CN1809463A - Printer - Google Patents
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- CN1809463A CN1809463A CNA2004800171033A CN200480017103A CN1809463A CN 1809463 A CN1809463 A CN 1809463A CN A2004800171033 A CNA2004800171033 A CN A2004800171033A CN 200480017103 A CN200480017103 A CN 200480017103A CN 1809463 A CN1809463 A CN 1809463A
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- mentioned
- print media
- printing platen
- media thing
- printhead
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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
- 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
- B41J11/02—Platens
- B41J11/14—Platen-shift mechanisms; Driving gear therefor
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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
- 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
- B41J11/20—Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment, or for print gap adjustment
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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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
- B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
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- Handling Of Cut Paper (AREA)
Abstract
A printer has a platen which vertically moves with respect to a printing head to press a medium against a guide member from below. In this printer, the platen is attached to a support member through a spring member to be urged upward by the spring member, and the arrangement is such that when the thickness of the medium is more than a predetermined value, the platen is further urged upward by a spring force reinforcing mechanism, whereby the force with which the platen presses the medium can be suitably controlled according to the thickness of the medium, so that printing can be performed in a stabilized manner.
Description
Technical field
The invention relates to the invention of printer (printer).
Background technology
, waited in the financial institution in bank, post office, credit national treasury (the financial cooperation society of Japan) in the past, one to be to use with printers such as folding accounting machine deposit booklet etc. with folding on (for example can with reference to patent documentation 1) of record keeping.In order on assigned position, to print record keeping, in this printer, make from inserting mouthful to insert and be transported to printing portion with folding by being arranged on conveying roller on the feed track etc. with the folding accounting machine with folding as the print media thing.This printing portion is provided with printhead (print head), and the printing platen (platen) put and guiding relative with above-mentioned printhead across the feed track guide with the folding upper surface, and this guide is installed on the printhead.In case with folding to the printing portion that reaches, printing platen will rise, support with below the folding, will be with being pressed into guide above the folding.Like this, just be in the state that is directed to part and printing platen clamping, and kept the spacing of regulation between the top and printhead with folding with folding, thus just can be stably with printhead to having folded into line printing.
, be to insert with the folding accounting machine with folding with the state raised, and along with different its thickness of the number of pages of opening are also different.For example, when the homepage of raising with folding, be inserted into in the folding accounting machine time, along the first half of throughput direction, its thickness is just thin, and after folding line, also is that its thickness of latter half is with regard to thickening; And in being opened to last page with folding and inserting with the folding accounting machine time, along the first half thickness thickening of throughput direction, and after folding line, also be that latter half thickness is with regard to attenuation.Therefore, if printing platen fixing with the bearing height that is folded down face, just can not be corresponding with the variation of above-mentioned thickness.So printing platen is in the variation that will be designed to the bearing height that is folded down face to absorb with folding thickness.
Fig. 2 is the supporting construction schematic diagram of the printing platen in the past the printer.
Among the figure, the 101st, printing platen is supported among Fig. 2 not shown with below the folding; The 102nd, the printing platen support member, relying on not shown printing platen to move up and down device can be moved up and down; In case with folding to the printing portion that reaches, this support member 102 just is moved upward.And above-mentioned printing platen 101 is to be printed pressing plate support member 102 by the spring part of being made up of helical spring etc. 103 to be supported, so, in case with folding to the printing portion that reaches, printing platen support member 102 relies on printing platens to move up and down device when being moved upward, above-mentioned printing platen 101 just by the application of force upward, is pressed into below the folding under the elastic force effect of spring part 103.Like this, even variation has taken place,, just can sponge with the influence of folding varied in thickness by moving up and down of above-mentioned printing platen 101 with the thickness of folding.
Have, the height of above-mentioned printing platen 101 is in that go up with the width (promptly among the figure laterally) of folding must be consistent again, and also, the printing platen 101 among the figure must often keep levels.So, just utilize link mechanism to make above-mentioned printing platen 101 often keep level.
Here said link mechanism disposes two turning arms 104 and connects the link arm 108 of each turning arm 104.In addition, the top of printing platen support member 102 also is equipped with two pillars 109, and above-mentioned turning arm 104 is installed in respectively on the pillar 109 by rotating shaft 105, can rotate.Above-mentioned rotating shaft 105 is located substantially on the central authorities of turning arm 104, and the upper end of this turning arm 104 is installed in respectively on the printing platen 101 by rotating shaft 106, can rotate; And the lower end of turning arm 104 is installed in respectively on the link arm 108 by rotating shaft 107, can rotate.Like this, above-mentioned printing platen 101 just can be when often keeping level, and printing platen support member 102 moves up and down relatively.
(patent documentation 1: No. 2786060 communique of Japan Patent)
Yet in above-mentioned printer in the past, when the insertion document printed, it is uneven that deflection has but taken place, the situation that can not suitably print.In general, with the print media thing in the printers such as folding accounting machine, except with rolling over, also having comprised document.So-called document is exactly the print media thing of being made up of a piece of paper etc., is kind to be used as the transaction detailed catalogue that the client that fills in the financial transaction detailed account uses, or is used as the print media thing of financial institution's interior business bill.Above-mentioned with the folding accounting machine in, when the print media thing is document, also want the same with folding the time, in order to print record keeping at the assigned position place, when arriving printing portion from inserting a mouthful document one that inserts with the folding accounting machine, printing platen 101 to rise and support document below, guide will be pressed into above the document, like this, document is in the state that is directed to part and printing platen 101 clampings, owing to kept the spacing of regulation between the upper surface of document and the printhead, so just can stably utilize printhead that document has been printed.
, under the print media thing is situation with folding, when the printing of certain delegation finishes to divide a word with a hyphen at the end of a line, allow printhead move to position with the lateral outer side of folding.In case and printhead moves to the position of lateral outer side with folding, then printing platen support member 102 moves up and down at printing platen under the effect of device and is just moved downwards, so printing platen 101 also will descend.Like this, just can not be directed to part and printing platen 101 clampings with folding, and can utilize roller to carry.Therefore, even change, also can carry the distance of delegation rightly, so the situation bad or that deflection is uneven of can not dividing a word with a hyphen at the end of a line with the thickness of folding.
Relative therewith, be under the situation of document at the print media thing, owing to there is not the variation of thickness, so when the printing of certain delegation finishes to divide a word with a hyphen at the end of a line, just need not allow printhead move on on the position with the lateral outer side of rolling over.At this moment, the position the when printing that just allows printhead stop at certain delegation finishes utilizes roller to carry document to divide a word with a hyphen at the end of a line.Therefore, can shorten the required time of dividing a word with a hyphen at the end of a line, can improve the operating efficiency of printer., the uneven situation of deflection but can take place when dividing a word with a hyphen at the end of a line.
Fig. 3 is the schematic diagram that imposes on the document active force in conventional printer.
Among Fig. 3, the 111st, document is by the first road conveying roller 112a and the second road conveying roller 112b and the first road backer roll 113a and the second road backer roll 113b clamping with carry.In addition, the 114th, printhead is equipped with guide 115.
When above-mentioned document 111 is printed, when the printing of certain delegation finishes to divide a word with a hyphen at the end of a line, just the printing end at this row allows printhead 114 quit work, rely on the first road conveying roller 112a and the second road conveying roller 112b and the first road backer roll 113a and the second road backer roll 113b to carry document 111 to divide a word with a hyphen at the end of a line.At this moment, F
1And F
2Power act on the above-mentioned document 111 by the first road conveying roller 112a and the second road conveying roller 112b and the first road backer roll 113a and the second road backer roll 113b.In addition, owing to printhead 114 need not be moved on the position of lateral outer side of document 111,, and use F so printing platen 101 just need not descend
3Active force with the upper surface of document 111 by being pressed on the guide 115.Therefore, because the friction that is produced between the upper surface of document 111 and the guide 115, be applied in the active force of Fp on the above-mentioned document 111, and, the direction of the active force of Fp and F
1And F
2Direction opposite.
Here, the first road conveying roller 112a and the second road conveying roller 112b and the first road backer roll 113a and the second road backer roll 113b are arranged on document 111 transversely equably, so F
1And F
2Active force work with regard to can be regarded as along the center line on the width of document 111.On the other hand, guide 115 is mounted on the printhead 114, so the active force of Fp just can be regarded as the position that acts on document 111 printhead 114 transversely.Therefore, in the time of dividing a word with a hyphen at the end of a line, if the center line transversely of document 111 has been departed from the position that printhead 114 stops, then under the effect of power Fp, will produce torque force on the document 111, and, the words that this torque force one is big, document 111 will rotate, thereby tilts, and the uneven situation of deflection takes place.
But, if reduce printing platen 101 with the upper surface of document 111 by the power F that is pressed on the guide 115
3, the power of Fp also can reduce, thus torque force also can diminish, so just can prevent the uneven situation of deflection.And, in general, because the thin thickness of document 111, so, even reduced F
3Active force, the printing of printhead 114 also can be stablized., in the time of on folding, printing, since thicker with folding thickness, as reduced F
3Power, printing will be unstable.Therefore, just can not reduce F
3Active force.
Summary of the invention
Purpose of the present invention just is, provides a kind of and can solve the existing problem of above-mentioned printer in the past, by simple structure, can suitably control the printer that printing platen is pushed the active force of print media thing according to the thickness of print media thing.No matter the print media thing is with folding or document, this printer all can stably print, and can prevent the uneven generation of deflection of print media thing reliably.
Therefore, be provided with printhead in the printer of the present invention, this printhead to the mutually perpendicular direction of print media thing throughput direction on move, and on above-mentioned print media thing, print; This printer also is provided with guide, and this guide moves with printhead, contacts with the upper surface of above-mentioned print media thing, thereby has guaranteed spacing between above-mentioned printhead and the print media thing; This printer be provided with also that above-mentioned relatively printhead can move up and down and from the below with above-mentioned print media thing by the printing platen that is pressed on the above-mentioned guide.This printing platen is installed on the support member by spring part, above relying under the effect of the above-mentioned spring part application of force, when the thickness of above-mentioned print media thing surpasses setting, rely on elastic force strengthen mechanism can be further the application of force upward.
Another characteristics of printer of the present invention are, above-mentioned elastic force strengthens mechanism and disposes secondary spring spare, in case above-mentioned printing platen is printed medium when pressing down to such an extent that surpass setting, the elastic force of above-mentioned secondary spring spare will be applied in to above-mentioned printing platen.
The another characteristics of printer of the present invention are, above-mentioned printing platen has been kept level by link mechanism, and the elastic force of above-mentioned secondary spring spare is applied on the above-mentioned printing platen by this link mechanism.
Characteristics again of printer of the present invention are, above-mentioned link mechanism is equipped with the link arm that is installed in the several turning arms on the above-mentioned printing platen and connects this turning arm, above-mentioned elastic force strengthens mechanism and produce additional force under the effect of above-mentioned secondary spring spare, and this elastic force strengthens mechanism and disposes and can and limit the stop (limiter) that this link arm actuating arm moves usefulness with the link arm actuating arm of above-mentioned link arm interoperation.
The another one characteristics of printer of the present invention are, in case above-mentioned printing platen is printed medium when pressing down to such an extent that surpass setting, above-mentioned link arm and link arm actuating arm will interoperations, this link arm actuating arm moves, and the elastic force of above-mentioned secondary spring spare is applied in to above-mentioned printing platen by above-mentioned link arm and turning arm.
Description of drawings
Fig. 1 is the supporting construction schematic diagram of printing platen in the embodiment of the invention, and the A that is Fig. 6 is to view.
Fig. 2 is the supporting construction schematic diagram of printing platen in the past the printer.
Fig. 3 is the schematic diagram that applies power in the past the printer on document.
Fig. 4 is the sketch of the printer in the embodiment of the invention.
Fig. 5 is the 1st figure of printing platen action in the embodiment of the invention.
Fig. 6 is the 2nd figure of printing platen action in the embodiment of the invention.
Fig. 7 is the 1st figure that the elastic force of printing platen in the embodiment of the invention strengthens mechanism action.
Fig. 8 is the 2nd figure that the elastic force of printing platen in the embodiment of the invention strengthens mechanism action.
The specific embodiment
Below, with regard to embodiments of the invention, at length describe with reference to accompanying drawing.
Fig. 4 is the sketch of the printer in the embodiment of the invention.
Among the figure, the 10th, printer is provided with: the print media thing that inserts print media thing 18 inserts mouthfuls 11, carries the print media thing feed track 12 of print media thing 18, along several conveying rollers 13 and the backer roll 14 of these print media thing feed track 12 configurations, be configured in printhead 15 in the above-mentioned print media thing feed track 12 printing portion 20 midway, be installed in the guide 16 on the balladeur train (carriage) (not shown) of this printhead 15 and be configured in printing platen 17 in the printing portion 20.Here, above-mentioned printer 10 is to wait in the financial institution in bank, post office, credit national treasury (the financial cooperation society of Japan), use when using with account keeping way such as folding records keeping grade with rolling over accounting machine etc.Above-mentioned printer 10 can constitute separately as using with the folding accounting machine, ATM), (Cash Dispenser: the part of the device the automatic trading apparatus constitutes CD, is used the cash cash dispenser) etc. also can be used as and resemble ATM (Automatic Teller Machine:.
In embodiments of the present invention, print media thing 18 is objects that printer 10 is printed.The kind of print media thing 18 have money on deposit booklet etc. with folding and the client that is used as record financial transaction detailed account with the transaction schedule or be used for bill that financial institution's interior business uses or for maintaining used document such as printer 10.At this, will be called with folding by the print media thing 18 that plurality of sheets of paper etc. is overlapped into the book shape, and the print media thing 18 of compositions such as a piece of paper is called document.In addition, usually, the closed size document of such size when closed is arranged again in the document with folding and when opening with folding such size open the size document.
Above-mentioned conveying roller 13 is when being provided with, its outer edge is outstanding in print media thing feed track 12 from the upward formed hole of the last side guide piece 12a portion of print media thing feed track 12, when the conveying of not shown stepping motor etc. with drive source during by transmission of drive force such as gear, band tooth conveyer belts, conveying roller 13 just is rotated.Above-mentioned backer roll 14 is when being provided with, and its peripheral part is outstanding in print media thing feed track 12 from the upward formed hole of the following side guide piece 12b portion of print media thing feed track 12, is pressed against on the above-mentioned conveying roller 13.And above-mentioned print media thing 18 be transferred roller 13 and backer roll about in the of 14 clamping and carry.In this case, above-mentioned conveying roller 13, its concentricity, appearance and size etc. must be through the control of strictness and produced.For example, be controlled to and come stepping ground to carry print media thing 18 with per step conveying capacity of 1/180 inch, and the surface of conveying roller 13 to be made with high friction material at least, can apply frictional force printing medium 18.
Above-mentioned printhead 15 has recording modes such as adopting ink jet type, thermal, wire dot system (wire dot), heat transfer type, but no matter is which kind of recording mode is all passable.Printer 10 in the embodiment of the invention, its printhead 15 is to mobile with the mutually perpendicular direction of throughput direction (i.e. left and right directions among the figure) (promptly vertical with picture in picture paper direction) of print media thing 18, also promptly, be the serial type printer that on above-mentioned print media thing 18, prints by scanning.In this case, above-mentioned printhead 15 carries on not shown balladeur train, and this balladeur train is installed on the axis of guide (guide shaft) that is not illustrated, and can slide, and the above-mentioned axis of guide is fixed on the frame of printer 10.In case print media thing 18 is put at the assigned position place, above-mentioned balladeur train just moves to the scanning direction along print media thing 18, and printhead 15 just prints on above-mentioned print media thing 18.Like this, finish if the delegation word is printed, conveying roller 13 and backer roll 14 just with above-mentioned print media thing 18 in accordance with regulations distance carry, be fixed on assigned position and divide a word with a hyphen at the end of a line afterwards.Then, above-mentioned balladeur train moves to the scanning direction along print media thing 18 again, and printhead 15 prints on above-mentioned print media thing 18 again.Just so repeat same action later on, on above-mentioned print media thing 18, print the word of regulation line number.
And the printer 10 in the embodiment of the invention is designed to and can prints on folding or the different print media thing 18 of the such thickness of document.Especially when print media thing 18 be with folding time, tend to because the number of pages difference of opening and thickness difference or local thickness change.For example, when inserting in the accounting machine on the homepage ground that is opened with folding, at the first half of throughput direction, its thickness is just thin, and after folding line, the thickness that also is latter half is with regard to thickening; Then, just thick at the thickness of the first half of throughput direction when the last page that is opened with folding inserts in the accounting machine, and also be that the thickness of latter half is with regard to attenuation after folding line.
Therefore, printhead 15 when move the scanning direction, needs keep certain spacing between above-mentioned printhead 15 and the print media thing 18 along print media thing 18.For this reason, printer of the present invention has just been installed the guide 16 of the upper surface of guiding print media thing 18 on above-mentioned balladeur train, and this guide 16 also can be installed on the printhead 15, and above-mentioned guide 16 is wished can be through the front and back of printhead 15.Have again, when above-mentioned printhead 15 adopts the mode of wire dot system printing, wish that guide 16 has the function that does not allow colour band contact with print media thing 18.
In addition, in order to limit the position at above-mentioned print media thing 18 back sides, printing platen 17 will relatively be provided with printhead 15.Above-mentioned printing platen 17 utilizes the printing platen that is not illustrated to move up and down the relative printhead 15 of device and can move up and down, when print media thing 18 1 arrives printing portions 20, just be moved upward, from the below with print media thing 18 by being pressed on the guide 16.Like this, by print media thing 18 being clipped between printing platen 17 and the guide 16, just the interval with above-mentioned printhead 15 and print media thing 18 is held in the predetermined distance that is suitable for printing.
Also promptly, above-mentioned printer 10 is a benchmark with the position of printhead 15 or guide 16, for the spacing with above-mentioned printhead 15 and print media thing 18 is held in the predetermined distance that is suitable for printing, printing platen 17 is moved, the position of restriction print media thing 18.Because above-mentioned printhead 15 is retained the predetermined distance that is suitable for printing with the spacing of print media thing 18, print so just can stably print medium 18 by 15 pairs of printheads.
Do an explanation with regard to the action of above-mentioned printing platen 17 below.
Fig. 5 is the 1st figure of printing platen action in the expression embodiment of the invention; Fig. 6 is the 2nd figure of printing platen action in the expression embodiment of the invention.
At first, in case print media thing 18 is inserted into the print media thing and inserts mouth 11, carry and just be passed to conveying roller 13 with drive source drives power, this conveying roller 13 just is rotated, and above-mentioned print media thing 18, as shown in Figure 5, be transferred roller 13 and backer roll about in the of 14 clamping along print media thing feed track 12 and passed to printing portion 20.
At this moment, printhead 15 is positioned at the horizontal outside of print media thing 18, and be in the position of waiting for the print media thing, and printing platen moves up and down device and printhead 15 interlock work, when this printhead 15 is in the position of lateral outer side of print media thing 18, printing platen 17 is moved downwards, also, printing platen 17 is descended.Thereby as shown in Figure 5, distance becomes big between printing platen 17 and the guide 16, and print media thing 18 just can waltz through.
In case and print media thing 18 has arrived assigned position, conveying roller 13 just stops operating, and like this, print media thing 18 just is fixed in the position of throughput direction.Then, above-mentioned balladeur train along print media thing 18 to this print media thing 18 laterally, also, move to the scanning direction, printhead 15 just arrives the print position on the above-mentioned print media thing 18.In case printhead 15 has moved on on the above-mentioned print media thing 18, printing platen move up and down device just with printhead 15 interlocks, printing platen 17 is moved upward, also, this printing platen 17 is risen.Thereby as shown in Figure 6, print media thing 18 is sandwiched between printing platen 17 and the guide 16, and above-mentioned printhead 15 just is retained the predetermined distance that is suitable for printing with the spacing of print media thing 18.
Have, above-mentioned printing platen 17 as following will talking about, is lived by spring part 22 is supported again, and therefore, above-mentioned printing platen 17 can be pushed to the top by the elastic force of spring part 22, push print media thing 18 below.And by print media thing 18 being clamped between the printing platen 17 and guide 16 that is upwards being pushed by spring part 22, just the spacing with above-mentioned printhead 15 and print media thing 18 is held in the predetermined distance that is suitable for printing.Like this, even variation has taken place the thickness of print media thing 18,, just can absorb the influence of the varied in thickness of print media thing 18 by moving up and down of above-mentioned printing platen 17.
Supporting construction with regard to above-mentioned printing platen 17 describes below.
Fig. 1 is the schematic diagram of the printing platen supporting construction in the embodiment of the invention, and the A that is Fig. 6 is to view.
Among Fig. 1, the 21st, the printing platen support member relies on the printing platen that is not illustrated to move up and down device and moves up and down, in case print media thing 18 arrives printing portion 20, when printhead 15 moves on the above-mentioned print media thing 18, will rise.And being used as the printing platen support member 21 of support member, support the spring part 22 of above-mentioned printing platen 17 by compositions such as helical springs.At this moment, spring part 22, under the compressed state of above-below direction, the application of force on the direction that above-mentioned printing platen 17 is pulled away from from printing platen support member 21.Therefore,, printing platen support member 21 moves up and down device when upwards rising, above above-mentioned printing platen 17 will rely on, push below the print media thing 18 under the elastic force effect of spring part 22 in case being printed pressing plate.Like this, even the thickness of print media thing 18 changes, by the influence that just can absorb the varied in thickness of print media thing 18 that moves up and down of above-mentioned printing platen 17.
Have, the height of above-mentioned printing platen 17 needs unanimity on horizontal (being the horizontal of Fig. 1) with folding, also be that printing platen 17 needs often to keep level among Fig. 1, so above-mentioned printing platen 17 has adopted link mechanism often to keep its level again.
This link mechanism disposes two turning arms 23 and connects the link arm 24 of each turning arm 23.In addition, the top turning arm support member that is not illustrated of having installed of printing platen support member 21.Above-mentioned turning arm 23 relies on rotating shaft 25 to be installed in respectively on the above-mentioned turning arm support member, can rotate.In addition, above-mentioned rotating shaft 25 is located substantially on the central authorities of turning arm 23.The upper end of turning arm 23 relies on rotating shaft 26 to be installed in respectively on the printing platen 17, can rotate; And the lower end of turning arm 23 relies on rotating shaft 27 to be installed in respectively on the link arm 24, can rotate.Like this, above-mentioned printing platen 17 just can move up and down by relative printing platen support member 21 when often keeping level.
And then when the thickness of print media thing 18 had surpassed setting, above-mentioned printing platen 17 relies on elastic force to strengthen mechanisms can further rely on the top, by be pressed in above-mentioned print media thing 18 below.
Above-mentioned elastic force strengthens mechanism and disposes: be installed in link arms below the link arm 24 drive with prodger 28, can with this link arm drive with prodger 28 do interoperation link arm actuating arm 32, to this link arm actuating arm 32 play application of force effect the secondary spring spare of forming by helical spring etc. 33, reach and limit the stop 35 that above-mentioned link arm actuating arm 32 moves.And the end that pillar 31, above-mentioned secondary spring spare 33 are installed on printing platen support member 21 just is installed on this pillar 31, and the other end of secondary spring spare 33 then is installed in the end of pillar 31 sides of link arm actuating arm 32.
At this moment, secondary spring spare 33 be in by about the state that stretches, to above-mentioned link arm actuating arm 32 application of force on the direction that pulls to pillar 31.In addition, be provided with the first stop counterpart 34a and the second stop counterpart 34b with the end of the pillar 31 opposite sides of link arm actuating arm 32.The first stop counterpart 34a and stop 35 are collided and are connect, link arm actuating arm 32 just can not surpass position shown in Figure 1 and move to the direction of pillar 31, and link arm actuating arm 32 to pillar 31 rightabouts on move the restriction that also has been subjected to the second stop counterpart 34b.Also promptly, link arm actuating arm 32 is being can make axially (Fig. 1 laterally) in the scope of limit to move with the collide position that connects of stop 35 respectively with the first stop counterpart 34a and the second stop counterpart 34b.
In addition, offer the embedding slotted hole 32a that extends vertically on the link arm actuating arm 32, link arm drives and is embedded in this embedding slotted hole 32a with prodger 28.At this moment, because embedded hole 32a carries over axial slotted hole,, link arm in the scope of this embedding slotted hole 32a, just can on link arm actuating arm 32 axial, move freely so driving with prodger 28.Therefore, when the scope that moves up and down at above-mentioned printing platen 17 relative printing platen support members 21 is narrower since link arm 24 link arm actuating arm 32 axially on can move freely, so it is just inoperative that elastic force strengthens mechanism.And if the decline of above-mentioned printing platen 17 relative printing platen support members 21 has surpassed the scope of regulation, then link arm drives the sidewall that will meet embedded hole 32a with prodger 28, so link arm actuating arm 32 will move to the direction opposite with pillar 31.Like this, secondary spring spare 33 just works, to printing platen 17 application of forces, this printing platen 17 above relying under the stronger elastic force effect, push above-mentioned print media thing 18 below.
In the embodiments of the invention, set the elastic force of spring part 22 less, printing platen 17 also just reduces by being pressed in print media thing 18 following active forces above relying under the elastic force effect of above-mentioned spring part 22.Also promptly, reduce the directed force F shown in Fig. 3
3Even the print media thing is a document will divide a word with a hyphen at the end of a line the time, also can reduce the torque force that the Fp active force is produced on print media thing 18, situation that deflection is uneven just can not take place.
And under print media thing 18 was situation with folding, because the thickness of print media thing 18 is thicker, so the decline of printing platen 17 relative printing platen support members 21 surpasses prescribed limit, the link arm driving will be run into the sidewall of embedded hole 32a with prodger 28.Therefore, when print media thing 18 is that the elastic force of secondary spring spare 33 just plays printing platen 17 effect of the application of force upward that makes with when folding, above-mentioned printing platen 17 above relying under the stronger elastic force effect, directed force F shown in Figure 3
3Will become big, like this, to thickness thicker print with the such print media thing 18 of folding the time, can not produce the unsettled situation of printing yet.In addition, because can not taking place, print media thing 18 do not float, takes place so-called " empty beating " phenomenon from printing platen 17, so also just can not resemble the empty noise of beating the sound of printing and coming of following, and, can not produce with the paper bending of compromise or the situation of printing character-spacing deviation yet.
Below, the action that strengthens mechanism with regard to the elastic force of above-mentioned printing platen 17 describes.
Fig. 7 is the 1st figure that the elastic force of printing platen in the expression embodiment of the invention strengthens mechanism action; Fig. 8 is the 2nd figure that the elastic force of printing platen in the expression embodiment of the invention strengthens mechanism action.
At first, at the state that does not have print media thing 18, also be under the A-stage, the supporting construction state of printing platen just as shown in Figure 7.At this moment, above printing platen 17 relies under the elastic force effect of spring part 22, push below the guide 16.Under this state, the elastic force of each spring part 22 also is pushing force F
4, such as be 200gf.
In addition, drive with the interval a of prodger 28 with the end wall of the embedded hole 32a of the opposite side of pillar of link arm actuating arm 32 and link arm such as be 0.3mm.When the inclination angle of turning arm 23 is about 45 °, when the distance of rotating shaft 25 to the distance of rotating shaft 26 and rotating shaft 25 to rotating shaft 27 equated, the amount of movement of printing platen 17 above-below directions equated substantially with the amount of movement that link arm drives with prodger 28 left and right directions.Thereby, when above-mentioned interval a is 0.3mm, if the thickness of print media thing 18 less than 0.3mm, elastic force strengthens mechanism and just can not work.And common document, because its thickness is about 0.1mm, so elastic force enhancing mechanism is just inoperative when print media thing 18 is document, printing platen 17 is just at the elastic force F of each spring part 22
4Effect under be pressed into print media thing 18 below.In addition, because spring part 22 has two, so when print media thing 18 was document, printing platen 17 will be by the application of force F of 2 * 200gf=400gf
4By be pressed in print media thing 18 below.
Then, when print media thing 18 be thickness thicker with when folding, the supporting construction state of printing platen 17 is just as shown in Figure 8.At this moment, printing platen 17 be pressed against print media thing 18 below.Common with folding, the thickness of the strip of paper used for sealing that it is positive and the strip of paper used for sealing of reverse side is about 0.3mm, therefore, even only raise with folding under the state of homepage insertion printer 10, its thickness along the first half of throughput direction also can surpass 0.3mm, also promptly, when print media thing 18 be that the thickness b of print media thing 18 can be more than 0.3mm with when folding.
Like this, link arm 24 can move to the direction shown in the arrow B, because the inclination angle of turning arm 23 is about 45 °, the distance of rotating shaft 25 to the distance of rotating shaft 26 and rotating shaft 25 to rotating shaft 27 is considered and equates, so its amount of movement just equates with the thickness b of above-mentioned print media thing 18, more than the also promptly mobile 0.3mm.Thereby the link arm driving can be collided with the sidewall of embedded hole 32a with prodger 28 and be connect, so link arm actuating arm 32 will move to the direction shown in the arrow B.Like this, the elastic force of secondary spring spare 33 is just executed to link arm 24, and also, link arm 24 can be to attached the leaning on of direction (rightabout of direction shown in the arrow B) of pillar 31 under the elastic force effect of secondary spring spare 33.At this, the application of force F of secondary spring spare 33
5Such as be 200gf.
The application of force on pillar 31 directions of passing to link arm 24 can be converted to the application of force upward under the link mechanism effect, pass to printing platen 17.Because the inclination angle of turning arm 23 is about 45 °, rotating shaft 25 to the distance of rotating shaft 26 equates with the distance of rotating shaft 25 to rotating shaft 27, so, the application of force up of passing to printing platen 17 equals to pass to the application of force of link arm 24, like this, strengthen under mechanism's effect at elastic force, will execute the power F of secondary spring spare 33 on the printing platen 17
5
The elastic force F that each spring part 22 is arranged respectively on printing platen 17 after all,
4, therefore, when print media thing 18 is that printing platen 17 will be subjected to the pushing force of 2 * 200gf+200gf=600gf with when folding, to print medium 18 below push.
In addition, rely on link mechanism, printing platen 17 1 is pressed down, will be to moving with the mutually perpendicular direction of the throughput direction of print media thing 18 (be shown in Figure 8 right-hand).At this moment, because the inclination angle of turning arm 23 is about 45 °, rotating shaft 25 to the distance of rotating shaft 26 equates with the distance of rotating shaft 25 to rotating shaft 27, so to equating with above-mentioned thickness b with distance that the mutually perpendicular direction of the throughput direction of print media thing 18 moves.Thus, because the print media thing 18 on the printing platen 17 also can move along with the direction vertical with throughput direction, if just keep like this, then deviation will take place in the print position of printhead 15.So in the present embodiment, just on above-mentioned balladeur train, sensor has been installed, so that detect the side position of print media thing 18.In case the side that this sensor detects above-mentioned print media thing 18 after the direction vertical with throughput direction moves, the corresponding therewith print position that will revise printhead 15.In addition, can collide when connecing such guide with the side (being right-hand end shown in Figure 8) of above-mentioned print media thing 18 when being provided with, even printing platen 17 moves, print media thing 18 can not move yet, the print position of printhead 15 can not be offset yet, so just the sensor need not be installed.
Like this, in the present embodiment, in the supporting construction that supports printing platen 17, assemble elastic force and strengthened mechanism, it is inoperative when the thinner thickness of print media thing 18 that this elastic force strengthens mechanism, then can work when the thickness of print media thing 18 has surpassed setting, the elastic force of secondary spring spare 33 can be to printing platen 17 application of force upward.In addition, with this printing platen 17 upward the elastic force of the spring part 22 of the application of force set lessly.
Like this, when print media thing 18 is the document that approaches, because 17 pairs of power that push below of printing medium 18 of printing platen are less, so the uneven situation of deflection can not take place yet even divide a word with a hyphen at the end of a line.
And when print media thing 18 be thicker during with folding because the active forces that printing platen 17 is pressed against below the print media thing 18 can increase, so also can not print unsettled situation.And, do not float, take place so-called " empty beating " phenomenon owing to can not produce print media thing 18 from printing platen 17, so the noise of printing and coming of following as sky is beaten sound can not take place yet.The situation of character-spacing deviation can not take place to bend or print with the compromise paper in addition, yet.
Have, above-mentioned elastic force strengthens mechanism again, because it is simple in structure, the cost of printer 10 can not increase yet.
In addition, the present invention also not only is confined to the foregoing description, can aim according to the present invention make all evolution scheme, these evolution scheme should not got rid of outside scope of the present invention.
As top illustrated, according to the present invention, can utilize simple structure, thickness according to the print media thing is controlled the active force that printing platen is pushed the print media thing rightly, so, no matter the print media thing is with folding or document, all can stably prints, and can prevent reliably that the deflection of print media thing is uneven.
Claims (5)
1. printer, this printer setup has:
To the printhead that moves and on above-mentioned print media thing, print with the mutually perpendicular direction of the throughput direction of print media thing;
Thereby move, contact the guide that has kept the interval between above-mentioned printhead and the print media thing with the upper surface of above-mentioned print media thing with this printhead;
Above-mentioned relatively printhead can move up and down, from the below with above-mentioned print media thing by the printing platen that is pressed on the above-mentioned guide,
It is characterized in that,
Above-mentioned printing platen is installed on the support member by spring part, and under the effect of above-mentioned spring part the application of force upward, when the thickness of above-mentioned print media thing surpasses setting, can rely on elastic force to strengthen the further application of force upward of mechanism.
2. printer according to claim 1, it is characterized in that, above-mentioned elastic force strengthens mechanism and disposes secondary spring spare, in case above-mentioned printing platen is printed medium when pressing down to such an extent that surpass setting, the elastic force of above-mentioned secondary spring spare will be applied in to above-mentioned printing platen.
3. printer according to claim 2 is characterized in that above-mentioned printing platen is kept level by link mechanism, and the elastic force of above-mentioned secondary spring spare just imposes on above-mentioned printing platen by this link mechanism.
4. printer according to claim 3 is characterized in that:
Above-mentioned link mechanism is equipped with the several turning arms that are installed on the above-mentioned printing platen, also disposes the link arm that connects this turning arm;
Above-mentioned elastic force strengthens mechanism and relies on above-mentioned secondary spring spare to produce additional force, and is equipped with and can and limits the stop that moves of this link arm actuating arm with the link arm actuating arm of above-mentioned link arm interoperation.
5. printer according to claim 4, in case above-mentioned printing platen is printed medium when pressing down to such an extent that surpass setting, above-mentioned link arm and link arm actuating arm are with regard to interoperation, this link arm actuating arm moves, and the elastic force of above-mentioned secondary spring spare just imposes on above-mentioned printing platen by above-mentioned link arm and turning arm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200243/2003 | 2003-07-23 | ||
| JP2003200243A JP4321151B2 (en) | 2003-07-23 | 2003-07-23 | Printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1809463A true CN1809463A (en) | 2006-07-26 |
| CN100382975C CN100382975C (en) | 2008-04-23 |
Family
ID=34100430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800171033A Expired - Fee Related CN100382975C (en) | 2003-07-23 | 2004-06-15 | Printer |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4321151B2 (en) |
| KR (1) | KR100896023B1 (en) |
| CN (1) | CN100382975C (en) |
| TW (1) | TWI295630B (en) |
| WO (1) | WO2005009739A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582285A (en) * | 2012-03-02 | 2012-07-18 | 珠海天威飞马打印耗材有限公司 | Tablet printer |
| CN103106758A (en) * | 2011-11-11 | 2013-05-15 | 山东新北洋信息技术股份有限公司 | Paper pressing plate component and paper pressing mechanism and slice type medium processing device |
| CN103317864A (en) * | 2012-03-23 | 2013-09-25 | 冲电气工业株式会社 | Printing device |
| CN103338937A (en) * | 2010-11-01 | 2013-10-02 | 斯科迪克斯有限公司 | System and method for transporting substrates |
| CN106864047A (en) * | 2017-03-03 | 2017-06-20 | 上海威侃电子材料有限公司 | Printhead and the automatic adjusting mechanism in rubber roll gap |
| CN109345640A (en) * | 2018-10-31 | 2019-02-15 | 广州广电运通金融电子股份有限公司 | A kind of magnetic medium processing unit and Automatic fare collection equipment |
| CN112009112A (en) * | 2020-09-15 | 2020-12-01 | 福建实达电脑设备有限公司 | Self-adaptive printing plate mechanism suitable for stylus printer and implementation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5330284B2 (en) * | 2010-01-28 | 2013-10-30 | 富士通フロンテック株式会社 | Printing device |
| JP7404642B2 (en) * | 2019-04-05 | 2023-12-26 | 沖電気工業株式会社 | Printing device and automatic transaction device using the printing device |
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| JPS5675885A (en) * | 1979-11-21 | 1981-06-23 | Tokyo Electric Co Ltd | Printer |
| JPS6260669A (en) * | 1985-09-10 | 1987-03-17 | Fujitsu Ltd | Platen mechanism |
| JPH04163075A (en) * | 1990-10-24 | 1992-06-08 | Shinko Seisakusho Co Ltd | Automatic plate position setting device |
| JPH05221047A (en) * | 1992-02-18 | 1993-08-31 | Fujitsu Ltd | Platen support structure in printer |
| JPH0844934A (en) * | 1994-07-29 | 1996-02-16 | Oki Electric Ind Co Ltd | Device for printing bankbook and method thereof |
| JPH08156353A (en) * | 1994-10-07 | 1996-06-18 | Canon Inc | Printing apparatus |
| JPH09193491A (en) * | 1996-01-17 | 1997-07-29 | Fujitsu Ltd | Printer |
| CN1118378C (en) * | 2000-09-15 | 2003-08-20 | 明基电通股份有限公司 | Feeder |
| JP2002292947A (en) * | 2001-03-23 | 2002-10-09 | Internatl Business Mach Corp <Ibm> | Printer and method of controlling the same |
-
2003
- 2003-07-23 JP JP2003200243A patent/JP4321151B2/en not_active Expired - Fee Related
-
2004
- 2004-04-14 TW TW093110320A patent/TWI295630B/en not_active IP Right Cessation
- 2004-06-15 CN CNB2004800171033A patent/CN100382975C/en not_active Expired - Fee Related
- 2004-06-15 KR KR1020057025033A patent/KR100896023B1/en not_active IP Right Cessation
- 2004-06-15 WO PCT/JP2004/008698 patent/WO2005009739A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103338937A (en) * | 2010-11-01 | 2013-10-02 | 斯科迪克斯有限公司 | System and method for transporting substrates |
| CN103338937B (en) * | 2010-11-01 | 2016-01-06 | 斯科迪克斯有限公司 | The system and method for transport printable fabric |
| CN103106758A (en) * | 2011-11-11 | 2013-05-15 | 山东新北洋信息技术股份有限公司 | Paper pressing plate component and paper pressing mechanism and slice type medium processing device |
| WO2013067889A1 (en) * | 2011-11-11 | 2013-05-16 | 山东新北洋信息技术股份有限公司 | Paper pressing board assembly, paper pressing mechanism and sheet medium treatment device |
| CN103106758B (en) * | 2011-11-11 | 2015-11-25 | 山东新北洋信息技术股份有限公司 | Pressboard assembly, paper-pressing mechanism and laminated medium processing unit |
| CN102582285A (en) * | 2012-03-02 | 2012-07-18 | 珠海天威飞马打印耗材有限公司 | Tablet printer |
| CN103317864A (en) * | 2012-03-23 | 2013-09-25 | 冲电气工业株式会社 | Printing device |
| CN103317864B (en) * | 2012-03-23 | 2016-03-09 | 冲电气工业株式会社 | Printing equipment |
| CN106864047A (en) * | 2017-03-03 | 2017-06-20 | 上海威侃电子材料有限公司 | Printhead and the automatic adjusting mechanism in rubber roll gap |
| CN109345640A (en) * | 2018-10-31 | 2019-02-15 | 广州广电运通金融电子股份有限公司 | A kind of magnetic medium processing unit and Automatic fare collection equipment |
| CN112009112A (en) * | 2020-09-15 | 2020-12-01 | 福建实达电脑设备有限公司 | Self-adaptive printing plate mechanism suitable for stylus printer and implementation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4321151B2 (en) | 2009-08-26 |
| WO2005009739A1 (en) | 2005-02-03 |
| KR20060036402A (en) | 2006-04-28 |
| JP2005040988A (en) | 2005-02-17 |
| TWI295630B (en) | 2008-04-11 |
| KR100896023B1 (en) | 2009-05-11 |
| TW200512095A (en) | 2005-04-01 |
| CN100382975C (en) | 2008-04-23 |
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