CN2872427Y - Imager and fixing unit - Google Patents
Imager and fixing unit Download PDFInfo
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- CN2872427Y CN2872427Y CN 200520113065 CN200520113065U CN2872427Y CN 2872427 Y CN2872427 Y CN 2872427Y CN 200520113065 CN200520113065 CN 200520113065 CN 200520113065 U CN200520113065 U CN 200520113065U CN 2872427 Y CN2872427 Y CN 2872427Y
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- housing
- tray component
- processing system
- image processing
- fixation unit
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Abstract
Image forming device and fixing unit. The image forming device includes: a housing with top wall and side walls, a disposing case of an image bearing element, a scan unit exposing the image bearing element to the scan light, and fixing unit. The fixing unit is disposed at a position closer to a rear side wall than to a front side wall of a casing. A top wall is formed with a depressed portion depressed toward inside the casing. The depressed portion serves as a sheet discharge tray for receiving a recording medium that has passed through the fixing unit. The sheet discharge tray includes a tray member detachably disposed at the top wall. The rear side wall is formed with an opening through which the fixing unit is removed. When the tray member is disposed at the top wall, the tray member is positioned above and adjacent to the fixing unit and overlaps the fixing unit when viewed through the opening, thereby preventing the fixing unit from being removed from the casing. The fixing unit is removable through the opening when the tray member is detached from the top wall.
Description
Technical field
The utility model relates to a kind of image processing system and fixation unit.
Background technology
Electrophotographic image as laser printer forms device, is equipped with Optical Transmit Units such as comprising laser diode to come emission of lasering beam and surface to have the photosensitive-member of uniform electric charge.When the surface of photosensitive-member during by laser beam lithography, electrostatic latent image is formed on the surface of photosensitive-member and electrostatic latent image is developed by toner and is visual image.After this, visual image is transferred on paper or other recording mediums to form visual toner image on recording medium.
Yet, be transferred on the recording medium image only by electrostatic force or dispersancy by photographic fixing on recording medium, make image easily to come off from recording medium.Therefore, by processing such as application of heat the processing procedure of visual image photographic fixing on recording medium needed.
Dispose the fixing device of heat fixer image in image processing system, the fixing device of this heat fixer image typically comprises warm-up mill and as the backer roll of fixing roller.In the time of between recording medium is through warm-up mill and backer roll, toner or other developing materials heat by clinkering and joint through warm-up mill, to permeate also photographic fixing on recording medium.Warm-up mill accommodates thermal source, as Halogen lamp LED.Because the inefficacy of Halogen lamp LED etc. is fatal for image processing system, this can cause losing the photographic fixing function, therefore requires fixation unit to be easy to change.As describing among the Japanese Unexamined Patent Publication No HEI-8-305205, different applications proposes fixation unit and is made into integration by fixing roller and backer roll etc., so that can change simply when fault takes place.
Because for the user of normal domestic use printer, their printer can be installed in the little space is very easily,, be very big therefore for the printer of compact conformation and the demand of other image processing systems as installing on the shelf.Yet, as mentioned above,, must in device, have the space that can remove fixation unit by it in order to replace fixation unit easily, described as Fig. 8 of Japanese Unexamined Patent Publication No HEI-7-210023.This just is difficult to reduce device size, especially reduces its height dimension.
The utility model content
As previously mentioned, a purpose of the present utility model is to provide a kind of image processing system and fixation unit, and this image processing system and fixation unit can guarantee that when structure is compact more fixation unit easily changes.
In order to achieve the above object with other purpose, according to one side, the utility model provides a kind of image processing system.Described image processing system comprises housing, handle box, scanning element and fixation unit.Housing has roof and sidewall, and described sidewall comprises front side wall respect to one another and rear wall, and described roof is positioned at the top of housing when housing is arranged in the direction that housing will be placed.Described handle box comprises the image bearing member that carries toner image thereon.Described scanning element makes image bearing member be exposed to scan light.Described fixation unit comprises fixing roller, this fixing roller extends vertically and photographic fixing is transferred to toner image on the recording medium from image bearing member, described front side wall and rear wall all along and axially substantially parallel direction extend, fixation unit is disposed in apart from rear wall than apart from the nearer position of front side wall.Described roof is formed the sunk part of oriented enclosure interior depression, described sunk part as sheet discharge tray to accommodate recording medium through fixation unit.Described sheet discharge tray comprises the tray component that is removably disposed on the roof.Described rear wall has been formed opening, is removed by this opening fixation unit.When tray component was set at roof, tray component was positioned at fixation unit top and contiguous fixation unit, and tray component and fixation unit are overlapping when watching by opening, remove fixation unit thereby stop from housing.When fixation unit when roof is pulled down tray component is removable by described opening.
According to another aspect, the utility model provides a kind of fixation unit.Described fixation unit comprises warm-up mill, backer roll, and unit cover, pair of supporting members, and promote member.Described warm-up mill heat fixer is transferred to the toner image on the recording medium.Described warm-up mill has two vertically ends.Described backer roll contacts with warm-up mill and is provided with and recording medium is pressed against on the warm-up mill.Described backer roll has two vertically ends.Described unit cover covers at least a portion of warm-up mill and supports two vertical ends of warm-up mill rotatably.Pair of supporting members supports vertical end of backer roll rotatably, and an end of each supporting member is supported so that at least a portion of backer roll is not covered by unit cover and exposes rotationally by unit cover.Described promotion member has an end and the other end, and an end of described promotion member is connected with unit cover, and the other end is connected with a side of supporting member, and a side of described supporting member is relative with an end of described promotion member about the backer roll rotating shaft.Described backer roll is pushed to warm-up mill under the thrust that promotes member.
According on the other hand, the utility model provides a kind of image processing system.Described image processing system comprises housing, handle box, scanning element and fixation unit.Described housing has roof and sidewall.Described sidewall comprises front side wall respect to one another and rear wall.Described roof is positioned at the top of housing when housing is arranged in the direction that housing will be placed.Described handle box comprises the image bearing member that carries toner image thereon.Described scanning element makes image bearing member be exposed to scan light.Described fixation unit comprises fixing roller, and this fixing roller extends vertically and photographic fixing is transferred to toner image on the recording medium from image bearing member.Described front side wall and rear wall are all along extending with axially substantially parallel direction.Described fixation unit is disposed in apart from rear wall than apart from the nearer position of front side wall.Described roof is formed the sunk part of oriented enclosure interior depression.Described sunk part as sheet discharge tray to accommodate the recording medium through fixation unit.Described sheet discharge tray is set at the top of fixation unit.Described sheet discharge tray comprises tray component, and described tray component and fixation unit are integrally formed to form assembled unit.Described rear wall has been formed opening, is removed by this opening fixation unit.Described assembled unit can be removed from housing by described opening.
According on the other hand of the present utility model, the utility model provides a kind of image processing system.Described image processing system comprises housing, handle box, scanning element and fixation unit.Described housing has roof and sidewall.Described sidewall comprises front side wall respect to one another and rear wall.Described roof is positioned at the top of housing when housing is arranged in the direction that housing will be placed.Described handle box comprises the image bearing member that carries toner image thereon; Described scanning element makes image bearing member be exposed to scan light.Described fixation unit comprises fixing roller, and this fixing roller extends vertically and photographic fixing is transferred to toner image on the recording medium from image bearing member.Described front side wall and rear wall are all along extending with axially substantially parallel direction.Described fixation unit is disposed in apart from rear wall than apart from the nearer position of front side wall.Described roof is formed the sunk part of oriented enclosure interior depression.Described sunk part as sheet discharge tray to accommodate the recording medium through fixation unit.Described rear wall has been formed opening, is removed by this opening fixation unit.Described fixation unit is removed passage along fixation unit and is removed.Fixation unit from the installation site to the opening is removed passage and is set in the housing.Described sheet discharge tray is included between the primary importance and the second place movably tray component.Described primary importance is meant that at least a portion of tray component is arranged in the position that fixation unit is removed passage, thereby has stoped fixation unit to be removed from housing.The described second place is meant that tray component is positioned at fixation unit and removes position outside the passage, removes from housing thereby allow fixation unit to remove passage along fixation unit.
According to image processing system provided by the present invention and fixation unit, structure is more compact, and can more simply promptly change fixation unit when fixation unit breaks down.
Description of drawings
More than and other purposes, it is more clear that technical characterictic and advantage of the present utility model will be read the description of ensuing embodiment in conjunction with the drawings.
Fig. 1 is for showing the stereographic map according to the laser printer of the utility model first embodiment;
Fig. 2 is the vertical sectional view according to the laser printer of first embodiment;
Fig. 3 is for describing the stereographic map that is configured in the fixation unit structure in the laser printer;
Fig. 4 is the side view of fixation unit shown in Figure 3;
Fig. 5 is the vertical view of top cover of a part of the formation housing of laser printer;
Fig. 6 is the stereographic map that is arranged in the structure of the tray component in the top cover;
Fig. 7 is the amplification view of the VII-VII line in Fig. 5, has shown the boundary member of tray component and top cover when tray component is installed in the top cover;
Fig. 8 is for being formed with the stereographic map of opening during in open mode on the housing rear wall when bonnet;
Fig. 9 is the stereographic map of the part of top cover after cut, has shown the tray component that is installed in the housing;
Figure 10 is for describing the stereographic map of the process of removing fixation unit;
Figure 11 is the vertical sectional view according to the laser printer of the utility model second embodiment;
Figure 12 has described according to the fixation unit of the utility model second embodiment and the stereographic map of tray component structure;
Figure 13 for when fixation unit and tray component are removed according to the vertical sectional view of the laser printer of second embodiment;
Figure 14 is the vertical sectional view according to the laser printer of the 3rd embodiment of the present utility model;
Figure 15 is for describing the stereographic map according to the tray component structure of the 3rd embodiment;
Figure 16 for when fixation unit is removed according to the vertical sectional view of the laser printer of the 3rd embodiment;
Figure 17 A is the vertical sectional view according to the laser printer of the utility model the 4th embodiment;
Figure 17 B is the vertical sectional view according to the laser printer of the utility model the 4th embodiment, has especially shown the position of the rotating shaft support section that is formed on the housing;
Figure 18 is for describing the stereographic map according to the structure of the tray component of the laser printer of the 4th embodiment and rotating shaft support section;
Figure 19 for when fixation unit is removed according to the vertical sectional view of the laser printer of the 4th embodiment;
Figure 20 for describe according to improved tray component be configured in housing on the stereographic map of the structure that engages outshot.
Embodiment
A kind of image processing system and fixing device according to the utility model embodiment will be introduced with reference to the accompanying drawings, in the accompanying drawings, letter " F " expression front side (upstream), letter " B " expression rear side (downstream), letter " R " expression right side, letter " L " expression left side, and same parts and assembly are indicated by identical reference marker avoiding and are repeated in this description.
＜the first embodiment 〉
A kind of image processing system and fixing device according to the utility model first embodiment will be by being described with reference to figs 1 to 10.
(1) entire infrastructure of laser printer
Fig. 1 is for showing the stereographic map of laser printer outside.As shown in Figure 1, laser printer 1 comprises housing 2 and four sidewall 2a, 2b, 2c and 2d, described housing 2 have the top cover 18 that forms housing top wall, described four sidewall 2a, 2b, 2c and 2d comprise front side wall 2a and rear wall 2c ( sidewall 2c and 2d are invisible in Fig. 1).The part of top cover 18 be towards housing 2 inner recess (recessed) to form sheet discharge tray 52.Sheet supplying cassette 6 is disposed in the bottom of housing 2 and can is inserted into or removes from housing 2 by front side wall 2a.Sheet supplying cassette 6 can hold a plurality of paper or other recording mediums.Front side wall 2a is also included within the protecgulum 16 that rotatably opens or closes on the housing front portion, and for each manually supply with a recording medium, be arranged in the manual supply tray 11 on the protecgulum 16.
Next, the structure of laser printer 1 will be with reference to figure 2 by detailed description.Fig. 2 is a vertical sectional view of seeing laser printer 1 from sidewall 2d side.In Fig. 2, purpose for convenience of description, the fixation unit 70 that is arranged in the laser printer 1 is simplified.Laser printer 1 comprises the housing 2 with top cover 18, and protecgulum 16 is arranged on the front side wall 2a, and bonnet 60 is arranged on the rear wall 2c.In housing 2, also accommodate sheet feeding unit 3, handle box 4, fixation unit 70 simultaneously, unload paper unit 80, described sheet feeding unit 3 is supplied with paper or other recording mediums (transfer passage of conveying recording medium is represented by double dot dash line P), described handle box 4 is used for forming toner image at the paper of carrying from sheet feeding unit 3, above-mentioned fixation unit 70 is used for the toner image photographic fixing at paper, and the described paper unit 80 that unloads is used for discharging paper at paper through fixation unit 70 backs.In the present embodiment, be rear wall 2c near the sidewall of the fixation unit 70 in left side among Fig. 2, and be front side wall 2a with respect to rear wall 2c.Front side wall 2a and rear wall 2c are all along being parallel to the fixing roller 71 that next will introduce and 72 the continual extension of axial direction.
From sheet supplying cassette 6 or manually a piece of paper of supply tray 11 supplies be transported to and be arranged in the alignment roller 12 of donor rollers more than 7.Alignment roller 12 is at first aimed at paper, and conveyance of sheets is to the image forming portion of handle box 4 downsides (at the photosensitive drums of next introducing 37 and the contact position between the transfer roll 39) then.As previously mentioned, the protecgulum 16 front side wall 2a that is disposed in housing 2 goes up and can be in housing 2 cofree opening and closing.When protecgulum 16 during in open mode, front openings 16a is emerging in the housing 2, can be inserted into or remove by front openings 16a handle box 4.
By the rotation of feed rolls 42, the toner of discharging through color powder feeding opening 46 is supplied to developer roll 40.At this moment, toner between feed rolls 42 and developer roll 40 by the forward triboelectric charging.Because the rotation of developer roll 40 is fed to developer roll 40 lip-deep toners from process between thickness adjusted sheet 41 and the developer roll 40, thereby has kept uniform toner thin layer on the surface of developer roll 40.
Because being the uniform normal polarity in the whole surface of photosensitive drums 37, photosensitive drums 37 rotations, charger 38 charge.Next, the surface of photosensitive drums 37 is formed electrostatic latent image by the laser beam lithography of launching on the surface of photosensitive drums 37 from scanning element 26.Next, because the rotation of developer roll 40, the toner of the positive charge of carrying on developer roll 40 surfaces begins to contact with photosensitive drums 37.At this moment, because the development bias voltage is used on the developer roll 40, when toner is adsorbed on the part that is exposed on the photosensitive drums 37 selectively, be formed on photosensitive drums 37 lip-deep electrostatic latent images and be developed and be toner image, so parts of these absorption toners have than by the low electromotive force of the remaining surface of even positive charge.By such method, opposite development process is implemented.
Next, because paper is from process between photosensitive drums 37 and the transfer roll 39, the lip-deep toner image that is carried at photosensitive drums 37 is transferred on the paper owing to transfer bias is applied on the transfer roll 39.
Warm-up mill 71 is configured to metal cylinder and holds thermal source as the Halogen lamp LED form with the heating of metal right cylinder.Constantly same what pressurize, backer roll 72 is followed warm-up mill 71 rotations.The structure of fixation unit 70 is with more detailed description below.
After handle box 4 places were transferred on the paper, when paper passed through between warm-up mill 71 and backer roll 72, toner image heated by photographic fixing on paper through warm-up mill 71 in fixation unit 70 in visual toner image.Next, on the paper passing away 50 that warm-up mill 71 and backer roll 72 conveyance of sheets form in the paper discharge unit 80.
Therefore, behind process fixation unit 70, paper is transported along paper passing away 50.The paper passing away 50 that is made of inner orientation member 51 and external orientation member 62 changes the direction that paper is transferred, with paper guiding to distributing roller to 53,55 direction.Distributing roller 53,55 is discharged paper on sheet discharge tray 52 towards the front side wall 2a side of housing 2.
(2) detailed structure of fixation unit
Next, will be according to the structure of the fixation unit 70 of first embodiment by detailed introduction.Fig. 3 is a stereographic map of describing fixation unit 70.Fixation unit 70 according to first embodiment comprises warm-up mill 71, is arranged in warm-up mill 71 times and the backer roll 72 on the surface of contact extruding warm-up mill 70.Warm-up mill 71 holds internal heat resource, as Halogen lamp LED 71A.
Unit cover 73 cover warm-up mills 71 top (for an end of the unit cover among the purpose Fig. 3 that introduces 73 cut).Unit cover 73 forms (molded) by resin material, as polyethylene terephthalate (PET).Unit cover 73 does not cover the integral body of backer roll 72, so the part of backer roll 72 (bottom of backer roll 72) exposes because of not covered by unit cover 73.By such structure, fixation unit 70 can be more compact, to form compact more image processing system.Backer roll 72 has the rotating shaft 72A that extends by its center.Each of rotating shaft 72A vertically end is supported rotatably by pair of support rods (supporting member) 75.Each support bar 75 extends and has hook-shaped profile support section 74 at the upstream extremity of the sheet movement direction of each support bar 75 in the sheet conveying direction, is provided with handle 75A in the downstream end of the sheet movement direction of each support bar 75.Support section 74 engages with back shaft 73A on being configured in unit cover 73.Support bar 75 is supported on unit cover 73 so that can move rotatably around back shaft 73A with being rotated.Spring 76 has an end that is connected (joint) with unit cover 73, and the other end of spring 76 is being connected (rear end, or the downstream of sheet transport direction) about rotating shaft 72A with support bar 75 with support section 74 opposite sides.
The expulsive force of spring 76 (restoring force) is pushed backer roll 72 to warm-up mill 71, therefore, need not dispose the promotion method below 72 at backer roll.Therefore, unit cover 73 does not need to cover backer roll 72.
When paperboard etc. takes place in fixation unit 70, the user of laser printer 1 can open bonnet 60 (Fig. 1) and depression of handle 75A so that deal with problems simply.
Because backer roll 72 is necessary with the hardness change that reduces backer roll to keep suitable roll-gap width, especially when backer roll is produced in a large number usually by with making as the silicon rubber elastomeric material.Yet configuration retainer 73B has in the present embodiment guaranteed that suitable roll-gap width is held, even when the hardness of backer roll 72 reduces a little.As a result, in addition when the hardness of backer roll when desired value changes, backer roll also can be used in the laser printer 1, thus increased backer roll manufacture process throughput rate and make contributions for the manufacturing cost that reduces image processing system.
(3) the detailed introduction of paper discharge unit
As mentioned above, behind process fixation unit 70, paper is transported to paper discharge unit 80.Next, paper discharge unit 80 will be by detailed being introduced.As shown in Figure 2, in the laser printer 1 of present embodiment, fixation unit 70 is disposed in sheet discharge tray below 52 and contiguous sheet discharge tray 52.Under such state, when bonnet 60 fixation unit 70 when opening can not be replaced, because sheet discharge tray 52 forms sunk part and hindered fixation unit 70 (more particularly, tray component 54 has hindered fixation unit 70) on top cover 18.In other words, when seeing by opening 2e, tray component 54 is overlapping with fixation unit 70.
Therefore, in the present embodiment, the part of the sheet discharge tray 52 on rear side is configured to separable (movably) tray component 54.By separating tray component, can obtain to insert or remove enough spaces of fixation unit 70.Fig. 5 is the vertical view of top cover 18, has shown the tray component 54 of formation near the tray component 54 of the part of the sheet discharge tray 52 of outlet opening (sheet discharge tray 52 rear section more farther than solid line SL among Fig. 5).A plurality of muscle 18B and 54B are disposed on the whole sheet discharge tray 52 and are substantially parallel with the sheet conveying direction.In Fig. 5, reference marker 18B represents the muscle on the fixation wall part 18F that is arranged in top cover 18, and reference marker 54B representative is arranged in the muscle on the tray component 54.These muscle are convenient to the steady discharge of paper by reducing to be applied to frictional resistance on the paper.
Fig. 6 is the structural perspective of having described according to the tray component 54 of first embodiment.In first embodiment, the tray component 54 of a part that is configured to sheet discharge tray 52 is integrally formed with the inner orientation member 51 that forms the part paper transport path.Projection 54A is disposed in the front end (in the downstream of sheet conveying direction) of tray component 54.Fig. 7 is the amplification view along the profile line VII-VII among Fig. 5.As Fig. 2 and shown in Figure 7, tray component construction opening 18g is formed in the loam cake 18 with tray member 54.Notice that Fig. 2 and Fig. 7 show that tray component 54 is fitted into the state of tray component construction opening 18g, so that (promptly at the top 54U of the tray component 54 of the upstream extremity of sheet transport direction, top at the muscle 54B of downstream end) is disposed in the top 18U (that is, the muscle 18B of upstream extremity top) of the fixation wall part 18F that is higher than upstream extremity.
Have such structure, step 54S is formed on the boundary member (contact portion) between tray component 54 and the fixation wall part 18F.Such structure has stoped the paper forward position of discharging by outlet opening to be touched part to catch, made things convenient for the steady discharge of paper.Step 54S can see easily that in Fig. 7 the full-size(d) of step 54S does not need so big, as long as paper can be discharged reposefully.
When tray component 54 being installed among the tray component construction opening 18g, the end face 54T of projection 54A is to gliding and contacting with the bottom surface 18T of the end parts 18A of fixation wall part 18F.Such structure can prevent that the steam that produces from leaking on the sheet discharge tray 52 between the fixation wall part 18F of tray component 54 and top cover 18 when the photographic fixing image is to paper.
Because fixation unit 70 can produce 100 or above temperature, be disposed in the element of fixation unit 70 vicinities, especially tray component 54, preferably formed by the heat stable resin material.An example of heat proof material is PC-ABS (polycarbonate and an ABS alloy), but heat proof material is not limited only to this material.For example, polybutylene diol ester etc. also is used.By only particular component being used the heat stable resin material, can reduce the use amount of heat stable resin material, also just effectively reduced manufacturing cost.
In the present embodiment, although on sheet discharge tray 52, be provided with muscle 54B and 18B, by the surface elevation of the fixation wall part 18F of the contact site office between tray component 54 and the fixation wall part 18F being established to such an extent that be lower than the surface of tray component 54, there is not muscle can produce similar effect yet.
Fig. 8 is from the stereographic map of the laser printer 1 of rear wall 2c side when bonnet 60 is in open mode.As shown in Figure 8, when bonnet 60 is in open mode, inner orientation member 51 is by by the outer exposed of opening 2e from housing 2.Therefore, tray component 54 can be removed as a unit by the opening 2e that is formed on the rear wall 2c with inner orientation member 51.When tray component 54 and inner orientation member 51 are removed, fixation unit 70 just can be removed by opening 2e from the outer exposed and the fixation unit 70 of housing 2 by opening 2e.It is overheated with what stop fixation unit 70 to become that thermal transpiration opening 60a is formed on five positions by bonnet 60.
Next, removing tray component 54 will be introduced in detail with the process of fixation unit 70.
As shown in Figure 8, the user at first opens bonnet 60 to replace fixation unit 70.In the present embodiment, when bonnet 60 was opened, external orientation member 62 rotated backward with bonnet 60.Particularly specifically, as shown in Figure 8, ways 63 tabular wayss 63 are set at the right-hand member of bonnet 60.In ways 63, be formed with elongate cavity 64.Tabular component 65 is disposed on the right-hand member of external orientation member 62 and is formed with projection 66 thereon.Projection 66 is slided along elongate cavity 64 in inserting elongate cavity 64 time.Open with elongate cavity 64 when mobile backward when bonnet 60, projection 66 is slided in elongate cavity 64, allows external orientation member 62 little by little to rotate backward and forms the opening of removing fixation unit 70.As shown in Figure 8, when forming opening, the user can arrive and depression of handle 75A, therefore is convenient to solve paperboard in the fixation unit 70 etc.
Fig. 9 is the stereographic map of the laser printer that partly excised of top cover 18, and bonnet 60 is in open mode.As shown in Figure 9, be fixed on the inside of housing 2 by screw 56a and 56b (as shown in Figure 6) with inner orientation member 51 integrally formed tray components 54.By removing screw 56a and 56b, tray component 54 can be removed by the opening 2e that opens bonnet 60 formation.
Figure 10 is the stereographic map of laser printer 1 when tray component 54 is removed.As shown in figure 10, can therefore, form the space that whole fixation unit 70 can pass through by removing inner orientation passage 51 along the direction of arrow G indication and tray component 54 is exposed with unit cover 73 integrally formed muscle 73C.The user can be by removing fixation unit 70 along arrow H indicated direction slip fixation unit 70 on step part 67, thereby replace fixation unit 70 easily.Because the end face 54T of the projection 54A of tray component 54 is disposed under the bottom surface of fixation wall part 18F, as (Fig. 7) that is introduced before, projection 54A can not hindered by top cover 18 when the opening 2e of tray component 54 grades by rear wall 2C is removed.
At image processing system described above, movably tray component 54 is configured to a part that is formed on the sunk part in the sheet discharge tray 52.Therefore, by removing the space that tray component 54 can obtain to be used to insert or remove fixation unit 70, also be close to sheet discharge tray 52 under the sheet discharge tray 52 thereby allow fixation unit 70 to be disposed in.As a result, image processing system is compactness (specifically, height can be lowered) more, and can replace fixation unit 70 easily.
＜the second embodiment 〉
Will be according to a kind of image processing system of the utility model second embodiment and fixing device by 11 being described with reference to the accompanying drawings to 13.
Figure 11 is the vertical sectional view according to the laser printer of second embodiment.As shown in figure 11, laser printer 101 comprises housing 102 and four sidewalls, and described housing 102 has the top cover 118 that forms housing top wall, and described four sidewalls comprise front side wall 102a and rear wall 102c.The part of top cover 118 be towards housing 102 inner recess (recessed) to form sheet discharge tray 152.In the present embodiment, be rear wall 102c near the sidewall of the fixation unit 170 in left side among Figure 11, and be front side wall 102a with respect to rear wall 102c.Front side wall 102a and rear wall 102c all extend along the axial direction that is basically parallel to the fixing roller 171 that next will introduce and 172.
Sheet discharge tray 152 is the quadrilateral profile basically in vertical view.The rear end of sheet discharge tray 152 is formed towards the sunk part of housing 102 inner recess and towards the antetheca 102a side of housing 102 being inclined upwardly gradually.In the present embodiment, acclivitous gradually that part of mid point of 152 from the rear end to the sheet discharge tray of sheet discharge tray 152 is made of tray component 154.Tray component 154 front end 154A (at the downstream of sheet conveying direction side) contact with rear end (upstream side) 118A of the fixation wall part 118F of top cover 118 or are contiguous.Tray component 154 and the unit cover next introduced 173 are integrally formed and as the framework that covers fixation unit 170.
In Figure 11, for convenience of description, fixation unit 170 and tray component 154 are simplified.In housing 102, also accommodate simultaneously the sheet feeding unit 103 that is used to supply with paper or other recording mediums (transfer passage of conveying recording medium is represented by double dot dash line P); Be used for transporting the handle box 104 that forms toner image on the next paper at sheet feeding unit 103; Be used for the above-mentioned fixation unit 170 of toner image photographic fixing on paper; Be used for discharging through fixation unit 170 backs the paper discharge unit 180 of paper at paper.
Be transported to the alignment roller 112 that is arranged in donor rollers 107 tops from a piece of paper of sheet supplying cassette 106 or manually supply tray 111 supplies.Alignment roller 112 is at first aimed at paper, then paper sheet delivery is formed position (at the photosensitive drums of next introducing 137 and the contact position between the transfer roll 139) to the image of handle box 104 downsides.
In handle box 104, in the time of between paper is through photosensitive drums 137 and transfer drum 139, owing to applied transfer bias on transfer roll, the toner image of carrying on photosensitive drums 137 surfaces is transferred on the paper.
Figure 12 is the stereographic map of the structure of description fixation unit 170 and tray component 154.Fixation unit 170 according to second embodiment comprises warm-up mill 171, and is disposed in warm-up mill below 171 and the backer roll 172 that contacts with warm-up mill 171 extruding.
As shown in figure 11, be installed among the opening 118g that is formed in the top cover 118, thereby form the sunk part of sheet discharge tray 152 with the tray component 154 of fixation unit 170 integral arrangement.A plurality of muscle 118B and 154B are along being parallel to the top that sheet transport direction is disposed in whole sheet discharge tray 152.In Figure 11, reference marker 118B represents the muscle on the fixation wall part 118F that is arranged in top cover 118, and reference marker 154B representative is arranged in the muscle on the tray component 154.These muscle have reduced and are applied to the friction force on the paper and are convenient to discharge reposefully paper.
Have such structure, the boundary member (contact portion) of step 154S between tray component 154 and fixation wall part 118F forms.Such structure has stoped the front of the paper of discharging by outlet opening to be caught by boundary member, is convenient to discharge reposefully paper.Step 154S can see that in Fig. 7 the full-size(d) of step 154S does not need so big, as long as can steadily discharge paper.
As shown in figure 12, tray component 154 is fixed on housing 2 by screw 156a and 156b.By such method, the fixation unit 170 that is wholely set with tray component 154 is fixed on the housing 102 reliably.Therefore, when laser printer 101 work, the position deviation of fixation unit 170 grades can not take place.
Because fixation unit 170 can produce 100 or above temperature, be disposed in the element of fixation unit 170 vicinities, especially tray component 154 and unit cover 173 are preferably formed by the heat stable resin material.An example of heat proof material is PC-ABS (polycarbonate and an ABS alloy), but heat proof material is not limited only to this material.For example, polybutylene diol ester etc. also is used.After passing through fixation unit 170, paper is carried towards paper discharge unit 180.
Behind process paper discharge unit 180, paper is discharged on the sheet discharge tray 152, has therefore finished printing.As shown in figure 13, when bonnet 160 was in open mode, tray component 154 can be removed by the opening 102e that is formed on the rear wall 102c with fixation unit 170.The process of removing tray component 154 and fixation unit 170 will be described in detail below.
As shown in figure 13, the user at first opens bonnet 160 to remove fixation unit 170.In the present embodiment, when bonnet 160 was opened, external orientation parts 162 rotated backward with bonnet 160.Such operation can form enough spaces and be used for integrally removing tray component 154 and fixation unit 170 (assembled unit) by opening 102e.As mentioned above, tray component 154 is fixed in the housing 102 (Figure 12) by screw 156a and 156b.Therefore, by removing screw 156a and 156b, tray component 154 can be removed by the opening 102e that forms when bonnet 160 is opened with fixation unit 170.
After screw 156a and 156b were removed from tray component 154, the counter clockwise direction in Figure 11 is the assembled unit of Rotary tray member 154 and fixation unit 170 a little, so that unclamp assembled unit from the installation site.Next, assembled unit by by opening 102e pulling and when needed clockwise or counterclockwise the rotation combination unit all from housing 102, removed out up to assembled unit.
Next, by using and top opposite step, the assembled unit of tray member 154 and fixation unit 170 at an easy rate.
In the laser printer 101 of above-described second embodiment, tray component 154 can be mounted and can be removed from housing 102 as a unit with fixation unit 170 as a unit, so element can not scattered, thereby be convenient to the replacement operation of fixation unit.And fixation unit 170 can be disposed in the below and the contiguous sheet discharge tray 152 of sheet discharge tray 152, thereby makes image processing system compactness (particularly, can reduce height) more.
＜the three embodiment 〉
Will be according to a kind of image processing system of the utility model the 3rd embodiment and fixing device by 14 being described with reference to the accompanying drawings to 16.
Figure 14 is the vertical sectional view according to the laser printer of the 3rd embodiment.As shown in figure 14, laser printer 201 comprises housing 202 and four sidewalls, and described housing 202 comprises having the top cover 218 that forms housing top wall, and described four sidewalls comprise front side wall 202a and rear wall 202c.The part of top cover 218 be towards housing 202 inner recess (recessed) to form sheet discharge tray 252.In the present embodiment, be rear wall 202c near the sidewall of the fixation unit 270 in left side among Figure 14, and be front side wall 202a with respect to rear wall 202c.Front side wall 202a and rear wall 202c all extend along the axial direction that is parallel to the fixing roller 271 that next will introduce and 272.
In Figure 14, for convenience of description, fixation unit 270 is simplified with tray component 254.In housing 202, also accommodate simultaneously the sheet feeding unit 203 that is used to supply with paper or other recording mediums (transfer passage of conveying recording medium is represented by double dot dash line P); Be used for transporting the handle box 204 that forms toner image on the next paper at sheet feeding unit 203; Be used for the above-mentioned fixation unit 270 of toner image photographic fixing on paper; Be used for discharging through fixation unit 270 backs the paper discharge unit 280 of paper at paper.
As Figure 15 and shown in Figure 16, trench portions 291 is formed on each left side wall and right side wall of housing 202.Trench portions 291 on right side wall as shown in figure 15, the trench portions 291 on left side wall is as shown in figure 16.Because the trench portions 291 on left side and right side has the shape of symmetry, next will be introduced one of trench portions 291.
As Figure 15 and shown in Figure 16, trench portions 291 defines the engaged groove 291a that is used to support the tray component 254 that next will introduce.Trench portions 291 is formed from the acclivitous forward engaged groove 291a of rear wall.Being arranged in copulational protuberance part 254C on the tray component 254 that next will introduce is inserted into and slides along engaged groove 291a.Therefore, stayed surface 291A is disposed in the diapire of the trench portions 291 that is used for support engages jut 254C.Jut 291D is formed on the stayed surface 254C.The cross section of jut 291D is basic semicircle.Groove ends 291B is formed on the rear end of engaged groove 291a.Jut 291D is as the step part between stayed surface 291A and the groove ends 291B.Sunk part 291C is formed on the front end of engaged groove 291a and to lower recess.Vertical surface 291E is disposed between stayed surface 291A and the sunk part 291C.Vertical surface 291E is as another step part.Therefore, two step parts are set at the spaced-apart position of glide direction along copulational protuberance part 254C.
Be transported to the alignment roller 212 that is arranged in donor rollers 207 tops from a piece of paper of sheet supplying cassette 206 or manually supply tray 211 supplies.Alignment roller 212 is at first aimed at paper, then paper sheet delivery to the image forming portion of handle box 204 downsides (at the photosensitive drums of next introducing 237 and the contact position between the transfer roll 239).
In handle box 204, in the time of between paper is through photosensitive drums 237 and transfer drum 239, owing to applied transfer bias to transfer roll, the toner image of carrying on photosensitive drums 237 surfaces is transferred on the paper.
As shown in figure 14, tray component 254 is fixed on the tray component construction opening 218g that forms top cover 218, thereby the sunk part of sheet discharge tray 252 is provided.Under this state, the part of tray component 254 (lowermost portion of tray component 254) is positioned at passage S1, when fixation unit 270 is inserted housings 202 or when housing 202 is removed fixation unit 270 by this passage S1, therefore, stoped fixation unit 270 to be removed (this position is confirmed as primary importance).Particularly specifically, the lowermost part 254LM of tray component 254 is positioned at the position of the topmost portion 270UM that is lower than fixation unit 270.And the lowermost part 254LM of tray component 254 is positioned at apart from rear wall 202c than the position near apart from the topmost portion 270UM of fixation unit 270.
A plurality of muscle 218B and 254B are disposed in the top of whole sheet discharge tray 252 along being basically parallel to sheet transport direction.In Figure 14, reference marker 218B represents the muscle on the fixation wall part 218F that is arranged in top cover 218, and reference marker 254B representative is arranged in the muscle on the tray component 254.These muscle reductions are applied to the friction force on the paper and paper are discharged reposefully.
Have such structure, the contact portion between tray component 254 and fixation wall part 218F forms step 254S.Such structure has stoped the leading edge of the paper of discharging from outlet opening to be touched part to catch, and institute is so that discharge paper reposefully.Although step 254S can see that in Figure 14 the full-size(d) of step 254S does not need so big, as long as can discharge paper reposefully.
As shown in figure 15, copulational protuberance part 254C is disposed in two vertically ends and in the bottom of tray component 254, copulational protuberance part 254C is outstanding to two sidewalls of housing.Each copulational protuberance part 254C is configured among the engaged groove 291a, and tray component 254 engages (or, supported slidably by housing 202) by copulational protuberance part 254C with housing 202.When tray component 254 was installed among the tray component construction opening 218g, copulational protuberance part 254C was positioned at the rearmost position of engaged groove 291a.The copulational protuberance part 254C that jut 291D (step part) has retrained the rear end that is arranged in engaged groove 291a makes it can be at engaged groove 291a to front slide.Therefore, jut 291D has stoped tray component 254 to slide unexpectedly.
Because fixation unit 270 can produce 100 or above temperature, be disposed in the element of fixation unit 270 vicinities, especially tray component 254 and unit cover 273 are preferably formed by the heat stable resin material.An example of heat proof material is PC-ABS (polycarbonate and an ABS alloy), but heat proof material is not limited only to this material.For example, polybutylene diol ester etc. also is used.After passing through fixation unit 270, paper is transferred to paper discharge unit 280.
As mentioned above, paper discharge unit 280 comprises inner orientation member 251 and the external orientation member 262 that forms paper passing away 250; Form right following distributing roller 253 and the last distributing roller 255 of distributing roller, described distributing roller is discharged on the sheet discharge tray 252 that is arranged on the top cover 218 by this outlet opening paper being disposed in the outlet opening; Constitute the tray component 254 of the part of sheet discharge tray 252.External orientation member 262 moves with the opening and closing that are arranged in the bonnet 260 on the housing 202 rear wall 202c.Bonnet 260 is attached on the housing 202 by hinge 261, and can open and close rotationally around hinge 261.When bonnet 260 is rotated open position, the corresponding rotation that produces backward in the top of external orientation member 262.By such method, open bonnet 260 after, paper passing away 250 can be exposed by the opening 202e that is formed on the rear wall 202c.
Behind process paper discharge unit 280, paper is discharged on the sheet discharge tray 252, has therefore finished printing.As shown in figure 16, when bonnet 260 was in open mode, fixation unit 270 can be removed by the opening 202e that is formed on the rear wall 202c.The process of removing fixation unit 270 will be described in detail below.
As shown in figure 16, in order to remove fixation unit 270, the user at first opens bonnet 260.When opening bonnet 260, external orientation member 262 rotates backward with bonnet 260.Such operation has formed the opening 202e that removes fixation unit 270.
Yet, when tray component 254 was disposed in primary importance, the lowermost part of tray component 254 was arranged in passage S1, and fixation unit 270 is by this passage S1 when fixation unit 270 is inserted into or removes from housing 202, thereby, stop fixation unit 270 to be removed.Therefore, tray component 254 is moved to passage S1 external position slidably.This position is confirmed as the second place.
For from primary importance to second place mobile pallet member 254, tray component 254 quilts platform gently rise so that copulational protuberance part 254C separates with jut 291D, and tray component 254 slides so that copulational protuberance part 254C slides along stayed surface 291A along engaged groove 291a.By sliding joint jut 254C on stayed surface 291A, final copulational protuberance part 254C falls among the sunk part 291C, and this moment, tray component was finished the second place that moves to passage S1 outside.
Next, pulling fixation unit 270 is fully removed from housing 202 up to fixation unit 270 by passage S1.
After tray component 254 was moved to the second place, copulational protuberance part 254C was engaged into sunk part 291C.Therefore, copulational protuberance part 254C can not move on the stayed surface 291A, unless copulational protuberance part 254C separates with vertical surface 291E (step part).Therefore, such structure has stoped tray component 254 to turn back to primary importance and has stopped removing of fixation unit 270.
Next, by carrying out the step opposite with above-mentioned steps, fixation unit 270 can easily turn back to initial position (installation site) with tray component 254.
According to the 3rd embodiment described above, in laser printer 201, when tray component 254 engages (or, supported by housing 202) with housing 202, can remove fixation unit 270.Therefore, need not remove tray component 254, thereby prevent from when pulling down tray component 254, to take place the loss of tray component 254 in order to remove fixation unit 270.And fixation unit 270 can be disposed in sheet discharge tray below 252 and contiguous sheet discharge tray 252, makes that device can compact more (especially can reduce height).
＜the four embodiment 〉
To be described by 17A to 19 with reference to the accompanying drawings according to a kind of image processing system of the utility model the 4th embodiment and fixing device.
Figure 17 A is the vertical cross section according to the laser printer of the 4th embodiment.Shown in Figure 17 A, laser printer 301 comprises housing 302 and four sidewalls, and described housing 302 has the top cover 318 that forms housing top wall, and described four sidewalls comprise front side wall 302a and rear wall 302c.The part of top cover 318 be towards housing 302 inner recess (recessed) to form sheet discharge tray 352.In the present embodiment, be rear wall 302c near the sidewall of the fixation unit 370 in left side among Figure 17 A, and be front side wall 302a with respect to rear wall 302c.Front side wall 302a and rear wall 302c all extend along the axial direction that is basically parallel to the fixing roller 371 that next will introduce and 372.
In Figure 17 A, for convenience of description, fixation unit 370 is simplified with tray component 354.In housing 302, also accommodate simultaneously the sheet feeding unit 303 that is used to supply with paper or other recording mediums (transfer passage of conveying recording medium is represented by double dot dash line P); Be used for transporting the handle box 304 that forms toner image on the next paper at sheet feeding unit 303; Be used for the above-mentioned fixation unit 370 of toner image photographic fixing on paper; Be used for discharging through fixation unit 370 backs the paper discharge unit 380 of paper at paper.
As Figure 17 B and shown in Figure 180, rotating shaft support section 302R is disposed on the left side wall and right side wall of housing 302, is used for rotatably (rotationally) and supports tray component 354.Figure 17 B has shown the position of rotating shaft support section 302R on sidewall.As shown in figure 18, the support section of rotating shaft is formed the cylinder concave portions to hold the rotating shaft 354C that next will introduce.Notice that tray component 354 is omitted only by its profile of dotted lines, so that show rotating shaft Support Position 302R with inner orientation member 351 in Figure 17 B.As Figure 17 B and shown in Figure 180, only shown the rotating shaft support section 302R on left side wall.
Be transported to the alignment roller 312 that is arranged in donor rollers 307 tops from a piece of paper of sheet supplying cassette 306 or manually supply tray 311 supplies.Alignment roller 312 is at first aimed at paper, then paper sheet delivery is formed position (at the photosensitive drums of next introducing 337 and the contact position between the transfer roll 339) to the image of handle box 304 downsides.
In handle box 304, in the time of between paper is through photosensitive drums 337 and transfer drum 339, owing to applied transfer bias on transfer roll, the toner image of carrying on photosensitive drums 337 surfaces is transferred on the paper.
Shown in Figure 17 A, tray component 354 is fixed on the tray component construction opening 318g that is formed in the top cover 318, thereby forms the sunk part of sheet discharge tray 352.Under this state, the part of tray component 354 (lowermost part of tray component 354) is positioned at passage S2, when insert or when housing 302 is removed fixation unit 370 fixation unit 370 by this passage S2, therefore, stoped fixation unit 370 to be removed (this position is confirmed as primary importance).Particularly specifically, the lowermost part 354LM of tray component 354 is positioned at the position of the topmost portion 370UM that is lower than fixation unit 370.And the lowermost part 354LM of tray component 354 is positioned at its position nearer apart from rear wall 302c than the topmost portion 370UM of fixation unit 370 apart from rear wall 302c.
A plurality of muscle 318B and 354B are disposed in the top of whole sheet discharge tray 352 along the direction that is basically parallel to sheet transport direction.In Figure 17 A, reference marker 318B represents the muscle on the fixation wall part 318F that is arranged in top cover 318, and reference marker 354B representative is arranged in the muscle on the tray component 354.These muscle have reduced and are applied to the friction force on the paper and paper is discharged more reposefully.
Have such structure, the contact portion between tray component 354 and fixation wall part 318F forms step 354S.Such structure has stoped the leading edge of the paper of discharging by exhaust opening to be touched part to catch, made things convenient for the steady discharge of paper.Step 354S can see that in Figure 17 A the full-size(d) of step 354S does not need so big, as long as can steadily discharge paper.
As shown in figure 18, rotating shaft 354C is disposed in the two ends, the left and right sides of tray component 354 and basic coaxial with the rotating shaft of distributing roller 353.Rotating shaft 354C is fixed on rotating shaft support section 302R with being rotated.Therefore, tray component 354 is by housing 302 (rotationally) support rotatably.
Because fixation unit 370 can produce 100 or above temperature, be disposed in the element of fixation unit 370 vicinities, especially tray component 354 and unit cover 373 are preferably formed by the heat stable resin material.An example of heat proof material is PC-ABS (polycarbonate and an ABS alloy), but heat proof material is not limited only to this material.For example, polybutylene diol ester etc. also is used.After passing through fixation unit 370, paper is transferred to paper discharge unit 380.
As mentioned above, paper discharge unit 380 comprises inner orientation member 351 and the external orientation parts 362 that form paper passing away 350; Form right following distributing roller 353 and the last distributing roller 355 of distributing roller, described distributing roller is discharged on the sheet discharge tray 352 that is arranged on the top cover 318 by this outlet opening paper being disposed in the outlet opening; Constitute the tray component 354 of the part of sheet discharge tray 352.External orientation parts 362 move with the opening and closing that are arranged in the bonnet 360 on the housing 302 rear wall 302c.With hinge 361 bonnet 360 is attached on the housing 302, and can opens and closes rotationally around hinge 361.When bonnet 360 was rotated open position, the top of external orientation parts 362 is rotation backward accordingly.By such method, by opening bonnet 360, paper passing away 350 can be exposed by the opening 302e that is formed on the rear wall 302c.
Behind process paper discharge unit 380, paper is discharged on the sheet discharge tray 352, has therefore finished printing.As shown in figure 19, when bonnet 360 was in open mode, fixation unit 370 can be removed by the opening 302e that is formed on the rear wall 302c.The process of removing fixation unit 370 will be described in detail below.
Shown in Figure 17 A, in order to remove fixation unit 370, the user at first opens bonnet 360.In the present embodiment, when bonnet 360 was opened, external orientation parts 362 rotated backward with bonnet 360.Such operation has formed the opening 302e that removes fixation unit 370.
Yet, when tray component 354 is disposed in primary importance (as Figure 17 A), the lowermost part of tray component 354 is arranged in passage S2, and fixation unit 370 is by passage S2 when fixation unit 370 is inserted into or removes from housing 302, thereby, stop fixation unit 370 to be removed.Therefore, tray component 354 moves to the external position of passage S2 with being rotated.This position is confirmed as the second place.
For from primary importance to second place mobile pallet member 354, tray component 354 around rotating shaft 354C along rotation counterclockwise among Figure 17 A to arrive the second place (Figure 19).
Next, the pulling fixation unit 370 by passage S2 up to fully from housing 302, removing.
Next, by carrying out the step opposite with above-mentioned steps, fixation unit 370 and tray component 354 turn back to initial position (installation site) at an easy rate.
In laser printer 301, when tray component 354 engages (or, supported by housing 302) with housing 302, can remove fixation unit 370 according to the 4th embodiment described above.Therefore, need not remove tray component 354, thereby stoped the loss that tray component 354 may take place when pulling down tray component 354 in order to remove fixation unit 370.Owing to can tray component 354 be moved to the second place by rotary-tray member 354 simply, remove the step of fixation unit 370 and can easily be carried out.And fixation unit 370 can be disposed in the below and the contiguous sheet discharge tray 352 of sheet discharge tray 352, makes device compact more (especially can reduce height).
＜modification 〉
The utility model has here been undertaken at length introducing by engaging accompanying drawing, and for those skilled person in the art, the difference variation and the modification that do not break away from the utility model spirit are tangible.
For example, in first embodiment of above introduction, the tray component 54 of the part of composition sheet discharge tray 52 is integrally formed with inner orientation member 51.Yet tray component 54 can be constructed with inner orientation member 51 separatedly.
And bonnet 60 is set to separate with external orientation member 62, and external orientation member 62 rotates backward with bonnet 60 when bonnet 60 is opened.Yet external orientation member 62 can be integrally formed with bonnet 60.
In second embodiment of above introduction, tray component 154 is used as a unit with fixation unit 170 (assembled unit) and removes (Figure 11).But, because the jut 154P of tray component 154 from fixation unit 170 to outer process (along the front upper place to), when assembled unit was removed, jut 154P can contact with other elements in the housing 102, made to remove relatively difficulty of assembled unit.Therefore, jut 154P can be configured to bending point B in Figure 11 to fixation unit 170 bendings.Have such structure, jut 154P other elements unlikely and in the housing 102 contact when removing assembled unit, thereby are convenient to remove assembled unit.
In third and fourth embodiment of above introduction, engaged groove part and rotating shaft support section are disposed on the housing, but these parts also can be disposed on the tray component.In this case, copulational protuberance part and rotating shaft are disposed on the housing.
For example, modification as shown in figure 20, dish member 490 is disposed in the left end and the right-hand member of tray component 454, forms 491 (Figure 20 only shows right-hand end) of engaged groove part on dish member 490.Each engaged groove part 491 has stayed surface 491a, and this stayed surface 491a is the upper surface of engaged groove part 491 inside.And copulational protuberance part 402P (Figure 20 only shows of left side) is disposed on the left side wall and right side wall of housing 402.Copulational protuberance part 402P is fixed in the engaged groove part 491 and therein and can slides.But in this modification, in fact copulational protuberance part 402P can not move, but moves with respect to engaged groove part 491.Stayed surface 491a is supported by copulational protuberance part 402P.Each engaged groove part 491 comprises the rear end that is formed at engaged groove part 491 and the step part 491B and the 491C of front end.Have such structure, when tray component 454 was positioned at primary importance (Figure 20), each copulational protuberance part 402P was positioned at step part 491C.When tray component 454 slided to second portion from primary importance, each copulational protuberance part 402P slided to step part 491B from step part 491C on stayed surface 491a.
In the 3rd embodiment of above introduction, tray component slides to the second place from primary importance, and tray component rotates to the second place from primary importance in the 4th embodiment.But for example, image processing system also can constitute like this: tray component begins to slide from primary importance and rotates to the second place then.
In third and fourth embodiment of above introduction, tray component with shift to the second place from primary importance when housing continues to engage.But image processing system also can constitute like this: tray component is shifted to the second place from primary importance when separating (not engaging) with shell.Under these circumstances, so that tray component is placed or be fixed on the second place, so tray component can not break away from from housing yet and just not can cause damage by configuration tray component placement part on housing.And when having only seldom around the installation region or not having free space, the tray component placement part can improve the operation of removing of removing fixation unit.
Claims (48)
1. an image processing system is characterized in that, this image processing system comprises:
Housing with roof and sidewall, described sidewall comprises front side wall respect to one another and rear wall, described roof is positioned at the top of housing when housing is arranged in the direction that housing will be placed;
Handle box, this handle box comprises the image bearing member that carries toner image thereon;
Make image bearing member be exposed to the scanning element of scan light;
The fixation unit that comprises fixing roller, this fixing roller extends vertically and photographic fixing is transferred to toner image on the recording medium from image bearing member, described front side wall and rear wall are all along extending with axially substantially parallel direction, fixation unit is disposed in apart from rear wall than apart from the nearer position of front side wall
Wherein, described roof is formed with the sunk part to the enclosure interior depression, and to accommodate the recording medium through fixation unit, sheet discharge tray comprises the tray component that is removably disposed in roof to described sunk part as sheet discharge tray;
Wherein, described rear wall has been formed opening, is removed by this opening fixation unit;
Wherein, when tray component was set at roof, tray component was positioned at fixation unit top and contiguous fixation unit, and tray component and fixation unit are overlapping when watching by opening, remove fixation unit thereby stop from housing; And
Wherein, when fixation unit when roof is pulled down tray component removable by described opening.
2. image processing system as claimed in claim 1 is characterized in that, described tray component is removably disposed in roof by opening and in housing.
3. image processing system as claimed in claim 1 is characterized in that described housing comprises the lid that is arranged on rear wall rotationally, is used to cover opening.
4. image processing system as claimed in claim 1, it is characterized in that, further comprise: the inner orientation member that forms the recording medium transfer passage, by this recording medium transfer passage, recording medium is carried along throughput direction, the inner orientation member is arranged on the downstream position of fixation unit along throughput direction, and the inner orientation member is exposed to outside the housing by described opening.
5. image processing system as claimed in claim 4 is characterized in that the inner orientation member is removably disposed in the housing by described opening.
6. image processing system as claimed in claim 4 is characterized in that roof has been formed the tray component installing port;
Wherein, described tray component is installed in the tray component installing port and forms the part of sunk part, and tray component and inner orientation member are integrally formed; And
Wherein, described when tray component and inner orientation member be used as a unit when from housing, removing by opening fixation unit be exposed on outside the housing by described opening.
7. image processing system as claimed in claim 1 is characterized in that roof is formed with the tray component installing port;
Wherein, described tray component is installed in the tray component installing port and forms the part of sunk part;
Wherein, described roof comprises the fixation wall part, and this fixation wall part is arranged on the housing regularly and is positioned at the downstream of tray component along recording medium transporting direction;
Wherein, described tray component has downstream end on throughput direction, described fixation wall part has contiguous described downstream end on throughput direction upstream extremity; And,
Wherein, the top of described downstream end is set to the top that is higher than described upstream extremity.
8. image processing system as claimed in claim 1 is characterized in that described roof is formed with the tray component installing port;
Wherein, described tray component is installed in the tray component installing port and forms the part of sunk part;
Wherein, described roof comprises the fixation wall part, and this fixation wall part is arranged on the housing regularly and is positioned at the downstream of tray component along recording medium transporting direction;
Wherein, described tray component has downstream end on throughput direction, described fixation wall part has contiguous described downstream end on throughput direction upstream extremity; And,
Wherein, the end face of described downstream end is positioned at bottom surface following of described upstream extremity and contacts with the bottom surface of described upstream extremity.
9. image processing system as claimed in claim 1 is characterized in that, described fixing roller comprises warm-up mill and the backer roll that is in contact with one another setting; And,
Wherein, fixation unit further comprises:
Cover the unit cover that warm-up mill also rotatably supports warm-up mill; With
Rotatably support the supporting member of backer roll, an end of supporting member is supported by unit cover so that the exposing and do not covered by unit cover than lower part of backer roll.
10. image processing system as claimed in claim 9 is characterized in that described fixation unit further comprises the promotion member, and an end that promotes member is connected with unit cover, promotes the member other end and is connected with supporting member; And
Wherein, described backer roll is pushed to warm-up mill under the thrust that promotes member.
11. image processing system as claimed in claim 10, it is characterized in that, described unit cover comprises retainer, and this retainer is pushed the supporting member of warm-up mill to and stopped at predeterminated position in abutting connection with ground being pushed member, thus the roll-gap width that between warm-up mill and backer roll, is maintained fixed.
12. image processing system as claimed in claim 10 is characterized in that, an end of described supporting member is supported by the unit cover pivotally; And
Wherein, the other end of described promotion member is connected with a side of supporting member, and a side of described supporting member is relative with an end of described supporting member with respect to the rotating shaft of backer roll.
13. image processing system as claimed in claim 12 is characterized in that, described supporting member has and the opposite other end of a described end; And
Wherein, the opening of the other end of described supporting member in rear wall is outstanding, so that the user can be to pressing down the other end.
14. image processing system as claimed in claim 1 is characterized in that, described tray component is made by heat stable resin.
15. image processing system as claimed in claim 1 is characterized in that, further comprises a plurality of muscle, these a plurality of muscle are set at the sheet discharge tray top along the direction that is parallel to the throughput direction that recording medium is transferred.
16. image processing system as claimed in claim 1 is characterized in that, further comprises being arranged on the tablet that the sheet supplying cassette below the fixation unit promptly piles up with housing recording,
Wherein, the recording medium from the sheet supplying cassette supply is transferred by the recording medium transfer passage that is arranged between sheet supplying cassette top and the handle box below.
17. image processing system as claimed in claim 16 is characterized in that, described sheet supplying cassette is removably disposed in the housing by front side wall.
18. image processing system as claimed in claim 1 is characterized in that, described front side wall is formed with front openings; And wherein, described handle box is removably disposed in the housing by front openings.
19. an image processing system is characterized in that, this image processing system comprises:
Housing with roof and sidewall, described sidewall comprises front side wall respect to one another and rear wall, described roof is positioned at the top of housing when housing is arranged in the direction that housing will be placed;
Handle box, this handle box comprises the image bearing member that carries toner image thereon;
Make image bearing member be exposed to the scanning element of scan light; With
The fixation unit that comprises fixing roller, this fixing roller extends vertically and photographic fixing is transferred to toner image on the recording medium from image bearing member, described front side wall and rear wall are all along extending with axially substantially parallel direction, described fixation unit is disposed in apart from rear wall than apart from the nearer position of front side wall
Wherein, described roof is formed with the sunk part to the enclosure interior depression, described sunk part as sheet discharge tray to accommodate the recording medium through fixation unit, described sheet discharge tray is arranged on the top of fixation unit, described sheet discharge tray comprises tray component, and described tray component and fixation unit are integrally formed to form assembled unit;
Wherein, described rear wall is formed with opening, is removed by this opening fixation unit; With
Wherein, described assembled unit can be removed from housing by described opening.
20. image processing system as claimed in claim 19 is characterized in that, described fixing roller comprises warm-up mill and the backer roll that is in contact with one another setting;
Wherein, described fixation unit further comprises the unit cover that covers warm-up mill and rotatably support warm-up mill; And
Wherein, unit cover and tray component are integrally formed by resin.
21. image processing system as claimed in claim 20 is characterized in that, described resin is a heat stable resin.
22. image processing system as claimed in claim 19 is characterized in that, described housing comprises and is arranged on rear wall rotationally to cover the lid of opening.
23. image processing system as claimed in claim 19, it is characterized in that, further comprise: the inner orientation member that forms the recording medium transfer passage, recording medium is carried along throughput direction by described recording medium transfer passage, the inner orientation member is arranged on the downstream position of fixation unit along throughput direction, and the inner orientation member is exposed to outside the housing by described opening.
24. image processing system as claimed in claim 23 is characterized in that, described inner orientation member is removably disposed in the housing by described opening.
25. image processing system as claimed in claim 23 is characterized in that, described roof is formed with the tray component installing port; And wherein, described tray component is installed in the tray component installing port and forms the part of sunk part, and described inner orientation member and assembled unit are integrally formed.
26. image processing system as claimed in claim 19 is characterized in that, described roof is formed with the tray component installing port;
Wherein, tray component is installed in the tray component installing port and forms the part of sunk part;
Wherein, described roof comprises the fixation wall part, and this fixation wall part is arranged on the housing regularly and is positioned at the downstream of tray component along the throughput direction that recording medium is transferred;
Wherein, described tray component has downstream end on throughput direction, described fixation wall part has contiguous described downstream end on throughput direction upstream extremity; And
Wherein, the top of described downstream end is higher than the top of described upstream extremity on the position.
27. image processing system as claimed in claim 19 is characterized in that, further comprises a plurality of muscle, these a plurality of muscle are set at the sheet discharge tray top along the direction that is parallel to the throughput direction that recording medium is transferred.
28. image processing system as claimed in claim 19 is characterized in that, further comprises being arranged on the tablet that the sheet supplying cassette below the fixation unit promptly piles up with housing recording,
Wherein, the recording medium from the sheet supplying cassette supply is transferred by the recording medium transfer passage that is arranged between sheet supplying cassette top and the handle box below.
29. image processing system as claimed in claim 28 is characterized in that, described sheet supplying cassette is removably disposed in the housing by front side wall.
30. image processing system as claimed in claim 19 is characterized in that, described front side wall is formed with front openings; And wherein, described handle box is removably disposed in the housing by described front openings.
31. an image processing system is characterized in that, this image processing system comprises:
Housing with roof and sidewall, described sidewall comprises front side wall respect to one another and rear wall, described roof is positioned at the top of housing when housing is arranged in the direction that housing will be placed;
Handle box, this handle box comprises the image bearing member that carries toner image thereon;
Make image bearing member be exposed to the scanning element of scan light;
The fixation unit that comprises fixing roller, this fixing roller extends vertically and photographic fixing is transferred to toner image on the recording medium from image bearing member, described front side wall and rear wall are all along extending with axially substantially parallel direction, fixation unit is disposed in apart from rear wall than apart from the nearer position of front side wall
Wherein, described roof is formed with the sunk part to enclosure interior depression, described sunk part as sheet discharge tray to accommodate recording medium through fixation unit;
Wherein, described rear wall is formed with opening, is removed by this opening fixation unit;
Wherein, fixation unit is removed passage along fixation unit and is removed from housing, and the fixation unit from the installation site to the opening is removed passage and is arranged in the housing; And
Wherein, sheet discharge tray is included between the primary importance and the second place movably tray component, primary importance is meant that at least a portion of tray component is arranged in the position that fixation unit is removed passage, thereby stop fixation unit to be removed from housing, the second place is meant that tray component is positioned at fixation unit and removes position outside the passage, removes from housing thereby allow fixation unit to remove passage along fixation unit.
32. image processing system as claimed in claim 31 is characterized in that, described tray component can move the support that is subjected to housing simultaneously between the primary importance and the second place.
33. image processing system as claimed in claim 32 is characterized in that, the lowermost portion present position of tray component is lower than the highest part of fixation unit when tray component is positioned at primary importance; And
Wherein, when tray component is positioned at the second place lowermost portion present position of tray component than the highest part height of fixation unit.
34. image processing system as claimed in claim 32 is characterized in that, one of tray component and housing have rotating shaft, and another is formed with the rotating shaft support section that rotatably supports this rotating shaft, allow tray component to be supported rotatably by housing.
35. image processing system as claimed in claim 32 is characterized in that, one of housing and tray component have outshot, and another is formed with the trench portions that is slidably supported this outshot, allow tray component to be supported slidably by housing.
36. image processing system as claimed in claim 35 is characterized in that, the configuration of described trench portions makes this groove guide tray component at first in the upward direction, guides tray component along the direction of intersecting with this direction that makes progress then.
37. image processing system as claimed in claim 35 is characterized in that, described tray component has outshot, and housing is formed with trench portions;
Wherein, described trench portions comprises the inside that is arranged on this trench portions and the stayed surface of supporting projection; And
Wherein, trench portions comprises first step part and the second step part that is arranged on the described stayed surface, and first step part and second step part are spaced-apart along the glide direction that outshot slides.
38. image processing system as claimed in claim 35 is characterized in that, described housing has outshot, and described tray component is formed with trench portions;
Wherein, described trench portions comprises the inside that is arranged on this trench portions and is highlighted the stayed surface that part supports; And
Wherein, trench portions comprises first step part and the second step part that is arranged on the described stayed surface, and first step part and second step part are spaced-apart along the glide direction that outshot slides.
39. image processing system as claimed in claim 31 is characterized in that, described housing comprises and being arranged on rotationally on the rear wall to cover the lid of described opening.
40. image processing system as claimed in claim 31, it is characterized in that, further comprise the inner orientation member that forms the recording medium transfer passage, by this recording medium transfer passage, recording medium is carried along throughput direction, the inner orientation member is arranged on the downstream position of fixation unit along throughput direction, and the inner orientation member is exposed to outside the housing by described opening.
41. image processing system as claimed in claim 40 is characterized in that, described inner orientation member is removably disposed in the housing by described opening.
42. the image processing system as under the claim 40 is characterized in that described roof is formed with the tray component installing port;
Wherein, described tray component is installed in the tray component installing port and forms the part of sunk part, and tray component and inner orientation member are integrally formed.
43. the image processing system as under the claim 31 is characterized in that described roof is formed with the tray component installing port;
Wherein, described tray component is installed in the tray component installing port and forms the part of sunk part;
Wherein, described roof comprises the fixation wall part, and this fixation wall part is arranged on the housing regularly and is positioned at the downstream that the throughput direction that is transferred along recording medium is positioned at tray component;
Wherein, described tray component has downstream end on throughput direction, described fixation wall part has contiguous described downstream end on throughput direction upstream extremity; And,
Wherein, the top of described downstream end is higher than the top of upstream extremity on the position.
44. image processing system as claimed in claim 31 is characterized in that, described tray component is made by heat stable resin.
45. the image processing system as under the claim 31 is characterized in that, further comprises a plurality of muscle, these a plurality of muscle are arranged on the sheet discharge tray top along the direction that is parallel to the throughput direction that recording medium is transferred.
46. image processing system as claimed in claim 31 is characterized in that, further comprises being arranged on the tablet that the sheet supplying cassette below the fixation unit promptly piles up with housing recording,
Wherein, the recording medium from the sheet supplying cassette supply is transferred by the recording medium transfer passage that is arranged between sheet supplying cassette top and the handle box below.
47. image processing system as claimed in claim 46 is characterized in that, described sheet supplying cassette is removably disposed in the housing by front side wall.
48. image processing system as claimed in claim 31 is characterized in that, described front side wall is formed with front openings; And wherein, described handle box is removably disposed in the housing by described front openings.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004204655 | 2004-07-12 | ||
| JP2004204655 | 2004-07-12 | ||
| JP2004285845 | 2004-09-30 | ||
| JP2005195949 | 2005-07-05 | ||
| JP2005195948 | 2005-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872427Y true CN2872427Y (en) | 2007-02-21 |
Family
ID=35912387
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100847004A Active CN100507730C (en) | 2004-07-12 | 2005-07-11 | Image forming device and fixing unit |
| CN 200520113065 Expired - Lifetime CN2872427Y (en) | 2004-07-12 | 2005-07-12 | Imager and fixing unit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100847004A Active CN100507730C (en) | 2004-07-12 | 2005-07-11 | Image forming device and fixing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN100507730C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080084103A (en) * | 2007-03-15 | 2008-09-19 | 삼성전자주식회사 | A image fixing device of image forming apparatus |
| JP4687804B2 (en) * | 2009-03-24 | 2011-05-25 | ブラザー工業株式会社 | Image forming apparatus |
| JP5533106B2 (en) * | 2010-03-23 | 2014-06-25 | 富士ゼロックス株式会社 | Fixing apparatus and image forming apparatus |
| JP6537012B2 (en) * | 2015-02-17 | 2019-07-03 | 富士ゼロックス株式会社 | Image forming apparatus and fixing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4760411A (en) * | 1985-08-06 | 1988-07-26 | Konishiroku Photo Industry Co., Ltd. | Electrostatic recording apparatus |
| JPS63146086A (en) * | 1986-12-10 | 1988-06-18 | Toshiba Corp | Recorder |
-
2005
- 2005-07-11 CN CNB2005100847004A patent/CN100507730C/en active Active
- 2005-07-12 CN CN 200520113065 patent/CN2872427Y/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1722010A (en) | 2006-01-18 |
| CN100507730C (en) | 2009-07-01 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150712 Granted publication date: 20070221 |
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