CN101526793B - Duplex printing device - Google Patents
Duplex printing device Download PDFInfo
- Publication number
- CN101526793B CN101526793B CN2008100834741A CN200810083474A CN101526793B CN 101526793 B CN101526793 B CN 101526793B CN 2008100834741 A CN2008100834741 A CN 2008100834741A CN 200810083474 A CN200810083474 A CN 200810083474A CN 101526793 B CN101526793 B CN 101526793B
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- China
- Prior art keywords
- paper
- roller
- paper feed
- roller set
- order
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- 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.)
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- 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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/33—Modifying, selecting, changing orientation
- B65H2301/333—Inverting
- B65H2301/3331—Involving forward reverse transporting means
- B65H2301/33312—Involving forward reverse transporting means forward reverse rollers pairs
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- Delivering By Means Of Belts And Rollers (AREA)
Abstract
The invention relates to a duplex printing device, which comprises a paper feed tray, a paper delivery tray, a paper feed roller, a paper feed channel, a first paper feed roller train, a scanning, displaying and printing unit, a printing area, a paper delivery channel, a second paper feed roller train, a reverse channel, a paper guide plate, a third paper feed roller train and a paper delivery roller train. The duplex printing device is provided with the reverse channel between the printing area and the paper delivery tray to shorten the printing time.
Description
Technical field
The present invention relates to a kind of printing equipment, relate in particular to the printing equipment that can carry out duplex printing.
Background technology
In the office in modern times, printing equipment is indispensable instrument, and printing equipment comprises duplicating machine, printer, scanning machine and affairs machine etc., and wherein the most normal what be used is exactly printer.General printer only has the function that single face is printed, when the user needs duplex printing, first page of document in the computer printed on first of paper blank, after first page of printing of document finished, must will be printed on the paper turn-over of first page of image of document and put into the feeding box of printer, again in second second page of going up document printing of this paper, if the number of pages quantity of document is very big, the action that manual repeatedly turn-over like this is put paper brings sizable puzzlement to the user, therefore, but develop a kind of double-side impact printing device of duplex printing on the market.
See also Fig. 1, it is the inner structure synoptic diagram of existing double-side impact printing device.Existing double-side impact printing device 100 comprises feeding box 101, paper output box 102, pickup roller 106, paper feed channel 105, the first paper feed roller set 109, scanner uni video picture print unit 103, print zone 104, paper delivery path 10 7, heating roller 1038, roller 1039 bears down on one, backward channel 108, paper guiding sheet 113, the second paper feed roller set 110, the 3rd paper feed roller set 111, the 4th paper feed roller set 114 and paper delivery roller set 112, the scanner uni video picture print unit 103 that wherein is positioned at print zone 104 comprises laser scan unit 1031 (Laserscanning unit), photosensitive drums 1032 (Optical photoconductive drum), cloth electricity roller 1033 (Charging roller), video picture roller 1034 (Developer roller), carbon dust adds roller 1035 (Toneradding roller), transfer rolling wheel 1036 (Transferring roller) and scraper 1037 (blade).The paper (in figure indicate) of feeding box 101 in order to place blank, and paper output box 102 is printed the paper of finishing in order to place.Paper feed channel 105 is provided with the first paper feed roller set 109 in paper feed channel 105 between feeding box 101 and print zone 104.Paper delivery path 10 7 is between print zone 104 and paper output box 102, and be provided with heating roller 1038, bear down on one roller 1039 and paper delivery roller set 112 in paper delivery path 10 7, wherein paper delivery roller set 112 comprises paper delivery driving wheel 1121 and paper delivery follower 1122.And backward channel 108 is extended on the paper feed channel 105 by paper output box 102, as shown in Figure 1.And paper passes through backward channel 108 by the second paper feed roller set 110, the 3rd paper feed roller set 111 and the 4th paper feed roller set 114 that are positioned on the backward channel 108 with paper feeding, makes paper can enter print zone 104 once again again.
Next illustrate that existing double-side impact printing device 100 carries out the situation of duplex printing.The image that document is first page is read, and this first page of image data is sent to laser scan unit 1031.Then, cloth electricity roller 1033 is distributed on the photosensitive drums 1032 charged ion, and after the cloth electricity was finished, laser scan unit 1031 scanned first page of image data linearly on photosensitive drums 1032 with the form point of laser and makes first page of image data form electrostatic latent image (Electrostatic latent image).Then, carbon dust adds roller 1035 carbon dust is attached on the video picture roller 1034 by the powder box in the scanner uni video picture print unit 103 (not indicating among the figure), then video picture roller 1034 is projected to the part that is furnished with electrostatic latent image on the photosensitive drums 1032 with carbon dust attached to it, makes the part that has electrostatic latent image on the photosensitive drums 1032 be covered with carbon dust.After scanner uni video picture print unit 103 was finished above image processing program, paper was presented by feeding box 101 by pickup roller 106 and is entered paper feed channel 105, is fed to print zone 104 by the first paper feed roller set 109 again.When paper entered between the photosensitive drums 1032 of print zone 104 and the transfer rolling wheel 1036, paper was attracted to the surface of photosensitive drums 1032 and contacts with carbon dust.Again owing to having opposite electrical current potential on the transfer rolling wheel 1036 that is positioned at back side of paper with carbon dust, therefore the carbon dust on the photosensitive drums 1032 is adsorbed on first of paper, and after carbon dust was adsorbed to paper, scraper 1037 can scrape carbon dust remaining on the photosensitive drums 1032 and recycle.Then, the paper that adheres to carbon dust is fed and enters paper delivery path 10 7, and paper continues to be fed the heating roller 1038 that enters on the paper delivery path 10 7 and 1039 on the roller of bearing down on one, at this moment, heating roller 1038 and the roller 1039 that bears down on one utilize hot pressuring method that the carbon dust fusion is infiltrated in the fiber of paper and carbon dust can be fixed on the paper, that is to say that heating roller 1038 and the roller 1039 that bears down on one are for deciding unit (Fusing unit) in the laser print apparatus.So far, first page of image data of document printed and finished, and the paper that is printed on first page of image data is fed to the paper delivery roller set 112 that comprises paper delivery driving wheel 1121 and paper delivery follower 1122, and the paper guiding sheet 113 that wherein is positioned at paper delivery path 10 7 and backward channel 108 intersections is in the state of sealing backward channel 108.
Then proceed the printing of second page of image of document, when paper is between paper delivery driving wheel 1121 and paper delivery follower 1122, paper guiding sheet 113 switches to the state of sealing paper delivery path 10 7, at this moment, paper delivery driving wheel 1121 begins counter-rotating and jointly file is presented toward backward channel 108 with paper delivery follower 1122.When paper is mobile in backward channel 108, the second paper feed roller set, 110 paper feedings continue in the backward channel 108 it to advance, next the 3rd paper feed roller set 111 and the 4th paper feed roller set 114 that are reversed on the path 10 8 of paper is fed to paper feed channel 105, by the first paper feed roller set 109 paper feeding is entered print zone 104 again, second page of image data of document this moment has been read and has been transferred into laser scan unit 1031.Process and identical video picture and the print procedure of first page of image data of document, make second face of paper be attached with the carbon dust of second page of image data shape, and then paper enters paper delivery path 10 7 after by print zone 104, pressurizeed and in paper delivery path 10 7, have the heating roller 1038 of deciding Elementary Function and roller 1039 heat of bearing down on one once again, after the heat pressurization is finished, paper is fed to paper output box 102 to finish duplex printing by paper delivery roller set 112, and wherein paper guiding sheet 113 makes paper delivery path 10 7 be in unimpeded state.
Though existing double-side impact printing device can allow the user not need manually to carry out the work of paper turn-over, convenient more many than general printer on using, but existing double-side impact printing device must make paper get back to print zone once again via backward channel in the turn-over process of each duplex printing.The length that meeting increase double-side impact printing device is set of backward channel the volume of double-side impact printing device is increased, so the user needs bigger space place double-side impact printing device.In addition, longer because of the path of backward channel, make the time-write interval of second on paper longer, therefore reduced the speed of duplex printing.
Summary of the invention
The object of the present invention is to provide a kind of double-side impact printing device, a kind of double-side impact printing device that improves print speed especially is provided.
In a preferred embodiment, the present invention proposes a kind of double-side impact printing device, is used for image printing first and second in paper comprised: feeding box, in order to place paper; Paper output box is positioned at the feeding box top, in order to place the paper after printing; Scanner uni video picture print unit comprises a photosensitive drums and a laser scan unit, and is arranged at print zone, in order to read image and with image printing on paper; Paper feed channel is arranged between feeding box and the print zone, with so that paper enters print zone with image printing first in paper; Pickup roller is arranged at a side of feeding box, in order to paper is fed to paper feed channel by feeding box; The paper delivery passage is between print zone and paper output box, in order to paper is sent to paper output box; Backward channel, in the space between the zone by the print zone place and the zone at paper output box place, make this backward channel, this paper feed channel and this paper delivery passage one common peripheral around this photosensitive drums and this laser scan unit, this backward channel with so that paper is transferred into print zone once more with image printing second in paper; The first paper feed roller set is positioned at the intersection of paper feed channel and backward channel, enters print zone in order to paper feeding; The second paper feed roller set is arranged on the paper delivery passage, in order to paper feeding; The 3rd paper feed roller set is arranged on the backward channel, enters print zone in order to paper feeding; And the paper delivery roller set, with so that paper enter paper output box or enter backward channel.
In a preferred embodiment, scanner uni video picture print unit comprises that cloth electricity roller, video picture roller, transfer rolling wheel, carbon dust add roller and scraper.
In a preferred embodiment, the second paper feed roller set comprises the heating roller and the roller that bears down on one.
In a preferred embodiment, the paper delivery roller set comprises: the paper delivery driving wheel that can change sense of rotation; And paper delivery follower.
Useful technique effect of the present invention is, double-side impact printing device of the present invention can provide print speed faster and can shorten the time that user's wait is printed.In addition, because double-side impact printing device of the present invention has short backward channel, thus the minimizing of total roller number, fiduciary level that can this elevator wheel.
Description of drawings
Fig. 1 is the inner structure synoptic diagram of existing double-side impact printing device.
Fig. 2 is the inner structure synoptic diagram of double-side impact printing device one preferred embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100,200 double-side impact printing devices, 101,201 feeding box
102,202 paper output box, 103,203 scanner uni video picture print units
1031,2031 laser scan units, 1032,2032 photosensitive drums
1033,2033 cloth electricity roller, 1034,2034 video picture rollers
1035,2035 carbon dusts add roller 1036,2036 transfer rolling wheels
1037,2037 scrapers, 1038,2101 heating rollers
1039,2102 roller 104,204 print zones that bear down on one
105,205 paper feed channel, 106,206 pickup rollers
107,207 paper delivery path 10s, 8,208 backward channels
109,110,111,114,209,210,211 paper feed roller set
112,212 paper delivery roller set, 1121,2121 paper delivery driving wheels
1122,2122 paper delivery followers, 113,213 paper guiding sheets
Embodiment
See also Fig. 2, it is the inner structure synoptic diagram of double-side impact printing device one preferred embodiment of the present invention.Double-side impact printing device 200 of the present invention comprises feeding box 201, paper output box 202, pickup roller 206, paper feed channel 205, the first paper feed roller set 209, scanner uni video picture print unit 203, print zone 204, paper delivery passage 207, the second paper feed roller set 210, backward channel 208, paper guiding sheet 213, the 3rd paper feed roller set 211 and paper delivery roller set 212, wherein scanner uni video picture print unit 203 includes laser scan unit 2031, photosensitive drums 2032, cloth electricity roller 2033, video picture roller 2034, carbon dust adds roller 2035, transfer rolling wheel 2036 and scraper 2037.Feeding box 201 is in order to place blank paper, paper output box 202 is printed the paper of finishing and is positioned at feeding box 201 tops in order to place, and paper feed channel 205 is provided with the first paper feed roller set 209 in paper feed channel 205 between feeding box 201 and print zone 204.Paper delivery passage 207 and is provided with the second paper feed roller set 210 and paper delivery roller set 212 in paper delivery passage 207 between print zone 204 and paper output box 202, wherein paper delivery roller set 212 comprises paper delivery driving wheel 2121 and paper delivery follower 2122.
Double-side impact printing device 200 of the present invention is with the difference of existing double-side impact printing device 100, between backward channel 208 print zones 204 of double-side impact printing device 200 of the present invention and the paper output box 202 and backward channel 208 be provided with the 3rd paper feed roller set 211, as shown in Figure 2.In addition, the heating roller and the roller that bears down on one are not set in the double-side impact printing device 200 in addition, but the second paper feed roller set 210 that will be positioned on the paper delivery passage 207 adds the function that heat is pressurizeed, that is, the second paper feed roller set 210 comprises the heating roller 2101 and the roller 2102 that bears down on one.The inner structure of improvement according to the present invention, paper guiding sheet 213 is arranged at the intersection of paper delivery passage 207 and backward channel 208.
When double-side impact printing device 200 beginning duplex printings, first page of image of document read by computer, and this first page of image has been sent to scanner uni video picture print unit 203.And paper is fed to paper feed channel 205 by pickup roller 206 by feeding box 201, and when being fed to print zone 204 by the first paper feed roller set 209,203 pairs of paper of scanner uni video picture print unit print that (print procedure is same as the prior art, so repeat no more), make first face of paper be furnished with the carbon dust that forms first page of image pattern of document, then paper is fed and enters paper delivery passage 207 and be positioned at the second paper feed roller set, 210 heat pressurizations on the paper delivery passage 207, make the carbon dust melted by heating in the fiber of paper and carbon dust is fixed on the paper, and paper guiding sheet 213 sealing backward channels 208 make paper can go to paper output box 202, paper with paper delivery follower 2122 by paper delivery passage 207 sandwich by the paper delivery driving wheel 2121 of paper delivery roller set 212 again, and paper feeding leaves the intersection of paper delivery passage 207 and backward channel 208, thereby finishes to paper first of first page of image printing of document.
At this moment, paper is still being kept by the state of paper delivery roller set 212 clampings, then, paper guiding sheet 213 switches to the state of opening backward channel 208, and the paper delivery driving wheel 2121 in the paper delivery roller set 212 begins to change sense of rotation, paper is fed enter backward channel 208, again by the 3rd paper feed roller set 211 on the backward channel 208 with paper feeding to the first paper feed roller set 209 places, make the first paper feed roller set 209 with paper feeding to print zone 204.On the other hand, scanner uni video picture print unit 203 has received second page of image of document, prints when making paper enter print zone.After print procedure finishes, the paper continuation is presented by transfer rolling wheel 2036 and is entered paper delivery passage 207, the hot pressure process that 210 pairs of paper of the second paper feed roller set on the process paper delivery passage 207 carry out, carbon dust is fixed on the paper, at this moment, paper guiding sheet 213 has switched to the state of sealing backward channel 208, makes paper can go to paper output box 202, by paper delivery roller set 212 paper feeding is finished duplex printing to paper output box 202 at last.
From the above, the double-side impact printing device that the present invention proposes is provided with the backward channel in different paths in addition, backward channel of the present invention is positioned between print zone and paper output box, compare with the backward channel that prior art proposes, backward channel of the present invention path is shorter, therefore the time-write interval can be shortened, even can once print two pieces of paper and open, the i.e. image of four pages of document printing, be simply described as follows: see also Fig. 2 equally, first paper and second paper are arranged in feeding box 201, during the beginning duplex printing, first paper be fed to print zone 204 and with first page of image printing of document in the front of first paper, after finishing the front print of first paper, second paper be fed to print zone 204 and with the 3rd page of image printing of document in the front of second paper, in the time of the front print of second paper, first paper enters backward channel 208, and second paper leaves print zone 204 when going to paper delivery roller set 212 places, first paper enters print zone 204 once again, then with second page of image printing of document in the reverse side of first paper, simultaneously, second paper enters backward channel 208, print zone 204 is finished and left to first paper duplex printing, second paper and then enters print zone 204, and first paper has been fed to paper output box 202, then with the 4th page of image of document in the reverse side of second paper print finish after, second paper also is fed to paper output box 202, the duplex printing that two pieces of paper are opened is finished, and it is quicker than existing double-faced scanning device so to print flow process.Therefore, double-side impact printing device of the present invention can provide print speed faster really and can shorten the time that user's wait is printed.In addition, because double-side impact printing device of the present invention has short backward channel, thus the minimizing of total roller number, fiduciary level that can this elevator wheel.
The above is preferred embodiment of the present invention only, is not in order to limiting scope of the present invention, and therefore all other changes or modify not breaking away from the equivalence of being finished under the disclosed spirit, all should be contained in protection scope of the present invention.
Claims (4)
1. double-side impact printing device in order to image printing first and second in a paper, comprising:
One feeding box is in order to place this paper;
One paper output box is positioned at this feeding box top, in order to place this paper after printing;
One scan and video picture print unit comprise a photosensitive drums and a laser scan unit, and are arranged at a print zone, in order to read this image and with this image printing on this paper;
One paper feed channel is arranged between this feeding box and this print zone, with so that this paper enters this print zone with this image printing first in this paper;
One pickup roller is arranged at a side of this feeding box, in order to this paper is fed to this paper feed channel by this feeding box;
One paper delivery passage is between this print zone and this paper output box, in order to this paper is sent to this paper output box;
One backward channel, in the space between the zone by this print zone place and the zone at this paper output box place, make this backward channel, this paper feed channel and this paper delivery passage one common peripheral around this photosensitive drums and this laser scan unit, this backward channel with so that this paper is transferred into this print zone once more with image printing second in this paper;
One first paper feed roller set is positioned at the intersection of this paper feed channel and this backward channel, enters this print zone in order to paper feeding;
One second paper feed roller set is arranged on this paper delivery passage, in order to present this paper;
One the 3rd paper feed roller set is arranged on this backward channel, enters this print zone in order to present this paper; And
One paper delivery roller set, with so that this paper enter this paper output box or enter this backward channel.
2. double-side impact printing device as claimed in claim 1, wherein this scanner uni video picture print unit comprises that also cloth electricity roller, a video picture roller, a transfer rolling wheel, a carbon dust add a roller and a scraper.
3. double-side impact printing device as claimed in claim 1, wherein this second paper feed roller set comprises heating roller and a roller that bears down on one.
4. double-side impact printing device as claimed in claim 1, wherein this paper delivery roller set comprises:
One can change the paper delivery driving wheel of sense of rotation; And
One paper delivery follower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100834741A CN101526793B (en) | 2008-03-07 | 2008-03-07 | Duplex printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100834741A CN101526793B (en) | 2008-03-07 | 2008-03-07 | Duplex printing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526793A CN101526793A (en) | 2009-09-09 |
| CN101526793B true CN101526793B (en) | 2011-01-12 |
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ID=41094685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100834741A Expired - Fee Related CN101526793B (en) | 2008-03-07 | 2008-03-07 | Duplex printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526793B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024159B (en) * | 2009-09-11 | 2014-07-30 | 山东新北洋信息技术股份有限公司 | Equipment and method for processing recording medium with embedded information |
| CN113787838B (en) * | 2017-05-23 | 2023-04-11 | 李明信 | Printer for security paper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497396A (en) * | 2002-10-10 | 2004-05-19 | 夏普株式会社 | Two-sided image forming device |
| CN1603970A (en) * | 2003-09-29 | 2005-04-06 | 富士全錄株式会社 | Sheet transporting device and image forming apparatus and assembling method for image forming apparatus |
| CN1700107A (en) * | 2004-05-17 | 2005-11-23 | 三星电子株式会社 | Paper reverse-feeding apparatus for image forming apparatus |
| CN1851563A (en) * | 2005-04-22 | 2006-10-25 | 村田机械株式会社 | Image forming device |
| CN1991627A (en) * | 2005-12-26 | 2007-07-04 | 三星电子株式会社 | Duplex image forming apparatus and duplex image forming method |
-
2008
- 2008-03-07 CN CN2008100834741A patent/CN101526793B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497396A (en) * | 2002-10-10 | 2004-05-19 | 夏普株式会社 | Two-sided image forming device |
| CN1603970A (en) * | 2003-09-29 | 2005-04-06 | 富士全錄株式会社 | Sheet transporting device and image forming apparatus and assembling method for image forming apparatus |
| CN1700107A (en) * | 2004-05-17 | 2005-11-23 | 三星电子株式会社 | Paper reverse-feeding apparatus for image forming apparatus |
| CN1851563A (en) * | 2005-04-22 | 2006-10-25 | 村田机械株式会社 | Image forming device |
| CN1991627A (en) * | 2005-12-26 | 2007-07-04 | 三星电子株式会社 | Duplex image forming apparatus and duplex image forming method |
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| Publication number | Publication date |
|---|---|
| CN101526793A (en) | 2009-09-09 |
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