CN1236707A - Printer - Google Patents
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- Publication number
- CN1236707A CN1236707A CN 99105380 CN99105380A CN1236707A CN 1236707 A CN1236707 A CN 1236707A CN 99105380 CN99105380 CN 99105380 CN 99105380 A CN99105380 A CN 99105380A CN 1236707 A CN1236707 A CN 1236707A
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- CN
- China
- Prior art keywords
- printhead
- platen
- holding member
- printer
- angular displacement
- 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.)
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- Printers Characterized By Their Purpose (AREA)
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Abstract
The printer in accordance with the present invention consists of a printhead case for holding a plurality of printing heads integrally, a carriage for loading the printhead case and moving back and forth in a breadthwise direction of a recording medium, a platen oppositely arranged to each printing head for transferring the recording medium, a screw used for supporting the head case to be freely changeable in angle to the platen and regulating a center of the angular shift, and an eccentric bush used for adjusting an angular shift amount of the printhead case continuously. In such a printer, a parallelism of an arrangement direction of a printing head and a platen can be adjusted in a simple operation with high accuracy.
Description
The present invention relates to a plurality of printheads are put printer on balladeur train.
In the serial type printer that makes the balladeur train that puts printhead move back and forth, print along the record carrier cross direction, the printing number that the decision of the operating frequency of printhead is total.Method as further raising printing number has the double end mode that puts 2 printheads on 1 balladeur train, by driving each printhead simultaneously, print speed can be doubled.In addition, the relative position by adjusting each, print regularly point with a printhead and be formed on another printhead and write down between points, also can reach the purpose that improves the some packing density.
In the printer of this kind double end mode, the deviation of aspects such as the some position that requires each printhead is formed, shape, record concentration reduces.
The applicant proposes to adjust the scheme in the gap between a plurality of printheads and platen in Japanese patent laid-open 8-104043 communique, printhead side in 2 printheads of blocking is provided with pivot point exactly, with another printhead side as the rotation free end, at first, printhead and platen in the fulcrum side interleave people gap feeler gauge, adjust the gap of fulcrum side printhead with the off-centre rotation of balladeur train support, then the gap feeler gauge is inserted between free end side printhead and platen, adjust the gap of free end side printhead with the rotation of blocking printhead.
The object of the invention is to provide the printer that can adjust the depth of parallelism between print head configuration direction and platen with shirtsleeve operation accurately.
Printer of the present invention is included as the printhead holding member that a plurality of printheads is integral maintenance, the balladeur train that puts described printhead holding member, moves back and forth along the record carrier cross direction, face the platen of above-mentioned each print head configuration, transmission record carrier, and for the above-mentioned relatively platen of above-mentioned printhead holding member supporting becoming freely being produced the fulcrum member at angular displacement, regulation angular displacement center and being the micromotion mechanism that carries out the angular displacement adjustment of described printhead holding member continuously.
If according to the present invention, by the micromotion mechanism that can adjust the angular displacement of printhead holding member continuously being set, can adjusting subtly the dot characteristics of the some position that forms by each printhead, shape, record concentration etc.For example, though utilizing feeler gauge adjustment printhead gap, gap occasion, can make head consistent accurately with the mechanical dimension between platen, yet, when actual printing, there is the possibility of dot characteristics deviation because of the deviation effects that is subjected to each printhead machining accuracy, assembly precision, electrical characteristic.At this moment, the angular displacement of printhead holding member is adjusted on a small quantity, simultaneously tried to beat, can more correctly make the dot characteristics unanimity of each printhead by one side.Like this, can adjust the actual disposition direction of printhead and the depth of parallelism between platen with higher precision.
In addition, micromotion mechanism of the present invention is made of eccentric bush, and this lining is rotated to support to become and makes the barrel surface of joining with described printhead holding member carry out the off-centre rotation.
According to the present invention and since with manually or motor eccentric bush is rotated, the distance till making from the pivot of lining to the contact position of printhead holding member changes smoothly, can realize high-precision continuous micromotion mechanism with simple structure.
Micromotion mechanism of the present invention is made of the tooth portion that forms on described printhead holding member and this tooth portion meshed gears.
According to the present invention, owing to make the gear rotation with manual or motor, the speed reducing ratio that becomes according to gear and tooth portion makes the printhead holding member slowly produce angular displacement, can realize the continuous micromotion mechanism of high accuracy with simple structure.
In addition, action center and the described fulcrum member with micromover of the present invention is configured in respectively on the both ends of described balladeur train.
According to the present invention,, can further improve the adjustment precision because it is far away that service portion and angular displacement core are left.
Simple declaration to accompanying drawing
Fig. 1 is the exploded perspective view of expression the present invention the 1st embodiment,
Fig. 2 is the partial perspective view of expression printhead internal structure,
Fig. 3 is for to as the structure chart of printing equipment one example of the present invention when the side is seen,
Fig. 4 is for to the partial top view of the present invention the 1st embodiment when the top is seen,
Fig. 5 is near the amplification stereogram the eccentric bush 50,
Fig. 6 is for to the partial top view of the present invention the 2nd embodiment when the top is seen,
Fig. 7 is for to the partial top view of the present invention the 3rd embodiment when the top is seen.
Can from accompanying drawing and following detailed description, can make the object of the invention, characteristics and advantage clearer and more definite.Below, present invention will be described in detail with reference to the accompanying.
Fig. 1 is the exploded perspective view of expression the present invention the 1st embodiment.Printer is by the Write head container 20 that a plurality of (among Fig. 1 being 2) printhead is integral maintenance, for the balladeur train 40 and the relative printhead head 22 face-to-face printing platen formations such as (not shown) that dispose that put Write head container 20 and move back and forth along the record carrier cross direction.In Write head container 20, place the printhead 10 of 2 silk point modes as shown in Figure 2 side by side.
Fig. 2 is the partial perspective view of the internal structure of expression printhead 10.Printhead 10 is made of body 11 and head 22 grades as the line ways.On a body 11, by hitting the printing silk 14 that on record carrier, forms print point for using, link to each other, be elongated fan-shaped armature 12 with the rear end of printing silk 14, for in the rear end of printing silk 14 to the spring member 13 of armature 12 reinforcings and be 1 driver element of solenoid 15 formations that attracts armature 12 on the top of printing silk 14, configuration example is as along the circumferential direction disposing 24 driver elements.The drive circuit 16 of outer setting at a body 11 for selecting energising to drive to a plurality of solenoids 15.
Polylith (among Fig. 4 being 4) guide plate 18 is placed in inside at head 22.On guide plate 18, form a plurality of silk 14 through holes that run through that are printed.Corresponding with the configuration of printing silk 11 on the guide plate 18 that approaches a body 11, a plurality of through holes of configuration on the circumference of a body 11.In the face of in accordance with regulations a plurality of through holes of silk configuration, interconnected one-tenth 12 pins * 12 row for example on the guide plate 18 of record carrier.The printing silk 14 of through hole guiding can slide smoothly on the configuration of the through hole on the intermediate guide plate 18 is depended on both sides guide plate 18.
The action of printhead 10 now is described.In electromagnetic wire 15 "on" position not, armature 12 is static in the wings because of spring member 13.When drive circuit 16 is accepted print command according to print signal, pulse current is fed drive circuit 16, in solenoid 15, produce magnetic field, attract armature 12 to make displacement forward.Then print silk 14 in tip side displacement vertically, thereby only stretch out, for example on record carrier, form point-like and get ready by increment bone (イ Application Network リ ボ Application) by displacement to the guide plate 18 of record carrier.Like this, print silk 14 and realize that dot matrix modes print by making to drive with silk configuration on printing surface and drive circuit 16 timings corresponding, in accordance with regulations.
Among Fig. 1, on box-like Write head container 20, place side by side 2 printheads shown in Figure 2 10,10 corresponding with printhead on the face side of Write head container 20, side by side 2 printhead heads 22 are installed.Each head 22 is formed one with bridge plate 22a, thereby the relative position of the printing silk 14 that printhead 10 is mutual keeps.Form 3 pedestal 21a-21c that each head 22 is clamped on the front of Write head container 20, the upright position of the upright position of pedestal 21a-21c and head 22 is unanimous on the whole.The wiring substrate 23 and connector 24 of each printhead 10 are installed on the bottom surface of Write head container 20.
Balladeur train 40 has the end difference 41 of pedestal 21a-21c of supporting Write head container 20, and forms the shaped as frame that stretch out the bottom that makes Write head container 20 in the reverse side of end difference 41.The horizontal plane that pedestal 21a-21c is slided the top formation of end difference 41, and the formation screw 42a-42c corresponding with the through hole of pedestal 21a-21c are used from the locking of the top of screw 25a-25c Write head container 20 are fixed.
In printer, bar- shaped slide bar 71,72 and rotating band 73 are arranged in parallel along the record carrier width.Positive basifacial at balladeur train 40 forms the hollow guide pin bushing 43 that slides mutually with slide bar 71, on the L word shape joggling part 45 that is forming on the rearward end of balladeur train 40 at roller 44 swivel bearings of walking on the slide bar 72.With screw rotating band 73 is installed on the bottom surface of balladeur train 40.
In addition, on the side of Write head container 20, form the U word shape engagement member 26 that stretches out to this side.The roughly chimeric eccentric bush 50 in inside of engagement member 26 therewith is installed in erects on the pin 46 that is arranged on the balladeur train 40.Engagement member 26 and eccentric bush 50 constitute the angular displacement continuously adjustable micromotion mechanism to Write head container 20 thus.
The structure chart of Fig. 3 for printing equipment one example of the present invention is seen from the side.The Write head container 20 of placing 2 printheads 10 is put on 1 balladeur train 40.Balladeur train 40 supporting is become can be along 2 slide bars 71,72, reciprocatingly slide towards the width of record carrier, use the rotation of the not shown drive motor that links to each other with rotating band 73 that balladeur train is moved.
About action, be arranged to when supplying with record carrier P, use the rotation of platen 74 that record carrier P is transmitted along guide plate 76 to platen 74 and by 75 of pressure rollers, make the printing surface that faces head 22.Secondly, mobile balladeur train 40 one sides of one side drive printhead 10 according to the print data from control device, form the dot matrix that forms with the strike of printing silk 14 on record carrier P.Compare with the printer that put single printhead by making 2 printheads 10 print action simultaneously this moment, typing speed can be improved about 1 times, like this, become and to carry out the full line typewriting, replace repeatedly, can finish whole page or leaf typewriting by stepping transmission and the single file printing that makes paper used for recording P.
Fig. 4 is for to the partial top view of the present invention the 1st embodiment when the top is seen.From 2 the typewriting 10 2 heads 22 that stretch out towards platen 74, important configuration direction that is printhead 10 and platen 74 vertically between the depth of parallelism, make the gap one activation inhibition point position deviation of 74 of the top of each head 22 and platens exactly.
The internal diameter of the through hole of pedestal 21a is formed with the top external diameter (unthreaded portion) of screw 25a roughly chimeric, screw 25a plays the function of moving the central pivot point member as the angle of regulation Write head container 20.The through hole formation of pedestal 21b, 21c is also bigger than the external diameter of screw 25b, 25c, the angular displacement that allows Write head container 20 to produce in the horizontal planes.
Fig. 5 is near the amplification stereogram the eccentric bush 50.Lining 50 is formed by cylindric plastics etc., forms through hole along the axis that passes through from cylindrical center's deviation post slightly, makes the pin 46 of this through hole and balladeur train 40 roughly chimeric.Above eccentric bush 50, the eccentric direction that parallels to the axis forms the groove 51 along axis direction.In addition, the circular-arc breach face 52 top highly unanimous on the whole of formation and engagement member 26.
Form at interval overshooting shape scale 53 of expression reference position, equal angles on the breach face 52, on engagement member 26, also forming overshooting shape scale 26a.On eccentric bush 50, also form expression equal angles recessed people's shape scale 54 at interval.
The depth of parallelism that printhead 10 now is described is adjusted program.At first, Write head container 20 is put on balladeur train 40, screw 25a-25c is slowly fastening.Be supported to as the Write head container 20 of naming a person for a particular job with screw 25a at this state and can freely produce angular displacement.Then, in with manifold screwdriver top insertion groove 51, slowly make eccentric bush 50 rotations, owing to the off-centre rotation of eccentric bush 50 engagement member 26 that contacts with barrel surface is moved continuously along fore-and-aft direction, Write head container 20 produces angular displacement in the direction of rotation of screw 25a.At this moment, use analyzers such as gap feeler gauge or enlarging projection instrument to adjust the anglec of rotation of eccentric bush 50, make each gap of 74 of head 22 and platens consistent.Then, make screw 25a-25c firmly fastening, with Write head container 20 location.At this moment, measure each gap of 74 of head 22 and platens once more,, hold the anglec of rotation of eccentric bush 50 simultaneously by scale 53,54 in order to confirm zero deflection.
Then carry out test print, the dot characteristics of the some position that each printhead 10 is formed, shape, record concentration etc. is measured.Compare the dot characteristics that is formed by each printhead 10, the occasion producing the some deviation must print the angular displacement adjustment of a box 20.In the strong occasion of a fulcrum side hitting power, carry out the anglec of rotation inching of eccentric bush 50, the printhead that makes the rotation side is slightly near platen 74.Otherwise, the occasion a little less than the hitting power of fulcrum side head, the printhead that makes the rotation side is slightly away from platen.At this moment, by finely tuning, promptly use hand operated also can carry out high-precision depth of parallelism adjustment with the relative position of whole scale 53,54 of hand adjustment and 26a.
Like this, by one side carry out test print, one side is carried out a spot of adjustment to the angular displacement of Write head container 20 at every turn, can more correctly make the dot characteristics unanimity of each printhead 10, can carry out more high-precision adjustment the actual disposition direction of printhead and the depth of parallelism of platen.
The partial top view of Fig. 6 for the present invention the 2nd embodiment is seen from the top.Same with Fig. 4, make 2 heads 22 that stretch out from 2 printheads 10 in the face of platen 74, with screw 25a as fulcrum.Supporting Write head container 20 can freely produce angular displacement.At this, adopt the micromotion mechanism of forming by the gear 60 on tooth portion 27 that forms on the Write head container 20 and the pin 46 of swivel bearing to replace the micromotion mechanism of forming by eccentric bush among Fig. 4 50 and engagement member 26 at balladeur train 40.
Make the tooth portion 27 and gear 60 engagements that on the circumference of fulcrum, form as the center with screw 25a.Because the rotation of gear 60 is decelerated with the ratio of the radius of turn of gear 60 because of tooth portion 27, promptly uses manual operation gear 60, also can adjust the angular displacement of Write head container 20 with high accuracy.In addition, forming scale on gear 60 makes adjustment easier.
The partial top view of Fig. 7 for the present invention the 3rd embodiment is seen from the top.Same with Fig. 4, make 2 heads 22 that stretch out from 2 printheads 10 in the face of platen 74, can freely produce angular displacement with screw 25b as point supporting Write head container 20.At this, same with Fig. 4, adopt the micromotion mechanism of forming by eccentric bush 50 and engagement member 26, and the point that on the rear end face on the center line of Write head container 20, forms and shown in Figure 4 inequality.Therefore, form with the external diameter of screw 25b the internal diameter of the through hole of central pedestal 21b roughly chimeric, the aperture of the through hole of the pedestal 21a-21c at two ends is formed external diameter than screw 25a, 25c have greatlyyer, allow Write head container 20 in horizontal plane, to produce angular displacement.
Because with the center configuration of such fulcrum and micromotion mechanism, the variation that the gap of each head 22 only produces same amount in the other direction when adjusting with micromotion mechanism obtains left and right sides balance easily.
Above-mentioned explanation is to be that example describes so that a Write head container 20 that keeps 2 printheads 10 is put on 1 balladeur train 40, yet the present invention also can be suitable for for 3 above printheads 10 being put chimeric on balladeur train 40.
In addition, in the above description,, be using a silk point mode to be example, yet the present invention also can be suitable for for the printer that uses other such as printheads such as a heat mode, ink-jetting styles as printhead 10.
For the present invention, under the situation that does not break away from its aim or principal character, the embodiment of other various forms can be arranged also.Therefore, the described each point in the foregoing description only illustrates.Scope of the present invention is shown in claim, and it is described to be not limited only in the specification detail.All all changes or distortion in this claim scope all should be considered as included in the present invention.
Claims (4)
1. printer, be included as the printhead holding member that a plurality of printheads is integral maintenance, the balladeur train that puts described printhead holding member, moves back and forth along the record carrier width, and in the face of above-mentioned each print head configuration, transmit the platen of record carrier, it is characterized in that also being included as the above-mentioned relatively platen of above-mentioned printhead holding member supporting becoming freely produced angular displacement, stipulate the fulcrum member at this angular displacement center and be the micromotion mechanism that carries out the angular displacement adjustment of described printhead holding member continuously.
2. according to the described printer of claim 1, it is characterized in that described micromotion mechanism is become by eccentric swivel bearing the eccentric bush that its barrel surface and described printhead holding member join is constituted.
3. according to the described printer of claim 1, it is characterized in that described micromotion mechanism constitutes by the tooth portion that forms with this tooth portion meshed gears on described printhead holding member.
4. according to the described printer of claim 1, it is characterized in that the action center and the described fulcrum member of described micromotion mechanism are configured in respectively on the both ends of described balladeur train.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11936198A JPH11309918A (en) | 1998-04-28 | 1998-04-28 | Printer |
| JP119361/98 | 1998-04-28 | ||
| JP119361/1998 | 1998-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236707A true CN1236707A (en) | 1999-12-01 |
| CN1105028C CN1105028C (en) | 2003-04-09 |
Family
ID=14759602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99105380 Expired - Fee Related CN1105028C (en) | 1998-04-28 | 1999-04-28 | Printer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH11309918A (en) |
| CN (1) | CN1105028C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560376C (en) * | 2006-08-01 | 2009-11-18 | 佳能株式会社 | Tape deck |
| CN106976323A (en) * | 2017-04-21 | 2017-07-25 | 汤振华 | A kind of printer module installs governor motion |
| CN107379766A (en) * | 2016-04-21 | 2017-11-24 | 精工电子打印科技有限公司 | Balladeur train and fluid jet recording apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4506161B2 (en) * | 2003-12-09 | 2010-07-21 | セイコーエプソン株式会社 | Carriage mechanism and recording apparatus |
-
1998
- 1998-04-28 JP JP11936198A patent/JPH11309918A/en active Pending
-
1999
- 1999-04-28 CN CN 99105380 patent/CN1105028C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560376C (en) * | 2006-08-01 | 2009-11-18 | 佳能株式会社 | Tape deck |
| CN107379766A (en) * | 2016-04-21 | 2017-11-24 | 精工电子打印科技有限公司 | Balladeur train and fluid jet recording apparatus |
| CN107379766B (en) * | 2016-04-21 | 2019-11-29 | 精工电子打印科技有限公司 | Balladeur train and fluid jet recording apparatus |
| CN106976323A (en) * | 2017-04-21 | 2017-07-25 | 汤振华 | A kind of printer module installs governor motion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11309918A (en) | 1999-11-09 |
| CN1105028C (en) | 2003-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |