CN200989998Y - Developing box - Google Patents
Developing box Download PDFInfo
- Publication number
- CN200989998Y CN200989998Y CNU2006201556650U CN200620155665U CN200989998Y CN 200989998 Y CN200989998 Y CN 200989998Y CN U2006201556650 U CNU2006201556650 U CN U2006201556650U CN 200620155665 U CN200620155665 U CN 200620155665U CN 200989998 Y CN200989998 Y CN 200989998Y
- Authority
- CN
- China
- Prior art keywords
- box
- developer roll
- delevoping cartridge
- gear
- sidewall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Configuration And Component (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The utility model provides a development box which is connected with a sensitization drum in an assembling and disassembling way and can be used to match the sensitization drum. The utility model comprises a box with a powder container, a development roller rotatablely fixed at an outlet of the powder container. One end of a spindle of the development roller extends out of a sidewall of the box and is provided with a rotatable shaft sleeve; while the other end extends out of the other sidewall of the box and fixes a gear. A gear system protecting cover is fixed at the outside of the sidewall. A guide pole which shares the same axis with the development roller spindle is arranged outside the protection cover. As the length of the development roller spindle is comparatively short, the flexing resistance of the spindle can be strengthened and the rate of finished product of the processing can also be increased. In addition, the problem of the gear end of the development box wearing the guide groove of the sensitization drum is avoided, thus enhancing the quality of development.
Description
Technical field
The utility model relates to a kind of laser printer Delevoping cartridge, particularly a kind of and the detachable Delevoping cartridge that is connected and is used of photosensitive drums box.
Background technology
At present, a kind of carbon powder cartridge for laser printer is arranged on the market, this cartridge comprise Delevoping cartridge with the detachable photosensitive drums box that is connected of Delevoping cartridge.The photosensitive drums box comprises box body and rotatably is fixed on photosensitive drums between the box body two side, the photosensitive drums box body has a Delevoping cartridge to be held the storehouse and enters in this storehouse uncovered for Delevoping cartridge, and its two side respectively is provided with gathering sill 14 (see figure 2)s, also be provided with a Fastening device on the photosensitive drums box body, be used to force pack into the developer roll of the Delevoping cartridge that holds the storehouse to engage with photosensitive drums.The structure of Delevoping cartridge has one to store the powder storehouse of carbon dust and rotatably be fixed on puddle support and powder feeding roller in the powder storehouse as shown in Figure 1 in the box body 11, developer roll 12 mandrels rotatably are fixed on the meal outlet place of box body 11.One end of developer roll 12 mandrels is the sidewall that conducting end is stretched out box body 11, and the other end is another sidewall and transmission gear that gear end is passed box body 11 successively, and two axle sleeves 13 are enclosed within the conducting end and the gear end of developer roll mandrel respectively.When photosensitive drums box that Delevoping cartridge is packed into holds in the process in storehouse, axle sleeve 13 slides into the gathering sill end along gathering sill 14.Fastening device is pressing the box body 11 of Delevoping cartridge to make axle sleeve 13 slide to gathering sill 14 bottoms.
In above-mentioned Delevoping cartridge, because stretching out two sidewalls of box body, the two ends of developer roll mandrel cooperate with axle sleeve, the mandrel of developer roll will be done longly, and axle diameter is less, be approximately 7 millimeters, this has brought difficulty with regard to the processing of giving mandrel, has reduced the yield rate of axle.In addition, very thin mandrel is because span is excessive, easily deflection deformation under the situation of radial force, the moment of torsion during the developer roll rotation increases, and this can influence the normal rotation of developer roll on the one hand, when moment of torsion acquires a certain degree, the developer roll mandrel will drive axle sleeve and rotate together, also be the relative gathering sill rotation of axle sleeve, the gathering sill wearing and tearing that non-high-abrasive material is made, thereby the relative position of developer roll and photosensitive drums is changed, and promptly the axis parallel degree of developer roll and photosensitive drums changes; On the other hand, also influence the flatness of developer roll, these all can reduce the development quality.
Summary of the invention
The purpose of this utility model provides a kind of Delevoping cartridge that improves the finished product rate, is convenient to process and improve print quality.
To achieve these goals, the Delevoping cartridge that provides of the utility model comprises box body with powder storehouse, rotatably is fixed on the developer roll of meal outlet in the powder storehouse.Developer roll mandrel one end stretches out box side wall, and rotatable axle sleeve is housed.The other end of developer roll stretches out another sidewall of box body and fixes a gear, and the external stability one gear train protecting cover of this sidewall, the protecting cover outside be provided with one with the guidepost of developer roll mandrel coaxial line.When Delevoping cartridge is packed into and photosensitive drums box when holding the storehouse, axle sleeve and guidepost cooperate with the gathering sill at photosensitive drums box two ends respectively.
By above scheme as seen, the gear end of developer roll mandrel is not stretched out the gear outside, with respect to existing Delevoping cartridge, developer roll mandrel of the present utility model is shorter relatively, improve the warp resistance intensity of mandrel, improved the yield rate of processing simultaneously, also improved the development quality.Gear end at box body, substitute the axle sleeve that has the development mandrel now with the guidepost on the protecting cover, it can cooperate with the gathering sill on the photosensitive drums box equally, has effectively avoided the gathering sill wear problems, thereby stablized the relative position between developer roll and the photosensitive drums, improved the development quality.
Description of drawings
Fig. 1 is existing Delevoping cartridge structural representation;
Fig. 2 is the synoptic diagram of existing Delevoping cartridge axle sleeve and guiding groove section separation structure when packing the photosensitive drums box into;
Fig. 3 is the structural drawing of embodiment Delevoping cartridge;
Fig. 4 is the part exploded view of embodiment Delevoping cartridge structure.
Below in conjunction with the diagram and most preferred embodiment the utility model is described in further detail.
Embodiment
Referring to Fig. 3, Delevoping cartridge comprises box body 1, developer roll 2, axle sleeve 3 and protecting cover 4.Be useful on the powder storehouse that stores carbon dust in the box body 1 and rotatably be fixed on puddle support and powder feeding roller in the powder storehouse.Developer roll 2 is arranged on the meal outlet place of box body 1, and two ends are rotatably mounted on the sidewall of box body 1, developer roll 2 box body 1 rotation relatively.
Referring to Fig. 4, developer roll 2 comprises the metal mandrel and is coated on the outer conductive rubber layer of mandrel that conducting end and the gear end that conductive rubber layer forms developer roll stretched out at the mandrel two ends.The conducting end 21 of developer roll 2 and gear end are stretched out respectively and rotatably are fixed on the sidewall at box body 1 two ends.Gear end is stretched out connection gear behind the sidewall, and its end face flushes with the gear outer face substantially.The inner cylinder face slightly larger in diameter that is roughly axle sleeve 3 cylindraceous is in the diameter of developer roll conducting end 21, and external cylindrical surface is slightly less than the width of photosensitive drums box " U " type guide rail.After such structure made that axle sleeve 3 is enclosed within developer roll conducting end 21, the two can rotate relatively, and packed the photosensitive drums box into when holding the storehouse when Delevoping cartridge, and axle sleeve 3 forms with photosensitive drums box gathering sill and is slidingly matched.Protecting cover 4 is fixed on the gear end of box body 1, plays to gear train location and protective effect.There is a shape of stretching out the laterally cylindric guidepost 41 similar to the cylindrical portions may of axle sleeve 3 front portion of protecting cover 4, when protecting cover 4 is fixed on the gear end of box body 1, and the axis conllinear of the axis of guidepost 41 and developer roll.The external cylindrical surface of guidepost 41 is slightly less than the width of photosensitive drums box " U " type gathering sill straight, and Delevoping cartridge is packed the photosensitive drums box into when holding the storehouse, and guidepost 41 forms with photosensitive drums box gathering sill and is slidingly matched.
As seen from Figure 4, the end face of the gear end of developer roll 2 flushes with the gear outer face substantially, compare with the developer roll 12 among Fig. 1, developer roll 2 mandrel contraction in lengths a lot, help improving mandrel yield rate, reduce difficulty of processing and save cost.After Delevoping cartridge is packed in the photosensitive drums box, the guidepost 41 on the protecting cover and the axle sleeve of developer roll conducting end respectively with photosensitive drums box two side on gathering sill form and cooperate.
Claims (3)
1, Delevoping cartridge comprises:
Box body with powder storehouse;
Rotatably be fixed on the developer roll of meal outlet in the powder storehouse, developer roll mandrel one end stretches out box side wall, and rotatable axle sleeve is housed;
It is characterized in that:
The other end of developer roll mandrel stretches out another sidewall of box body and fixes a gear, and the external stability one gear train protecting cover of this sidewall, the protecting cover outside be provided with one with the guidepost of developer roll mandrel coaxial line.
2, Delevoping cartridge according to claim 1 is characterized in that:
The conducting end clearance fit of described axle sleeve and described developer roll.
3, Delevoping cartridge according to claim 1 and 2 is characterized in that:
Described guidepost and described axle sleeve all with the photosensitive drums box on gathering sill be slidingly matched.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201556650U CN200989998Y (en) | 2006-12-27 | 2006-12-27 | Developing box |
| PCT/CN2007/071255 WO2008077342A1 (en) | 2006-12-27 | 2007-12-18 | Developing cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201556650U CN200989998Y (en) | 2006-12-27 | 2006-12-27 | Developing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989998Y true CN200989998Y (en) | 2007-12-12 |
Family
ID=38941034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201556650U Expired - Lifetime CN200989998Y (en) | 2006-12-27 | 2006-12-27 | Developing box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN200989998Y (en) |
| WO (1) | WO2008077342A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11143226A (en) * | 1997-11-11 | 1999-05-28 | Canon Inc | Process cartridge and developing device |
| CN1328630C (en) * | 2002-02-05 | 2007-07-25 | 珠海天威飞马打印耗材有限公司 | Universal powder box |
| JP3997817B2 (en) * | 2002-04-02 | 2007-10-24 | ブラザー工業株式会社 | Developing device and image forming apparatus |
| CN2565051Y (en) * | 2002-09-06 | 2003-08-06 | 珠海天威飞马打印耗材有限公司 | Carbon dust box with mounting positioning mechanism |
| JP2004264757A (en) * | 2003-03-04 | 2004-09-24 | Seiko Epson Corp | Protective cover of development cartridge |
-
2006
- 2006-12-27 CN CNU2006201556650U patent/CN200989998Y/en not_active Expired - Lifetime
-
2007
- 2007-12-18 WO PCT/CN2007/071255 patent/WO2008077342A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008077342A1 (en) | 2008-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071212 |
|
| EXPY | Termination of patent right or utility model |