CN202013485U - Image formation device - Google Patents
Image formation device Download PDFInfo
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- CN202013485U CN202013485U CN2011200477972U CN201120047797U CN202013485U CN 202013485 U CN202013485 U CN 202013485U CN 2011200477972 U CN2011200477972 U CN 2011200477972U CN 201120047797 U CN201120047797 U CN 201120047797U CN 202013485 U CN202013485 U CN 202013485U
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- fixing device
- processing system
- image processing
- shading member
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Abstract
The utility model relates to an image formation device, which comprises a photographic fixing device (7), a hot-shielding member (26), an air inlet (22), a flow channel (24) and an air outlet (23). The photographic fixing device (7) heats a recording medium and fixes images onto the recording medium. The hot-shielding member (26) is arranged between the photographic fixing device (7) and a processing unit (3) arranged around the photographic fixing device (7), and the hot-shielding member (26) is arranged at least on the upper portion of an inlet (19) which is used for feeding the recording medium and arranged on the photographic fixing device (7). The air inlet (22) is used for sucking air from the outside. The flow channel (24) is used for leading the air sucked by the air inlet (22) to the inlet (19). The air outlet (23) is used for exhausting hot air led by the hot-shielding member (26) to the outside.
Description
Technical field
The utility model relates to having and is used for the figure of the fixing device of image fixing on recording medium is formed device.
Background technology
Be known in the fixing device that is used in the image processing system of duplicating machine, printer, facsimile recorder or their compounding machine etc. toner image, in this fixing device, the fixing member and the opposed members opposed with it (perhaps pressing element) that are heated the source heating contact with each other and dispose, recording mediums such as paper or OHP are passed through, utilize heat and pressure the toner image on this recording medium.
But, in having the image processing system of this fixing device, there is following danger: because the heat that from fixing device, produces, toner fusion in the toner accommodating portion and cohesion perhaps, are provided in the fixing device member on every side or the action or the characteristic generation fault of peripherals.In the past, the unfavorable condition that causes for the heat that prevents such fixing device, (for example adopt following structure, open the 2007-298629 communique with reference to No. 4131125 communique of Japan's special permission and spy): hot shading member is set, utilize hot shading member to cover the hot gas that produces from fixing device, and be discharged to outside the equipment.
But, in the structure that is provided with hot shading member in the past, have following problem.
For example, specially permit in the image processing system that No. 4131125 communique is put down in writing in Japan, owing to hot shading member is not set in the inlet portion side of sending into recording medium of fixing device, so, particularly owing to the hot gas of emitting from inlet portion, the peripherals temperature rises.
In addition, in the image processing system that TOHKEMY 2007-298629 communique is put down in writing, though also the inlet portion side at fixing device is provided with hot shading member, but, because air-flow is mobile relatively poor, so, can not effectively hot gas be discharged, exist hot gas to walk around the danger that hot shading member flow into the peripherals side.In addition, in order to prevent walking around of hot gas, consider that also the end that makes hot shading member extends near the inlet portion, but, in this case, be sent to the end that unfixing toner on the recording medium of inlet portion touches hot shading member easily, the danger that produces abnormal image is bigger.In addition, make the end of hot shading member extend the problem that this existence causes device to maximize.
Summary of the invention
The purpose of this utility model is to provide a kind of image processing system, can effectively the hot gas of emitting from the inlet portion of fixing device be discharged to the outside.
In order to achieve the above object, the image processing system of an embodiment of the present utility model has with recording medium heating and with the fixing device of image fixing to this recording medium, described image processing system has: hot shading member, between described fixing device and between the device or member that set around it, and, be provided in the top of the inlet portion of sending into recording medium of described fixing device at least; Air entry is used for from outside suction air; Runner will be directed to described inlet portion from described air entry inhaled air; Exhausr port, the hot gas that is used for utilizing described hot shading member to guide is discharged to the outside.
Utilize because the negative pressure that updraft produced the during heating of fixing device is drawn into air in the image processing system main body from air entry, the air that is inhaled into is directed into the inlet portion of fixing device by runner.Be used to the inflow effect from outside air-flow, the hot gas of emitting from inlet portion is guided by hot shading member, is discharged to the outside from exhausr port.Like this, can effectively the hot gas of emitting from the fixing device inlet portion be discharged to the outside, so, can prevent hot gas walk around and flow into from the end of hot shading member be positioned at fixing device around device or member one side, can suppress the temperature rising of these devices or member.
Description of drawings
Fig. 1 utilizes side cut away view that the synoptic diagram of one-piece construction figure that image processing system of the present utility model is first embodiment of laser printer is shown.
Fig. 2 is the synoptic diagram that the peripheral structure of fixing device and processing unit is shown.
Fig. 3 illustrates the figure that open-close lid is opened and taken out the state of processing unit.
Fig. 4 is the figure of the air-flow that produces in printer when the fixing device standby is shown.
Fig. 5 is the figure that the air-flow that continuous printing the time produces in printer is shown.
Fig. 6 is the synoptic diagram of structure that second embodiment of printer of the present utility model is shown.
Fig. 7 is the synoptic diagram of structure that the 3rd embodiment of printer of the present utility model is shown.
Fig. 8 is the sectional stereogram of conveying and fixing device.
Fig. 9 is the sectional stereogram that the variation of conveying is shown.
Figure 10 illustrates the figure of embodiment that structure applications of the present utility model is had the printer compounding machine of original document reading apparatus in the top at apparatus main body, (a) being to utilize side cut away view that the integrally-built synoptic diagram of this printer compounding machine is shown, (b) is the figure that the state of open-close lid being opened and processing unit being taken out is shown.
Embodiment
Below, at length preferred embodiment of the present utility model is described with reference to accompanying drawing.And, in each figure, to the identical or suitable identical Reference numeral of part mark, and, about the explanation of its repetition, suitably simplify or omission.
Fig. 1 illustrates the one-piece construction that image processing system of the present utility model is first embodiment of laser printer.
In this laser printer 1 (the following printer 1 that only is called), be provided with at an end of printer main body 100 (image processing system main body) the paper P as recording medium is transported to paper feed 2 in the printer 1, processing unit 3 as the image formation unit that forms the toner picture is arranged in central configuration.Disposing below the processing unit 3 as the conveying 5 that toner is looked like be transferred to the transfer roll 4 and the support paper P of the transfer device on the paper P and be directed to desirable throughput direction.In addition, above processing unit 3, be provided with processing unit 3 is sent laser to form the exposure device 6 of electrostatic latent image.In addition, at the other end of printer 1, have toner as the fixing device 7 of photographic fixing on paper P.Laser printer 1 is following structure: utilize paper feed 2 conveyance of sheets P on the path of representing with dotted line A, carry out image and form.
For processing unit 3, to be that center configuration has Charging system 11, developing apparatus 12, cleaning device 13, not shown neutralizer as the photoconductor drum 10 as supporting body, these one constitute.Can change processing unit 3 to printer main body 100 according to the life-span, the open-close lid 14 that the user will dispose above printer main body 100 is opened, and thus, processing unit 3 can be taken off from printer main body 100.
In the present embodiment, for fixing roller 15, constitute at the release layer of the arbor surface coverage PFA of tubulose (tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer) system.Backer roll 16 is made of resilient roller, and this resilient roller is made of arbor, the release layer that covers its surperficial silastic-layer and then cover its surperficial PFA (tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer) system.Fixing roller 15 and backer roll 16 are pushed with predetermined pressure by not shown augmentor, at the pressure contact portion of each roller 15,16, are formed with the fixing nip about the about 4mm of width.In addition, contact sets for example not shown thermistor of device for detecting temperature on the surface of fixing roller 15, is controlled at the heating of the well heater 17 of internal configurations based on this monitor temperature, makes that the surface temperature of fixing roller 15 is 155 ℃～165 ℃ a temperature.
In addition, fixing device 7 is not limited to said structure.For example, can be following structure also: making at least one side of fixing member and opposed members be endless belt, utilizes roller or liner etc. that this band is crimped onto the other side's side.In addition, fixing member and opposed members are not limited to the situation of crimping each other, also can be not carry out pressurizeing and contacting structure only.
Then, with reference to Fig. 1 image being formed action describes.
Exist not shown driving to pass on mechanism on photoconductor drum 10 coaxial, the not shown drive unit that utilizes printer main body 100 to be had makes photoconductor drum 10 obtain power, the counter clockwise direction rotation in figure.Charging system 11 is along with the charged roller of photoconductor drum 10 rotations, has by the not shown voltage that high-voltage power supply applied, and makes described photoconductor drum 10 surfaces equally charged.The laser L that utilization is sent by the exposure device 6 that disposes above processing unit 3 carries out exposing operation, the carrying electrostatic latent image to making the equally charged photoconductor drum 10 in surface.From 12 pairs of formed electrostatic latent image supply toners on photoconductor drum 10 of developing apparatus, form the toner picture.Position at transfer roll 4 will look like to be transferred on the paper P that is supplied with by paper feed 2 at formed toner on the photoconductor drum 3.In detail, utilize never illustrated high-voltage power supply that transfer roll 4 is applied transfer bias and the effect of the transfer electric field that forms is transferred to the toner picture on the photoconductor drum 10 on the paper P with electrostatic means.
After toner looks like to be transferred on the paper P, utilize cleaning device 13 to remove and hold the toner that remains on the photoconductor drum 10.In addition, the residual charge of the photoconductor drum 10 of above-mentioned not shown neutralizer after to cleaning removes.Utilize and should remove electricity, the surface of photoconductor drum 10 is initialised, and preparing next time, image forms.
The toner that utilizes described transfer roll 4 to be transferred on the paper P looks like to be transported to the fixing device 7 that disposes in (sheet transport direction) downstream of transfer roll 4.Transfer printing has the paper P of toner picture to be guided to fixing nip portion by the inlet guide rail 21 of fixing device 7, utilizes 16 couples of paper P of fixing roller 15 and backer roll to carry out pressurized, heated, and thus, the toner picture is by photographic fixing.Then, paper P is discharged outside equipment.
Then, be that the peripheral structure of fixing device 7 and processing unit 3 describes based on Fig. 2 to characteristic of the present utility model.
As shown in Figure 2, be formed with the air entry 22 that is used for sucking air in the bottom surface 101 of printer main body from the outside.On the other hand, be formed with the exhausr port 23 that is used for the air in the equipment is discharged to the outside in the front 102 of printer main body (face on the right side among the figure).
Below, the configuration to above-mentioned fixing device 7, processing unit 3, air entry 22, exhausr port 23 and hot shading member 26 etc. at length describes.
In Fig. 2, dot-and-dash line E represents the imaginary plane by the vertical direction of air entry 22.Imaginary plane A herein is transport path A quadrature and parallel with the Width of paper (direction vertical with the paper of Fig. 2) face with the paper of carrying in the horizontal direction.Fixing device 7 and processing unit 3 are provided in side opposite each other with respect to this imaginary plane A.That is, processing unit 3 is compared the upstream side that imaginary plane A is provided in sheet transport direction, and fixing device 7 is compared the downstream that imaginary plane A is provided in sheet transport direction.In addition, exhausr port 23 is provided in and fixing device 7 the same side (comparing the downstream that imaginary plane A is positioned at sheet transport direction) mutually.
The upper end 26c of the hot shading member 26 that is set above air entry 22 and bottom 26b clamping imaginary plane A are configured in side opposite each other.Specifically, upper end 26c compares the downstream that imaginary plane A is provided in sheet transport direction, and bottom 26b is provided in the upstream side of sheet transport direction.In addition, the bend 26a of hot shading member 26 is arranged on the top of the inlet portion 19 of fixing device 7.
As mentioned above, processing unit 3 is compared the upstream side that imaginary plane A is provided in sheet transport direction with the bottom 26b that heat is covered framework 26, and still, the bottom 26b of processing unit 3 phase specific heat shading members 26 is provided in more upstream side.Therefore, the bottom 26b of hot shading member 26 is between fixing device 7 and processing unit 3.
Fig. 3 is the figure of the expression state open-close lid 14 being opened and processing unit 3 is taken out.
As shown in Figure 3, open-close lid 14 is can being that the mode that rotate at the center constitutes with fulcrum 29.Open-close lid 14 is rotated upward, and printer main body 100 is opened, and thus, becomes user and waits the state that can access process unit 3 carries out dismounting (dismounting or install).In addition, for processing unit 3, by dismounting the time, utilize not shown guide rail component to draw the circular-arc track shown in the arrow B among the figure and move.In this case, the dismounting path of processing unit 3 is the zone between two double dot dash line C1, the C2 among the figure, so, when processing unit 3 dismounting, when being equipped with the state of hot shading member 26 in keeping printer main body 100 (with reference to the dotted line among the figure), processing unit 3 is relevant with hot shading member 26.
Therefore, in the present embodiment, hot shading member 26 is constituted integratedly with open-close lid 14, when open-close lid 14 was opened, hot shading member 26 moved with open-close lid 14, is configured in the retreating position of keeping out of the way from the dismounting path of processing unit 3.Like this, make hot shading member 26 move to retreating position, thus, can guarantee the dismounting path of processing unit 3, can prevent processing unit 3 and the mutual interference mutually of hot shading member 26.In addition, thus, even if hot shading member 26 is provided between fixing device 7 and the processing unit 3.And then hot shading member 26 can move with open-close lid 14, so, utilize the required minimal operation of dismounting of processing unit 3, can make hot shading member 26 move to retreating position, operability improves.
And, if, hot shading member 26 is moved the mode of processing unit 3 relative printer main bodies 100 (direction vertical with the paper of Fig. 3) dismounting in the side can be constituted.But, under the situation that the mode of carrying out other operations among Fig. 3 with the frontal (being right) from printer main body 100 constitutes, only the dismounting of processing unit 3 operation is to carry out from different directions, so, along with the operating area of printer and the expansion of setting area, user's etc. convenience descends, so not preferred.
In addition, as additive method, thereby the dismounting route method that existence is kept out of the way exposure device 6 to guarantee processing unit 3 by the top from processing unit 3, but, particularly, the device that makes exposure device 6 grades help very much image to form the quality raising moves, and this is from the viewpoint of position reproduction, be associated with structure member append or complicated, the cost that accompanies with it of structure raise, so not preferred.
Therefore, the printer of operating from the front, shown in the structure of present embodiment like that so that the mode that hot shading member 26 is kept out of the way constitutes the convenience that can keep user etc. and can realize simply and the method for carrying out the dismounting of processing unit 3 at low cost.
Fig. 4 and Fig. 5 are the figure of the air-flow that produces in the printer 1 of expression present embodiment.
At first, the air-flow that when paper (non-logical) produces in printer 1 based on Fig. 4 during to the fixing device standby describes.
When fixing device 7 standbies, the temperature maintenance of fixing roller 15 is at 155～165 ℃, because this heat, the processing unit 3 that particularly sets around fixing device 7 in printer 1 or the temperature of exposure device 6 rise and become problem.
In Fig. 4, the arrow that is shown in broken lines is represented the thermal current from fixing roller 15, represents the air-flow that sucks from air entry 22 with the arrow shown in the solid line.The hot gas that produces from fixing roller 15 flows towards the top of fixing device 7, so, around fixing device 7, because the updraft of hot gas produces negative pressure.Thus, the air entry 22 that is provided with from the bottom at printer 1 sucks air outside.Be directed into the inlet portion 19 of fixing device 7 by the runner 24 between conveying 5 and the fixing device 7 from air entry 22 inhaled airs.And, be used to inflow effect from outside air-flow, the hot gas of emitting from inlet portion 19 between hot shading member 26 and fixing device 7 and adorn outward cover 103 and fixing device 7 between formed each runner 27,25 discharge to the outside from exhausr port 23.In detail, the hot gas of emitting from the inlet portion 19 of fixing device 7 rises and contacts with hot shading member 26, is directed to its upper end 26a side along hot shading member 26.At this moment, for hot gas, changed into horizontal direction by the direction that bend 26a guided of hot shading member 26 and towards exhausr port 23.
As mentioned above, when fixing device 7 standbies, can utilize because the negative pressure that updraft produced the during heating of fixing device 7 sucks air from air entry 22, so, even if vent fan or cooling fan are not set, also can make flowing of the interior air-flow of runner good, can will discharge from the hot gas that the inlet portion 19 of fixing device 7 is emitted from exhausr port 23.In addition, in the present embodiment, set fixing device 7 at bottom 26b opposition side, thus, prevent that hot gas from walking around from the bottom 26b of hot shading member 26 with hot shading member 26 with respect to imaginary plane A shown in Figure 2.Thus, can prevent that the hot gas of emitting from inlet portion 19 from flowing into processing unit 3 or exposure device 6 sides from the bottom 26b of hot shading member 26, the temperature that can effectively suppress processing unit 3 or exposure device 6 rises.
In addition, in the present embodiment,, direction is changed into the hot gas that the horizontal direction guiding is risen from the below, still, bend 26a is formed the curved surface shape, thus, hot gas is successfully guided to exhausr port 23 with being detained at the bend 26b of hot shading member 26.
In addition, even if hot shading member 26 is heated by hot gas, owing between hot shading member 26 and processing unit 3, have space 28 (air layer), so, the heat of hot shading member 26 is difficult to pass to processing unit 3, and the temperature that can more effectively suppress processing unit 3 grades rises.
Then, based on Fig. 5, the air-flow that produces in printer 1 during to continuous printing describes.
On plurality of sheets of paper is opened continuously during the continuous printing of carries out image printing, by frequently covering space between conveying 5 and the fixing device 7 to the paper P of fixing device 7 conveyings continuously.Consequently, fully to printer 1, suck extraneous gas, can not in printer 1, produce above-mentioned air-flow, so it is difficult will discharging from exhausr port 23 from the hot gas that fixing roller 15 produces from air entry 22.
Therefore, when printing continuously, control as follows, temperature in utilizing the detected printer 1 of not shown temperature-detecting device surpasses under the situation of predetermined temperature, the heating of fixing device 7 is stopped, become holding state, do not print before the temperature of fixing device 7 descends, the temperature that suppresses processing unit 3 or exposure device 6 thus rises.In addition, whether surpass predetermined temperature, also can utilize printing time or printing number etc. to predict about judging the temperature in the printer 1.
Fig. 6 illustrates the structure of second embodiment of printer of the present utility model.
As shown in Figure 6, in the present embodiment, make the bottom 26b and processing unit 3 (cleaning device 13) butt of hot shading member 26.By such formation, thus, can more effectively prevent from the hot gas of fixing device 7 from the bottom 26b of hot shading member 26 around to handling unit 3 or exposure device 6 sides.And then in the present embodiment, the bottom 26b of hot shading member 26 (with the abutting part of processing unit 3) is made of elastic body 30, so the bottom 26b of hot shading member 26 and the degree of being close to of processing unit 3 improve, and can highly prevent walking around of hot gas.In addition, the abutting part of processing unit 3 sides of the bottom 26b butt of hot shading member 26 also can be made of elastic body.
In addition, Fig. 7 is the figure of structure of the 3rd embodiment of expression printer of the present utility model.
As shown in Figure 7, in the present embodiment, the bottom 26b and the processing unit 3 (cleaning device 13) of hot shading member 26 constituted integratedly.Thus, between the bottom of hot shading member 26 26b and processing unit 3, there is not the gap, so, can more effectively prevent from the hot gas of fixing device 7 from the bottom 26b of hot shading member 26 around to handling unit 3 or exposure device 6 sides.And, in this case, hot shading member 26 be not installed on the open-close lid 14 and with processing unit 3 dismounting integratedly.
In addition, in Fig. 7, the handle part (omitting diagram) of controlling when processing unit 3 carried out dismounting can be set also in the space 28 between processing unit 3 and the hot shading member 26.For example, in the position shown in the Reference numeral D of Fig. 2, be provided for handle of controlling processing unit 3 etc.By handle (handle part) is set in such position, thus, when opening open-close lid 14 and control handle, hot shading member 26 between handle and fixing device 7, so, can prevent from that user from waiting to touch the fixing device 7 that becomes high temperature that security improves.
In addition, structure illustrated in the above-mentioned of the present utility model second and the 3rd embodiment constitutes in the same manner with first embodiment in addition, so omit explanation.
Fig. 8 be expression in the various embodiments described above conveying 5 and the sectional stereogram of fixing device 7.
In Fig. 8, the width S 1 in the space between conveying 5 and the fixing device 7 forms greatlyyer than the width S 2 of fixing device 7 and inlet portion 19, guarantees from the inspiratory capacity of suction inlet 22 a lot.
In addition, Fig. 9 is the figure of the variation of expression conveying 5.
In this case, on conveying 5, be provided with to the side-prominent a plurality of flanges 31 of fixing device 7.By a plurality of flanges 31 are set like this, thus, can improve the conveying stability of paper or paper entering to fixing device 7, and, can be from air entry 22 inhaled airs by between each flange 31, so, air-flow can in printer, be produced effectively.
That shown in Figure 10 is the embodiment that structure applications of the present utility model is had the printer compounding machine 99 of original document reading apparatus 40 in the top at apparatus main body.
Shown in Figure 10 (a), this printer compounding machine 99 ground same as the previously described embodiments have hot shading member 26, air entry 22, exhausr port 23, to from the runner 24,25,27 of air entry 22 to exhausr port 23 guiding air or hot gas.Thus, can make flowing of the interior air-flow of runner good, so, can prevent that hot gas from prolonging towards processing unit 3 lateral bines from the bottom of hot shading member 26, the temperature that can suppress processing unit 3 or exposure device 6 effectively rises.
In addition, shown in Figure 10 (b), in this printer compounding machine 99, can constitute hot shading member 26, thus, guarantee the dismounting path of processing unit 3 in the mode that opens and closes (can move) integratedly with original document reading apparatus 40.
More than, embodiment of the present utility model is illustrated, but, structure of the present utility model is not limited to above-mentioned monochromatic laser printer or monochrome printers compounding machine, also can be applied to have color printer or duplicating machine, facsimile recorder or their image processing systems such as compounding machine of a plurality of image formation units.In addition, in the above-described embodiments, situation about rising with the temperature that suppresses processing unit 3 and exposure device 6 is that example is illustrated, still, to be provided in fixing device 7 around other devices or the temperature of member situation about rising under, also can use structure of the present utility model.In addition, can in the scope that does not break away from the utility model aim, carry out various changes certainly.
As mentioned above, hot shading member is provided in the top of air entry, and, make the upper end of hot shading member and bottom clamping be configured in side opposite each other by the imaginary plane of the vertical direction of described air entry, fixing device is provided in and a side of the upper end that has disposed described hot shading member the same side mutually with respect to the imaginary plane of the vertical direction by air entry, thus, utilize the hot caused updraft of fixing device and rise by runner from the air entry inhaled air, the hot shading member that is provided in the top with the hot gas from fixing device guides to exhausr port.In addition, fixing device is arranged on and the identical side of upper end one side that has set hot shading member, the bottom is arranged on opposition side, so, can prevent that the hot gas of fixing device from walking around from the bottom of hot shading member to being positioned at the inflow of device on every side or member.
The imaginary plane of exhausr port with respect to the vertical direction by air entry is provided in and the identical side of upper end one side that has set hot shading member, part above the inlet portion of the described fixing device that is positioned at hot shading member, be provided with bend with the direction change of guiding hot gas, thus, can utilize this bend to make the hot gas bending, guiding is to exhausr port.
Device that should suppress the influence that the torrid zone of fixing device is come or member are provided in a side identical with a side of the bottom that has set described hot shading member with respect to the imaginary plane of the vertical direction by air entry, make hot shading member the bottom between and fixing device between, thus, prevent from the walking around of hot gas of the bottom of self-heating shading member, so, the bottom that makes hot shading member is between the device or member and fixing device of the influence that should suppress to come in the torrid zone, thus, can prevent that hot gas is to these devices or member inflow and the rising of inhibition temperature.
Set the conveying of recording medium in the mode that is separated with fixing device to the fixing device guiding, from described air entry inhaled air by between conveying and the fixing device, by constituting in the above described manner, thus, be not transferred that guide rail blocks and side directed from the air entry inhaled air to inlet portion.
On conveying, be provided with a plurality ofly, by between each flange,, can improve the conveying stability of recording medium and recording medium entering to fixing device by such formation from the air entry inhaled air to the side-prominent flange of fixing device.In addition, pass through between each flange from the air entry inhaled air, so, air-flow can in image processing system, be produced effectively.
Bend is formed the curved surface shape, thus, hot gas is detained just can successfully guides to exhausr port.
There is the space at hot shading member with between device that is set around the described fixing device or member, thus, even if hot shading member is heated by hot gas, device or member around the heat of hot shading member also is difficult to pass to can more effectively suppress their temperature and rise.
In addition, hot shading member herein " covering " is not to make heat 100% complete non-conducting but the meaning of conduction of inhibition heat to a certain degree.
Be provided with the handle part of controlling during at device that is set around the described fixing device or member to the dismounting of image processing system main body in the space, hot shading member is between handle part and fixing device, so, can prevent to contact with the fixing device that becomes high temperature, security improves.
Has the temperature-detecting device that the temperature in the image processing system main body is detected, continuously to the continuous printing of a plurality of recording medium carries out image printing the time, detected temperatures at temperature-detecting device surpasses under the situation of predetermined temperature, the heating of fixing device is stopped, become holding state, thus, when printing continuously, when runner is frequently covered by the recording medium of carrying to fixing device continuously, fully do not suck air from air entry, can not in image processing system, produce air-flow, so, hot gas is discharged the difficulty that becomes from exhausr port.Therefore, when continuous printing, surpass under the situation of predetermined temperature in the detected temperatures of temperature-detecting device, the heating of fixing device is stopped, become holding state, thus, can be suppressed at the device that sets of fixing device or the temperature of member on every side and rise.
The end that makes hot shading member and the device or the member butt that around fixing device, set, thus, can more effectively prevent hot gas from the end of hot shading member around to around device or member.
The end of hot shading member and the device that is set around fixing device or the abutting part of member are made of elastic body, and thus, the degree of being close to of the end of hot shading member and device on every side or member improves, and can highly prevent walking around of hot gas.
The end of hot shading member is constituted with device that sets around fixing device or member one, thus, between the end of hot shading member and device on every side or member, there is not the gap, so, can more effectively prevent hot gas from the end of hot shading member around peripherad device or member.
So that being moved to from the mode of the retreating position that is used for the dismounting path of device in the image processing system main body or member dismounting is kept out of the way, hot shading member constitutes, thus, can guarantee the device in the image processing system main body or the dismounting path of member, can prevent that these devices or member and hot shading member are concerned with.In addition, constitute in the mode that hot shading member can be moved to retreating position, thus, even if also can set hot shading member in the dismounting path of described device or member.
The open-close lid one that makes hot shading member and be used for during with device in the image processing system main body or member dismounting the image processing system main body is opened constitutes, when described open-close lid is opened, described hot shading member moves with open-close lid and is configured in described retreating position, by such formation, by minimal operation required with device in the image processing system main body or member dismounting the time, can make hot shading member move to retreating position, operability improves.
As mentioned above, according to the utility model, in the inlet portion side of fixing device, can be used in the runner that the hot gas of fixing device is discharged flow good, so, can prevent hot gas walk around hot shading member flow to fixing device around device or member.Thus, the temperature of the device around can effectively suppressing etc. rises, and reliability improves.In addition, according to the utility model, because the end of hot shading member is extended near the inlet portion, so, can avoid hot shading member to prevent to produce abnormal image with contacting of recording medium, and, the maximization that can prevent to make the end of hot shading member to extend the device that is caused.And then, for the utility model, the negative pressure that updraft the produced during heating of utilization by fixing device, thus, even if vent fan is not set, also the hot gas of emitting from the inlet portion of fixing device can be discharged to outside the equipment, so, can prevent owing to the maximization of the device that vent fan causes is set and cost rises and the generation of noise.
Claims (15)
1. image processing system is characterized in that possessing:
Fixing device, with recording medium heating and with image fixing to this recording medium;
Hot shading member, be arranged at described fixing device and device or member of setting around it between, and, be provided in the top of the inlet portion of sending into recording medium of described fixing device at least;
Air entry is used for from outside suction air;
Runner is used for and will be directed to described inlet portion from described air entry inhaled air;
Exhausr port, the hot gas that is used for utilizing described hot shading member to guide is discharged to the outside.
2. image processing system as claimed in claim 1 is characterized in that,
Described hot shading member is provided in the top of described air entry, and, make the upper end of this hot shading member and bottom clamping be configured in side opposite each other, described fixing device is provided in a side identical with a side of the upper end that has set described hot shading member with respect to the imaginary plane of the vertical direction by described air entry by the imaginary plane of the vertical direction of described air entry.
3. image processing system as claimed in claim 2 is characterized in that,
Described exhausr port is provided in a side identical with a side of the upper end that has set described hot shading member with respect to the imaginary plane of the vertical direction by described air entry, the part above the inlet portion of the described fixing device that is positioned at described hot shading member be provided with will guiding hot gas the bend that changes of direction.
4. image processing system as claimed in claim 2 is characterized in that,
Should suppress the device of the influence that the torrid zone of described fixing device comes or member and be provided in a side identical with a side of the bottom that has set described hot shading member with respect to the imaginary plane of the vertical direction by described air entry, make described hot shading member the bottom between and described fixing device between.
5. image processing system as claimed in claim 1 is characterized in that,
Set the conveying of recording medium in the mode of separating, pass through between described conveying and the described fixing device from described air entry inhaled air to described fixing device guiding with described fixing device.
6. image processing system as claimed in claim 5 is characterized in that,
On described conveying, be provided with to the side-prominent a plurality of flanges of described fixing device, pass through between each flange from described air entry inhaled air.
7. image processing system as claimed in claim 3 is characterized in that,
Described bend forms the curved surface shape.
8. image processing system as claimed in claim 1 is characterized in that,
Between device that is set around described hot shading member and the described fixing device or member, there is the space.
9. image processing system as claimed in claim 8 is characterized in that,
Be provided with the handle part of controlling during at device that is set around the described fixing device or member to the dismounting of image processing system main body in described space.
10. image processing system as claimed in claim 1 is characterized in that,
Have the temperature-detecting device that the temperature in the image processing system main body is detected,
To a plurality of recording mediums continuously during the continuous printing of carries out image printing, above under the situation of predetermined temperature, the heating of described fixing device is stopped in the detected temperatures of described temperature-detecting device, become holding state.
11. image processing system as claimed in claim 1 is characterized in that,
Make the end and the device or the member butt that around described fixing device, set of described hot shading member.
12. image processing system as claimed in claim 11 is characterized in that,
The end of described hot shading member and the device that is set around described fixing device or the abutting part of member are made of elastic body.
13. image processing system as claimed in claim 1 is characterized in that,
The end of described hot shading member is constituted with device that sets around described fixing device or member one.
14. image processing system as claimed in claim 1 is characterized in that,
Constitute described hot shading member can be moved to from the mode of the retreating position that is used for the dismounting path of device in the image processing system main body or member dismounting is kept out of the way.
15. image processing system as claimed in claim 14 is characterized in that,
The open-close lid one of described hot shading member being opened the image processing system main body when being used for device in dismounting image processing system main body or member constitutes, when described open-close lid is opened, described hot shading member moves with open-close lid, is configured in described retreating position.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200976/10 | 2010-09-08 | ||
| JP2010200976 | 2010-09-08 | ||
| JP233664/10 | 2010-10-18 | ||
| JP2010233664A JP5601633B2 (en) | 2010-09-08 | 2010-10-18 | Image forming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013485U true CN202013485U (en) | 2011-10-19 |
Family
ID=44784102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200477972U Expired - Fee Related CN202013485U (en) | 2010-09-08 | 2011-02-25 | Image formation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885314A (en) * | 2012-12-21 | 2014-06-25 | 株式会社理光 | Heat-insulation heat-discharge member and image formation device |
-
2011
- 2011-02-25 CN CN2011200477972U patent/CN202013485U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885314A (en) * | 2012-12-21 | 2014-06-25 | 株式会社理光 | Heat-insulation heat-discharge member and image formation device |
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