CN107187905B - Paper transport device and image forming apparatus - Google Patents
Paper transport device and image forming apparatus Download PDFInfo
- Publication number
- CN107187905B CN107187905B CN201610146452.XA CN201610146452A CN107187905B CN 107187905 B CN107187905 B CN 107187905B CN 201610146452 A CN201610146452 A CN 201610146452A CN 107187905 B CN107187905 B CN 107187905B
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- China
- Prior art keywords
- paper
- guide rail
- transport device
- registration roller
- rail
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
- B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/36—Article guides or smoothers, e.g. movable in operation
- B65H5/38—Article guides or smoothers, e.g. movable in operation immovable in operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Registering Or Overturning Sheets (AREA)
Abstract
The present invention relates to paper transport device and image forming apparatuses, it can be ensured that guide rail is identical as the clearance distance on the orthogonal direction of sheet transport direction.In the paper transport device, has the apparatus main body being provided with for the corrected registration roller pair of diagonal to the paper come from sheet feed section conveying, with the side door that can be opened and closed from the apparatus main body, and have: rail portion, its upstream side for being located at registration roller pair in sheet transport direction, by being set to the first guide rail of apparatus main body side and being constituted across opposite disposed the second guide rail in side door side of paper transportation path, second guide rail is at least divided into the first and second movable guiding rails on paper width direction, first and second movable guiding rails are configured to be swung up close to or away from the side of the first guide rail；And second guide rail have guide clearance adjustment section, the division position of the second guide rail is set in a manner of mobile on the direction orthogonal with sheet transport direction, for adjusting the clearance distance between the first guide rail and the second guide rail.
Description
Technical field
The present invention relates to the registration rollers to image forming apparatus to the paper transport device of conveying paper and to have the paper
Open the image forming apparatus of conveying device.
Background technique
In the past, as in the image forming apparatus for having paper transport device, before paper enters image forming part, it is
The skew of paper is corrected, registration roller pair is generally provided with.When top of form and the registration roller of stopping are to contacting,
Top of form stops, after top of form stopping, since conveying roller of the registration roller to upstream also continues paper feeding, so paper arches upward
It generates bending section (Loop), can be in contact with guide rail so as to cause after paper bending.It is therefore necessary to pre-set track
Clearance distance.If registration roller to the guide clearance on the direction orthogonal with paper conveyance direction of the delivery track of upstream side without
Method ensures a certain distance, then will affect the formation and shape of bending section, leads to clamped rear paper fold easy to form, and
Abnormal sound is easy to produce when paper sheet delivery.
As similar image forming apparatus, there is known image forming apparatuses as described in Patent Document 1.The figure
Lower part as forming device is provided with the first sheet feed section, the second sheet feed section and third sheet feed section, supplies in the first sheet feed section to second
On transport path between paper portion, it is provided with the position in curved guide portion, user or the adjustable curved guide portion of maintenance personal.
[patent document 1] Japanese Unexamined Patent Publication 23-68494
But in the image forming apparatus documented by above patent document 1, since moveable curved guide portion is arranged
Between the first sheet feed section and the second sheet feed section, therefore it can not solve in the prior art in the upstream side of registration roller pair due to can not
Ensure above-mentioned various problems caused by enough guide clearances.Also, in the above-described configuration, curved guide portion is one whole
Body is moved when moving with whole.
Summary of the invention
The present invention be exactly in view of the above problems and complete, it is intended that provide one kind can ensure it is pre-set
Guide clearance, it is ensured that identical as the clearance distance of (paper width direction) on the orthogonal direction of sheet transport direction, to make
Paper the paper transport device of smooth delivery of power and has the image forming apparatus of the paper transport device with will not generating fold.
In order to achieve the above purpose, in the paper transport device of the 1st invention, have and be provided with for from sheet feed section
The apparatus main body of the corrected registration roller pair of diagonal for the paper that conveying comes and the side door that can be opened and closed from the apparatus main body,
The paper transport device is characterized in that having: rail portion, and the upstream of the registration roller pair is located in sheet transport direction
Side, by be set to the first guide rail of described device main body side and across paper transportation path it is opposite disposed in the of the side door side
Two guide rails are constituted, and second guide rail is at least divided into the first and second movable guiding rails on paper width direction, and described the
One and second movable guiding rail be configured to be swung up close to or away from the side of first guide rail；And described second lead
Rail has guide clearance adjustment section, is set to described second in a manner of mobile on the direction orthogonal with sheet transport direction
The division position of guide rail, for adjusting the clearance distance between first guide rail and second guide rail.
According to this constitution, in paper transport device, it will be when being located in sheet transport direction by temporarily ceasing regulation
Between come to the rail portion of the upstream side of the corrected registration roller pair of the diagonal of paper wherein to make paper generate bending section
One side, i.e. the second guide rail are set to the side door that can be opened and closed relative to apparatus main body, and thus, it is possible to improve, there is a situation where paper jams
Under the easy degree of reply can reduce cost also, since the second guide rail is formed as one with side door.In addition, will
Second guide rail is configured to divide and can swing along paper width direction two, thus opens in the case where carrying out paper jam processing etc.
When closing side door, it will not determine with registration roller to colliding so as to extend to the second guide rail swimmingly
Near the clamping part of position roller pair.In addition, due in a manner of it can be moved on the direction orthogonal with sheet transport direction
Two guide rails setting adjustment guide rail, therefore pass through the mobile adjustment guide rail, it can be ensured that long guide rail will not be in segmentation portion because becoming
Shape or other reasons cause the distance of orbit gap different, ensure that gap between the first guide rail and the second guide rail with
Sheet transport direction is consistent on orthogonal direction, thus, it is possible to keep the stability of paper downstream roller conveying, and is subtracted
Less or eliminate paper curl generation.
2nd invention is characterized in that, on the basis of the paper transport device of the 1st invention, second guide rail is also equipped with
Protrusion, the protrusion are set to the both ends on paper width direction of second guide rail.According to this constitution, being closed in side door
When, which abuts with the first guide rail of apparatus main body side, so as to ensure the minimum clearance of paper sheet delivery guide rail.
3rd invention is characterized in that, on the basis of the paper transport device of the 1st or the 2nd invention, in second guide rail
Division position, be provided with paper sensor.According to this constitution, can ensure at the second guide rail for paper sensor certain
Insertion distance, be conducive to paper sensor to the stability of note detection.
4th invention is characterized in that, on the basis of the paper transport device of the 1st to the 3rd invention, in the guide clearance
Adjustment section is provided with the joint portion for synchronizing the described first and second movable guiding rail.According to this constitution, by making
Two parts synchronous interaction after segmentation, can effectively maintain the gap between guide rail, reduce or avoid the shadow to paper bending portion
It rings, to reduce or prevent the generation of the paper curl during logical paper.
5th invention is characterized in that, on the basis of the paper transport device of the 1st to the 4th invention, described first and second
Movable guiding rail can be swung centered on the joint portion, when closing the side door, first and second movable guiding rail
The one end in sheet transport direction downstream is swung to the direction of the clamping part close to the registration roller pair, when opening the side door,
Described one end of first and second movable guiding rail is swung to the direction far from the clamping part.According to this constitution, due to
One and second guide rail can swing, so and guide rail downstream can be made more to connect closing the contact of side door Shi Buyu registration roller
It is bordering on the clamping part of registration roller.
6th invention is characterized in that, on the basis of the paper transport device of the 1st to the 5th invention, second guide rail exists
The central portion of paper transportation path is divided.According to this constitution, two parts after the second guide rail can be made to be divided become each other
Symmetrical state, to preferably keep the gap of guide rail.And when switching side door, the second guide rail will not be made to be distorted.
7th invention is characterized in that, on the basis of the paper transport device of the 1st to the 6th invention, the side door according to
The mode rotated centered on the fulcrum setting up and down of the side of described device main body is opened and closed.According to this constitution, side door is from device
The angle of main body opening and closing can become larger, so as to improve easy degree when being handled when paper jam occurs.Also, due to
Side door openings are therefore more convenient to use towards user side.
8th invention is characterized in that, on the basis of the paper transport device of the 1st to the 7th invention, the registration roller is to being
Integrated roller.Since the length of integrated roller is bigger than paper width, the entire front end of paper can connect with the clamping part of stopping
Touching, to preferably top of form be made to be aligned with clamping part.
9th invention is characterized in that, on the basis of the paper transport device of the 1st to the 8th invention, the sheet feed section has
First paper feeding cassette and the second paper feeding cassette, the paper transport device further include: the first conveying path is used for from first paper supply
Box is to the registration roller to conveying paper；And second conveying path, it is used for from second paper feeding cassette to the registration roller pair
Paper is conveyed, second conveying path is longer than first conveying path, and conveying roller pair is equipped on second conveying path, described
Conveying roller pair rotates incessantly during paper transports.Make due to being not provided with any restrictions component etc. to the conveying roller pair
It constantly transports always paper, to make paper form bending section between conveying roller pair and registration roller pair, therefore can not
It can carry out good paper conveying with affecting to the conveying speed of registration roller pair.
In the image forming apparatus of the 10th invention, with paper sheet delivery dress described in any one of the 1st to the 9th invention
It sets.According to this constitution, image forming apparatus can be made to realize above-mentioned effect.
In paper transport device and image forming apparatus of the invention, realize between capable of ensuring pre-set guide rail
Gap is to make the excellent effect of paper with will not generating fold smooth delivery of power.
Detailed description of the invention
Fig. 1 is the sectional view for schematically showing the image forming apparatus that embodiments of the present invention are related to.
Fig. 2 is the sectional view for showing the detailed configuration near the registration roller pair that embodiments of the present invention are related to.
Fig. 3 is the perspective view schematically illustrated to the side door of embodiments of the present invention.
Fig. 4 is the perspective view that the rail portion of embodiments of the present invention is described in detail.
Symbol description
11: apparatus main body；11R: side wall；142: registration roller pair；143A, 143B: paper feed roller；3: fixing roller；4: transfer roll；
7: paper transportation path；6: the second paper feeding cassettes；5: the first paper feeding cassettes；155: paper sensor；G paper rail portion；G1: the first leads
Rail；G2: the second guide rail；S:PET film: D: side door；1000: protrusion；1001: adjustment guide rail；1002: movable guiding rail.
Specific embodiment
Firstly, the principle to image forming apparatus carries out simple illustration.In image forming apparatus of the present invention, has confession
Paper portion, paper sheet delivery portion, development section, fixing section, paper discharge unit.
Paper feed roller is set in paper sheet delivery portion.Multiple paper are accommodated with laminated arrangement in sheet feed section.Paper feed roller will
Paper 1 in sheet feed section, which is opened to take out to development section, to be conveyed.About the paper sheet delivery portion of present embodiment, can carry out below in detail
Thin explanation.
Development section is provided with photosensitive drums, and the direction of rotation of the photosensitive drums is provided with charged device, exposer, imaging
Device, transfer roll and cleaner.Transfer roll abuts with the surface (hereinafter referred to as rousing surface) of photosensitive drums and forms transfer nip.Sense
The drum surface of light drum uniform charged due to charged device.Drum surface after uniform charged is exposed device irradiation light, removes irradiation part
Charge to forming electrostatic latent image.The electrostatic latent image is attached to toner by development section, so that development is toner image.
The toner image for being formed in bulging surface in this way is transported to transfer roll clamping part because of the rotation of photosensitive drums, and is transferred to conveying and comes
Paper on.The transfer residual toner that the drum surface of photosensitive drums after toner image transfer is remaining is removed by cleaner, and
It is formed since electrification for next image.On the other hand, the paper after toner image transfer is transported to fixing section.
In fixing section, it is provided with fixing roller (heating roller) and crimps and formed the pressure roller of fixing roller clamping part with it.
Paper after toner image transfer is fixed the clamping conveying of roller clamping part, is fixed roller heating while pressurized roller pressurization at this time,
Thus the toner on surface is melted fixed to be fixed.In paper discharge unit, it is provided with discharge roller pair, discharge tray, again paper supply
Roller etc..Paper after above-mentioned toner image fixing is discharged in the case where being only formed on its surface image by discharge roller pair
To discharge tray.
In addition, being fixed toner image on surface in the case where the both sides at the surface of paper and the back side form image
It is inverted in reversion (reverse rotation) realization table that paper passes through discharge roller pair.Then, it by paper feed roller again etc., is supplied to again
Development section, with the surface the case where in the same manner as overleaf transfer toner image.The paper is being transported to fixing section and is being fixed tune
After toner picture, it is expelled in discharge tray by discharge roller pair.
Simple illustration has been carried out to the entirety of image forming apparatus of the present invention above.Then, referring to Fig.1 to this embodiment party
The paper sheet delivery portion of formula is illustrated.
Fig. 1 is the in-built schematic diagram for the image forming apparatus 10 for indicating that one embodiment of the present invention is related to.?
In Fig. 1, the diagram of development section, fixing section etc. is omitted, and shows the structure in paper sheet delivery portion emphatically.
As shown in Figure 1, being configured to the first paper feeding cassette 5 that can be loaded and unloaded and the second paper feeding cassette 6 relative to apparatus main body 11
It is arranged along vertical direction by multistage.The right side in the figure of the first overlapped paper feeding cassette 5 of vertical direction and the second paper feeding cassette 6
Side is configured with longitudinal paper transportation path 7 for conveying paper P upwards from the lower section of vertical direction, vertical
Side upwardly extends.Paper P is housed in the paper pencil state of multipage overlapping interior by the first paper feeding cassette 5 and the second paper feeding cassette 6 respectively
Portion.
In sheet transport direction, registration roller is configured in order from upstream to downstream to 142, transfer roll to 4 etc..In this reality
It applies in mode, registration roller is configured to integrated roller to 142.It, can by charging the integrated roller in this composition
Recycling is carried out to prevent paper powder from entering image forming part to the paper powder generated in sheet feed section, good image can be obtained.
More specifically, registration roller to 142 wherein one use metallic roll, metal static electrification can be allowed, electrostatic is used to obtain paper
On paper powder (or other sundries), then cleaned and import in dustbin (interchangeable), therefore by cleaning section by the rotation of metallic roll
Need to be arranged to the roller of a monoblock type.In addition, since the length of integrated roller is bigger than paper width, the entire front end of paper
It can be contacted with the clamping part of stopping, to preferably top of form be made to be aligned with clamping part.But this is only a kind of preferred
Embodiment, composition of the invention are not limited to this.In addition, registration roller is configured at the defeated of paper to 142 compared with transfer roll is to 4
Send the upstream side in direction.After paper P is exported from paper feeding cassette, registration roller is reached by paper transportation path to 142, fixed
When position roller stops to 142, the front edge of paper P is temporarily ceased, and registration roller is to the conveying roller pair (not shown) of upstream side
Continue to convey paper, therefore bending section (LOOP) can be formed on paper P, after foring a degree of bending section, positioning
Roller again conveys paper P to 142, to be corrected to the diagonal of paper P.Then, correspond to image forming part (not
Diagram) image form the moment, registration roller conveys 142 couples of paper P.Registration roller has positioning driven voller to 142
142A (the first roller) and registration roller 142B (the second roller).It positions driven voller 142A and is configured at side relative to paper transportation path 7
The side wall 11R.Registration roller 142B is configured at the opposite side of positioning driven voller 142A across paper transportation path 7.In positioning driven voller
The clamping part that paper P passes through is formed between 142A and registration roller 142B.
The first paper feeding cassette 5 and the second paper feeding cassette 6 on the right side, and paper feed roller is respectively configured above the front end of paper P
143A and 143B, paper feed roller 143A and 143B are driven in rotation, so that paper P be conveyed towards paper transportation path 7.Paper feed roller
143A is configured at the upstream side of sheet transport direction compared with registration roller is to 142, similarly, paper feed roller 143B and registration roller pair
142 compared to the upstream side for being also configured at sheet transport direction.It certainly, is here only to schematically show a kind of mode,
Other various modes can be used to convey paper P to paper transportation path 7.In addition, as shown, in apparatus main body 11
Side wall 11R be provided with side door D, be described in detail after about side door D.
In the following, the construction near 142 is described in detail in registration roller referring to Fig. 2.Fig. 2 indicates present embodiment
Sectional view of the registration roller to the construction near 142.As shown in Fig. 2, registration roller to 142 upstream side it is tight before place, be configured with
Paper sensor 155.Paper sensor 155 includes at least sensor body and receiving unit, naturally it is also possible to must including other
The component wanted.It is delivered in way of the registration roller to 142 in paper P from paper feeding cassette along paper transportation path 7, paper sensing
Device 155 detects the arrival of paper P.In the present embodiment, in order to ensuring that it is whole that paper sensor detects
Logical paper is configured to paper sensor 155 and covers the gross section of paper rail portion G as described below, i.e. from the first guide rail G1 cross
Across to the second guide rail G2.But it's not limited to that, it can also be in the prior art for detecting the sensing of logical paper using other
Device structure.
In addition, as shown in Fig. 2, being provided with paper rail portion G to 142 upstream side in registration roller.Paper rail portion G
By being set to the first guide rail G1 of 11 side of apparatus main body, being opposed to be set to side across paper transportation path 7 and the first guide rail G1
Second guide rail G2 of the side door D is constituted.In view of being easy to carry out paper jam processing when paper jam occurs, and can be from apparatus main body 11
The second guide rail G2 is arranged in the side door D of opening and closing.In addition, can reduce into since the second guide rail G2 to be integrally formed with side door D-shaped
This.As shown in Fig. 2, the first guide rail G1 and the second guide rail G2 forms the dotted line as folded by two arrows in figure when side door D is closed
Shown in guide clearance.In the front end of the second guide rail G2, it is pasted with before reaching clamping part of the registration roller to 142 to paper
The PET film S assisted is conveyed, thus, it is possible to paper P is directed to registration roller to the 142 tight preceding position of clamping part as much as possible
It sets, so as to improve the generation of paper curl and the correction of paper diagonal.In order to side door D opening and closing when registration roller to 142
It is not interfered mutually with PET film S and the second guide rail G2, the second guide rail G2 is at paper sensor 155 on paper sheet delivery road
The structure of two-part is configured in the width direction of diameter 7 by two segmentations, i.e..It, can be rear referring to attached about second guide rail G2
Figure is described in detail.
What needs to be explained here is that there is also be set to registration roller to 142 can be opened and closed when paper jam processing
The device of side door side.Compared with this composition, registration roller is set to 142 and maintains the apparatus main body sides of photosensitive drums and is easier to
Ensure the precision of print position.Therefore, in the case where registration roller is set to apparatus main body side to 142, for being located at positioning
Roller for the paper rail portion G of 142 upstream side, be separated into positioned at 11 side of apparatus main body the first guide rail G1 and be located at
Second guide rail G2 of the side side door D can be such that the paper jam at registration roller is to 142 handles and become easy.
In the following, being illustrated referring to Fig. 3 to the side door D of present embodiment.Fig. 3 is to show the apparatus main body of side door D
Perspective view.As shown in figure 3, side door D is configured at the side wall 11R of apparatus main body 11.Side door D is set to side wall with as shown in Figure 3
Centered on the fulcrum of the upper side and lower side of 11R, opened in a manner of it can be rotated along arrow shown in Fig. 3 relative to apparatus main body 11
It closes, is formed as a part of side wall 11R in the off state.Fulcrum is set with the downside before and after apparatus main body so as to open
The device closed is compared, and can make side in the structure of the fulcrum setting up and down of the side wall 11R of apparatus main body as in the present embodiment
The opening and closing angle of door D becomes larger, and is conducive to handle paper jam.
It is described in detail referring to second guide rail G2 of the Fig. 4 to present embodiment.Fig. 4 is to indicate to be beaten in side door D
When opening, the perspective view of the detailed configuration of the second guide rail G2.In Fig. 4, direction shown in arrow is set as front-rear direction, it will be with it
Orthogonal direction is set as left and right directions.As shown in figure 4, the second guide rail G2 in left-right direction, i.e. from rear side of apparatus main body to front side
It is formed the flake of substantially strip, and is fixed in side door D.The material and thickness that second guide rail G2 is formed be not special
Restriction, as long as will not influence effect of the invention.Side door D close when, across paper transportation path 7 and be set to
First guide rail G1 (not shown) of apparatus main body 11 is opposed to form paper sheet delivery rail portion G.As shown in figure 4, the second guide rail G2
Have protrusion 1000, adjustment guide rail 1001 and movable guiding rail 1002.
In the present embodiment, in order to improve in the case where generating paper jam carry out paper jam processing easiness and reduce at
This, the second guide rail G2 is arranged in can be from the side side door D of 11 freely openable of apparatus main body.In this case, if by
Two guide rail G2 are configured to the guide rail of an entirety, then generate collision to 142 in side door D opening and closing Shi Huiyu registration roller.Therefore, at this
In embodiment, as shown in figure 4, be configured in left-right direction, i.e. on paper width direction by the second guide rail G2 bis- segmentation to
Obtain two-part movable guiding rail 1002.In addition, in order to which more swimmingly the front end of the second guide rail G2 is inserted when switching side door D
Enter to registration roller to 142 clamping part, so as to before paper P reaches clamping part of the registration roller to 142 to the defeated of paper P
Be sent into row auxiliary, which is configured to centered on axis in left-right direction, front-rear direction freely
It swings, be swung up close to or away from the side of the first guide rail G1.
In the present embodiment, in order to ensure the gap between guide rail, protrusion is set at the left and right end of the second track G2
1000, orbit gap is vacated by abutting the protrusion 1000 with the first track G1.The protrusion 1000 is with from the second guide rail G2
Prominent certain height is certain to be formed so as to abut when side door D is closed with the first guide rail G1 of 11 side of apparatus main body
The mode in gap is arranged.The height of scheduled fixation can be set into the height of the protrusion 1000 protrusion, can also pass through other
Mode, such as it is arranged to adjustable height by spring.When side door D is closed, the protrusion 1000 and 11 side of apparatus main body
The first guide rail G1 abut, to form gap between the first guide rail G1 and the second guide rail G2, it is ensured that minimum clearance supplies
Paper passes through.Certainly, the setting position of protrusion 1000 is without being limited thereto, also can be set in the first side guide rail G1, as long as can
Ensure the gap between guide rail.
In addition, in the present embodiment, central portion of the second guide rail G2 in paper sheet delivery guide rail G is divided into two sections
Formula.Two parts size of the second guide rail G2 after being divided as a result, is symmetrical, can preferably keep the gap of guide rail.Certainly,
The division position of two guide rail G2 is without being limited thereto, as long as not interfering the implementation of present embodiment, so that it may be arbitrary position.
In the present embodiment, in the case where the both ends of the second guide rail G2 are provided with protrusion 1000, due to the second guide rail
G2 is movable guiding rail (can not fix), and is divided into two sections, so existing during conveying paper and being unable to ensure
A possibility that segmentaion position of two guide rail G2 is identical as the gap of two sides.In addition, due to the influence of the parts variations such as deformation, it can also
It can cause the segmentaion position (due to component unfixed with the first guide rail G1) of the second guide rail G2 is possibly can not be with two sides (protrusion
1000) the same gap is kept.In this case, in order to ensure the first guide rail G1 and the second guide rail G2 are on paper width direction
Gap be able to maintain unanimously, the second guide rail G2 setting will be by the adjustment that engages of two parts of the second guide rail G2 after two segmentations
Guide rail 1001.By making to move on the direction of the adjustment guide rail 1001 in front-rear direction, i.e. orthogonal with sheet transport direction, thus
The gap near the segmentaion position of the second track G2 with the first track G1 can be adjusted, it can be ensured that the second guide rail G2 and first
Gap between guide rail G1 is consistent on paper width direction, is thus improved to the undesirable condition of paper curl etc..
In addition, due to using in the present embodiment from the first guide rail G1 across the structure of the paper sensor to the second guide rail G2, and
And tremble in order to prevent, need to ensure at the second guide rail G2 certain insertion distance, therefore lead by the way that above-mentioned adjustment is arranged
Rail 1001, it can be ensured that paper sensor 155 is conducive to paper sensor to note detection in the insertion distance of the second guide rail G2
Stability.
It is preferred that being arranged on above-mentioned adjustment guide rail 1001 for that will be synchronized by two parts of the second guide rail G2 after two segmentations
The engagement member of linkage, i.e. fulcrum, such as the left and right directions that can be set in Fig. 4 are led through fixed second by after two segmentations
Two parts of rail G2 and the bolt sub-assembly of control shaft for adjusting guide rail 1001.Thereby, it is possible to make the whole front and back in Fig. 4 the second guide rail G2
Direction is swung or movement, so as to preferably keep the consistency of guide clearance.Also, in the present embodiment, due to
Two guide rail G2 are configured to two-part, therefore there is a possibility that generating segment difference with adjustment guide rail 1001, therefore by making to divide
Two parts synchronous interaction afterwards, can effectively maintain the consistency in the gap of guide rail, reduce or prevented the paper during logical paper
The generation of tension fold.It is carried out centered on adjusting the fulcrum on guide rail 1001 additionally, it is preferred that being arranged to the second above-mentioned guide rail G2
It swings.Specifically, when closing side door D, the one end in the sheet transport direction downstream of movable guiding rail 1002 is to close to registration roller
The direction of 142 clamping part is swung, when opening side door D, described one end of movable guiding rail 1002 is to far from the clamping part
Direction swing.It is of course also possible to use other constituted, as long as this composition will not influence the implementation of present embodiment.
In addition, in the present embodiment, the second guide rail G2 is divided into two sections, and be provided with adjustment guide rail in segmentation portion
1001, but not limited to this, such as the second guide rail G2 can also be divided into multistage, in this case, can also be at every section
Gap mounting and adjusting guide rail 1001 between the guide rail of segmentation.
It in the present embodiment, will be in paper in the paper transport device for conveying paper P along paper transportation path 7
It is located on conveying direction and carries out school to make paper P generate bending section by temporarily ceasing the stipulated time come the diagonal to paper P
Positive registration roller is set to a wherein side, i.e. the second guide rail G2 of the paper sheet delivery guide rail G of 142 upstream side can be relative to
The side door D that apparatus main body 11 is opened and closed, thus, it is possible to improve the easy degree of the reply in the case where paper jam occurs.
In addition, being configured to second guide rail G2 at the tight preceding paper sensor 155 configured in registration roller to 142 along paper
It opens the segmentation of width direction two and can swing, and be arranged at the both ends in the front-back direction in apparatus main body 11 of second guide rail G2
Protrusion.Thereby, it is possible to side door D be hindered to be opened and closed in the case where carrying out paper jam processing etc., and it can ensure the minimum of guide rail
Gap.
In addition, in the adjustment guide rail that the second guide rail G2 setting is engaged with the second guide rail G2 of two segmentations, and the adjustment is led
Rail is configured to move on the direction orthogonal with sheet transport direction, thereby, it is possible to ensure the consistency of guide clearance, because
Even if this is conveyed under the mode with rail friction in bending section of the registration roller to the paper P of 142 upstream side formation, also not
The fold of paper can be generated.
Present embodiment is described in detail above by reference to attached drawing, but not limited to this.For example, it is also possible to
Between one paper feeding cassette 143B and the second paper feeding cassette 143A, a conveying roller pair is independently added.Specifically, will be used for from second
Paper feeding cassette 143A is set as to second conveying path of the registration roller to 142 conveying paper than for from the first paper feeding cassette 143B to positioning
Roller is long to the first conveying path of 142 conveying paper, the additional setting conveying roller pair on second conveying path, and makes the conveying roller
It is uninterruptedly rotated to during paper transports.Limiting component etc. is not provided with to the conveying roller pair as a result, and makes it always constantly
Paper is transported, so that paper is made to form bending section between conveying roller pair and registration roller pair, it can not be to the conveying of registration roller pair
Speed carries out good paper conveying with affecting.
Structure of the invention be suitable for image forming apparatus by paper to registration roller to the paper transport device of conveying, with
And has the image forming apparatus of the paper transport device.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (10)
1. a kind of paper transport device has and is provided with for corrected fixed to the diagonal from the next paper of sheet feed section conveying
The apparatus main body of position roller pair and the side door that can be opened and closed from the apparatus main body, the paper transport device are characterized in that having:
Rail portion is located at the upstream side of the registration roller pair, by being set to described device main body side in sheet transport direction
The first guide rail and constituted across opposite disposed the second guide rail in the side door side of paper transportation path,
Second guide rail is at least divided into the first and second movable guiding rails on paper width direction, and described first and second
Movable guiding rail is configured to be swung up close to or away from the side of first guide rail；And
Second guide rail has guide clearance adjustment section, in a manner of mobile on the direction orthogonal with sheet transport direction
It is set to the division position of second guide rail, for adjusting the clearance gap between first guide rail and second guide rail
From.
2. paper transport device according to claim 1, which is characterized in that
Second guide rail is also equipped with protrusion, which is set to the both ends on paper width direction of second guide rail.
3. paper transport device according to claim 1 or 2, which is characterized in that
In the division position of second guide rail, it is provided with paper sensor.
4. paper transport device according to claim 1 or 2, which is characterized in that
The guide clearance adjustment section is provided with the joint portion for making the first and second movable guiding rails synchronous interaction.
5. paper transport device according to claim 1 or 2, which is characterized in that
First and second movable guiding rail can be swung centered on joint portion, when closing the side door, first He
The one end in the sheet transport direction downstream of the second movable guiding rail is swung to the direction of the clamping part close to the registration roller pair, when beating
When opening the side door, described one end of first and second movable guiding rail is swung to the direction far from the clamping part.
6. paper transport device according to claim 1 or 2, which is characterized in that
Second guide rail is divided in the central portion of paper transportation path.
7. paper transport device according to claim 1 or 2, which is characterized in that
The side door is opened and closed by the way of rotating centered on the fulcrum setting up and down of the side of described device main body.
8. paper transport device according to claim 1 or 2, which is characterized in that
The registration roller is to being integrated roller.
9. paper transport device according to claim 1 or 2, which is characterized in that
The sheet feed section has the first paper feeding cassette and the second paper feeding cassette,
The paper transport device further include: the first conveying path is used for from first paper feeding cassette to the registration roller to defeated
Paper feeding；And second conveying path, it is used for from second paper feeding cassette to the registration roller to conveying paper,
Second conveying path is longer than first conveying path,
Conveying roller pair is equipped on second conveying path, the conveying roller pair rotates incessantly during paper transports.
10. a kind of image forming apparatus, with paper transport device described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146452.XA CN107187905B (en) | 2016-03-15 | 2016-03-15 | Paper transport device and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146452.XA CN107187905B (en) | 2016-03-15 | 2016-03-15 | Paper transport device and image forming apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN107187905A CN107187905A (en) | 2017-09-22 |
| CN107187905B true CN107187905B (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610146452.XA Active CN107187905B (en) | 2016-03-15 | 2016-03-15 | Paper transport device and image forming apparatus |
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| Country | Link |
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| CN (1) | CN107187905B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6911357B2 (en) * | 2016-01-21 | 2021-07-28 | セイコーエプソン株式会社 | Control method of printing system, medium transfer mechanism, medium transfer mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008019063A (en) * | 2006-07-13 | 2008-01-31 | Ricoh Co Ltd | Paper feeder and image forming device |
| CN101290486A (en) * | 2007-04-20 | 2008-10-22 | 京瓷美达株式会社 | Drawer mechanism and image forming apparatus equipped with the same |
| US8408829B2 (en) * | 2007-04-27 | 2013-04-02 | Canon Kabushiki Kaisha | Recording apparatus having an adjustable restraining member |
| CN104276437A (en) * | 2013-07-11 | 2015-01-14 | 佳能精技股份有限公司 | Sheet bundle binding processing apparatus and image forming system having the same |
| CN104276436A (en) * | 2013-07-11 | 2015-01-14 | 佳能精技股份有限公司 | Sheet bundle binding processing apparatus and image forming system having the same |
| CN104291149A (en) * | 2013-07-17 | 2015-01-21 | 佳能精技股份有限公司 | Sheet bundle binding processing apparatus and image forming system having the same |
| CN104925578A (en) * | 2014-03-17 | 2015-09-23 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Paper folding mechanism, paper post-treatment device and binding system |
| CN104925577A (en) * | 2014-03-17 | 2015-09-23 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Paper folding mechanism, paper sheet post-treatment apparatus, and binding system |
-
2016
- 2016-03-15 CN CN201610146452.XA patent/CN107187905B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008019063A (en) * | 2006-07-13 | 2008-01-31 | Ricoh Co Ltd | Paper feeder and image forming device |
| CN101290486A (en) * | 2007-04-20 | 2008-10-22 | 京瓷美达株式会社 | Drawer mechanism and image forming apparatus equipped with the same |
| US8408829B2 (en) * | 2007-04-27 | 2013-04-02 | Canon Kabushiki Kaisha | Recording apparatus having an adjustable restraining member |
| CN104276437A (en) * | 2013-07-11 | 2015-01-14 | 佳能精技股份有限公司 | Sheet bundle binding processing apparatus and image forming system having the same |
| CN104276436A (en) * | 2013-07-11 | 2015-01-14 | 佳能精技股份有限公司 | Sheet bundle binding processing apparatus and image forming system having the same |
| CN104291149A (en) * | 2013-07-17 | 2015-01-21 | 佳能精技股份有限公司 | Sheet bundle binding processing apparatus and image forming system having the same |
| CN104925578A (en) * | 2014-03-17 | 2015-09-23 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Paper folding mechanism, paper post-treatment device and binding system |
| CN104925577A (en) * | 2014-03-17 | 2015-09-23 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Paper folding mechanism, paper sheet post-treatment apparatus, and binding system |
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|---|---|
| CN107187905A (en) | 2017-09-22 |
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