CN100549864C - Toner heating and fixing device - Google Patents
Toner heating and fixing device Download PDFInfo
- Publication number
- CN100549864C CN100549864C CNB2006100985812A CN200610098581A CN100549864C CN 100549864 C CN100549864 C CN 100549864C CN B2006100985812 A CNB2006100985812 A CN B2006100985812A CN 200610098581 A CN200610098581 A CN 200610098581A CN 100549864 C CN100549864 C CN 100549864C
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- China
- Prior art keywords
- heating
- film
- toner according
- fixing device
- pressing
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 104
- 239000000463 material Substances 0.000 claims description 54
- 238000003825 pressing Methods 0.000 claims description 38
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- QJGLDKKUHNLMCZ-UHFFFAOYSA-N 1,2-difluoropropane;ethene Chemical compound C=C.CC(F)CF QJGLDKKUHNLMCZ-UHFFFAOYSA-N 0.000 claims 1
- 238000005485 electric heating Methods 0.000 claims 1
- 125000005843 halogen group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LRNQQNPVCXCUAX-UHFFFAOYSA-N 1,4-difluoropentane Chemical compound CC(F)CCCF LRNQQNPVCXCUAX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
Images
Landscapes
- Fixing For Electrophotography (AREA)
Abstract
The invention discloses a toner heating and fixing device, which comprises: the recording medium heating device comprises a pressurizing element, at least one elastic element, a heating element and a tubular film, wherein the pressurizing element is used for constantly applying a pushing force to the pressurizing element, the heating element is used for heating the pressurizing element, the tubular film surrounds the pressurizing element and the heating element, and can slide relative to the pressurizing element, the pressurizing element constantly applies a pressure from the inner side of the film and conducts heat to the film, and the pressurizing roller can push the film to abut against the pressurizing roller, so that the film applies pressure and heats a recording medium passing between the pressurizing roller and the film.
Description
Technical field
The present invention relates to a kind of toner (toner) is heated and deciding in the record medium materials device, relate in particular to a kind of evenly heating of heating and pressurizing and deciding to install.
Background technology
Imaging device is duplicating machine, printer and multifunctional paper feeding machine etc. for example, and toner (toner) is attached on the record medium materials according to predetermined output pattern, and wherein toner passes through the photosensitive drums transfer printing on the record medium materials.This moment toner only faint absorption affinity, for example electrostatic force is fixed in the record medium materials, must be is again deciding device and pressurizes and heat and just can make toner by permanent fixation by heating.
United States Patent (USP) is announced US3, proposes a kind of heating 331, No. 592 deciding to install, and includes a heated roller and a pressing roller, in order to pressurizeing by the record medium materials between heated roller and the pressing roller and heating.Wherein heated roller is the hollow metal cylinder of heat conduction, and its inside is provided with a thermal source to heat, and makes the working temperature that the heated roller surface is heated to is enough to decide pigment.The axle center of pressing roller is a metal, and is outer then coat as the flexible material of the class of rubber or foam, utilizes the heat energy that heated roller produces and the effect of pressure, and toner will be anchored at the surface of writing down medium materials.
But in this kind design, thermal source heats heated roller with radiation heat, and the efficient that causes heat to shift is very low and expend the energy.Be heated to working temperature from room temperature simultaneously and must expend 30 seconds～preheating time of 40 seconds.In addition, be not the face contact between heated roller and the record medium materials, and have only the partial points contact, cause the record medium materials after being subjected to hot pressing, to produce situation about upsweeping, promote the probability of paperboard.
Because the design of heated roller has the problems referred to above, so the just favourable design generation that is used as thermal source with resistive element.Announce US5 as United States Patent (USP), 083, No. 168 (No. 168) utilizes resistive element as thermal source, can shorten preheating time and and lifting thermal conversion efficiency.Simultaneously resistive element directly pressurizes to the record medium materials by the pliability film and heats, also can be to the contact of record medium materials generation face, reduce the paper curling problem of being heated.
(Positive temperature coefficient PTC) is used as thermal source, and it is about 10 seconds from the required time that room temperature is heated to working temperature to utilize ceramic heating body for No. 168.But this ceramic heating body with pottery as substrate, and on substrate the material of coating high resistivity, its complex process and cause with high costs.The control of the temperature of this type of resistive element is also comparatively complicated in addition, often must set up the temperature that temperature sensor is controlled the desire heating, makes control mode complicated more.
United States Patent (USP) is announced US5, and 278, No. 618 case is also mentioned a kind of ceramic body, can generate heat by energising, temperature can not rise always after energising, has the effect that keeps constant temperature, temperature controlled mode is also easy to be many than No. 168, but the performance of the efficiency of heating surface is not good.
Element is being decided in existing heating, and it is not high to have heating and pressurizing efficient, or cost of manufacture is too high and the control mode complicated problems.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of heating of toner deciding to install,, in order to the record medium materials are pressurizeed uniformly and heat, to promote the output quality of record medium materials, its cost of manufacture is low simultaneously, and control mode is simple.
In order to realize above-mentioned purpose, the heating that the invention provides a kind of toner is being decided to install, and it includes a pressurizing member, at least one flexible member, a heating element, a film and a pressing roller.Pressurizing member has a heating surface and a surface of contact, and a flexible member in order to consistently to pressurizing member apply one outside surface of contact the thrust of side.One heating element is corresponding to heating surface, in order to pressurizing member is heated.Film is wound into tubulose, is surrounded on the outside of pressurizing member and heating element, and film can slide with respect to pressurizing member, and wherein surface of contact applies a pressure by the inboard of film consistently, and film is carried out heat conduction.Pressing roller, fixedly install corresponding to surface of contact, wherein surface of contact can promote film towards pressing roller against, so as to making film to exerting pressure by the record medium materials between pressing roller and the film and heat, and pressing roller is rotatable and drive this film and move together with these record medium materials.Make be needed on record on the medium materials the toner melting and infiltrate among the record medium materials, and toner is permanently secured on the record medium materials.
Effect of the present invention is, can directly heat pressurizing member in heat conduction (thermal conduction) mode by heating element, and reduce preheating time.Simultaneously pressurizing member can promote the time that toner is heated and pressurizes by film to the contact of record medium materials formation face, is deciding effect to promote heating, writes down the medium materials pressurized simultaneously and is heated also comparatively evenly, reduces the record medium materials and produces situation about upsweeping.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Figure 1 shows that the stereographic map of first embodiment of the invention;
Figure 2 shows that the side view of first embodiment of the invention;
Figure 3 shows that the side view of second embodiment of the invention;
Figure 4 shows that the side view of third embodiment of the invention;
Figure 5 shows that the side view of fourth embodiment of the invention; And
Figure 6 shows that the side view of fifth embodiment of the invention.
Wherein, Reference numeral:
D: direction of motion P: record medium materials
T: toner 200: heating component
210: pressurizing member 220: flexible member
230: heating element 240: film
211: heating surface 212: surface of contact
213: carrier rib 214: heat insulating element
215: arc chord angle 216: roof
217: buffer element 218: elastic top is supported element
300: pressing roller 310: transmission shaft
320: driving element 330: lining
340: power source
Embodiment
Adopt the electronic imaging apparatus of toner imaging, it forms the sensitization pattern that possesses static with irradiate light on a photosensitive drums (figure does not show), utilizes static that toner (toner particles) T is adsorbed in and forms pattern to be transferred on the sensitization pattern.With a record medium materials P, for example a paper forms rolling with photosensitive drums and contacts, and the toner T that forms pattern to be transferred is passed on the record medium materials P, can form preset pattern on record medium materials P.This moment, toner T temporarily was attached to record medium materials P, must again record medium materials P be sent into heating and decide in the device, and the toner T on the record medium materials P is carried out heating and pressurizing, and toner T is fixed on the record medium materials P.
As shown in Figures 1 and 2, be respectively disclosed a kind of stereographic map and the side view of deciding device that heat of first embodiment of the invention.This heating is being decided device and is being included a heating component 200 and a pressing roller 300, respectively with heating and pressurization, so that toner T is fixed on the record medium materials P.
Wherein pressurizing member 210 is a long slab sheet, has a heating surface 211 and a surface of contact 212, and its material can be the metal material that possesses high heat-conduction coefficient, and for example silver (Ag), copper (Cu) and aluminium (Al) etc. are shaped to squeeze the casting mode.Pressurizing member 210 also includes two carrier rib 213, is formed on the heating surface 211 along the long axis direction of pressurizing member 210.
One end of two flexible members 220 fixedly installs, the other end corresponds respectively to two ends of pressurizing member 210, make the other end of each flexible member 220 be resisted against the apical margin of two carrier rib 213 respectively, in order to consistently to pressurizing member 210 apply one outside surface of contact 212 thrust of side.
The film 240 of tubulose is made by the material of pliability and tool high thermal conductivity coefficient, teflon (Polytetrafluoroethylene for example, PTFE, teflon (the Perfluoroalkoxy that TEFLON), side chain is arranged, PFA), ethylene, propylene fluoride (Fluorinated EthylenePropylene, FEP), except having thermal conductive property, have non-adhesion and wear-resisting property simultaneously, make and after toner T melting, can not be stained with the surface that is bonded at film 240, and can bear the frictional dissipation that contacts with each other part with surface of contact 212.
As shown in Figure 2, when the record medium materials P that carries toner T along direction of motion D by between heating component 200 and the pressing roller 300 time, the heat that heating element 230 is sent can be passed to pressurizing member 210.Then conduct to film 240, conduct to record medium materials P by film 240 again by surface of contact 212.Simultaneously, power source 340 makes pressing roller 300 make anticlockwise spinning movement, make film 240 make clockwise spinning movement with pressing roller 300 interlocks, and between film 240 that record medium materials P passes through and pressing roller 300 time, then writing down the pressurized cylinder 300 of medium materials P drives, contact relation by record medium materials P and film 240 drives film 240 rotations simultaneously, because film 240 does not have relative motion with the part that record medium materials P contacts with each other, therefore can not produce transverse shearing force to the toner T on the record medium materials.When record medium materials P arrives between film 240 and the pressing roller 300, exert pressure by 210 pairs of films 240 of pressurizing member.Because the thickness of film 240 is much smaller than other size of component, therefore its thermal resistivity can be ignored, can be considered as surface of contact 212 direct contact history medium materials P, the heat that heating element 230 is produced arrives the surface of record medium materials P by film 240, therefore toner T can meet hot melting in record medium materials P, and pressurized is embedded among the record medium materials P, makes toner T decided on record medium materials P.
Because pressurizing member 210 pressurizes and heating by 240 pairs of records of film medium materials P indirectly with surface of contact 212, the outside surface of pressing roller 300 also can carry out elastic deformation simultaneously, make the interface between film 240 and the pressing roller 300 form a plane, also be that film 240 can apply pressure on the record medium materials P with the face contact form, the pressure that record medium materials P is born is more even, and Temperature Distribution also can be comparatively average, can not make pressurized and be heated to concentrate on the fraction zone, avoid writing down medium materials P and produce the situation of curling.And the kenel of exerting pressure of face contact also the time that can prolong toner T pressurized and be heated, is being decided effect and promote heating.
As shown in Figure 3, it in the icon side view of second embodiment of the invention, its structure is formed roughly identical with first embodiment, difference is that pressurizing member 210 also includes a roof 216, is connected in the apical margin of two carrier rib 213, and roof 216 and two carrier rib 213 are one-body molded and present the curved arc shape to squeeze the casting mode, with so that heating element 230 pressurized elements 210 surround, the heat radiation that produces with heating element 230 is absorbed by roof 216, reduces heat energy dissipation, promotes the efficient of heating element.
As shown in Figure 4, be the side view of third embodiment of the invention, its structure is formed roughly identical with second embodiment.In order to prevent heating element 230 and pressurizing member 210 because the different relation of thermal expansivity make and originally behind expanded by heating, push heating element 230 against two carrier rib 213 of heating element 230, cause heating element 230 damages.Therefore be provided with a buffer element 217 on the heating surface 211 of pressurizing member 210, an end of buffer element 217 is fixed on the heating surface 211, and the other end is resisted against heating element 230.The thermal expansivity of buffer element 217 is greater than the thermal expansivity of pressurizing member 210.So, at pressurizing member 210 and buffer element 217 being heated during dilatational strain, the dilatational strain amount of buffer element 217 can be greater than pressurizing member 210, and then drive the heating surface 211 of heating element 230 away from pressurizing member 210, so as to reducing even eliminate the strength of 213 pairs of heating elements of carrier rib, 230 extruding.
As shown in Figure 5, in the icon side view of fourth embodiment of the invention, for another kind reduces the improvement of pressurizing member 210 expanded by heating to the strength of heating element 230 extruding.The 4th embodiment is approximately identical to second embodiment, and its difference is that the angle of two carrier rib 213 is slightly larger than 90 degree.Therefore after heating element 230 expanded by heating, can be comparatively smooth-goingly rise along the wall of carrier rib 213.Strengthen the angle of carrier rib 213 simultaneously, also can shorten the distance between heating element 230 and the heating surface 211, reduce heat-transfer path and reduce thermal resistance.
As shown in Figure 6, in the icon side view of fifth embodiment of the invention, further improve the 4th embodiment.In the 5th embodiment, be provided with elastic top between the roof 216 of pressurizing member 210 and the heating element 230 and support element 218, elastic top is supported the two ends difference contact roof 216 and heating element 230 of element 218, consistently heating element 230 is pushed against toward heating surface 211, make heating element 230 be resisted against two carrier rib 213 securely, make heating element 230 maintain the state that contacts with each other with two carrier rib 213.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100985812A CN100549864C (en) | 2006-07-12 | 2006-07-12 | Toner heating and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100985812A CN100549864C (en) | 2006-07-12 | 2006-07-12 | Toner heating and fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105675A CN101105675A (en) | 2008-01-16 |
| CN100549864C true CN100549864C (en) | 2009-10-14 |
Family
ID=38999603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100985812A Expired - Fee Related CN100549864C (en) | 2006-07-12 | 2006-07-12 | Toner heating and fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100549864C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5495004B2 (en) * | 2008-07-30 | 2014-05-21 | 株式会社リコー | Fixing apparatus and image forming apparatus |
| KR101808552B1 (en) * | 2010-09-30 | 2017-12-14 | 에스프린팅솔루션 주식회사 | Fusing unit and image forming apparatus employing the same |
| CN104217865B (en) * | 2014-09-12 | 2017-06-20 | 宁波市江北九方和荣电气有限公司 | Capacitor core metal spraying process for protecting |
| JP2018060080A (en) * | 2016-10-06 | 2018-04-12 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08248791A (en) | 1995-03-13 | 1996-09-27 | Ricoh Co Ltd | Heating device |
| JP2001142327A (en) * | 1999-11-12 | 2001-05-25 | Canon Inc | Heating device, image heating device, and image forming device |
| JP2003057980A (en) * | 2001-08-13 | 2003-02-28 | Canon Inc | Heating device, heat fixing device, and image forming device |
| JP2004252301A (en) * | 2003-02-21 | 2004-09-09 | Canon Inc | Image forming device |
| JP2004281286A (en) * | 2003-03-18 | 2004-10-07 | Canon Inc | Heating equipment |
-
2006
- 2006-07-12 CN CNB2006100985812A patent/CN100549864C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08248791A (en) | 1995-03-13 | 1996-09-27 | Ricoh Co Ltd | Heating device |
| JP2001142327A (en) * | 1999-11-12 | 2001-05-25 | Canon Inc | Heating device, image heating device, and image forming device |
| JP2003057980A (en) * | 2001-08-13 | 2003-02-28 | Canon Inc | Heating device, heat fixing device, and image forming device |
| JP2004252301A (en) * | 2003-02-21 | 2004-09-09 | Canon Inc | Image forming device |
| JP2004281286A (en) * | 2003-03-18 | 2004-10-07 | Canon Inc | Heating equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101105675A (en) | 2008-01-16 |
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Granted publication date: 20091014 |