公开(公告)号：US20020090233A1

公开(公告)日：2002-07-11

申请号：US09822867

申请日：2001-04-02

发明人： Jae-Myoung Choi

IPC分类号： G03G015/11

CPC分类号： G03G15/11

摘要： A photoreceptor web drying unit of a liquid electrophotographic printer includes a plurality of heating sources, installed close to but not contacting a photoreceptor web, for generating heat used for drying and vaporizing liquid carrier, a manifold, encompassing the heating sources, for collecting gas carrier vaporized by the heating sources, a circulation line, forming a closed loop connected to the manifold, for forming a path for circulation of the gas carrier collected in the manifold, an inlet duct, installed at the manifold to be connected to the circulation line, through which the gas carrier vaporized by the heating sources can flow, and a blowing duct, installed at the manifold to be connected to the circulation line, through which air can flow into the manifold. Thus, since the drying unit is formed in a non-contact method with respect to the photoreceptor web, images are not inadvertently picked-up by the drying unit. Also, since the drying unit reduces image defects, the quality of the printed image is improved.

公开(公告)号：US06418289B1

公开(公告)日：2002-07-09

申请号：US09725282

申请日：2000-11-29

申请人： Robert Kleckner ,  Gerald A. Domoto ,  F. James Wang

发明人： Robert Kleckner ,  Gerald A. Domoto ,  F. James Wang

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： An apparatus is provided for drying a liquid image carried on a surface of a medium moving along a predetermined path from an upstream location towards a downstream location. The apparatus includes an air moving device, such as a blower, that moves air. A plenum has an intake that receives air and an outlet permitting the air to exit the plenum. A channel structure communicates with the outlet of the plenum and is disposed generally adjacent to a surface of the medium carrying the image. The channel structure includes an upstream channel portion and a downstream channel portion such that air exiting the outlet of the plenum is diverted to flow towards the upstream location in the upstream channel portion and towards the downstream location in the downstream channel portion. A heater is associated with the medium to heat at least a portion of the medium and thus the image. A method of drying a liquid image on a surface of a medium is also provided. The apparatus and method may arranged so that the direction of air is reversed where the air then moves along the channel structure by suction action rather than by being blown through the channel.

公开(公告)号：US06393240B1

公开(公告)日：2002-05-21

申请号：US09662816

申请日：2000-09-15

申请人： Shoko Seto

发明人： Shoko Seto

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： An image forming apparatus includes an exposure unit for forming a latent image on a photosensitive body which is rotating, a developing device, containing liquid developer in which developer particles are dispersed in a solvent, for supplying the liquid developer to the latent image on the photosensitive body and forming a developer image, a squeeze roller, which rotates in contact with the photosensitive body, for removing a surplus of the liquid developer remaining on the photosensitive body after development; and a transfer unit for transferring the developer image to a paper sheet after the surplus of the liquid developer is removed by the squeeze roller. The squeeze roller has a surface configuration which allows contact with the developer image on the photosensitive body with a uniform contact pressure in a contact portion where the squeeze roller contacts to the photosensitive body.

摘要翻译： 图像形成装置包括用于在旋转的感光体上形成潜像的曝光单元，包含显影剂颗粒分散在溶剂中的液体显影剂的显影装置，用于将液体显影剂供应到感光体上的潜像 形成显影剂图像，与感光体接触旋转的挤压辊，用于在显影后除去残留在感光体上的剩余的液体显影剂; 以及转印单元，用于通过挤压辊除去多余的液体显影剂之后将显影剂图像转印到纸张上。 挤压辊具有表面构造，其允许在感光体上与显影剂图像在感光体接触的接触部分中以均匀的接触压力接触显影剂图像。

公开(公告)号：US20020028090A1

公开(公告)日：2002-03-07

申请号：US09854917

申请日：2001-05-15

申请人： SAMSUNG ELECTRONICS CO., LTD

发明人： Seong-soo Shin ,  Hyun-goo Woo ,  Won-seok Lee ,  Jae-myoung Choi

IPC分类号： G03G015/11

CPC分类号： G03G15/11 ,  G03G2215/017

摘要： A drying unit and method of drying for a liquid electrophotographic printing apparatus, the drying unit that is equipped in the printing apparatus comprising a developing unit that develops an image on an photosensitive medium using a liquid carrier as a mediator and a transfer unit that transcribes the developed image on a printing paper, so that the liquid carrier remaining on the photosensitive medium can be dried. The drying unit for the liquid electrophotographic printing apparatus is positioned near the photosensitive medium and includes a manifold having an inlet and an outlet; an inlet-outlet channel being between the inlet and the outlet and connecting them; a gas flowing unit by which the gas in the manifold is discharged through the outlet and gas flows in the manifold through the inlet; a condenser that condenses the evaporated carrier discharged through the outlet; and a heater that heats the gases flowing in the manifold through the inlet. Also, the liquid carrier drying method includes determining the injection condition; heating injection air according to the determined gas injection condition and evaporating the carrier on the photosensitive medium by injecting the heated gas at a predetermined speed in the manifold; discharging out of the manifold the carrier evaporated from the photosensitive medium and the air flowing in; and condensing the evaporated carrier at the manifold, of reheating the gas that is not condensed, injecting the gas at a predetermined speed into the manifold.

摘要翻译： 一种用于液体电子照相打印设备的干燥单元和干燥方法，所述干燥单元配备在所述打印设备中，所述打印设备包括使用液体载体作为介质在感光介质上显影图像的显影单元和转印单元 在打印纸上显影图像，使得残留在感光介质上的液体载体可以被干燥。 用于液体电子照相打印设备的干燥单元位于感光介质附近，并且包括具有入口和出口的歧管; 入口 - 出口通道位于入口和出口之间并连接它们; 歧管中的气体通过出口排出的气体流动单元，并且气体在歧管中通过入口流动; 冷凝器，冷凝通过出口排放的蒸发载体; 以及加热器，其通过入口加热在歧管中流动的气体。 此外，液体载体干燥方法包括确定注射条件; 根据所确定的气体注入条件加热注射空气，并通过在歧管中以预定速度注入加热的气体来蒸发感光介质上的载体; 从歧管中排出的载体从感光介质蒸发并流入空气中; 并且在歧管处冷凝蒸发的载体，对未冷凝的气体进行再加热，以预定速度将气体注入到歧管中。

公开(公告)号：US20010026713A1

公开(公告)日：2001-10-04

申请号：US09794911

申请日：2001-02-28

申请人： NEC CORPORATION

发明人： Hiroshi Nishikawa

IPC分类号： G03G015/10

CPC分类号： G03G15/11 ,  G03G2215/017

摘要： An operational sequence including a cleaning of a processing device shifting to the standby state in the process of shifting from a printing operation to a standby state of a liquid electro-photographic device of a tandem type is performed well. A processing device has a squeeze roller for performing removal of residual liquid developer from an image formed on a photoconductive belt 2 and for forming an image into a film and is removed in order that the squeeze roller 6 shifts from the state having a clearance from the photoconductive belt 2 to the state being pressed against the photoconductive belt 2 for performing a removal of the liquid developer remaining on the squeeze roller 6 to the photoconductive belt 2 in sequence when the image forming operation is finished after cleaning the liquid developer adhered on the squeeze roller 6, and the removal proceeds sequentially from a processing device on a downstream side of a traveling direction of the photoconductive belt 2. And the processing device is retracted in order that the squeeze roller 6 shifts from the state having a clearance from the photoconductive belt 2 to the state pressed against the photoconductive belt 2 after performing the removal of the liquid developer remaining on the squeeze roller 6 to the photoconductive belt 2 in sequence, and retraction proceeds sequentially from a processing device on a downstream side before the dirt of the liquid developer removed from the squeeze roller of the processing device on an upstream side to the photoconductive belt 2.

摘要翻译： 良好地执行包括在从串联式的液体电子照相装置的打印操作转移到待机状态的过程中切换到待机状态的处理装置的清洁的操作顺序。 处理装置具有挤压辊，用于从形成在感光带2上的图像中除去残留的液体显影剂，并且将图像形成膜并被去除，以便挤压辊6从具有间隙的状态 感光带2被压靠在感光带2上，用于在清洁附着在挤压机上的液体显影剂之后，当图像形成操作结束时，依次将保留在挤压辊6上的液体显影剂移除到感光带2 辊6，并且从感光带2的行进方向的下游侧的处理装置依次进行去除。并且处理装置缩回，以使挤压辊6从具有间隙的状态从光电导带 2到执行去除液体显影剂r之后被压靠在感光带2上的状态 在挤压辊6上顺序地向感光带2上排出，并且在液体显影剂的污染从上游侧的加工装置的挤压辊移除到感光带之前，从下游侧的处理装置顺序地进退 2。

公开(公告)号：US06295430B1

公开(公告)日：2001-09-25

申请号：US09629799

申请日：2000-07-31

申请人： Dong-hwan Kang

发明人： Dong-hwan Kang

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： A drying unit coupling apparatus of a liquid electrophotographic printer in which the engagement of a driving gear installed at a main frame, and a driven gear installed at a cam shaft, are prevented from disengaging when an auxiliary frame supporting the cam shaft is coupled to the main frame. The driven gear is engaged with the driving gear when the auxiliary frame and the main frame are coupled. The apparatus includes a main frame where a driving roller supports a circulating photoreceptor medium, a driving gear installed at the main frame, an auxiliary frame which is slidably installed at the main frame, a cam shaft supported at the auxiliary frame, a drying unit, a driven gear installed at the cam shaft, a cam member installed at the cam shaft, and a position fixing mechanism which fixes the position of the cam shaft when the driving gear and the driven gear are engaged, preventing the driving gear and the driven gear from deviating from each other. The drying unit includes a drying roller for absorbing a liquid carrier remaining on the photoreceptor medium, a heating roller for heating the drying roller, and a separation plate and a contact plate, all installed in a drying unit frame. The cam member selectively pushes the separation plate or the contact plate so that the drying unit frame closely contacts or separates from the main frame.

摘要翻译： 当支撑凸轮轴的辅助框架联接到主体框架上时，防止安装在主框架上的驱动齿轮和安装在凸轮轴上的从动齿轮的啮合的液体电子照相打印机的干燥单元联接设备脱离接合 主框架 当辅助框架和主框架联接时，从动齿轮与驱动齿轮接合。 该装置包括主框架，其中驱动辊支撑循环感光体介质，安装在主框架上的驱动齿轮，可滑动地安装在主框架上的辅助框架，支撑在辅助框架上的凸轮轴，干燥单元， 安装在凸轮轴上的从动齿轮，安装在凸轮轴上的凸轮部件，以及当驱动齿轮和从动齿轮接合时固定凸轮轴的位置的位置固定机构，防止驱动齿轮和从动齿轮 从彼此偏离。 干燥单元包括用于吸收保留在感光体介质上的液体载体的干燥辊，用于加热干燥辊的加热辊，以及分离板和接触板，全部安装在干燥单元框架中。 凸轮构件选择性地推动分隔板或接触板，使得干燥单元框架与主框架紧密接触或分离。

公开(公告)号：US06253051B1

公开(公告)日：2001-06-26

申请号：US09484726

申请日：2000-01-18

申请人： Kazuaki Iikura ,  Takeshi Hirano

发明人： Kazuaki Iikura ,  Takeshi Hirano

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： A wet-type image forming apparatus which allows excess solvent to be effectively removed from the developed image is disclosed. A developing roller develops a latent image on the photoconductor member using the liquid developer composed of toner particles and a solvent. A squeezing roller squeezes excess solvent from a surface of a photoconductor member. A heater heats liquid developer existing on the photoconductor member to a temperature at which the solvent of the liquid developer is prone to vaporize. The heater is provided in one of the developing roller, the squeezing roller, and the liquid developer reservoir.

摘要翻译： 公开了允许从显影图像有效地除去过量溶剂的湿式图像形成装置。 显影辊使用由调色剂颗粒和溶剂组成的液体显影剂在感光体构件上显影潜像。 挤压辊从感光体构件的表面挤压多余的溶剂。 加热器将存在于感光体构件上的液体显影剂加热到液体显影剂的溶剂容易蒸发的温度。 加热器设置在显影辊，挤压辊和液体显影剂储存器中的一个中。

公开(公告)号：US06243553B1

公开(公告)日：2001-06-05

申请号：US09466913

申请日：1999-12-20

申请人： Jin-soo Lee ,  Chang-soo Lee ,  Jin-geun Kwak

发明人： Jin-soo Lee ,  Chang-soo Lee ,  Jin-geun Kwak

IPC分类号： G03G1510

CPC分类号： G03G15/11 ,  G03G15/101 ,  G03G2215/017

摘要： A developer cleaning method for a liquid electrophotographic printer is achieved by developing an electrostatic latent image by supplying developer supplied from an injection nozzle to a photoreceptor medium via a development roller, removing drip developer formed on the photoreceptor web between a squeegee roller and the development roller, removing developer remaining between the injection nozzle and the development roller, and reducing an electrical potential of the development roller after development so that toner particles included in the drip developer are transferred to the development roller due to a difference in electrical potential.

摘要翻译： 液体电子照相打印机的显影剂清洗方法是通过将从注射喷嘴供给的显影剂经由显影辊供给到感光体介质的显影静电潜像来实现的，除去在刮板辊和显影辊之间的感光体网上形成的滴液显影剂 去除在喷嘴和显影辊之间残留的显影剂，并且在显影之后降低显影辊的电位，使包含在滴液显影剂中的调色剂颗粒由于电位差而转移到显影辊。

公开(公告)号：US6035167A

公开(公告)日：2000-03-07

申请号：US346148

申请日：1999-07-09

申请人： Yuuki Sekura

发明人： Yuuki Sekura

IPC分类号： G03G15/10 ,  G03G15/11 ,  G03G21/00

CPC分类号： G03G15/11

摘要： A wet-type image forming apparatus providing a uniform pressure applied to a photoconductor belt is disclosed. A squeezing roller is provided in the development side of the photoconductor belt and a backup roller in provided in the non-development side of the photoconductor belt. The photoconductor belt is held by the squeezing and backup rollers under a predetermined pressure during development. The squeezing roller is moved toward or away from the photoconductor belt and the longitudinal axis of the backup roller is titled to a predetermined angel with respect to that of the squeezing roller about an longitudinal middle point thereof during the development.

摘要翻译： 公开了一种提供施加到光电导体带上的均匀压力的湿式图像形成装置。 在感光带的显影侧设有挤压辊，在感光体带的非显影侧设有支承辊。 在显影期间，感光鼓在预定的压力下由挤压和支承辊保持。 挤压辊朝着或离开感光带移动，并且支撑辊的纵向轴线在显影期间相对于挤压辊的纵向中点标称为预定角度。

公开(公告)号：US6020099A

公开(公告)日：2000-02-01

申请号：US184136

申请日：1998-11-02

申请人： Chu-Heng Liu ,  Weizhong Zhao

发明人： Chu-Heng Liu ,  Weizhong Zhao

IPC分类号： G03G15/095 ,  G03G15/11 ,  G03G13/095

CPC分类号： G03G15/095 ,  G03G15/11

摘要： A method and apparatus for producing high quality toner images in an electrostatic printing machine. The method using the apparatus includes (a) (a) forming an initial developed toner image on a photoreceptor using a first toner image forming assembly including a charging device for uniformly charging the photoreceptor, and a development assembly, including charged toner solids having a single polarity, for image-wise applying a layer of the toner solids to the latent image to form an initial developed toner image; (b) refining the initial developed toner image using an air breakdown charging assembly, including a relatively large magnitude voltage biasing source and a nip forming roll coupled thereto, for image-wise recharging of the single polarity toner solids layer forming the initial developed toner image. The air breakdown charging assembly induces an air breakdown electrical discharge wherein free mobile ions are introduced into a vicinity of the initial developed toner image, and the latent image underlying the initial developed toner image cooperates with the large magnitude voltage biasing source to cause free mobile ions to flow to toner solids of the initial developed toner image in an image-wise manner, thereby image-wise recharging toner solids of the initial developed toner image such that image area toner solids then have a first polarity, and background toner solids then have a second and relatively opposite polarity; and (c) separating the image area toner solids from the background area toner solids, so as to refine the initial developed toner image, thereby resulting in a high resolution, high quality refined final toner image consisting of the image area toner solids having highly clean background areas.

摘要翻译： 一种用于在静电印刷机中制造高质量调色剂图像的方法和装置。 使用该装置的方法包括（a）（a）使用包括用于均匀地对感光体充电的充电装置的第一调色剂图像形成组件在感光体上形成初始显影的调色剂图像，以及显影组件，其包括带有单个 用于将一层调色剂固体图像地施加到潜像以形成初始显影的调色剂图像; （b）使用空气击穿充电组件来精炼初始显影的调色剂图像，所述空气击穿充电组件包括相对较大的幅度电压偏压源和与其连接的辊隙成形辊，用于对形成初始显影的调色剂图像的单极性调色剂固体层进行图像再充电 。 空气击穿充电组件引起空气击穿放电，其中自由移动离子被引入到初始显影的调色剂图像的附近，并且初始显影的调色剂图像下面的潜像与大幅度电压偏压源协作以产生游离的移动离子 以图像方式流动到初始显影的调色剂图像的调色剂固体，由此对初始显影的调色剂图像的调色剂固体进行成像再充电，使得图像区域调色剂固体然后具有第一极性，并且背景调色剂固体具有 第二个和相对相反的极性; 并且（c）将图像区域调色剂固体与背景区域调色剂固体分离，以便细化初始显影的调色剂图像，从而得到由图像区域调色剂固体组成的高分辨率，高质量的最终调色剂图像，其具有高度干净 背景区域。