公开(公告)号：US07354147B2

公开(公告)日：2008-04-08

申请号：US10701787

申请日：2003-11-04

Applicant: James O. Beehler

Inventor： James O. Beehler

IPC: B41J2/01

CPC classification number: B41J11/06 ,  B41J11/0085 ,  B41J11/057

Abstract: A method and apparatus providing a platen for supporting a media sheet. The platen includes a contact surface, a channel and air passage. The channel is defined in the contact surface and includes a varying cross-sectional area along at least a portion of a length of the channel. The air passage extends from the channel to deliver negative pressure to the channel. The depth of the channel at the second end is less than the depth of the channel at the first end, and the width of the channel at the first end is greater than the width of the channel at second end.

Abstract translation: 提供用于支撑介质片的压板的方法和装置。 压板包括接触表面，通道和空气通道。 通道限定在接触表面中，并且包括沿通道长度的至少一部分的变化的横截面面积。 空气通道从通道延伸以向通道传送负压。 在第二端处的通道的深度小于第一端处的通道的深度，并且第一端处的通道的宽度大于第二端处的通道的宽度。

公开(公告)号：US06621990B1

公开(公告)日：2003-09-16

申请号：US10198285

申请日：2002-07-17

Applicant: James O. Beehler ,  Todd R. Medin

Inventor： James O. Beehler ,  Todd R. Medin

IPC: G03G1500

CPC classification number: G03G15/6529 ,  B41J29/377 ,  G03G21/206

Abstract: A method for determining a present air density for an imaging mechanism is presented. During a first time period: in a determining and storing action, a nominal air density is stored. In an increasing action, a fan input is increased until a known pressure in a cavity coupled to a fan receiving the fan input has been reached. In a determining and storing action, a nominal fan parameter is determined and stored after the known pressure is reached. During a second time period: in an increasing action, the fan input is increased until the known pressure in the cavity has been reached. In a determining action, a present fan parameter is determined after the known pressure is reached. In a calculating action, the present air density is calculated from the present fan parameter, the nominal fan parameter, and either the known pressure or the nominal air density.

Abstract translation: 提出了一种用于确定成像机构的当前空气密度的方法。 在第一时间段内：在确定和存储动作中，存储标称空气密度。 在增加的作用下，风扇输入增加，直到已经达到与接收风扇输入的风扇耦合的空腔中的已知压力。 在确定和存储动作中，在达到已知压力之后确定和存储标称风扇参数。 在第二时间段期间：在增加的作用下，风扇输入增加直到达到已知的空腔压力。 在确定动作中，在达到已知压力之后确定当前风扇参数。 在计算动作中，根据当前风扇参数，标称风扇参数以及已知压力或标称空气密度计算当前空气密度。

公开(公告)号：US06409332B1

公开(公告)日：2002-06-25

申请号：US09514830

申请日：2000-02-28

Applicant: Robert M Yraceburu ,  Steve O Rasmussen ,  James O Beehler

Inventor： Robert M Yraceburu ,  Steve O Rasmussen ,  James O Beehler

IPC: B41J201

CPC classification number: B41J11/0085 ,  B41J11/007

Abstract: An ink-jet apparatus employs a platen having an array of vacuum ports that are each filtered. The filter is constructed to provide restricted-airflow rates which remain uniform when the platen is either fully covered or partially uncovered. The filter mechanism provides both airflow restrictions such that ink drop flight trajectories in the printing zone are unaffected, acoustic dampening of the vacuum pump is provided, and vacuum pressure is kept relatively high proximate the print media edges.

Abstract translation: 喷墨装置采用具有每个过滤的真空端口阵列的压板。 过滤器被构造成当压板被完全覆盖或部分未覆盖时提供保持均匀的限制气流速率。 过滤器机构提供气流限制，使得打印区域中的墨滴飞行轨迹不受影响，提供真空泵的声阻尼，并且在打印介质边缘附近的真空压力保持相对较高。