CN1724323A - The paper feeding unit that is used for imaging device - Google Patents

The paper feeding unit that is used for imaging device Download PDF

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Publication number
CN1724323A
CN1724323A CNA2005100847930A CN200510084793A CN1724323A CN 1724323 A CN1724323 A CN 1724323A CN A2005100847930 A CNA2005100847930 A CN A2005100847930A CN 200510084793 A CN200510084793 A CN 200510084793A CN 1724323 A CN1724323 A CN 1724323A
Authority
CN
China
Prior art keywords
paper
push rolls
feeding unit
paper feeding
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2005100847930A
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Chinese (zh)
Inventor
徐济晚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN1724323A publication Critical patent/CN1724323A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • 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)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

A kind of paper feeding unit that is used for the paper of container is provided to the type printer in the imaging device.Described paper feeding unit comprises: a pick-up roller that is used to transmit paper; A paper that picks up by described pick-up roller and a paper feeding unit that this paper is provided to a type printer are used to align.Described paper feeding unit comprises one first push rolls and one second push rolls; Be used for sensing be sent to described paper feeding unit paper one send sensor to; And be used for transmission of power at least one driving propulsion source to described first push rolls and described second push rolls.

Description

The paper feeding unit that is used for imaging device
Technical field
The present invention relates to a kind of imaging device.More specifically, the present invention relates to a kind of paper feeding unit, the paper that is stacked on sheet supplying cassette or the auxiliary paper supplies trays is sent on the type printer (printing engine) of imaging device.
Background technology
Usually, an imaging device comprises a sheet supplying cassette, a paper feeding unit, and a type printer and a paper are sent the unit.Sheet supplying cassette is holding paper page by page.Paper feeding unit picks up the paper in the sheet supplying cassette, and this paper is sent to type printer.Type printer forms image on the paper that sends.Paper is sent the paper that the unit will be printed on image and is sent.
Fig. 1 is the section drawing of the conventional paper feeding unit of a demonstration.This paper feeding unit 14 comprises a pick-up roller 32, one first transfer roller 10, one second transfer roller 20, a push rolls 60 and a dummy roll 70.Pick-up roller 32 picks up the paper P ' that is stacked on the sheet supplying cassette 30.First and second transfer rollers 10 and 20 transmit the paper P ' that picked roller 32 is picked up along paper transport path P.Push rolls 60 will be sent on the type printer that comprises a light-sensitive medium 52 from the paper P ' of first and second transfer rollers 10 and 20.
Push rolls 60 is by a revolution, and this motor is not described in the drawings.With reference to figure 2, dummy roll 70 contacts rotation with push rolls 60.Owing to be resisted against the friction force that push rolls 60 produces, dummy roll 70 with the opposite sense of push rolls 60 on rotate.
The picked roller 32 of paper P ' that is stacked in the sheet supplying cassette 30 is picked up.Thereby, transmit paper P ' by the joint between first and second transfer rollers 10 and 20 and arrive push rolls 60 up to paper.The front end of paper P ' aligns owing to colliding with push rolls 60 and dummy roll 70 at the contact area of push rolls 60 and dummy roll 70.Here, owing to the collide phenomenon of front portion 33 bendings of the paper P ' that produces of the front end of paper P ' and push rolls 60 and dummy roll 70 is called as warpage (curl) phenomenon.
Warping phenomenon is disadvantageous and inevitable in the process of alignment paper P '.When push rolls 60 rotation to transmit paper P ' time, the warpage part 33 of paper P ' flattens suddenly.In addition, transmit paper P ' with exposure rate (V1) faster rate (V2) than push rolls 60.This is because along with paper P ' warpage (P) flattens, paper P ' slides in the push rolls 60.Therefore, dummy roll 70 rotates suddenly.
As mentioned above, because moving of paper P ' is difficult to control the paper transfer rate by the control push rolls.And then, be difficult to control the margin of paper P ' front end.Therefore, compare, in the margin generation error of front end with default margin value (marginvalue).Reduced the print quality of imaging device thus.
Therefore, need a kind of imaging device, it has improved paper feeding unit and is sent to delivery rate in the type printer with the front end margin of guiding paper with the control paper.
Summary of the invention
An aspect of of the present present invention is to address the above problem at least and/or shortcoming, and following advantage is provided at least.Therefore, an aspect of of the present present invention is to provide a kind of paper feeding unit, controls the front end margin of paper with the paper delivery rate that is sent to the type printer of imaging device by the control paper.
In order to obtain above-mentioned aspect of the present invention, a kind of paper feeding unit is provided, it comprises: a pick-up roller that is used to pick up the paper that is held; Be used to the to align paper that picks up by pick-up roller and this paper is provided to a paper feeding unit of a type printer, described paper feeding unit comprises one first push rolls and one second push rolls; Be used for sensing be sent to described paper feeding unit paper one send sensor to; And at least one of be used to turn round described first push rolls and described second push rolls drives propulsion source.
Described driving propulsion source is formed by a motor, its turn round simultaneously described first push rolls and described second push rolls.
Paper feeding unit of the present invention also comprises a gear unit that is used for power is delivered to from described motor described first push rolls and described second push rolls.
Described gear unit comprises one first gear that is used for power is delivered to from described motor described first push rolls; And be connected to described first gear and with a tape cell of second push rolls of power from described first gear transmission to described paper feeding unit.
Described gear unit comprises a gear that is used for power is delivered to from described motor described first push rolls; And be connected to described gear and with the tape cell of power from described gear transmission to described second push rolls.
Here, preferably, described tape cell comprises one first belt pulley that is formed in described first push rolls, be formed on second belt pulley in described second push rolls and be installed on described first belt pulley and described second belt pulley in timing belt (timing belt).
According to the embodiments of the invention of said structure,, also can come accuracy control on paper, to print the top page limit by the exploitation speed of controlling described first and second push rolls even when the warpage of paper flattens suddenly.
In the following detailed description that other purposes of the present invention, advantage and feature will be undertaken by the accompanying drawing in conjunction with open the preferred embodiments of the present invention and obvious to those skilled in the art.
Description of drawings
Above-mentioned and other purposes of specific embodiment of the present invention and feature and advantage following explanation that will be in conjunction with the drawings and obvious.
Fig. 1 is the section drawing that shows conventional paper feeding unit.
Fig. 2 is the push rolls of paper feeding unit of displayed map 1 and the amplification sectional view of dummy roll.
Fig. 3 shows the section drawing of paper feeding unit according to an embodiment of the invention.
Fig. 4 is the planar view of the paper feeding unit of displayed map 3.
Fig. 5 shows the planar view of paper feeding unit according to another embodiment of the present invention.
In institute's drawings attached, identical Reference numeral will be understood that to refer to components identical, feature and structure.
The specific embodiment
The item that limits in specification sheets, for example detailed construction and element are used for auxiliary complete understanding to embodiments of the invention.Therefore, those skilled in the art are known can make various modifications and variations to embodiments of the invention under the situation that does not deviate from scope and spirit of the present invention.Equally, brief for the sake of simplicity, omit explanation to known function and structure.
Fig. 3 shows the paper feeding unit 100 that is used for imaging device according to an embodiment of the invention.The planar view of the paper feeding unit 150 of Fig. 4 displayed map 3.
As shown in Figure 3, paper feeding unit 100 comprises pick-up roller, first transfer roller 152, second transfer roller 154, sends sensor 140 and paper feeding unit 150 to.
Pick-up roller comprises one first pick-up roller 132 that is used for picking up page by page the page that is stacked on paper feed cassette 170.Second pick-up roller 142 is provided with to pick up the page that is stacked in the auxiliary paper supply dish.
First and second transfer rollers 152 and 154 are arranged on the rotation that contacts with each other among the paper transport path P on first pick-up roller 132.First and second transfer rollers 152 and 154 will be sent to paper feeding unit 150 by the paper that first pick-up roller 132 picks up.
Send the front portion that sensor 140 is formed on paper feeding unit 150 to.Send sensor 140 sensings to by the paper of first and second transfer rollers 152 and 154 transmission and the paper that transmits by second pick-up roller 142.Therefore, before paper arrives paper feeding unit 150, sense paper by sending sensor 140 to.Thus, send sensor 140 to control unit (not shown) output sensing signal.
Paper feeding unit 150 is preferably placed at the top of first and second transfer rollers 152 roughly and 154, and comprises first push rolls 110, second push rolls 120 and elastic component 126.The paper alignment that paper feeding unit 150 transmits first and second transfer rollers 152 and 154.The paper alignment that paper feeding unit 150 also transmits second pick-up roller 142, and with the paper feeding of alignment to the type printer (not shown).First and second push rolls 110 and 120 constitute and are engaged with each other and contact rotation.One side of elastic component 126 is supported by the main body (not shown) of imaging device.Opposite side is pushed second push rolls 120 to first push rolls 110.Thus, first and second push rolls 110 contact with a fixed pressure level each other with 120.
Fig. 4 shows the planar view of paper feeding unit 150.As shown in the figure, first push rolls 110 roughly centers on the part of first S. A. 111.Second push rolls 120 engages first push rolls 110, and centers on the part of second S. A. 121.In addition, first gear 112 is preferably formed on the side of first push rolls 110.Second gear 122 preferably is engaged in first gear 112 and is formed on the side of second push rolls 120.First gear 112 forms with second gear 122 has identical diameter, makes the gear 112 of winning have identical rotative speed with second gear 122.Reference marker 130 is to drive propulsion source.Motor is preferably used as the driving propulsion source in the present embodiment.The axle 131 of motor 130 is connected in motor gear 132.Motor gear 132 is engaged in first gear 112 and rotary power is delivered to first gear 112.Paper feeding unit comprises a plurality of elastic components, and elastic component is spring 126 in a particular embodiment, is used for pushing second push rolls 120 against first push rolls 110.Though be exemplified as spring 126, can the elastic component that uses other to be fit to.
Hereinafter will be with reference to the running of figure 3 and 4 explanation paper feeding units.
First pick-up roller 110 picks up the paper that is stacked in the paper feed cassette 170, so that paper is provided in the zone between first and second transfer rollers 152 and 154. Transfer roller 152 and 154 is installed among the paper transport path P.
Rotation by first and second transfer rollers 152 and 154 is sent to paper feeding unit 150 with paper.The paper that is picked up by second pick-up roller 142 in the auxiliary paper supplies trays 160 directly is provided in the paper feeding unit 150.Before paper reaches paper feeding unit 150, send sensor 140 to and sense paper and paper is alignd with paper feeding unit 150.
When paper contact is in first and second push rolls 110 of the state of suspending and 120 the time, the front end warpage of paper, this phenomenon is called as warping phenomenon.Align with good order and condition by the warping phenomenon paper.After alignment, control unit (not shown) running motor 130 is to be fed to paper in the type printer.First gear 112 of the driving power by transmitting motor 130 and second gear 122 turn round simultaneously first and second push rolls 110 and 120.
Here, motor 130 rotative speed of controlling the front end margin of paper with required being suitable for accurately rotates.Thereby first and second push rolls 110 and 120 are with accurate rotative speed rotation.In addition, because they rotate by engaging with a motor 130, be easy to rotate first and second push rolls 110 and 120 with identical speed.Therefore, if first and second push rolls 110 and 120 dally, avoided the paper slippage.Therefore, paper can accurately rotate the distance corresponding to the rotation amount of first and second push rolls 110 and 120.So, be easy to control the front end margin of paper.
Fig. 5 be show paper feeding unit 150 according to another embodiment of the present invention ' planar view.The structure of similar the foregoing description is except second gear on the side of the paper feeding unit 150 of present embodiment ' do not comprise second S. A. 121 that is installed in second push rolls 120.In addition, paper feeding unit 150 ' comprise in first S. A. 111 first belt pulley 113 and second belt pulley 123 in second S. A. 121.In addition, the paper feeding unit 150 of present embodiment ' comprise the timing belt 125 that is installed in first and second belt pulleys 113 and 123, in order to work in coordination with in first S. A. 111 and second S. A. 121.
In the present embodiment, the rotary power of motor 130 is passed to first gear 112.When being connected to first S. A., 111 rotations of first gear 112,110 rotations of first push rolls.If the rotation of first S. A. 111, second push rolls 120 is with the rotative speed rotation roughly the same with timing belt 125.Therefore, the friction force between first and second push rolls 110 and 120 is roughly the same.
As mentioned above, the control of the paper feeding unit in embodiment of the invention paper is sent to the paper transfer rate of type printer.By using, be easy to transmit paper relatively by two push rolls that drive the propulsion source running.Paper feeding unit reduces the change of the paper transfer rate of front end.This is by paper is realized with the top margin of light control paper by two push rolls.Therefore, can stably guarantee print quality.
Previous embodiment and advantage only are exemplary, the invention is not restricted to this.The present invention can be applicable to the device of other types.
The present invention has shown and has described specific embodiment, it will be understood by those skilled in the art that and can make various changes to form and details under the situation that does not deviate from the spirit and scope of the present invention.

Claims (10)

1. device that is used to transmit paper comprises:
Be used to transmit a pick-up roller of paper;
Be used to the to align paper that picks up by described pick-up roller and paper is provided to a paper feeding unit of a type printer, described paper feeding unit comprises one first push rolls and one second push rolls;
Be used for sensing be sent to described paper feeding unit paper one send sensor to; And
At least one of described first push rolls and described second push rolls of being used to turn round drives propulsion source.
2. device as claimed in claim 1, wherein, described driving propulsion source is a motor, its turn round simultaneously described first push rolls and described second push rolls.
3. device as claimed in claim 2 wherein, also comprises a gear unit that is used for power is delivered to from described motor described first push rolls and described second push rolls.
4. device as claimed in claim 3, wherein, described gear unit comprises:
Be used for power is delivered to from described motor one first gear of described first push rolls; And
Be connected to described first gear and with one second gear of power from described first gear transmission to described second push rolls.
5. device as claimed in claim 3, wherein, described gear unit comprises:
Be used for power is delivered to from described motor a gear of described first push rolls; And
Be connected to described gear and with the tape cell of power from described gear transmission to described second push rolls.
6. device as claimed in claim 5, wherein, described tape cell comprises one first belt pulley that power is provided to described first push rolls, to described second push rolls second belt pulley of power is provided and be installed in described first belt pulley and described second belt pulley between a timing belt.
7. device that is used to transmit paper comprises:
Be used to transmit a pick-up roller of paper;
Be used to the to align paper that picks up by described pick-up roller and this paper is provided to a paper feeding unit of a type printer, described paper feeding unit comprises one first push rolls and one second push rolls;
Be used for sensing be sent to described paper feeding unit paper one send sensor to;
At least one of described first push rolls and described second push rolls of being used to turn round drives propulsion source; And
At least one elastic component that described first and second push rolls are abut against each other and push.
8. device as claimed in claim 7, wherein, described driving propulsion source is a motor, its turn round simultaneously described first push rolls and described second push rolls.
9. device that is used to transmit paper comprises:
Be used to transmit a pick-up roller of paper;
Be used to the to align paper that picks up by described pick-up roller and this paper is provided to a paper feeding unit of a type printer, described paper feeding unit comprises one first push rolls and one second push rolls;
Be used for sensing be sent to described paper feeding unit paper one send sensor to;
At least one of described first push rolls and described second push rolls of being used to turn round drives propulsion source; And
Be used for power is delivered to from described motor a gear unit of described first push rolls and described second push rolls.
10. device as claimed in claim 9, wherein, described driving propulsion source is a motor, its turn round simultaneously described first push rolls and described second push rolls.
CNA2005100847930A 2004-07-24 2005-07-21 The paper feeding unit that is used for imaging device Pending CN1724323A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR58075/04 2004-07-24
KR1020040058075A KR20060008816A (en) 2004-07-24 2004-07-24 Paper transfering apparatus for image forming device

Publications (1)

Publication Number Publication Date
CN1724323A true CN1724323A (en) 2006-01-25

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CNA2005100847930A Pending CN1724323A (en) 2004-07-24 2005-07-21 The paper feeding unit that is used for imaging device

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US (1) US20060017212A1 (en)
KR (1) KR20060008816A (en)
CN (1) CN1724323A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931364A (en) * 2016-04-19 2016-09-07 广州广电运通金融电子股份有限公司 Split type bill issuing equipment and self-service financial equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101621727B1 (en) * 2014-11-18 2016-05-18 주식회사 더아이디 An appratus for providing a paer device and printer comprising the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674735A (en) * 1983-12-07 1987-06-23 R. Clark DuBois Automatic sheet feeder for copiers and other machines having sheet transport mechanisms and assemblies therewith
JPH07215499A (en) * 1993-11-01 1995-08-15 At & T Global Inf Solutions Internatl Inc Document aligning method concerning paper feeding device, paper feeding device and paper pick-up mechanism to be used in said paper feeding device
JP2000010373A (en) * 1998-06-26 2000-01-14 Matsushita Electric Ind Co Ltd Image forming device
US6507768B1 (en) * 2000-11-07 2003-01-14 Hewlett-Packard Co. Method and system to compensate for wear in a sheet handling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931364A (en) * 2016-04-19 2016-09-07 广州广电运通金融电子股份有限公司 Split type bill issuing equipment and self-service financial equipment
CN105931364B (en) * 2016-04-19 2019-02-26 广州广电运通金融电子股份有限公司 A kind of split type bill delivery apparatus and financial self-service equipment

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Publication number Publication date
KR20060008816A (en) 2006-01-27
US20060017212A1 (en) 2006-01-26

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