公开(公告)号：WO2007011043A1

公开(公告)日：2007-01-25

申请号：PCT/JP2006/314533

申请日：2006-07-18

Applicant: RICOH COMPANY, LTD. ,  KOGURE, Seiichi ,  IMOTO, Shinji

Inventor： KOGURE, Seiichi ,  IMOTO, Shinji

IPC: B41J11/02 ,  B41J2/01 ,  B65H5/00

CPC classification number: B65H5/026 ,  B41J11/007 ,  B65H5/025 ,  B65H2301/5322

Abstract: A disclosed image forming apparatus comprises: a conveying belt conveying a record medium attracted to the conveying belt using electrostatic force; a recording head for ejecting droplets on the record medium and forming an image; and a voltage waveform applying unit applying voltage waveforms, in which the shape of a positive waveform and the shape of a negative waveform are different, to the conveying belt so as to apply positive and negative electric charge thereto and generate the electrostatic force.

Abstract translation: 公开的图像形成装置包括：输送带，其使用静电力传送吸引到输送带的记录介质; 用于在记录介质上喷射液滴并形成图像的记录头; 以及电压波形施加单元，其将正波形的形状和负波形的形状不同的电压波形施加到输送带，以向其施加正电荷和负电荷并产生静电力。

公开(公告)号：WO2005108253A1

公开(公告)日：2005-11-17

申请号：PCT/JP2005/008813

申请日：2005-05-09

Applicant: RICOH COMPANY, LTD. ,  IMOTO, Shinji ,  ITO, Yoichi ,  KOGURE, Seiichi

Inventor： IMOTO, Shinji ,  ITO, Yoichi ,  KOGURE, Seiichi

IPC: B65H5/00

CPC classification number: B41J3/60 ,  B41J11/0015 ,  B41J11/002 ,  B41J11/007 ,  B41J13/0045 ,  B41J29/38 ,  B65H5/004 ,  B65H5/025 ,  B65H2301/44334 ,  B65H2301/5133 ,  B65H2301/5321

Abstract: In an image forming apparatus, an AC bias is supplied to a conveyance belt, and the amount of charge on the printing side of a recording sheet is decreased. The charge of positive polarity and the charge of negative polarity which are different from each other are generated on the printing side of the sheet, so that both the charges are cancelled by each other and the charge on the printing side of the sheet is eliminated. Moreover, the charge eliminator eliminates the charge on the printing side of the sheet by the time the sheet is electrostatically attached to the conveyance belt and conveyed to a position where the sheet confronts the head.

Abstract translation: 在图像形成装置中，向输送带提供AC偏压，并且记录纸的印刷侧的电荷量减少。 在纸张的印刷侧产生正极性和负极性的电荷彼此不同的电荷，从而两种电荷彼此抵消，并且消除了印刷侧的电荷。 此外，当片材静电附着到传送带上并且传送到片材面对头部的位置时，电荷消除器消除了片材印刷侧的电荷。

公开(公告)号：WO2005108099A1

公开(公告)日：2005-11-17

申请号：PCT/JP2005/008651

申请日：2005-05-02

Applicant: RICOH COMPANY, LTD. ,  IMOTO, Shinji ,  KOGURE, Seiichi

Inventor： IMOTO, Shinji ,  KOGURE, Seiichi

IPC: B41J11/42

CPC classification number: B65H5/026 ,  B41J11/007 ,  B65H5/004 ,  B65H5/025 ,  B65H2301/44334 ,  B65H2301/5322 ,  B65H2404/28 ,  B65H2515/40 ,  B65H2220/03 ,  B65H2220/01

Abstract: An image forming apparatus can improve an accuracy of conveyance of a recording medium with a simple structure and prevent a reverse flow of mist so as to stably form a high-quality image. A conveyance belt (21) conveys a recording medium (12) by attracting the recording medium by an electrostatic force generated by electric charges applied thereto. A recording head (7) discharges droplets of a recording liquid toward the recording medium (12). An amount of electric charges induced on a surface of the recording medium (12), which has been conveyed to a recording position where the droplets of the recording liquid are discharged from the recording head (7) toward the recording medium (12), is adjusted in accordance with a resistance value of the recording medium (12).

Abstract translation: 图像形成装置可以以简单的结构提高记录介质的传送精度，并且防止雾的反向流动，从而稳定地形成高质量的图像。 传送带（21）通过由施加于其上的电荷产生的静电力吸引记录介质来传送记录介质（12）。 记录头（7）将记录液体的液滴朝向记录介质（12）排出。 已经传送到记录液体的记录液体从记录头（7）向记录介质（12）排出的记录位置的记录介质（12）的表面上引起的电荷量是 根据记录介质（12）的电阻值进行调节。

公开(公告)号：WO2007046309A1

公开(公告)日：2007-04-26

申请号：PCT/JP2006/320523

申请日：2006-10-10

Applicant: RICOH COMPANY, LTD. ,  KOGURE, Seiichi ,  IMOTO, Shinji

Inventor： KOGURE, Seiichi ,  IMOTO, Shinji

IPC: B41J11/42 ,  B41J2/01 ,  B41J13/02 ,  B41J21/00 ,  B41J29/42 ,  B41J29/46

CPC classification number: B41J13/0027 ,  B41J11/007 ,  B41J11/008 ,  B41J11/0095

Abstract: An image forming apparatus that forms an image on a recording medium by conveying the recording medium in a direction orthogonal to a scanning direction of a carriage having a recording head includes a first detecting unit mounted on the carriage and configured to detect the recording medium; a second detecting unit placed upstream from the first detecting unit in the direction that the recording medium is conveyed and configured to detect the recording medium; and a control unit configured to control operations of the image forming apparatus based on a detection result from the first detecting unit or the second detecting unit.

Abstract translation: 通过在与具有记录头的滑架的扫描方向正交的方向上传送记录介质，在记录介质上形成图像的图像形成装置包括安装在滑架上并构造成检测记录介质的第一检测单元; 第二检测单元，沿着所述记录介质被传送的方向从所述第一检测单元的上游设置并配置为检测所述记录介质; 以及控制单元，被配置为基于来自第一检测单元或第二检测单元的检测结果来控制图像形成装置的操作。

公开(公告)号：WO2007013236A1

公开(公告)日：2007-02-01

申请号：PCT/JP2006/312199

申请日：2006-06-12

Applicant: RICOH COMPANY, LTD. ,  IMOTO, Shinji ,  KOGURE, Seiichi

Inventor： IMOTO, Shinji ,  KOGURE, Seiichi

IPC: B65H5/02 ,  B41J2/01 ,  B41J11/02

CPC classification number: B41J11/007

Abstract: An image forming device, includes a recording head configured to jet a liquid drop of recording liquid to a recording medium so that an image is formed; and a conveyance belt adhering the recording medium by an electrostatic force. The recording medium adhered to the conveyance belt by the electrostatic force is not separated from the conveyance belt at an angle formed by a flat surface of the conveyance belt facing the recording head and a tilt surface of the conveyance belt tilting downward at a downstream side of the recording head.

Abstract translation: 一种图像形成装置，包括：记录头，被配置为将记录液体的液滴喷射到记录介质，从而形成图像; 以及通过静电力粘合记录介质的传送带。 通过静电力粘附在输送带上的记录介质不会以与面向记录头的传送带的平坦表面形成的角度与传送带分离，并且传送带的倾斜表面在下游侧向下倾斜 录音头。

公开(公告)号：WO2005102704A1

公开(公告)日：2005-11-03

申请号：PCT/JP2005/008267

申请日：2005-04-22

Applicant: RICOH COMPANY, LTD. ,  KOGURE, Seiichi ,  IMOTO, Shinji

Inventor： KOGURE, Seiichi ,  IMOTO, Shinji

IPC: B41J2/01

CPC classification number: B41J11/42 ,  B41J11/007

Abstract: An image forming apparatus can form a high- quality image while acquiring a stable conveyance performance. A conveyance belt (21) conveys a recording medium (12) by attracting the recording medium (12) by an electrostatic force. A recording head (7) discharges liquid droplets toward the recording medium (12) being conveyed by the conveyance belt (21). Alternating positive and negative electric charges are applied onto the conveyance belt (21). A conveyance speed is controlled in accordance with a charge period length of the alternating positive and negative electric charges applied onto the conveyance belt (21).

Abstract translation: 图像形成装置可以在获得稳定的输送性能的同时形成高质量图像。 传送带（21）通过静电力吸引记录介质（12）来传送记录介质（12）。 记录头（7）将液滴朝向由输送带（21）输送的记录介质（12）排出。 将交替的正电荷和负电荷施加到输送带（21）上。 根据施加到输送带（21）上的交替的正电荷和负电荷的充电期间长度来控制输送速度。