are individually variable on the basis of the deviation calculated. The pattern images of the respective colors are each generated by using a write start timing associated with the color as a reference, and the pattern to be provided by any of the recording devices is outputted on a downstream side of the belt relative to the pattern to be provided by another recording device which is located downstream of the first-mentioned recording device.

摘要翻译： 一种在纸张上产生单一复合彩色图像的图像形成装置，其通过将不同颜色的图像分量传送到纸张而被传送的纸张彼此对准。 该装置以简单的结构减少了在纸张传送的预期方向上发生的图像分量的位置偏差。 分别适用于黑色，青色，品红色和黄色的记录装置并排布置。 在带上形成有与这些颜色中的相应颜色相关联的用于测量的图案图像。 每个图案图像到达的定时被感测和计数。 将计数与参考值进行比较以计算偏差量。 生成与特定颜色相关联的写入开始定时信号，其基于计算的偏差而单独变化。 各颜色的图案图像各自通过使用与颜色相关联的写入开始定时作为基准来生成，并且由任何记录装置提供的图案相对于图案在带的下游侧输出到 由位于第一记录装置下游的另一记录装置提供。