CN207867220U - Original copy feedway and image forming apparatus - Google Patents
Original copy feedway and image forming apparatus Download PDFInfo
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- CN207867220U CN207867220U CN201820356005.1U CN201820356005U CN207867220U CN 207867220 U CN207867220 U CN 207867220U CN 201820356005 U CN201820356005 U CN 201820356005U CN 207867220 U CN207867220 U CN 207867220U
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- original copy
- pallet
- rotary district
- spring element
- image forming
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Abstract
The utility model provides a kind of original copy feedway and image forming apparatus, which includes the original copy pallet for placing original copy, detection unit, pickup roller, and the detection unit includes：Swingle, it is movably arranged below the original copy pallet by axis, first end including stretching out the original copy pallet mounting surface, with the second end opposite with the first end below the original copy pallet mounting surface, the rotary area of the second end is divided into the first Rotary District when bearing lightweight original copy, and bear be more than the lightweight original copy when the second Rotary District；Detection sensor, to detect the rotation of the second end near first Rotary District；Spring element is mounted at second Rotary District to apply deboost to the second end for entering second Rotary District.The utility model can improve the accuracy of detection and reset speed to lightweight original copy.
Description
Technical field
The original copy feedway of resetting time after original copy detects can be reduced the utility model is related to a kind of, and uses the original
The image forming apparatus of original text feedway.
Background technology
Existing office space is mostly to use a set of image forming apparatus (MFP：Multi-Functional
Peripheral) using as public office equipment, image forming apparatus is acted by following steps：Original copy feedway is used
In putting or conveying original copy, scanning element obtains the optical analog picture signal of original copy by exposing, and is sent to image shape
At unit, image forming unit makes optical analog picture signal form electrostatic latent image on photographic department surface, and transfer section is recycled to make
Electrostatic latent image is transferred to after forming toner image on the medium exported by paper feed, then is determined medium by fixation unit
Movie queen is discharged to paper discharge unit.
It is to pass through installation in general, when original copy of the original copy feedway in order to detect the original copy or manual feed that convey automatically
Original copy pallet on actuator and photo interrupter realize, when work, so that actuator is rotated using the dead weight of original copy, lead to
The actuator of rotation is crossed to cover photo interrupter, and is judged as there is original copy.But in this mechanism, due to that can make at present
The specification of original copy expands, for example, thin paper and small size paper, even this light-weight original copy one is it is necessary that actuating
Device rotates, and still, if reducing the rotary force of actuator thus, recuperability also reduces so that recovery time increases, and causes to need
In control the time of return of actuator is estimated larger, there are unfavorable conditions as degradation.
Utility model content
The purpose of this utility model is to provide a kind of original copy feedway that can reduce resetting time after original copy detects, and
Using the image forming apparatus of the original copy feedway.
Specifically, the utility model provides a kind of original copy feedway, including places the original copy pallet of original copy, is mounted on institute
State detected below original copy pallet the original copy whether there is or not detection unit,
It is connected to after the signal of the detection unit and pickup roller of the pressure to be conveyed, the detection is applied to the original copy
Unit includes：
Swingle is movably arranged on by axis below the original copy pallet, including stretches out the original copy pallet mounting surface
First end, and opposite with first end the second end below the original copy pallet mounting surface, the second end
The rotary area in portion is divided into the first Rotary District when bearing lightweight original copy, and bear be more than the lightweight original copy when second rotation
Area；
Detection sensor, to detect the rotation of the second end near first Rotary District；
Spring element is mounted at second Rotary District to apply to the second end for entering second Rotary District
Deboost.
In the another embodiment of the utility model, a kind of image forming apparatus is provided, including：
Original copy feedway conveys original copy to be transferred, including：The original copy pallet of the original copy is placed, is mounted on described
Detected below original copy pallet the original copy whether there is or not detection unit, the original copy is applied after being connected to the signal of the detection unit
Pickup roller of the pressure to be conveyed；
Scanning element scans the original copy to obtain optical analog picture signal；
Image forming unit converts the optical analog picture signal to forming toner image on photographic department；
Transfer section, output after the toner image being formed on the photographic department is transferred on medium；
The detection unit includes：
Swingle is movably arranged on by axis below the original copy pallet, including stretches out the original copy pallet mounting surface
First end, and opposite with first end the second end below the original copy pallet mounting surface, the second end
The rotary area in portion is divided into the first Rotary District when bearing lightweight original copy, and bear be more than the lightweight original copy when second rotation
Area；
Detection sensor, to detect the rotation of the second end near a Rotary District；
Spring element is mounted at second Rotary District to apply to the second end for entering second Rotary District
Deboost.
The utility model is by that can detect the lightweight on original copy pallet mounted on the detection sensor of the first Rotary District
Original copy, and need not be contacted with the spring element positioned at the second Rotary District in detection process.By the weight more than lightweight original copy
When amount pressure or the pressure of pickup roller, the second end into the second rotary area can be contacted with spring element, and lose phase
Elastic force Rapid reset is utilized after answering pressure.The utility model can improve the accuracy of detection and reset speed to lightweight original copy.
Description of the drawings
Fig. 1 is the image forming apparatus structural schematic diagram of one embodiment of the utility model；
Fig. 2 is the detection unit structural schematic diagram of the original copy feedway of one embodiment of the utility model；
Fig. 3 is status diagram when detection unit shown in Fig. 2 detects lightweight original copy；
Fig. 4 is status diagram when detection unit is pressurized in one embodiment of the utility model.
Specific implementation mode
Hereinafter, the image forming apparatus that embodiment is related to is described in detail with reference made to the accompanying drawings.In addition, same place in each figure
It is marked with same symbol.Definition and medium relevant " conveying direction " are by each transfer roller from paper feeding cassette towards the side of paper discharge unit
To that is, using paper feeding cassette end as " upstream side ", paper discharge unit end is used as " downstream side ".In addition, definition and relevant " the conveying side of original copy
To " be by original copy transfer passage from original copy pallet towards the direction of scanning element, i.e., using original copy pallet end as " upstream side ",
Scanning element end is used as " downstream side "." length " refers to the distance along the original copy of " conveying direction " or the two sides of medium, " on
Side " and " lower section " refer to "up" and "down" direction when image forming apparatus as shown in Figure 1 is normally positioned over ground.
Fig. 1 is the image forming apparatus structural schematic diagram of one embodiment of the utility model.
In Fig. 1, image forming apparatus 100 can be the MFP (Multi-Function as compounding machine
Peripherals), the equipment such as printer or duplicator.It is illustrated by taking MFP as an example in the following description.
MFP 100 includes an ontology 11 for installing each component, and the top of ontology 11 is provided with conveying original copy
Original copy feedway 12 and operation panel 13.Operation panel 13 includes the operation portion 14 and touch plate type being made of various keys
Display unit 15.
The scanning element 16 for reading original copy is provided in the lower part of original copy feedway 12, scanning element 16 is printed by light
Head exposes to obtain the optical analog picture signal of original copy.It is also equipped with image forming unit 17 in ontology 11 and accommodates each
The paper feed that multiple paper feeding cassettes 18 of kind size medium are constituted.
Image forming unit 17 includes providing the tone of yellow (Y), magenta (M), cyan (C), black (K) a variety of colors
Agent box 28 (28Y, 28M, 28C, 28K), and the photographic department according to the optical analog picture signal of scanning element 16 generation image
20Y, 20M, 20C, 20K, and by the transfer of the image primary transfer on photographic department 20Y, 20M, 20C, 20K to transfer belt 21
Portion.The cleaning unit of residual toner in cleaning photosensitive drums is installed at photographic department 20Y, 20M, 20C, 20K.Each photographic department
There are one photosensitive drums, cleaning unit, which generally comprises, to be arranged in the upward doctor blade of photosensitive drum shaft and cleaning knife for setting, doctor blade and
Cleaning knife can be cleared up the remaining toner of photosensitive drum surface when photosensitive drums rotate.
Transfer belt 21 is erected on driven roller 32 and driven voller 33,34, and driven roller 32 is opposite with secondary transfer roller 35 to match
It sets.When medium S is by between driven roller 32 and secondary transfer roller 35, secondary transfer roller 35 applies transfer voltage will be in transfer belt 21
Toner image be transferred on medium S.Toner in cleaning transfer belt 21 is provided near the driven voller 34 of transfer belt 21
Cleaner 36.
In paper feed between secondary transfer roller 35, it is equipped with the separate roller 37 for taking out the medium S in paper feeding cassette 18 and biography
Roller 38 is sent, the fixing device 39 being fixed to medium S epigraphs is provided in the downstream of secondary transfer roller 35.In fixing device 39
Downstream is provided with the transfer roller 40 that medium S is discharged to paper discharge unit 41.
Further, two-sided transmitting path 42 can also be set in the downstream of fixing device 39.Two-sided transmitting path 42 makes Jie
It is guided to 35 direction of secondary transfer roller after matter S reversions, to carry out printed on both sides to medium S.
As shown in Figure 2,3, 4, in an embodiment of the utility model, a kind of original copy feedway 12 is disclosed,
Whether the original copy pallet 121 including placing original copy has original copy on 121 lower section detection original copy pallet 121 of original copy pallet
Detection unit is connected to after the signal of detection unit and applies pickup roller of the pressure to be conveyed to current original copy.Specific detection
Unit includes swingle, detection sensor and spring element.
Swingle 122 is movably arranged on 121 lower section of original copy pallet by axis 125 comprising stretches out original copy pallet 121 and loads
The first end 1222 in face, and opposite with first end 1222 the second end 1221 below 121 mounting surface of original copy pallet；
Rotary area of the second end 1221 after the compression of first end 1222 is divided into the first Rotary District when bearing lightweight original copy, and holds
The second Rotary District when by more than lightweight original copy.
Detection sensor 123 is located at the first Rotary District nearby to detect the rotation of the second end 1221.
Spring element 124 is mounted at the second Rotary District to apply reverse push to the second end 1221 for entering the second Rotary District
Power.
In the present embodiment, the first end 1222 that 121 mounting surface of original copy pallet is stretched out with swingle 122, as inspection
Survey the test side that whether there is of original copy, using the second end 1221 as original copy pallet 121 on there are occlusion detections when original copy to sense
Device 123 blocks end.
When there is lightweight original copy to be positioned on original copy pallet 121, first end 1222 is depressed by lightweight original copy, swingle
122 are rotated using the tie point of axis 125 as axle center, so that the second end 1221 is entered the first Rotary District, by blocking or touching
Detection sensor 123 is activated, detection sensor 123 then sends out to the control unit of image forming apparatus 100 and detects after activation
There are the signal of original copy, control unit then to control 126 downlink of pickup roller of original copy feedway 12 on current original copy pallet 121, or
So that original copy pallet 121 is increased, pickup roller is made to contact with the lightweight original copy on original copy pallet 121 and be conveyed after applying pressure.
The pressure of pickup roller 126 can increase the pressure of 122 first end 1222 of swingle, the second end opposite at this time
1221 can also enter the second Rotary District accordingly, and be contacted with spring element 124.When losing the pressure of pickup roller 126, spring element
124 can realize the second end 1221 elastic force push, make the second end 1221 accelerate to return to the first Rotary District, and reset in time.
Present embodiment can be when original copy be less than normal weight thin paper or when small size paper (lightweight), pass through position
Detection sensor 123 in the first Rotary District obtains detection information, the spring element 124 without triggering the second Rotary District.
Due to lightweight original copy to be detected, the rotation angle of the first Rotary District can be arranged it is smaller, to improve detection
It can be resetted quickly while precision.Spring element 124 is not completely be overlapped with the first Rotary District, and only the second end 1221 enters the
It can be just in contact with spring element 124 behind two Rotary Districts.
When the weight of original copy is normal or weight more than lightweight original copy, the pressure of first end 1222 can be made
Swingle 122 increases rotation angle and spins up speed, keeps the second end 1221 single to control in detection trigger sensor 123
While member sends out signal, spring element 124 can be also contacted and squeezed with spring element 124 into the second Rotary District, at this point, be pressurized
Spring element 124 then can apply a thrust to the second end 1221；In this case, as original copy conveying is completed to lead to first end
The pressure in portion 1222 disappears, then the second end 1221 is also under the effect of the elastic force of spring element 124, and swingle 122 can be in bullet at this time
Rapid return under the elastic force of power part pushes.If the pressure of first end 1222 is to gradually reduce (the pressure position of pickup roller 126 and rotation
1222 position of first end of bull stick 122 is staggered), then the second end 1221 can slowly be detached from the thrust range of spring element 124, directly
To completely disengage with the contact of spring element 124, make swingle 122 return to original copy less than normal weight when the location of, then
It resets again.
The spring element 124 used in present embodiment can be helical spring or leaf spring.
When mounted, detection sensor 123 and spring element 124 can be mounted on the bottom surface of original copy pallet 121, be located at second
The spring element 124 of Rotary District can be overlapped with the swing-around trajectory of the second end 1221 of swingle 122, and detection sensor 123 is then
Near the swing-around trajectory of the second end 1221 of swingle 122, by the second end 1221 to detection sensor 123
Signal emission port block or appear realize original copy whether there is or not detection.
Wherein, as shown in Fig. 2, detection sensor 123 and spring element 124, which may be mounted at edge, is placed on original copy pallet 121
On original copy conveying direction same straight line on, and the bottom surface spring element 124 of opposite original copy pallet 121 is not when being squeezed
Height is less than the test point (i.e. signal emission port) in detection sensor 123.
As shown in figure 4, in an embodiment of the utility model, set above the downstream of original copy pallet 121
It is equipped with pickup roller 126, pickup roller 126 is for being entered in original copy transfer passage original copy by sending on original copy pallet 121.Pickup roller
126 in sending, and being to fall before walks original copy sending to being contacted with original copy on original copy pallet 121, then by rotating.To utilize stranding
Paper bowl 126, the first end 1222 of swingle 122 can be stretched out the position setting of the mounting surface of original copy pallet 121 with stranding
After paper bowl 126 declines at corresponding position；After the decline of pickup roller 126, not only original copy is pressed, while rotation can be pressed
The first end 1222 of bar 122, makes swingle 122 spin up speed, and increases rotation angle to make the second end 1221
Elastic component 124 is squeezed after into the second Rotary District, at this point, the weight without considering original copy, as long as pickup roller 126 leaves
Original copy pallet 121, then spring element 124 be applied to the second end 1221 thrust can all make swingle 122 faster return first
The return time is reduced in Rotary District.
In addition, when original copy conveys, also a kind of mode not instead of pickup roller 126 declines, original copy pallet 121 rise with
Pickup roller 126 contacts, and the similarly suitable first end 1222 by swingle 122 of the structure is mounted on the side of 126 lower section of pickup roller
Case.
For swingle 122, it can be adjusted by controlling the weight ratio of first end 1222 and the second end 1221
State when rotation sensitivity and the non-stress when rotation is saved, and in the case where meeting triggering requirement, can be minimized
The weight of the second end 1221.Such as：The weight of first end 1222 can be made to be less than the weight of the second end 1221, make rotation
Bar 122 is generally held in inclined state when being not affected by original copy pressure.It is whole when making first end 1222 by slight pressure
A swingle 122 can be rotated into the first Rotary District, and the returning quickly when pressure disappears.
Although the description of the several embodiments of the utility model, but these embodiments are intended only as example and propose
, it is not intended to limit the scope of the utility model.These new embodiments can be implemented with various other ways,
In the range of not departing from the main idea of utility model, various omissions, displacement, combination and change can be carried out.These embodiments
It is all contained in the scope of the utility model and main idea with its deformation, and it is new to be contained in this practicality recorded in claims
In type and its equivalency range.
Claims (10)
1. a kind of original copy feedway, including：The original copy pallet of original copy is placed, is mounted below the original copy pallet described in detection
Original copy whether there is or not detection unit, be connected to after the signal of the detection unit and pickup of the pressure to be conveyed applied to the original copy
Roller, which is characterized in that the detection unit includes：
Swingle is movably arranged on by axis below the original copy pallet, including stretches out the first of the original copy pallet mounting surface
End, and opposite with first end the second end below the original copy pallet mounting surface, the second end
Rotary area is divided into the first Rotary District when bearing lightweight original copy, and bear be more than the lightweight original copy when the second Rotary District；
Detection sensor, to detect the rotation of the second end near first Rotary District；
Spring element is mounted at second Rotary District reversed to apply to the second end for entering second Rotary District
Thrust.
2. original copy feedway according to claim 1, which is characterized in that
The spring element is helical spring or leaf spring.
3. original copy feedway according to claim 1, which is characterized in that
The detection sensor and the spring element are mounted on the bottom surface of the original copy pallet, and the relatively described original copy pallet
Height of the spring element described in bottom surface under non-stress is less than the test point in the detection sensor.
4. original copy feedway according to claim 1, which is characterized in that
The weight of the first end is less than the weight of the second end, and the swingle is made integrally to be protected when being not affected by pressure
It holds in inclined state.
5. original copy feedway according to claim 4, which is characterized in that
The first end of the swingle is located at below the pickup roller above the original copy pallet.
6. a kind of image forming apparatus, including：
Original copy feedway conveys original copy to be transferred, including：The original copy pallet of the original copy is placed, the original copy is mounted on
Detect below pallet the original copy whether there is or not detection unit, be connected to after the signal of the detection unit and pressure applied to the original copy
With the pickup roller conveyed；
Scanning element scans the original copy to obtain optical analog picture signal；
Image forming unit converts the optical analog picture signal to forming toner image on photographic department；
Transfer section, output after the toner image being formed on the photographic department is transferred on medium；
It is characterized in that, the detection unit includes：
Swingle is movably arranged on by axis below the original copy pallet, including stretches out the first of the original copy pallet mounting surface
End, and opposite with first end the second end below the original copy pallet mounting surface, the second end
Rotary area is divided into the first Rotary District when bearing lightweight original copy, and bear be more than the lightweight original copy when the second Rotary District；
Detection sensor, to detect the rotation of the second end near a Rotary District；
Spring element is mounted at second Rotary District reversed to apply to the second end for entering second Rotary District
Thrust.
7. image forming apparatus according to claim 6, which is characterized in that
The spring element is helical spring or leaf spring.
8. image forming apparatus according to claim 6, which is characterized in that
The detection sensor and the spring element are mounted on the bottom surface of the original copy pallet, and the relatively described original copy pallet
Height of the spring element described in bottom surface under non-stress is less than the test point in the detection sensor.
9. image forming apparatus according to claim 6, which is characterized in that
The weight of the first end is less than the weight of the second end, and the swingle is made integrally to be protected when being not affected by pressure
It holds in inclined state.
10. image forming apparatus according to claim 9, which is characterized in that
The first end of the swingle is located at below the pickup roller above the original copy pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356005.1U CN207867220U (en) | 2018-03-15 | 2018-03-15 | Original copy feedway and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356005.1U CN207867220U (en) | 2018-03-15 | 2018-03-15 | Original copy feedway and image forming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867220U true CN207867220U (en) | 2018-09-14 |
Family
ID=63456033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820356005.1U Active CN207867220U (en) | 2018-03-15 | 2018-03-15 | Original copy feedway and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207867220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796496A (en) * | 2019-04-02 | 2020-10-20 | 夏普株式会社 | Sheet left behind reporting device, document feeding device, and image forming apparatus |
-
2018
- 2018-03-15 CN CN201820356005.1U patent/CN207867220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796496A (en) * | 2019-04-02 | 2020-10-20 | 夏普株式会社 | Sheet left behind reporting device, document feeding device, and image forming apparatus |
| CN111796496B (en) * | 2019-04-02 | 2022-12-13 | 夏普株式会社 | Sheet left behind reporting device, document feeding device, and image forming apparatus |
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