CN202394043U - Image fixing device - Google Patents
Image fixing device Download PDFInfo
- Publication number
- CN202394043U CN202394043U CN2011205608602U CN201120560860U CN202394043U CN 202394043 U CN202394043 U CN 202394043U CN 2011205608602 U CN2011205608602 U CN 2011205608602U CN 201120560860 U CN201120560860 U CN 201120560860U CN 202394043 U CN202394043 U CN 202394043U
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- CN
- China
- Prior art keywords
- fixing
- roller
- fixing roller
- fixing device
- backer roll
- 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 - Fee Related
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- Fixing For Electrophotography (AREA)
Abstract
The utility model discloses an image fixing device, which comprises a fixing roller, a pressing roller and a conveying mechanism for conveying paper. The fixing roller and the pressing roller are placed in an up and down mode, a fixing roller gap portion is formed between the fixing roller and the pressing roller, heating components are respectively arranged in the fixing roller and the pressing roller, and preheating units are respectively arranged on the circumferences of the fixing roller and the pressing roller. By means of the pressing roller, preheating of the image fixing device is rapid, the fixing roller and the pressing roller can be helped to maintain surface target temperatures, high enough temperatures can be guaranteed to perform heating and image fixing to the paper, and the image fixing effect of the image fixing device is improved and suitable for high-speed image fixing.
Description
Technical field
The utility model relates to the fixing device technical field, refers in particular to the printer fixing device that a kind of preheating is fast, be suitable for the high speed photographic fixing.
Background technology
The carbon dust image fixing is comprised that to the traditional fixing device on the paper surface inside has the fixing roller and the backer roll of heating unit; Conveying mechanism with the paper transmission through the roll gap part between fixing roller and the warm-up mill, thereby and heating and pressurizing with the carbon dust image fixing to paper.
In such fixing device; For with the carbon dust image fixing to the paper that moves and do not destroy the quality of image; Must keep the target temperature of fixing roller and backer roll; Carbon dust image with to the roll gap part provides heat, if temperature is too high or too low, may cause being called as the image deflects of " skew " or " photographic fixing defective ".Therefore, the proper temperature of keeping fixing roller and backer roll is very important.
Yet soon, the firing rate on the surface of fixing roller and backer roll is slow after the opening power; Though reached certain temperature through heating operation; But the surface temperature of fixing roller and backer roll still maybe be lower, when the transporting velocity of conveying mechanism when very fast, carbon dust fails to melt photographic fixing fully on paper; Reduce like speed, be unfavorable for the raising of printing effect.
Summary of the invention
The purpose of the utility model is that the deficiency to prior art provides a kind of fixing device, and this fixing device preheating is fast, can stablize to be in target temperature, and photographic fixing is effective and be suitable for the high speed photographic fixing.
For realizing above-mentioned purpose, the utility model is realized through following technical scheme.
A kind of fixing device; Comprise fixing roller, backer roll and be used for the conveying mechanism of conveyance of sheets; Fixing roller and backer roll are presented held; Form fusing nip portion between fixing roller and the backer roll, fixing roller and backer roll inside are respectively arranged with heating element, are respectively arranged with preheating device on the circumferential edge of said fixing roller and backer roll.
Furthermore, in the technique scheme, said preheating device is the warm-up mill that is built-in with heater.
Furthermore, in the technique scheme, said heater is a fluorescent tube.
Furthermore, in the technique scheme, said heating element is a fluorescent tube.
Furthermore, in the technique scheme, said conveying mechanism comprises conveying belt and driven unit.
The beneficial effect that the utility model has owing to the employing technique scheme: the utility model is simple in structure; Through on fixing roller and backer roll circumferential edge, preheating device being set; Make the fixing device preheating fast; Can help fixing roller and backer roll to keep the target temperature on surface, have sufficiently high temperature when guaranteeing photographic fixing paper is carried out heat fixer, photographic fixing is effective and be suitable for the high speed photographic fixing.
Description of drawings
Fig. 1 is the utility model sectional view.
Fig. 2 is the structural representation of the utility model photographic fixing part.
Fig. 3 is the figure of the utility model structural representation.
---fixing roller, 2---backer roll, 3---conveying mechanism, 4---heating element, 5---preheating device, 6---conveying belt, 7---driven unit, 8---heater among the figure: 1.
Embodiment
See that Fig. 1 is to shown in Figure 3; A kind of fixing device; Comprise fixing roller 1, backer roll 2 and be used to carry the conveying mechanism 3 of the paper that is loaded with the carbon dust image; This carbon dust image for successively through photosensitive drums, intermediate transfer belt and transfer device be transferred on the paper by Yellow carbon powder, cyan carbon dust, red carbon powder and the superimposed color toner image of black carbon powder, conveying mechanism 3 comprises conveying belt 6 and driven unit 7.Fixing roller 1 is the rotatably supported roller shape of schematic structure parts; Fixing roller 1 can use for example by the metal-cored roller shape parts that form with elastic layer; Metal-cored by forming such as metals such as iron, stainless steel, aluminium, elastic layer has such as silicon rubber, the formation of fluororubber elastomeric material.Pressure roll 2 is roller shape parts that illustrated pressure elements supported and pressed fixing roller rotatably, and this pressure roll 2 is actuated to rotate along with the rotation of fixing roller 1, and the pressure contact portion between fixing roller 1 and the pressure roll 2 divides the formation fusing nip portion.Fixing roller 1 is respectively arranged with heating element 4 with backer roll 2 inside, and heating element is a fluorescent tube, and this fluorescent tube can be Halogen lamp LED, infrared lamp etc.When conveying belt 6 with paper sheet delivery when the fixing roller 1, be loaded with on the paper carbon dust image by fixing roller 1 heating and photographic fixing on paper, pressure roll 2 is pressed onto paper with the carbon dust that melts and helps the carbon dust image fixing to paper.
Be respectively arranged with preheating device 5 on the circumferential edge of fixing roller 1 and backer roll 2, preheating device is the heating tube that is built-in with heater 8, and this heater 8 is a fluorescent tube.Preheating device 5 makes the fixing device preheating fast, can help fixing roller 1 and backer roll 2 to keep the target temperature on surface, has sufficiently high temperature when guaranteeing photographic fixing paper is carried out heat fixer, makes the photographic fixing effect raising of fixing device and is suitable for the high speed photographic fixing.
Above content is merely the preferred embodiment of the utility model; For those of ordinary skill in the art; According to the thought of the utility model, the part that on embodiment and range of application, all can change, this description should not be construed as the restriction to the utility model.
Claims (5)
1. fixing device; Comprise fixing roller (1), backer roll (2) and be used for the conveying mechanism (3) of conveyance of sheets; Fixing roller (1) and backer roll (2) are presented held; Form fusing nip portion between fixing roller (1) and the backer roll (2), fixing roller (1) and backer roll (2) inside are respectively arranged with heating element (4), it is characterized in that: be respectively arranged with preheating device (5) on the circumferential edge of said fixing roller (1) and backer roll (2).
2. fixing device according to claim 1 is characterized in that: said preheating device (5) is for being built-in with the heating tube of heater (8).
3. fixing device according to claim 2 is characterized in that: said heater (8) is a fluorescent tube.
4. fixing device according to claim 1 is characterized in that: said heating element (4) is a fluorescent tube.
5. fixing device according to claim 1 is characterized in that: said conveying mechanism (3) comprises conveying belt (6) and driven unit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205608602U CN202394043U (en) | 2011-12-29 | 2011-12-29 | Image fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205608602U CN202394043U (en) | 2011-12-29 | 2011-12-29 | Image fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394043U true CN202394043U (en) | 2012-08-22 |
Family
ID=46668955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205608602U Expired - Fee Related CN202394043U (en) | 2011-12-29 | 2011-12-29 | Image fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394043U (en) |
-
2011
- 2011-12-29 CN CN2011205608602U patent/CN202394043U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20131229 |