WO2022262306A1 - 一种激光打印机处理盒免藏粉式弹性控粉结构 - Google Patents

一种激光打印机处理盒免藏粉式弹性控粉结构 Download PDF

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WO2022262306A1
WO2022262306A1 PCT/CN2022/077985 CN2022077985W WO2022262306A1 WO 2022262306 A1 WO2022262306 A1 WO 2022262306A1 CN 2022077985 W CN2022077985 W CN 2022077985W WO 2022262306 A1 WO2022262306 A1 WO 2022262306A1
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powder
toner
elastic
strip
laser printer
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PCT/CN2022/077985
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English (en)
French (fr)
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曹国柱
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曹国柱
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Publication of WO2022262306A1 publication Critical patent/WO2022262306A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit

Definitions

  • the utility model relates to a laser printer, in particular to a powder storage-free elastic powder control structure.
  • Laser printers are currently commonly used equipment in offices and homes.
  • laser printers for household or office use mainly include a main body and a process box that can be disassembled from the main body.
  • the processing box is mainly composed of photosensitive drum, developing roller, powder bin shell and waste toner bin shell.
  • the photosensitive drum is installed in the waste toner bin shell; , there is a semi-circular groove in the shell of the powder bin, the two ends of the magnetic roller are located in the semi-circular groove, and there is a long strip of powder outlet between the semi-circular grooves, and a powder control scraper is installed in the powder bin shell. After the toner is absorbed, the toner is scraped flat by a powder control scraper and charged by friction.
  • the structure of the scraper includes an iron bracket and a rubber strip.
  • the iron bracket is fixed to the powder bin shell and the edge of the rubber strip is in contact with the developing roller.
  • the specific structure is as follows: the developing roller includes a magnetic core and an aluminum tube, and the powder silo wall of the powder silo shell is provided with installation convex strips and a powder outlet, and the powder outlet is sealed by a sealing strip, and the powder silo wall is located between the installation convex strip and the powder outlet.
  • the part between the powder outlets constitutes the sealing platform, and the side of the sealing rubber strip is welded and sealed with the sealing platform.
  • the iron bracket was fixed on the top surface of the installation convex strip, and then the rubber strip was pasted on the iron bracket, and then It extends out to contact the surface of the developing roller, thus forming a triangular-like powder storage area between the installation convex strip, rubber strip, and welding platform.
  • the rotation direction of the aluminum tube is facing this triangular area, and the inner magnetic core of the developing roller is added Due to the adsorption effect, the toner is easy to accumulate here and cannot be taken away by the developing roller to participate in the development or falls back into the toner bin to form toner residue, resulting in waste.
  • sealing powder sponges need to be provided at the two ends of the rubber strips, and the sealing is guaranteed by the elastic contact between the powder sealing sponges and the rubber strips.
  • the toner is easily charged with too much charge and forms agglomerates, but because the rubber strip and the surface of the developing roller can only be in line contact, it is difficult to scrape the toner evenly, and it is easy to produce Corrugated lines; and the elastic force of the two ends of the rubber strip is weaker than that of the middle part, so the powder control effect of the two ends is poor, resulting in black edges when printing.
  • the utility model provides a laser printer process box with a powder-free elastic powder-controlling structure.
  • a laser printer processing box with powder-free elastic powder control structure including a powder bin shell and a developing roller, the developing roller includes a magnetic core and an aluminum tube, and a mounting part is provided on the powder bin wall of the powder bin shell As well as the powder outlet, the installation part is provided with an elastic strip and the elastic strip is located between the installation part and the aluminum tube, the elastic strip has a working surface, and the working surface is in contact with the surface of the developing roller.
  • the installation part is an installation convex strip arranged on the wall of the powder bin, the installation convex strip includes an inner surface, the elastic strip is arranged on the inner surface, and the elastic strip is located in the powder storage area.
  • the elastic strip is provided with double-sided adhesive tape, and the elastic strip is pasted on the mounting convex strip through the double-sided adhesive tape.
  • a thin film is arranged on the elastic strip, and the working surface is the thin film surface.
  • It also includes a welding sealing part, the powder outlet is sealed by a sealing rubber strip, and the side of the sealing rubber strip is welded and sealed with the welding sealing part.
  • the working surface is a non-hole working surface.
  • the utility model adopts the elastic strip to control the powder, the elastic strip itself has good elasticity, and the working surface is in contact with the developing roller, the working surface is relatively smooth and has no large gaps, so it can prevent the carbon powder from clogging the gap and lose its elasticity and control the powder Uniform, and after the developing roller is in contact with the non-porous working surface, the working surface is bent and deformed to stick to the developing roller to form a surface contact, so it is easy to scrape the toner evenly, thereby improving the printing quality, and after installing the elastic strip, no need Then install the powder sealing sponge, and also replace the original high-cost iron frame powder knives, which simplifies the process, reduces the difficulty of installation, and saves costs.
  • the elastic strip is fixed on the inner surface to eliminate the powder storage area, thereby greatly reducing the accumulation of toner, and most of the toner can fully participate in printing, thus avoiding waste, being more environmentally friendly, and increasing the number of prints.
  • the weight of residual toner in the toner cartridge with the old structure is generally 8 grams, but after our improvement, the weight of residual toner is only about 2 grams.
  • Figure 1 is a structural diagram of the powder bin housing.
  • Fig. 2 is a structural view of the powder bin housing in another direction.
  • Fig. 3 is a schematic diagram of the contact between the elastic strip with the sealing platform of the powder bin shell and the developing roller.
  • Fig. 4 is a schematic diagram of the contact between the elastic strip without the sealing platform of the powder bin shell and the developing roller.
  • Figure 5 is a schematic diagram of the old structure of the rubber strip in contact with the developing roller.
  • the utility model discloses a powder-free elastic powder control structure for a laser printer processing box, which includes a powder bin shell 1 and a developing roller 2, and the developing roller includes a magnetic core and an aluminum tube.
  • the powder bin housing 1 is provided with a powder outlet 3
  • the powder bin wall 11 of the powder bin housing 1 is provided with an installation convex strip 5 and a powder outlet 3, and the powder outlet 3 passes through a sealing rubber strip (in the figure (not shown) sealing, the part of the powder bin wall 11 located between the installation convex strip 5 and the powder outlet 3 constitutes the welding seal 8, and the side of the sealing rubber strip is welded and sealed with the welding seal 8 for sealing the powder outlet
  • the sealant strip will be torn off during use.
  • the powder bin housing 1 is provided with an elastic strip 4.
  • the elastic strip 4 has a working surface that is in contact with the surface of the developing roller 2, that is, the elastic strip 4 is in contact with the developing roller 2.
  • the part in contact with the surface of the developing roller 2 is the working surface.
  • the working surface is preferably a non-porous working surface.
  • the elastic strip 4 preferably adopts a closed-cell sponge.
  • the closed-cell sponge is injected into a square strip in a mold and simultaneously forms a smooth surface.
  • the surface without holes, but because of the process or other reasons, the working surface may also have some small holes as small as the tip of a needle. The existence of these small holes has little impact on the elastic strip 4, because the working surface is in contact with the elastic strip 4 during work.
  • the surface of the developing roller 2 contacts and squeezes the working surface, so most of the small holes will be closed due to the squeeze, thereby preventing the carbon powder from clogging the gap and losing elasticity.
  • the elastic strip 4 is fixed on the installation convex strip 5, and the cross section of the installation convex strip 5 is L-shaped, which saves material.
  • the cross section of the installation convex strip 5 can also be square, etc., and the installation convex strip 5 Including an inner side 6, the inner side 6 refers to the side adjacent to the powder outlet 3, the elastic strip 4 is fixed on the inner side 6, the elastic strip 4 is provided with double-sided adhesive tape, and the elastic strip 4 passes through The double-sided tape is pasted on the inner side 6 of the installation convex strip 5.
  • the wall 11 of the powder bin is divided into two parts: the installation part and the welding part.
  • the outer surfaces of the mounting portion and the sealing portion 8 can be coplanar inclined surfaces, so that the working surface of the elastic strip 4 is in contact with the aluminum tube.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

一种激光打印机处理盒免藏粉式弹性控粉结构，包括粉仓壳体（1）及显影辊（2），显影辊（2）包含磁芯及铝管，粉仓壳体（1）的粉仓壁（11）上设有安装部以及出粉口（3），安装部上设有弹性条（4）且弹性条（4）位于安装部与铝管间，弹性条（4）具有一个工作面，工作面与显影辊（2）表面接触。具有免藏粉式弹性控粉结构的激光打印机处理盒不会导致堆积碳粉的情况，碳粉不会残留，都能充分参与打印，因而避免浪费、也比较环保，提高了打印数量和打印品质，而且安装了弹性条（4）后无需再安装封粉海绵，这样简化了工序、降低了安装难度，从而也节省了成本。

Description

一种激光打印机处理盒免藏粉式弹性控粉结构
本申请要求申请日为：2021-03-05的专利（专利名：一种激光打印机免藏粉式弹性控粉结构，专利申请号：2021204837152）的优先权。
技术领域
本实用新型涉及一种激光打印机，特别是一种免藏粉式弹性控粉结构。
 背景技术
激光打印机目前是办公及家庭常用的设备，一般家用或是办公用的激光打印机其主要包括主机体和一个可从主机体内拆装的处理盒构成。处理盒则主要由感光鼓、显影辊、粉仓壳体及废粉仓壳体这几个主要部分构成，感光鼓装于废粉仓壳体内；显影辊采用磁辊且装于粉仓壳体内，粉仓壳体内相对设有半圆槽，磁辊的两端位于半圆槽中，且半圆槽之间设有长条状的出粉口，粉仓壳体内还设有控粉刮刀，在显影辊将碳粉吸附后通过控粉刮刀将碳粉刮平并摩擦带上电荷，通常刮刀的结构是包括一个铁支架和橡胶条，铁支架与粉仓壳体固定同时橡胶条的边缘与显影辊接触，具体结构如下：显影辊包含磁芯及铝管，粉仓壳体的粉仓壁上设有安装凸条及出粉口，出粉口通过密封胶条密封，粉仓壁位于安装凸条与出粉口之间的部分构成焊封平台，密封胶条的侧边与焊封平台焊接密封，在以前结构中，铁支架固定于安装凸条顶面，然后橡胶条粘贴在铁支架上，然后延伸出去与显影辊表面接触，因而在安装凸条、橡胶条、焊封平台间形成一个类似三角形的藏粉区域，同时由于铝管的旋转方向朝向这个三角区域，而且加上显影辊内磁芯的吸附作用，碳粉容易在此处一直堆积而不能被显影辊带走参与显影或是掉回到粉仓中形成碳粉残留，从而造成浪费。
而且以前的结构为了保证工作时的密封，橡胶条的两端的位置需要设置封粉海绵，通过封粉海绵与橡胶条的弹性接触而保证密封。而且在冬天干燥的时候，由于碳粉容易带上过高的电荷而成团，但是因为橡胶条与显影辊表面只能是线接触，因而很难将碳粉刮散均匀，最终打印时容易产生波纹样线条；而且橡胶条的两端部弹性力相对于中部的弹性力要弱，因而两端部控粉效果要差点，导致打印时容易出黑边。
综上所述，我们需要对上述的控粉结构重新设计，从而避免上述缺陷。
 技术解决方案
为了克服现有技术的不足，本实用新型提供一种激光打印机处理盒免藏粉式弹性控粉结构。
本实用新型解决其技术问题所采用的技术方案是。
一种激光打印机处理盒免藏粉式弹性控粉结构，包括粉仓壳体及显影辊，所述显影辊包含磁芯及铝管，所述粉仓壳体的粉仓壁上设有安装部以及出粉口，所述安装部上设有弹性条且该弹性条位于安装部与铝管间，所述弹性条具有一个工作面，该工作面与显影辊表面接触。
所述安装部为设置于粉仓壁上的安装凸条，所述安装凸条包括一内侧面，弹性条设置于内侧面上，且该弹性条位于藏粉区域中。
所述弹性条上设有双面胶，弹性条通过双面胶粘贴于安装凸条上。
所述弹性条上设有薄膜，所述工作面为薄膜表面。
还包括焊封部，出粉口通过密封胶条密封，且密封胶条的侧边与焊封部焊接密封。
所述工作面为非孔工作面。
 有益效果
本实用新型采用弹性条进行控粉，弹性条本身弹性好，而且通过工作面与显影辊进行接触，工作面比较光滑且无较大的空隙，因而能够防止碳粉堵塞空隙而失去弹性且控粉均匀，而且显影辊与非孔工作面接触挤压后，工作面弯曲变形贴在显影辊上形成面接触，因而容易将碳粉刮散均匀，从而提高了打印品质，而且安装了弹性条后无需再安装封粉海绵，同时也取代了原有高成本的铁架出粉刀，这样简化了工序、降低了安装难度，从而也节省了成本。
而且弹性条固定于内侧面上就消除了藏粉区域，因而大大减少了堆积碳粉的情况，大部分碳粉都能充分参与打印，因而避免浪费、也比较环保，提高了打印数量。经过我司实测，旧有结构的硒鼓中残余碳粉的重量一般为8克，而经过我司改良后残余碳粉的重量只有2克左右。
 附图说明
下面结合附图和实施例对本实用新型进一步说明。
图1是粉仓壳体的结构图。
图2是粉仓壳体另一方向的结构图。
图3是粉仓壳体有焊封平台的弹性条与显影辊接触的示意图。
图4是粉仓壳体没有焊封平台的弹性条与显影辊接触的示意图。
    图5是旧有结构的橡胶条与显影辊接触的示意图。
 本发明的最佳实施方式
参照图1至图3，本实用新型公开了一种激光打印机处理盒免藏粉式弹性控粉结构， 包括粉仓壳体1及显影辊2，所述显影辊包含磁芯及铝管，所述粉仓壳体1上设有出粉口3，所述粉仓壳体1的粉仓壁11上设有安装凸条5及出粉口3，出粉口3通过密封胶条（图中未显示出）密封，所述粉仓壁11位于安装凸条5与出粉口3之间的部分构成焊封部8，密封胶条的侧边与焊封部8焊接密封用于封闭出粉口，使用时会将密封胶条撕掉，所述粉仓壳体1上设有弹性条4，该弹性条4具有一个工作面，该工作面与显影辊2表面接触，即弹性条4与显影辊2表面接触的部分为工作面，在本申请中，工作面优选是非孔工作面，弹性条4优选采用了闭孔海绵，闭孔海绵在模具中注塑成方形条且同时会形成一个光滑的没有孔的表面，但是因为工艺或其它原因，工作面也可能具有一些如针尖般大小的小孔，这些小孔的存在对弹性条4的影响也不大，因为在工作时工作面是与显影辊2表面接触而对工作面有挤压，因而大部分的小孔会因为挤压而会闭合，从而也能防止碳粉堵塞空隙而失去弹性。当然我们也可以采用普通的海绵，然后在海绵上裹上一层薄膜形成工作面，但是该方法不如直接采用闭孔海绵形成工作面简单。
如图所示，所述弹性条4固定于安装凸条5上，安装凸条5的横截面为L形，节省材料，当然安装凸条5的横截面也可为方形等，安装凸条5包括一内侧面6，该内侧面6是指与出粉口3相邻的一面，所述弹性条4固定于内侧面6上，所述弹性条4上设有双面胶，弹性条4通过双面胶粘贴于安装凸条5的内侧面6上，当然不仅限于该种安装方式，我们还可以采用其他的方式安装，而且为了保证弹性条4与显影辊2接触的位置不在边缘上，我们还会对安装凸条5进行加高，相比以前铁支架9固定于安装凸条5顶面，然后橡胶条10粘贴在铁支架9上，然后延伸出去与显影辊2表面接触的结构，现在弹性条4固定于内侧面6上就消除了这个三角形的藏粉区域7，因而大大减轻了堆积碳粉的情况，大部分碳粉都能充分参与打印，因而避免浪费也比较环保。
当然上述是本申请的结构一，本申请的还有另一种结构二也可以实现避免藏粉，结构二与结构一不同的地方在于：结构二无需设置安装凸条5，这样也消除了藏粉区域，粉仓壁11上划分出安装部和焊封部两个部分，安装部的部分粘贴弹性条，而焊封部的部分与密封胶条的侧边焊接密封，为了保证弹性条4与显影辊2接触，安装部和焊封部8的外表面可以为共面的斜面，这样就便于弹性条4的工作面与铝管接触。
参照图4，该种结构与之前的结构的区别在于没有焊封平台及密封胶条，其余结构完全相同，因而不具体详述。
以上对本实用新型实施例所提供的一种激光打印机处理盒免藏粉式弹性控粉结构，进行了详细介绍，本文中应用了具体个例对本实用新型的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本实用新型的方法及其核心思想；同时，对于本领域的一般技术人员，依据本实用新型的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本实用新型的限制。

Claims (6)

  1. 一种激光打印机处理盒免藏粉式弹性控粉结构，包括粉仓壳体及显影辊，所述显影辊包含磁芯及铝管，所述粉仓壳体的粉仓壁上设有安装部以及出粉口，所述安装部上设有弹性条且该弹性条位于安装部与铝管间，所述弹性条具有一个工作面，该工作面与显影辊表面接触。
  2. 根据权利要求1所述的一种激光打印机处理盒免藏粉式弹性控粉结构，其特征在于：所述安装部为设置于粉仓壁上的安装凸条，所述安装凸条包括一内侧面，弹性条设置于内侧面上，且该弹性条位于藏粉区域中。
  3. 根据权利要求2所述的一种激光打印机处理盒免藏粉式弹性控粉结构，其特征在于：所述弹性条上设有双面胶，弹性条通过双面胶粘贴于安装凸条上。
  4. 根据权利要求1所述的一种激光打印机处理盒免藏粉式弹性控粉结构，其特征在于：所述弹性条上设有薄膜，所述工作面为薄膜表面。
  5. 根据权利要求1所述的一种激光打印机处理盒免藏粉式弹性控粉结构，其特征在于：还包括焊封部，出粉口通过密封胶条密封，且密封胶条的侧边与焊封部焊接密封。
  6. 根据权利要求1所述的一种激光打印机处理盒免藏粉式弹性控粉结构，其特征在于：所述工作面为非孔工作面。
PCT/CN2022/077985 2021-03-05 2022-02-25 一种激光打印机处理盒免藏粉式弹性控粉结构 WO2022262306A1 (zh)

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CN214795581U (zh) * 2021-03-05 2021-11-19 中山市奔码打印耗材有限公司 一种激光打印机处理盒免藏粉式弹性控粉结构

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