CN210666345U - Developing box conducting mechanism - Google Patents
Developing box conducting mechanism Download PDFInfo
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- CN210666345U CN210666345U CN201921627547.9U CN201921627547U CN210666345U CN 210666345 U CN210666345 U CN 210666345U CN 201921627547 U CN201921627547 U CN 201921627547U CN 210666345 U CN210666345 U CN 210666345U
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Abstract
A conductive mechanism of a developing box comprises a charging roller and a conductive connecting sheet, wherein the charging roller comprises a charging shaft and a conductive layer, the conductive layer is annularly arranged on the circumferential surface of the charging shaft, and the shaft diameter of the charging shaft is 5.0-6.0 mm; the conductive connecting sheet comprises a first contact sheet end, a connecting sheet and a second contact sheet end, and the two ends of the connecting sheet are respectively connected with the first contact sheet end and the second contact sheet end; the first contact sheet end protrudes towards the first direction relative to the connecting sheet, and the first contact sheet end is abutted against the end face of the charging shaft; the second contact sheet end protrudes towards the second direction relative to the connecting sheet, and the second contact sheet end can be abutted against the power supply part of the printer; the first direction and the second direction are opposite directions. The utility model provides a developing box electrically conducts mechanism, this developing box electrically conducts mechanism and printer power supply portion contact stability, has guaranteed the electric connection stability, and then guarantees that the roller that charges fills the effect of even charge to the photosensitive medium surface.
Description
Technical Field
The utility model relates to a technical field of printing consumables especially relates to a developing box electrically conducts mechanism.
Background
Image forming apparatuses using an electrophotographic method, such as laser printers, photo copiers, facsimile machines, and multifunction products, are apparatuses for forming images by charging a photosensitive medium with a charging roller to have a uniform electric potential, scanning light modulated to correspond to image information onto the photosensitive medium using an optical scanning unit to form an electrostatic latent image on the photosensitive medium, supplying toner to the electrostatic latent image using a developing unit to form a toner image, transferring the toner image onto a printing medium, and fusing the toner image on the printing medium by heating the toner image to form an image on the printing medium.
The core component of the imaging device is a photosensitive medium which is an important basis for forming images (electrostatic latent images and toner images), a charging roller is composed of a metal core and a conductive elastic layer coated outside the metal core, and the charging roller is used for charging the surface of the photosensitive medium with uniform charges. CN201280068714.5 discloses a charging roller, as shown in fig. 4, the charging roller comprises an inner conductive shaft 2 made of steel or aluminum, and a rubber conductive layer 3, the rubber conductive layer 3 is disposed around the inner conductive shaft 2 and extends along at least a part of the length of the inner conductive shaft 2, and both ends of the inner conductive shaft 2 are disposed in a step shape, that is, the diameter width of the end of the inner conductive shaft 2 is smaller than that of the inner conductive shaft 2, the step shape makes the processing process thereof more complicated, and the area of the end surface contacting the power supply part becomes smaller due to the smaller diameter width of the end, that is, the smaller area of the end surface, thus directly affecting the power supply of the charging roller by the printer, further affecting the effect of the charging roller on charging the surface of the photosensitive medium with uniform charges, and further resulting in the deterioration of the printing quality.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a developing box electrically conducts mechanism solves the problem that above-mentioned prior art exists, and this developing box electrically conducts mechanism and printer power supply portion contact stability, has guaranteed the electric connection stability, and then guarantees that the roller that charges fills the effect of even electric charge to the photosensitive medium surface.
In order to achieve the above object, the present invention provides the following technical solutions:
a developing box conductive mechanism comprises a charging roller and a conductive connecting sheet, wherein the charging roller comprises a charging shaft and a conductive layer, the conductive layer is annularly arranged on the peripheral surface of the charging shaft, and the shaft diameter of the charging shaft is 5.0-6.0 mm; the conductive connecting sheet comprises a first contact sheet end, a connecting sheet and a second contact sheet end, and two ends of the connecting sheet are respectively connected with the first contact sheet end and the second contact sheet end; the first contact sheet end protrudes towards a first direction relative to the connecting sheet, and abuts against the end face of the charging shaft; the second contact sheet end protrudes towards a second direction relative to the connecting sheet, and can be abutted against a power supply part of the printer; the first direction and the second direction are opposite directions.
Further, the connecting piece is L-shaped or Z-shaped.
Further, the first contact piece end includes at least one contact plane, and at least a portion of the contact plane is in contact with an end surface of the charging shaft.
Further, the second contact pad end includes at least one contact plane.
Further, the contact plane is square.
Furthermore, the conductive mechanism of the developing box further comprises a protective cover, the protective cover is provided with a first positioning hole, a second positioning hole and a connecting window, the first positioning hole and the second positioning hole are arranged at the diagonal positions of the protective cover, and the end of the second contact piece penetrates through the connecting window.
The utility model has the advantages that:
the utility model provides a conductive mechanism of a developing box, which comprises a charging roller and a conductive connecting sheet, wherein the charging roller comprises a charging shaft and a conductive layer, the conductive layer is annularly arranged on the peripheral surface of the charging shaft, and the shaft diameter of the charging shaft is 5.0 mm-6.0 mm; the conductive connecting sheet comprises a first contact sheet end, a connecting sheet and a second contact sheet end, and the two ends of the connecting sheet are respectively connected with the first contact sheet end and the second contact sheet end; the first contact sheet end protrudes towards the first direction relative to the connecting sheet, and the first contact sheet end is abutted against the end face of the charging shaft; the second contact sheet end protrudes towards the second direction relative to the connecting sheet, and the second contact sheet end can be abutted against the power supply part of the printer; the first direction and the second direction are opposite directions. The technical characteristics can obtain that the shaft diameter of the charging shaft is 5.0-6.0 mm, the end surface area of the charging shaft is larger, the contact area between the charging shaft and the first contact sheet end is ensured, and the electric connection stability is improved; in addition, the charging shaft is electrically connected with the power supply part of the printer through the conductive connecting sheet, specifically, the end face of the first protruding contact sheet is abutted to the charging shaft, the end face of the second protruding contact sheet is abutted to the power supply part of the printer, and the first contact sheet end and the second contact sheet end are connected through the connecting sheet, so that the power supply stability of the printer to the charging shaft is high, and the printing quality is ensured. The utility model provides a developing box electrically conducts mechanism solves the problem that prior art exists, and this developing box electrically conducts mechanism and printer power supply portion contact stability, has guaranteed the electric connection stability, and then guarantees that the roller that charges fills the effect of even electric charge to the photosensitive medium surface.
Drawings
Fig. 1 is a schematic structural view of a developing cartridge conductive mechanism according to an embodiment of the present invention;
fig. 2 is a schematic view of the conductive mechanism of the developing cartridge according to the embodiment of the present invention mounted on the developing cartridge;
fig. 3 is a schematic view of the conductive mechanism of the developing cartridge according to the embodiment of the present invention, which is installed on the developing cartridge and then the protective cover is detached;
fig. 4 is a schematic structural view of a developing roller according to the prior art.
In the figure, 2-inner conductive shaft, 3-rubber conductive layer, 10-charging roller, 11-charging shaft, 111-end face, 12-conductive layer, 20-conductive connecting sheet, 21-first contact sheet end, 22-connecting sheet, 23-second contact sheet end, 30-first direction, 40-second direction, 50-protective cover, 51-first positioning hole, 52-second positioning hole, 53-connecting window, 60-developing box side end, 61-third positioning hole, 62-fourth positioning hole, 63-positioning column, 70-screw
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, fig. 1 is the structural schematic diagram of the electrically conductive mechanism of developing box of the embodiment of the present invention, fig. 2 is the electrically conductive mechanism of developing box of the embodiment of the present invention installs the schematic diagram at developing box, fig. 3 is the electrically conductive mechanism of developing box of the embodiment of the present invention installs the schematic diagram of unloading the visor after developing box.
The utility model provides a developing box electrically conducts mechanism, this developing box electrically conducts mechanism and printer power supply portion contact stability, has guaranteed the electric connection stability, and then guarantees that the roller that charges fills the effect of even charge to the photosensitive medium surface.
Referring to fig. 1-3 in particular, the conductive mechanism of the developing cartridge of the present invention includes a charging roller 10 and a conductive connecting sheet 20, the charging roller 10 includes a charging shaft 11 and a conductive layer 12, the conductive layer 12 is disposed around the charging shaft 11, the charging shaft 11 is usually made of steel or aluminum, the charging shaft 11 is disposed in a straight-through manner, the shaft diameter of the charging shaft 11 is 5.0 mm-6.0 mm, and thus the area of the end surface 111 is 19.625mm 2-28.26 mm 2; the conductive connecting sheet 20 is made of conductive material, the conductive connecting sheet 20 comprises a first contact sheet end 21, a connecting sheet 22 and a second contact sheet end 23, preferably, the connecting sheet 22 is L-shaped or Z-shaped, is skillfully designed and is suitable for the structural arrangement in the developing box, and two ends of the connecting sheet 22 are respectively connected with the first contact sheet end 21 and the second contact sheet end 23; the first contact piece end 21 protrudes in the first direction 30 with respect to the connection piece 22, and the first contact piece end 21 abuts against the end surface 111 of the charging shaft 11; the second contact piece end 23 protrudes in the second direction 40 with respect to the connection piece 22, and the second contact piece end 23 can abut against a printer power supply portion (not shown); the second direction 40 is a direction perpendicular to the outer surface of the connecting piece 22, the first direction 30 is opposite to the second direction 40, and the first direction 30 may be perpendicular to or parallel to the second direction 40.
In the embodiment, the shaft diameter of the charging shaft 11 is 5.0mm to 6.0mm, so that the area of the end surface of the charging shaft 11 is large, the contact area between the charging shaft and the first contact piece end 21 is ensured, and the electrical connection stability is improved; in addition, the charging shaft 11 is electrically connected with the power supply part of the printer through the conductive connecting sheet 20, specifically, the end of the protruded first contact piece 21 is abutted to the end surface 111 of the charging shaft 11, the end of the protruded second contact piece 23 is abutted to the power supply part of the printer, and the first contact piece end 21 and the second contact piece end 23 are connected through the connecting sheet 22, so that the power supply stability of the printer to the charging shaft 11 is high, and the technical effect of ensuring the printing quality is achieved.
In this embodiment, referring to fig. 1, when the first direction 30 can intersect the second direction 40, the first contact piece end 21 is disposed in an inclined manner, the first contact piece end 21 includes at least one contact plane, and at least a portion of the contact plane is in contact with the end surface 111 of the charging shaft 11, specifically, the contact plane may be a line contact or a surface contact, which is ingenious in design and further improves the electrical connection stability.
Furthermore, referring to fig. 1, the second contact sheet end 23 includes at least one contact plane, preferably a square contact plane, which is guaranteed to abut against the power supply portion of the printer, improving the stability of the electrical connection.
In this embodiment, the conductive mechanism of the developing cartridge further includes a protective cover 50, and the protective cover 50 is provided with a first positioning hole 51, two second positioning holes 52 and a connecting window 53, the first positioning hole 51 and one of the second positioning holes 52 are disposed at opposite corners of the protective cover 50, the other second positioning hole 52 is disposed adjacent to the first positioning hole 51, and the second contact terminal 23 passes through the connecting window 53 to abut against the power supply portion of the printer. The protective cover 50 protects the conductive mechanism of the developing cartridge, when the conductive mechanism of the developing cartridge is mounted on the side end 60 of the developing cartridge, the protective cover 50 is mounted, specifically, the protective cover 50 is matched and positioned with the positioning post 63 of the side end 60 of the developing cartridge through the second positioning hole 52, and then the protective cover 50 is locked and fixed on the side end 60 of the developing cartridge through the third positioning hole 63 and the fourth positioning hole 64 of the side end 60 of the developing cartridge matched through the two second positioning holes 52 by using a screw (for example, a screw 70), and the second contact piece end 23 passes through the connecting window 53 and abuts against the power supply part of the printer to supply power.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the solutions should be covered in the scope of the claims of the present invention.
Claims (6)
1. A developing box conducting mechanism is characterized in that:
the conductive mechanism of the developing box comprises a charging roller and a conductive connecting sheet, wherein,
the charging roller comprises a charging shaft and a conducting layer, the conducting layer is annularly arranged on the peripheral surface of the charging shaft, and the shaft diameter of the charging shaft is 5.0-6.0 mm;
the conductive connecting sheet comprises a first contact sheet end, a connecting sheet and a second contact sheet end, and two ends of the connecting sheet are respectively connected with the first contact sheet end and the second contact sheet end;
the first contact sheet end protrudes towards a first direction relative to the connecting sheet, and abuts against the end face of the charging shaft;
the second contact sheet end protrudes towards a second direction relative to the connecting sheet, and can be abutted against a power supply part of the printer;
the first direction and the second direction are opposite directions.
2. A developing cartridge conductive mechanism according to claim 1, wherein: the connecting piece is L-shaped or Z-shaped.
3. A developing cartridge conductive mechanism according to claim 1, wherein: the first contact piece end includes at least one contact plane, and at least a portion of the contact plane is in contact with an end surface of the charging shaft.
4. A developing cartridge conductive mechanism according to claim 1, wherein: the second contact pad end includes at least one contact plane.
5. A developing cartridge conductive mechanism according to claim 4, wherein: the contact plane is square.
6. A developing cartridge conductive mechanism according to any one of claims 1 to 5, wherein: the developing box conducting mechanism further comprises a protective cover, the protective cover is provided with a first positioning hole, a second positioning hole and a connecting window, the first positioning hole and the second positioning hole are arranged at the opposite corners of the protective cover, and the second contact piece end penetrates through the connecting window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627547.9U CN210666345U (en) | 2019-09-27 | 2019-09-27 | Developing box conducting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627547.9U CN210666345U (en) | 2019-09-27 | 2019-09-27 | Developing box conducting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210666345U true CN210666345U (en) | 2020-06-02 |
Family
ID=70845953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921627547.9U Active CN210666345U (en) | 2019-09-27 | 2019-09-27 | Developing box conducting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210666345U (en) |
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2019
- 2019-09-27 CN CN201921627547.9U patent/CN210666345U/en active Active
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