CN112520475A - Paper feeding mechanism and paper document processing equipment with same - Google Patents
Paper feeding mechanism and paper document processing equipment with same Download PDFInfo
- Publication number
- CN112520475A CN112520475A CN202011421003.4A CN202011421003A CN112520475A CN 112520475 A CN112520475 A CN 112520475A CN 202011421003 A CN202011421003 A CN 202011421003A CN 112520475 A CN112520475 A CN 112520475A
- Authority
- CN
- China
- Prior art keywords
- paper
- slope
- blocking
- guide
- elastic sheet
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/20—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/52—Stationary guides or smoothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0638—Construction of the rollers or like rotary separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/66—Article guides or smoothers, e.g. movable in operation
- B65H3/68—Article guides or smoothers, e.g. movable in operation immovable in operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- B65H43/08—Photoelectric devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
Abstract
The invention relates to a paper feeding mechanism and paper document processing equipment with the paper feeding mechanism, in particular to a paper separating port for limiting the passing of single paper, wherein the paper separating port comprises a guide part and an elastic first blocking part, the guide part comprises a guide surface, the guide surface is correspondingly arranged on the advancing path of the paper and is used for guiding the paper which is contacted with the guide surface to be more deviated to the first blocking part and enabling the first blocking part to be deformed by the pressure of the paper, so that the first blocking part continuously applies downward pressure to the continuously advancing paper and further increases the frictional resistance of the paper when the paper passes through the paper separating port so as to ensure that only the single paper which is directly contacted with a paper conveying roller and has the maximum kinetic energy can overcome the frictional resistance and pass through the paper separating port.
Description
Technical Field
The invention relates to a paper feeding mechanism and paper document processing equipment with the same, in particular to improvement of a paper separating structure.
Background
Document processing apparatuses such as printers, facsimile machines, scanners, and the like have a paper feed mechanism to sequentially transport stacked recording papers to a work area. In this process, in order to prevent overlapped feeding, that is, two or more sheets are fed simultaneously during feeding, a paper separating structure is usually provided, as shown in fig. 8, in a conventional paper feeding mechanism, a paper feeding rubber roller 103 drives a first recording paper 104 to advance by rolling thereof, and is influenced by friction generated when the first recording paper 104 advances, a second recording paper 105 is also driven forward, a first limiting portion 100 and a second limiting portion 101 are provided on a recording paper advancing path, the first limiting portion 100 and the second limiting portion 101 form a narrow paper separating opening, the height of the paper separating opening is controlled to be larger than the thickness of one recording paper and smaller than the thickness of two recording papers, so that only one recording paper can enter during one feeding process to realize the paper separating function.
However, the structure for realizing paper separation by limiting the paper feeding height is often unstable, and is influenced by the production dimensional tolerance of parts on one hand and the assembly tolerance of a machine on the other hand, so that the error sources are more, and the height of the paper separation port cannot be ideally made so as to meet the requirement; and the smaller the paper thickness is, the smaller the required paper separating port height is, the higher the precision requirement on parts is, and what is directly reflected is that the production cost of the machine is improved, and the yield is reduced.
Disclosure of Invention
Therefore, in view of the above problems, the present invention provides a paper feeding mechanism and a paper document processing apparatus having the paper feeding mechanism.
The invention is realized by adopting the following technical scheme:
the invention provides a paper feeding mechanism, which comprises a paper feeding roller, a paper separating port and a paper separating mechanism, wherein the paper feeding roller rolls and pushes paper to advance by virtue of friction between the paper feeding roller and the paper, for limiting the passage of a single sheet, the sheet separation port includes a guide portion provided on an advancing path of the sheet and a first obstructing portion, the first obstructing portion being elastic, the guide portion including a guide surface, the paper guide device is used for guiding the paper which touches the guide surface to be more deviated to the first blocking part and enabling the first blocking part to be deformed by the paper pressure, so that the first blocking part continuously applies downward pressure to the paper which continues to advance, and the friction resistance of the paper passing through the paper separating opening is increased, so that only a single paper which is directly contacted with the paper feeding roller and has the maximum kinetic energy can overcome the friction resistance and pass through the paper separating opening.
The guide part is a slope-shaped structure arranged on an advancing path of the paper based on manufacturing and installation considerations, and the first blocking part is an elastic sheet close to the guide part and lower than the slope top of the guide part.
The paper conveying roller is rotatably assembled on the support, the guide portion is formed on the support, an elastic sheet fixing portion is arranged on one side, opposite to the guide portion, of the guide portion, the elastic sheet is fixed on the elastic sheet fixing portion, and the free end of the elastic sheet faces towards and is arranged close to the guide portion.
The paper box is prevented from being mistakenly jacked to the elastic sheet when being inserted and installed, and the elastic sheet fixing part is provided with a protection step approximately close to the elastic sheet restraining end.
In order to ensure that the paper can deflect towards the elastic sheet after contacting the slope, the advancing direction of the paper inclines towards the top of the slope of the guiding part.
Wherein, for the frictional resistance that further increases the paper process, further improve paper feed mechanism and divide the stability and the reliability of paper function, divide the paper mouth still to include the second hindrance portion of rigidity, second hindrance portion, guide portion and first hindrance portion constitute the paper feed passageway of unevenness jointly on the advancing path of paper to the increase paper is in the process divide the resistance that receives when the paper mouth, force the paper to produce tortuous deformation when passing through.
Wherein the second blocking part includes a first slope disposed on an advancing path of the paper sheet, the first slope being disposed side by side with the guide part and forming a stepped structure having a head with the guide part, a top of the first slope being lower than a top of the guide part, and the first blocking part being lower than the top of the first slope, in consideration of manufacturing and installation.
Wherein, for further improving paper feed mechanism's stability and reliability of branch paper function, guide portion, first hindrance portion and second hindrance portion are equipped with two sets of symmetry on the width direction of paper.
Based on the paper feeding mechanism, the invention also provides paper document processing equipment which is provided with the paper feeding mechanism.
Preferably, the paper document processing apparatus is a printer.
The invention has the following beneficial effects: the paper separating port provided by the invention has low requirement on the dimensional accuracy of parts, and greatly reduces the part cost and the production cost compared with the traditional method that two pieces of paper are limited by the width of the paper separating port; meanwhile, the requirement on the position precision of the assembly of the parts at the paper separating port is not high, a high-precision tool does not need to be manufactured, and the production yield is improved; and according to the difference of the friction coefficient between the rubber roller and the recording paper, the paper separating function is ensured to be stable and effective, functional failure or instability caused by part deviation caused by transportation and the like is avoided, and the reliability is good.
Drawings
FIG. 1 is a schematic view showing a paper tray and a paper feeding mechanism mounted together in the embodiment;
FIG. 2 is a schematic view showing the paper tray and the paper feeding mechanism detached in the embodiment;
FIG. 3 is a perspective view (angle one) of the paper feeding mechanism in the embodiment;
FIG. 4 is a perspective view (angle two) of the paper feeding mechanism in the embodiment;
FIG. 5 is a perspective view (angle three) of the paper feed mechanism in the embodiment;
FIG. 6 is a schematic view showing a deformation of a first recording sheet passing through an uneven sheet feeding path in the embodiment;
FIG. 7 is a schematic view of a guard step in the embodiment;
fig. 8 is a schematic view of a prior art dispensing opening.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1, as a preferred embodiment of the present invention, a printer is provided, which includes a paper tray 1 for storing recording paper, and a paper feeding mechanism 2 disposed at a paper outlet of the paper tray 1, wherein the paper feeding mechanism 2 is configured to separately guide the recording paper stacked in the paper tray 1 one by one into a printing area of the printer. Referring to fig. 2, the paper tray 1 includes a tray body 11, a paper outlet 14 is disposed at one end of the tray body 11, a stack 13 of recording paper stacked one by one is stored in the tray body 11, a supporting plate 12 for supporting the stack 13 of recording paper is disposed at the bottom of the stack 13 of recording paper in the tray body 11, the supporting plate 12 is movably disposed, and the supporting plate 12 can swing to lift the stack 13 of recording paper upward to make the recording paper contact with the paper feeding rubber roller 23, so that the recording paper advances under the rolling driving of the paper feeding rubber roller 23. The present embodiment is oriented statically with the installation and use state of the printer, that is, the pallet 12 is located below the stack 13 of recording sheets, and the stack 13 of recording sheets is located above the pallet 12. The liftable pallet 12 belongs to the prior art, and a person skilled in the art can realize the lifting of the pallet 12 by arranging a driving mechanism, such as a pneumatic element, which is not described in detail in this embodiment. The paper feeding mechanism 2 includes a first bracket 21, a second bracket 22 and a paper feeding rubber roller 23, the first bracket 21 and the second bracket 22 are oppositely arranged, the paper feeding rubber roller 23 is arranged at the position of the paper outlet 14 to receive the recording paper, two ends of the paper feeding rubber roller 23 are respectively and rotatably assembled on the first bracket 21 and the second bracket 22, and the paper feeding rubber roller 23 can be driven to rotate by a driving mechanism (such as a motor). The sheet tray 1 and the sheet feeding mechanism 2 are fixedly fitted directly (or indirectly) together to achieve positioning therebetween.
Referring to fig. 3 to 4, the first bracket 21 and the second bracket 22 are arranged substantially in a mirror image, the first bracket 21 and the second bracket 22 are respectively provided with a first guide part 215 and a second guide part 225, the first guide part 215 and the second guide part 225 are arranged on an advancing path of the recording paper conveyed by the paper feed roller 23, and the first guide part 215 and the second guide part 225 are in a slope-shaped structure and respectively have a guide slope, so that the soft recording paper can obliquely feed the paper by being guided by the guide slope so as to substantially fit the first guide part 215 and the second guide part 225 after being conveyed to reach the first guide part 215 and the second guide part 225. A first spring plate 213 and a second spring plate 223 are further arranged on the advancing path of the recording paper conveyed by the paper conveying roller 23, specifically, the first support 21 has a first spring plate fixing part 212, the second support 22 has a second spring plate fixing part 222, the first spring plate 213 is fixed on the first spring plate fixing part 212, the second spring plate 223 is fixed on the second spring plate fixing part 222, the first guide part 215 has a first slope top 214, the second guide part 225 has a second slope top 224, the heights of the first spring plate 213 and the second spring plate 223 are lower than the heights of the first slope top 214 and the second slope top 224, and the free end of the first resilient plate 213 is close to the first guide portion 215, the free end of the second resilient plate 223 is close to the second guide portion 225, when the recording paper is guided by the first guide part 215 and the second guide part 225 to obliquely feed the recording paper, the recording paper is biased toward the first resilient piece 213 and the second resilient piece 223, so that the first resilient piece 213 and the second resilient piece 223 form a barrier to the advance of the recording paper. The resilient pieces (the first resilient piece 213 and the second resilient piece 223) and the guide portions (the first guide portion 215 and the second guide portion 225) constitute a sheet separation opening for separating sheets, when two stacked recording sheets enter the sheet separation mechanism at the same time, that is, the uppermost first recording sheet P1 and the second recording sheet P2 below the first recording sheet P1 are simultaneously fed forward (the sheet feed roller 23 rolls, the first recording sheet P1 is driven to advance by the friction between the sheet feed roller 23 and the first recording sheet P1; the second recording sheet P2 is driven to advance by the friction between the first recording sheet P1 and the second recording sheet P2), and are both biased by the guide portions to move toward the resilient pieces, the resilient pieces are deformed by the pressure of the first recording sheet P1 and the second recording sheet P2, so that the resilient pieces continuously apply a downward force to the first recording sheet P1 and the second recording sheet P2 by their resilient restoring forces, thereby increasing the frictional resistance to the passage of the recording paper. Due to different materials, the surface of the paper feed roller 23 is rougher than that of the recording paper, and the friction coefficient of the contact surface of the paper feed roller 23 and the first recording paper P1 is greater than that of the contact surface of the first recording paper P1 and the second recording paper P2, so that the friction force for driving the first recording paper P1 to advance is far greater than that for driving the second recording paper P2 to advance, during paper feeding, the first recording paper P1 has enough kinetic energy to push open the elastic sheet, and is finally smoothly extruded from between the elastic sheet and the guide portion, while the friction force borne by the second recording paper P2 is small and is not enough to push open the elastic sheet, so that paper feeding cannot be performed, paper separation of the first recording paper P1 and the second recording paper P2 is completed, and overlapping feeding of the two recording papers into a printing area is avoided. By symmetrically arranging the first support 21 and the second support 22, a paper separation structure for restricting recording paper at two symmetrical positions in the width direction of the recording paper is formed to further improve the stability and reliability of the paper separation function of the paper feed mechanism 2.
As shown in fig. 5 to 6, when the first and second supports 21 and 22 are respectively provided with a first slope 211 and a second slope 221, the first slope 211 and the second slope 221 are respectively arranged in parallel with the first and second guide portions 215 and 225, the tops of the first slope 211 and the second slope 221 are lower than the tops of the first slope 211 and the second slope 224, so as to form a step structure with a height difference, and the first and second resilient pieces 213 and 223 are also lower than the tops of the first slope 211 and the second slope 221 (i.e. the bottom surfaces of the recording paper fed in), the first guide portion 215 (the second guide portion 225), the first slope 211 (the second slope 221), and the first resilient piece 213 (the second resilient piece 223) form a paper feeding passage for uneven recording paper, so as to increase the frictional resistance to the passage of the recording paper, as shown in fig. 6, when the first recording paper P1 with soft properties passes through the uneven paper feeding passage, in order to overcome the obstacle of the step structure formed by the first slope 211 and the second slope 221 at the same time, a zigzag shape deformation is required to pass through the paper feed path, and the second recording paper P2 is not deformed enough to overcome the obstacle because of a small frictional force. The provision of the first slope 211 and the second slope 221 further ensures that the second recording sheet P2 does not overlap the recording sheet P1 at the same time. That is to say, the first elastic piece 213 and the second elastic piece 223 are used as a first blocking structure for the recording paper to advance, when the recording paper passes through, enough kinetic energy is needed to overcome the resistance generated by the deformation of the elastic first elastic piece 213 and the second elastic piece 223, otherwise, the recording paper cannot be extruded out; the first slope 211 and the second slope 221 are used as a second barrier structure for the advancing of the recording paper, when the recording paper passes through, enough kinetic energy is needed to enable the recording paper to deform so as to adapt to the shape of the step structure formed by the rigid first slope 211 and the rigid second slope 221, otherwise, the recording paper cannot be extruded out.
The arrangement of the first slope 211 and the second slope 221 is not essential, and experiments prove that the structure with the elastic pieces (the first elastic piece 213 and the second elastic piece 223) and the guide parts (the first guide part 215 and the second guide part 225) can meet the paper separation function, but the first slope 211 and the second slope 221 are preferably added, so that the reliability of the paper separation function can be further increased.
Referring to fig. 7, the bottom end of the second resilient plate fixing portion 222 has a protection step 2221, the protection step 2221 is close to the constrained end of the second resilient plate 223, and the protection step 2221 can prevent the paper tray 1 from being mistakenly pushed against the second resilient plate 223 when being inserted and installed. Similarly, the first elastic piece fixing portion 212 has the same structure of the protection step.
Preferably, the advancing direction of the recording paper is inclined toward the top of the slope of the first guide portion 215 (the second guide portion 225) to ensure that the recording paper can be deflected toward the first resilient piece 213 (the second resilient piece 223) after touching the first guide portion 215 (the second guide portion 225).
In addition, a detector can be arranged on the second bracket 22, and the detector can send a signal to enable the supporting plate 12 to descend and return after detecting that the recording paper passes through, so that the recording paper does not contact with the paper conveying rubber roller 23, and the paper feeding is stopped. The detector 225 may be implemented by various sensors, such as a blocking type photoelectric sensor.
The paper feeding mechanism provided by this embodiment uses the first guide portion 215 (the second guide portion 225), the first slope 211 (the second slope 221), and the first elastic sheet 213 (the second elastic sheet 223) to form the paper dividing opening, and has the following advantages:
1. the requirement on the dimensional accuracy of parts is not high, and compared with the traditional method that the width of a paper separation port is used for limiting the paper to enter two pieces of paper, the cost of the parts and the production cost are greatly reduced;
2. the position precision requirement on the assembly of the parts at the paper separating port is not high, a high-precision tool does not need to be manufactured, and the production yield is improved;
3. according to the difference of friction coefficients between the rubber roller and the recording paper, the paper separating function is guaranteed to be stable and effective, and functional failure or instability caused by part deviation due to transportation and the like can be avoided.
In addition to the printer, the paper feeding mechanism 2 can be applied to other document processing devices, such as a copier, a facsimile machine, a scanner, etc., to separate stacked sheets.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A paper feeding mechanism comprises a paper feeding roller which rolls and pushes paper to advance by virtue of friction between the paper feeding roller and the paper, and further comprises a paper separating opening arranged in the thickness direction of the paper and used for limiting a single paper to pass through, and is characterized in that: the paper separating port comprises a guiding part and a first blocking part which are arranged on a paper advancing path, the first blocking part is elastic, the guiding part comprises a guiding surface and is used for guiding the paper which touches the guiding surface to be more deviated to the first blocking part, and the first blocking part is deformed under the pressure of the paper, so that the first blocking part continuously applies downward pressure to the paper which continues to advance, the friction resistance of the paper passing through the paper separating port is further increased, and the paper separating port is ensured to be capable of overcoming the friction resistance to pass through the paper separating port only through a single piece of paper which is in direct contact with a paper conveying roller and has the largest kinetic energy.
2. The paper feed mechanism according to claim 1, characterized in that: the guide part is a slope-shaped structure arranged on the advancing path of the paper, the first blocking part is an elastic sheet close to the guide part, and the elastic sheet is lower than the slope top of the guide part.
3. The paper feed mechanism according to claim 2, characterized in that: the paper conveying roller is rotatably assembled on the support, the guide portion is formed on the support, an elastic sheet fixing portion is arranged on one side, opposite to the guide portion, of the guide portion, the elastic sheet is fixed on the elastic sheet fixing portion, and the free end of the elastic sheet faces towards and is close to the guide portion.
4. The paper feed mechanism according to claim 3, characterized in that: the elastic sheet fixing part is provided with a protection step approximately close to the elastic sheet restraint end.
5. The paper feed mechanism according to claim 2, characterized in that: the advancing direction of the paper is inclined toward the top of the guide portion.
6. The paper feed mechanism according to claim 1 or 2, characterized in that: the paper separating port further comprises a rigid second blocking portion, and the second blocking portion, the guiding portion and the first blocking portion form an uneven paper feeding channel on a forward path of paper, so that resistance borne by the paper when the paper passes through the paper separating port is increased, and the paper is forced to generate zigzag deformation when the paper passes through the paper separating port.
7. The paper feed mechanism according to claim 6, characterized in that: the second blocking portion comprises a first slope arranged on an advancing path of the paper, the first slope and the guiding portion are arranged side by side and form a step structure with a fall with the guiding portion, the top of the first slope is lower than that of the guiding portion, and the first blocking portion is lower than that of the first slope.
8. The paper feed mechanism according to claim 6, characterized in that: the guide portion, the first blocking portion and the second blocking portion are symmetrically arranged in two groups in the width direction of the paper.
9. A sheet document processing apparatus including a sheet feeding mechanism, characterized in that: the paper feeding mechanism is the paper feeding mechanism of any one of claims 1 to 8.
10. The paper document processing apparatus according to claim 9, wherein: the paper document processing apparatus is a printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421003.4A CN112520475A (en) | 2020-12-08 | 2020-12-08 | Paper feeding mechanism and paper document processing equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421003.4A CN112520475A (en) | 2020-12-08 | 2020-12-08 | Paper feeding mechanism and paper document processing equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112520475A true CN112520475A (en) | 2021-03-19 |
Family
ID=74998056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011421003.4A Pending CN112520475A (en) | 2020-12-08 | 2020-12-08 | Paper feeding mechanism and paper document processing equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112520475A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344101A (en) * | 2000-09-18 | 2002-04-10 | 旭丽股份有限公司 | Paper distribution guide for automatic paper feeder |
| CN1488511A (en) * | 2002-08-20 | 2004-04-14 | ���ǵ�����ʽ���� | Device for preventing double-paper feed in printer |
| CN101638011A (en) * | 2008-07-30 | 2010-02-03 | 精工爱普生株式会社 | Feeding device and recording device |
| CN101746621A (en) * | 2008-12-03 | 2010-06-23 | 株式会社理光 | Manual sheet feeder and image forming apparatus including same |
| CN103101780A (en) * | 2011-11-11 | 2013-05-15 | 京瓷办公信息系统株式会社 | Sheet feeding device and image forming apparatus |
| CN105082788A (en) * | 2014-05-14 | 2015-11-25 | 船井电机株式会社 | Printer |
-
2020
- 2020-12-08 CN CN202011421003.4A patent/CN112520475A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344101A (en) * | 2000-09-18 | 2002-04-10 | 旭丽股份有限公司 | Paper distribution guide for automatic paper feeder |
| CN1488511A (en) * | 2002-08-20 | 2004-04-14 | ���ǵ�����ʽ���� | Device for preventing double-paper feed in printer |
| CN101638011A (en) * | 2008-07-30 | 2010-02-03 | 精工爱普生株式会社 | Feeding device and recording device |
| CN101746621A (en) * | 2008-12-03 | 2010-06-23 | 株式会社理光 | Manual sheet feeder and image forming apparatus including same |
| CN103101780A (en) * | 2011-11-11 | 2013-05-15 | 京瓷办公信息系统株式会社 | Sheet feeding device and image forming apparatus |
| CN105082788A (en) * | 2014-05-14 | 2015-11-25 | 船井电机株式会社 | Printer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8899742B2 (en) | Image recording apparatus | |
| US7753358B2 (en) | Tabbed sheet support unit, sheet feeding device, and image forming apparatus | |
| US6042109A (en) | Sheet feeding device with compact media path for paper-based and photographic media | |
| JP5402491B2 (en) | Medium feeding device and recording device | |
| JP4930041B2 (en) | Paper feed mechanism and recording apparatus having the same | |
| JP4866300B2 (en) | Paper feeding device and electrophotographic device | |
| JP4764073B2 (en) | Sheet feeding apparatus and recording apparatus | |
| US7556255B2 (en) | Image processing apparatus | |
| US20040178571A1 (en) | Sheet feeder in image reading apparatus | |
| US7152859B2 (en) | Sheet separator | |
| JP2002321838A (en) | Paper feeding device and recording device provided with the same | |
| US10737892B2 (en) | Medium feeding device and image reading apparatus | |
| US20090236796A1 (en) | Edge regulating device, printing medium cassette, and printing apparatus | |
| KR100293739B1 (en) | Paper feeding device for printer | |
| CN112520475A (en) | Paper feeding mechanism and paper document processing equipment with same | |
| KR100748281B1 (en) | Image processing apparatus | |
| US5895039A (en) | Sheet-supply device | |
| US7862035B2 (en) | Sheet feed devices and image recording apparatus comprising such sheet feed devices | |
| US7481426B2 (en) | Medium feeder and liquid ejecting apparatus or recording apparatus incorporating the same | |
| JP5488794B2 (en) | Medium feeding device and recording device | |
| WO2004096682A1 (en) | Feeding device and recording device | |
| JP3583654B2 (en) | Paper feeder | |
| JP2002068503A (en) | Paper sheet feeding device, and recording device provided with same device | |
| JP5482649B2 (en) | Sheet feeding device | |
| JP3646397B2 (en) | Paper feeding device and printing device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |