CN207867218U - Original copy feedway and image forming apparatus - Google Patents

Abstract

A kind of original copy feedway of the utility model offer and image forming apparatus, the original copy feedway includes the original copy pallet for placing original copy, with the original copy transfer passage that the original copy is delivered to scanning element, the reading front sensor for determining whether the original copy reaches is installed at the downstream of the original copy transfer passage, it is equipped with whether detection current location has the resistive force sensor of the original copy in the upstream end of the original copy transfer passage, is equipped on the original copy pallet and detects the movable sensor whether original copy moves.The utility model is according to the feedback signal of each sensor, you can the length for quickly determining current original copy, without the length using original copy transfer passage, therefore, it is possible to shorten the length of original copy transfer passage to reduce the bulk volume of whole image forming apparatus；And it need not convert, can directly be read out to the data of acquisition again after determining width.

Description

Original copy feedway and image forming apparatus

Technical field

The utility model is related to a kind of original copy feedways that can simplify identification original copy length wise, and use the original copy The image forming apparatus of 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.

In the prior art, to original copy feedway conveying original copy carry out length detection means, in the following manner into Row：(1) it at from reading position to any distance of the original copy transfer passage of paper supply/separate roller, sets and differentiates length direction Threshold value, i.e., calculated plus surplus with the distance between downstream test point to upstream test point；(2) or with relative to The full-size of the width in the direction that conveying direction intersects starts to read, then after distinguishing width, to the number read According to converting, the length of original copy is finally determined.However, the former is necessary to ensure that more than a certain amount of transport path, cause entirely to scheme As the ontology of forming apparatus can become larger, the latter needs to convert to the data after reading with full-size, influences processing speed Degree.

Utility model content

The purpose of this utility model is to provide a kind of original copy feedway that can simplify and identify original copy length wise, and adopts With 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, and will be described Original copy is delivered to the original copy transfer passage of scanning element, is equipped at the downstream of the original copy transfer passage and determines the original copy The reading front sensor whether reached, the upstream end of the original copy transfer passage be equipped with detection current location whether have it is described The resistive force sensor of original copy is equipped on the original copy pallet and detects the movable sensor whether original copy moves.

In the another embodiment of the utility model, a kind of image forming apparatus is provided, including：Original copy supply dress It sets, conveys original copy to be transferred；Scanning element scans the original copy to obtain optical analog picture signal；Image forming unit, The optical analog picture signal is converted to forming toner image on photographic department；Transfer section will be formed in the photographic department On the toner image be transferred on medium after output；The original copy feedway includes the original copy support for placing the original copy Disk, and the original copy is delivered to the original copy transfer passage of the scanning element, pacify at the downstream of the original copy transfer passage Equipped with the reading front sensor whether the determination original copy reaches, it is equipped with whether detection current location has the original in upstream end The resistive force sensor of original text is equipped on the original copy pallet and detects the movable sensor whether original copy moves.

The utility model is according to the feedback signal of each sensor, you can the length for quickly determining current original copy, without Using the length of original copy transfer passage, therefore, it is possible to shorten the length of original copy transfer passage to reduce whole image forming apparatus Bulk volume；And it need not convert, can directly be read out to the data of acquisition again after determining width.

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 original copy feedway structural schematic diagram of 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 of the two sides of the original copy or medium along " conveying direction ", " width Degree " refers to the distance of the two sides of the original copy or medium perpendicular to " conveying direction ", and " top " and " lower section " refers to as shown in Figure 1 "up" and "down" direction of image forming apparatus when being 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 Fig. 2, in an embodiment of the utility model, a kind of original copy feedway 12 is disclosed comprising The original copy pallet 121 of original copy is placed, and original copy is delivered to the original copy transfer passage 122 being read out at scanning element 16, it is former Original text transfer passage 122 is made of multipair conveying roller pair, is equipped with whether determining original copy arrives at the downstream of original copy transfer passage 122 Up to the reading front sensor 124 at scanning element 16, it is equipped with whether detection original copy leads in the upstream end of original copy transfer passage 122 The resistive force sensor 125 crossed is equipped with the movable sensor 126 whether detection original copy moves on original copy pallet 121.

When original copy conveys, original copy advances along original copy transfer passage 122 and front end reaches when reading front sensor 124, Show that current original copy comes into the state that can be scanned the reading of unit 16, while front sensor 124 are read in original copy triggering, figure As the control unit of forming apparatus 100 can obtain the detection information of current resistive force sensor 125 simultaneously, due to resistive force sensor Original copy delivered length between 125 and reading front sensor 124 is known, therefore, as resistive force sensor 125 does not detect currently To original copy, show the length of current original copy within the scope of a preset minimum length；As resistive force sensor 125 detects Current location also has original copy not pass through, shows current original copy length at least more than aforementioned minimum length, can then go to obtain at this time The information of movable sensor 126 on original copy pallet 121, if the information that corresponding original copy moves is not detected in movable sensor 126, Then the length surplus of original copy shows that the length of original copy is more than minimum between movable sensor 126 and resistive force sensor 125 A time level length for length；If movable sensor 126 detects that present bit is equipped with the information of original copy movement, show the length of original copy Surplus is more than a time level length and enters next stage length range.

The utility model can quickly determine the length of current original copy, without profit according to the feedback signal of each sensor With the length of original copy transfer passage 122, the length therefore, it is possible to shorten original copy transfer passage 122 is formed with reducing whole image 11 volume of ontology of device 100.In addition, it is not necessary to convert again to the data of acquisition after determining width, can directly into Row is read.

In the present embodiment, it is provided with original copy being clamped in the entrance of original copy transfer passage 122 and is sent into original copy conveying Paper supply/the separate roller 123 in channel 122, and resistive force sensor 125 can be located at the downstream of paper supply/separate roller 123, so as to close Reason reaches detection using the length of original copy transfer passage 122 and original copy pallet 121 without additionally increasing the length of the two Purpose.

More accurately to measure original copy length, movable sensor 126 can be arranged multiple and each movable sensor 126 and distinguish Length direction along original copy is arranged at intervals on original copy pallet 121.When detecting, some movable sensor 126 detects original copy, And original copy is not detected in adjacent upstream movable sensor 126, then shows that original copy length detects the mobile sensor of original copy with this 126 corresponding length dimension of device is identical.

When the spacing distance of each movable sensor 126 is arranged, as basic point with resistive force sensor 125, according to different originals The length of original text is divided, as B5, A4, A3 equidimension correspondence edge placement at a movable sensor 126 is installed respectively, only Corresponding movable sensor 126 is wanted to detect original copy information, you can to achieve the purpose that quickly determining current original copy length.

It further, can also be in the width of 121 upper edge original copy of original copy pallet in an embodiment of the utility model It spends direction and corresponding width sensor (not shown) is installed.Width sensor is detected the width of current original copy, and The length of original copy is inferred with this.Width sensor can be arranged one, and the original copy less than current width sensing station is sentenced Break as normal original copy length range, and the original copy more than current width sensing station is judged as overlength original copy length range, with Realize the quick identification of original copy length.

To improve measurement accuracy, which equally may be used multiple and interval setting in the width direction, to know Not subtleer original copy change width situation.

Resistive force sensor 125, movable sensor 126 and the width sensor used in the above embodiment, can connect Touch class or block class sensor, if original copy and the sensor of current location generate it is interactive, you can as judging that present bit is equipped with The foundation of original copy.

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, and the original copy is delivered to the original of scanning element Original text transfer passage, which is characterized in that

The reading front sensor for determining whether the original copy reaches is installed at the downstream of the original copy transfer passage, described The upstream end of original copy transfer passage is equipped with whether detection current location has the resistive force sensor of the original copy, in the original copy support It is equipped on disk and detects the movable sensor whether original copy moves.

2. original copy feedway according to claim 1, which is characterized in that

The movable sensor along the length direction of the original copy be spaced on the original copy pallet setting it is multiple.

3. original copy feedway according to claim 2, which is characterized in that

Spacing distance between multiple movable sensors and the resistive force sensor is divided with the length of different original copys.

4. original copy feedway according to claim 1, which is characterized in that

The entrance of the original copy transfer passage is provided with paper supply/separate roller, the resistive force sensor be located at the paper supply/point Downstream from roller.

5. original copy feedway according to claim 1, which is characterized in that

The width sensor along the installation of the width direction interval of the original copy is additionally provided on the original copy pallet.

6. a kind of image forming apparatus, including：

Original copy feedway conveys original copy to be transferred；

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 original copy feedway includes placing the original copy pallet of the original copy, and the original copy is delivered to the scanning element Original copy transfer passage, the reading forward pass for determining whether the original copy reaches is installed at the downstream of the original copy transfer passage Sensor is equipped with whether detection current location has the resistive force sensor of the original copy in the upstream end of the original copy transfer passage, It is equipped on the original copy pallet and detects the movable sensor whether original copy moves.

7. image forming apparatus according to claim 6, which is characterized in that

The movable sensor along the length direction of the original copy be spaced on the original copy pallet setting it is multiple.

8. image forming apparatus according to claim 7, which is characterized in that

Spacing distance between multiple movable sensors and the resistive force sensor is divided with the length of different original copys.

9. image forming apparatus according to claim 6, which is characterized in that

The entrance of the original copy transfer passage is provided with paper supply/separate roller, the resistive force sensor be located at the paper supply/point Downstream from roller.

10. image forming apparatus according to claim 6, which is characterized in that

The width sensor along the installation of the width direction interval of the original copy is additionally provided on the original copy pallet.