CN101058257B - Liquid ejection apparatus - Google Patents

Liquid ejection apparatus Download PDF

Info

Publication number
CN101058257B
CN101058257B CN2007101087426A CN200710108742A CN101058257B CN 101058257 B CN101058257 B CN 101058257B CN 2007101087426 A CN2007101087426 A CN 2007101087426A CN 200710108742 A CN200710108742 A CN 200710108742A CN 101058257 B CN101058257 B CN 101058257B
Authority
CN
China
Prior art keywords
gear
top cover
cylindrical cam
rotation
polishing piece
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.)
Expired - Fee Related
Application number
CN2007101087426A
Other languages
Chinese (zh)
Other versions
CN101058257A (en
Inventor
高桥优
井藤宽之
东上诚司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2003096643A external-priority patent/JP2004299311A/en
Priority claimed from JP2003175440A external-priority patent/JP4158614B2/en
Priority claimed from JP2003183294A external-priority patent/JP3589238B2/en
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of CN101058257A publication Critical patent/CN101058257A/en
Application granted granted Critical
Publication of CN101058257B publication Critical patent/CN101058257B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Ink Jet (AREA)

Abstract

A nozzle protecting device 30 of an ink jet type recording apparatus has a cap 46 which covers nozzles of a recording head and a cap support member 47 which is connected to the cap 45 via a spring member 80. The distance between the cap 46 and the cap support member 47 can be changed by elastic deformation of the spring member 80. A vent hole 54 is formed in the cap 46. A valve seat 56 which covers the terminal portion of the vent hole 54 is provided. A valve body 58 is rotatably attached to the lower portion of the cap 46. The valve body 58 selectively abuts on and parts from the valve seat 56 in accordance with the distance between the cap 46 and the cap support member 47. As a result, the inside of the cap 46 is opened and closed to air via the vent hole 54.

Description

Liquid injection apparatus
The application is that application number is 03804476.5, the applying date is that July 8, denomination of invention in 2003 are rotor, the division that drives the invention of conversion equipment, cleaning device, wiping arrangement and liquid injection apparatus.
Technical field
The present invention relates to a kind of rotor, drive conversion equipment, cleaning device, wiping arrangement and comprise the liquid injection apparatus of these devices.
Background technology
As the traditional liquid injection apparatus that liquid is injected into target, for example, by ink droplet jet to the page and the inkjet type printer of printing curve etc.Such printer has cradle member, and described cradle member has record head and platen, and described platen supports object, for example paper.Record head has a plurality of nozzles that spray China ink.Paper is directed between record head and platen, the China ink from nozzle ejection on paper.In order to prevent that China ink from blocking in nozzle, this printer is furnished with cleaning device usually with washer jet.Cleaning device comprises cover device, and described cover device has the wiping arrangement that the top cover that covers record head, the pipe pump and having to cover device to be connected are used for neatly polishing piece that the China ink that adheres on the record head is wiped out.Wiping arrangement by causing polishing piece and record head to slide contiguously the record head wiped clean.
To describe the cleaning operation of printer below in detail.At first, be moved to record head in the face of after the position of cover device at carriage, record head is covered tightly by top cover.Subsequently, the pipe pump is driven the sucking-off China ink, and described China ink becomes full-bodied and can cause obstruction in the nozzle with the air in top cover, and China ink is discharged outside nozzle.When the pipe pump was driven, polishing piece was placed on the precalculated position, and record head can be by wiping on the described precalculated position.When the suction of pipe pump when finishing, after top cover moved, carriage was moved causing that record head and polishing piece slide contiguously, thus the wiping record head.
In this cleaning device, the drive source that is used to drive cover device, manage pump and wiping arrangement is common, so that printer is compacter.Yet, with the pipe pump driving compare, cover device only be driven at short notice with wiping arrangement and their progress different.Therefore, construct the pipe pump so that it is being driven under the driving force that directly receives from drive source, and cover device and wiping arrangement are driven from the part driving force that drive source comes by driving conversion equipment, use.(for example, referring to Japanese publication publication 2000-153617 number and Japanese publication publication 2002-225299 number).Those publications disclose and use the printer that drives conversion equipment, and described driving conversion equipment uses single motor to come driving tube pump and polishing piece.
For example, in Japanese publication publication 2000-153617 number, the pump impeller of driving tube pump is arranged in a side of gear, and the driving force of motor reaches on the described gear.When gear rotated, pump impeller rotated along with the rotation of motor, and then the driving tube pump.Simultaneously, wiping arrangement is by being arranged in the opposite side of gear as the friction clutch that drives conversion equipment.The driving force of motor reaches wiping arrangement by friction clutch, and polishing piece is moved to the precalculated position.Friction clutch moves off and on according to the driving of managing pump.
Under the situation of above-mentioned publication, the driving force of motor reaches wiping arrangement by friction clutch separately.For example, under China ink adheres to situation on driven wheel and the clutch, the weight of device to be driven, promptly driven wheel and friction clutch increase because of the China ink that adheres to.Therefore, drive the needed frictional force of wiping arrangement and uprise, thereby, can not drive wiping arrangement even when the driving force of motor reaches friction clutch.
Japan publication publication 2002-225299 has disclosed is furnished with the printer of driving shaft with driving tube pump and wiping arrangement.The center of the pump impeller of driving shaft penetration tube pump.When pump impeller was directly rotated according to the rotation of driving shaft, the pipe pump was driven.Wiping arrangement has first drives structure and is different from second driving mechanism of first drives structure, and described first drives structure comprises that central gear, washer drive rod, gear keep bar and planetary gear, and described planetary gear is formed the driving conversion equipment.Driving shaft is assemblied in the center of central gear.When driving shaft rotated, second driving mechanism drove by central gear, so that wiper is placed to the precalculated position.The function of first driving mechanism is to move wiping arrangement off and on according to the driving of pipe pump.Therefore, the driving conversion equipment in Japanese publication publication 2002-225299 not in the Japanese publication publication 2000-153617, also can drive wiping arrangement even China ink adheres on those parts to be driven.
Exist because the opening that viscosity increases, grieshoch adheres to nozzle of the ink that solvent (for example water) causes from the opening part evaporation of nozzle and produce the situation of print defect owing to the replacing of print cartridge causes the mixing of bubble in the China ink.
Therefore, in order to keep the performance of nozzle under best condition, use being furnished with the nozzle guard device of top cover and pipe pump, described top cover covers the nozzle of record head, and described pipe pump is sucking-offs such as China ink in the top cover of covering nozzles and bubbles.Under situation about not printing for a long time, nozzle is covered by top cover, prevents that therefore China ink from becoming dry.When needing, be coated with at nozzle that the pipe pump is driven under the situation of top cover, negative pressure is arranged in the inside of top cover, thus the China ink that viscosity increases or since the quilts such as bubble that the replacing of print cartridge produces in record head drain in the black groove, thereby with the property retention of nozzle at best state.
If the driving tube pump is to be arranged to above-mentioned negative pressure to top cover inside, ink flows into top cover by record head and the inside of top cover is filled.Because those China inks do not need when printing, carry out so-called air suction by the pipe pump and simultaneously the air of top cover inside is discharged ink is arranged into black groove.When gently top cover being separated with nozzle, the air of top cover inside is discharged.
Recently, the size of inkjet-type recording device (printer) promptly diminishes, and comes the needs of positioning recording device constantly to increase with the bigger free degree.Tape deck day by day is used for the situation except horizontal situation with increasing, and if under such service condition, carry out air suction by said method, under the situation that top cover separates from nozzle, then ink will leak from top cover.As a result, the inside of tape deck is dirty.
Therefore, even tape deck is placed on except a kind of state under the level,, provide when needing to cause communicate with the air air releasing device of while covering nozzles of top cover in order to ensure air suction.With before nozzle separates, the air releasing device can discharge the top cover inner air at top cover, thus under the situation that does not cause ink leakage ink row place to outside.
An example with nozzle guard device of air releasing device comprises pipe and valve, and described pipe makes top cover inside communicate with air, and described valve opens or closes the end portion of pipe.The nozzle guard device is a sliding-type, and when print cartridge was mobile on the scanning direction, its slider rose or descends, thereby top cover is according to height covering nozzles when it rises of slider.Carry out the opening/closing of valve according to the operation of print cartridge on the scanning direction, air is drawn into top cover inside when needing.
Yet therefore the pipe that such air releasing device need be suitable for locating makes the structure of nozzle guard device become complicated.In addition, after mobile be opened or closed of valve, discharge by the pipe pump at the ink of top cover inside by print cartridge.Therefore, driving first drive unit of print cartridge and second drive unit of driving tube pump should be driven respectively, makes structure complicated.
Sliding-type nozzle guard device makes carriage become big at interval on the scanning direction, and this is a factor that device is enlarged.Therefore, recently, compare with sliding-type, can make diminish at interval on/following mobile model becomes main flow.For example, Japanese publication publication 2002-36578 number disclose a kind of have air release valve on/following mobile model nozzle guard device.
The nozzle guard device has multistage rotating cam, and described multistage rotating cam has a plurality of cams on same axle.Multistage rotating cam has first cam that top cover is risen, opens and closes second cam and motor as the air communication valve of air releasing device.When the driving force of motor reaches the gear of multistage rotating cam and pipe pump, carry out the rising of top cover, the opening/closing of air communication valve and the driving of pump gear.And the air communication valve opens or closes under the situation of top cover covering nozzles, and drive pump gear is to carry out the air suction afterwards.
Move not closing of the operation of top cover and air communication valve and carriage, and can drive top cover, air communication valve and pump gear by a motor and carry out the air suction, and then simplification device.
Though be made into simplyr at the nozzle guard device disclosed in Japanese publication publication 2002-36578 number, it needs bigger space be used for multistage rotating cam, makes inkjet-type recording device bigger.
The driving conversion equipment that discloses in Japanese publication publication 2002-225299 number is made from multiple components.Therefore, heavy duty puts on the driving shaft that drives wiping arrangement and pipe pump.
That is, need bigger driving force to come to drive more reliably wiping arrangement and pipe pump.Generation needs bigger motor than large driving force.Owing to finally need the size of conversion equipment to reduce to reduce to produce with the size of tape deck, it is difficult using bigger motor.
At object to be printed is that for example CD-ROM is necessary to make that platen is bigger to the distance between the record head under the situation of thicker object.Because wiping arrangement normally is fixed on the printer, when record head moves up so that the distance of platen between record head when big variable in distance between polishing piece and the record head.Therefore, polishing piece changes the sliding pressure of record head, makes very difficult wiping satisfactorily adhere to the ink on the record head.
For example, Japanese publication publication discloses a kind of technology 2002-264350 number, even be used for platen to the variable in distance between the record head, the wiping ability that also can reduce the wiping speed of wiping arrangement or increase polishing piece is to clean record head fully.
Yet,, when the variable in distance of platen between record head, also be difficult to wiper wiping and clean record head fully even use 2002-264350 number disclosed technology of Japanese publication publication.Therefore, need a kind of technology, though when the variable in distance of platen between record head also wiping and cleaning record head more satisfactorily.
Summary of the invention
First purpose of the present invention provides a kind of compact liquid-jet device with simple structure.Even second purpose provides a kind of liquid-jet device that does not also cause leak of liquid when other state uses except level.
In order to obtain above-mentioned purpose, the invention provides following liquid-jet device.This liquid-jet device has top cover, top cover support part, drive unit, elastic device and air releasing device.Described top cover support part supports top cover.Described drive unit drives the top cover support part top cover is moved and covers with top cover the nozzle of jet head towards jet head.Elastic device is inserted between top cover support part and the top cover.When elastic device extended under the situation of top cover covering nozzles, elastic device changed the distance between top cover support part and the top cover.The air releasing device opens and closes at the relative air of the variation of the top cover internal condition distance of covering nozzles.
The present invention also provides following rotor.This rotor has gear and the revolving part that part has tooth.Part has the gear of tooth to have a plurality of teeth on its circumferential surface part.Revolving part has the rotation of the gear of tooth to rotate according to part.Part has the gear of tooth to be engaged to revolving part by this way, make to allow to rotate in predetermined scope.
The present invention also provides a kind of driving conversion equipment of being furnished with above-mentioned rotor.Described driving conversion equipment has driven wheel and the driven gear and the impeller that engage of driven wheel therewith.The part of driven wheel and rotor has the gear engagement of tooth.Tooth is made along the circumferential surface of whole driven gears.Impeller has driven gear the gear of tooth to promote towards part, so that moment of torsion is reached the gear that part has tooth from driven gear.The moment of torsion of driven gear has the gear of tooth from engage the state of being broken with driven wheel along the direction drive part that engages with driven wheel.
The present invention further provides a kind of cleaning device of being furnished with above-mentioned driving conversion equipment.This cleaning device is furnished with the wiper device that has polishing piece and wiper support member.Polishing piece wiping neatly has a plurality of jet head that are used for the nozzle of atomizing of liquids.Wiper supports support polishing piece.The keeper that drives conversion equipment is engaged to the wiper support member.When driving the rotor rotation of conversion, keeper rising and decline are so that polishing piece rises and decline.
The present invention further provides a kind of liquid-jet device.Described liquid-jet device has platen, jet head, polishing piece and wiper apparatus for adjusting position, described platen supports object, described jet head is injected into object to liquid, described polishing piece and jet head in abutting connection with and its wiped clean, described wiper apparatus for adjusting position is regulated the raised position of polishing piece based on the height of jet head.
Description of drawings
Fig. 1 is the perspective view according to the inkjet-type recording device of the explanation first embodiment of the present invention;
Fig. 2 is the perspective view that is provided in the nozzle guard device in the tape deck of Fig. 1;
Fig. 3 is that the part of nozzle guard device shown in Figure 2 is dissected perspective view;
Fig. 4 is that the part of nozzle guard device shown in Figure 2 is dissected cross-sectional view;
Fig. 5 is the partial cross sectional view of nozzle guard device shown in Figure 2;
Fig. 6 is provided in a side of the perspective view of the cylindrical cam in the nozzle guard device shown in Figure 2;
Fig. 7 is that explanation is at the tight contact portion of nozzle guard device shown in Figure 2 and the curve map of the state before the record head adjacency;
Fig. 8 is the curve map of the state of explanation tight contact portion shown in Figure 7 and record head adjacency;
Fig. 9 is the curve map that the bar of explanation nozzle guard device shown in Figure 2 is outwards given prominence to state;
Figure 10 is that the top cover of explanation nozzle guard device shown in Figure 2 is approaching and the curve map of the location status that the top cover support part is nearest;
Figure 11 is the curve map that the state of the valve body rotation that is provided in nozzle guard device shown in Figure 2 is described;
Figure 12 is the side view of nozzle guard device according to a second embodiment of the present invention;
Figure 13 is the side view that explanation nozzle guard device shown in Figure 2 is provided with the state of spacer;
Figure 14 is the curve map of top cover support part under the state that topmost moves in the explanation nozzle guard device shown in Figure 12;
Figure 15 is that the curve map under the adjacent part adjacency state of ledge in the nozzle guard device shown in Figure 12 and spacer is established in explanation;
Figure 16 is the front view that is provided in the major part of the nozzle guard device in the tape deck of a third embodiment in accordance with the invention;
Figure 17 is the plan view of nozzle guard device shown in Figure 16;
Figure 18 is the outline perspective view from the nozzle guard device seen of pipe pump side;
Figure 19 is the outline perspective view of the nozzle guard device seen from the drive motor side;
Figure 20 (a) be see from the bottom according to the cylindrical cam of the 3rd embodiment and the perspective view of wiping arrangement;
Figure 20 (b) be see from the bottom according to the cylindrical cam of the 3rd embodiment and the perspective view of wiping arrangement;
Figure 21 is a cylindrical cam and around the upward view of the parts around its;
Figure 22 is the front view of cylindrical cam;
Figure 23 is the decomposition diagram of cylindrical cam;
Figure 24 is the upward view that the gear of tooth is arranged according to the part of the cylindrical cam of the 4th embodiment;
Figure 25 is the upward view that the part of cylindrical cam shown in Figure 24 has the gear of tooth;
Figure 26 is the upward view that the part of cylindrical cam shown in Figure 24 has the gear of tooth;
Figure 27 is the perspective view of tape deck according to a fifth embodiment of the invention;
Figure 28 (a) is the platen of explanation in being provided in tape deck shown in Figure 27 and the slit side view between the record head;
Figure 28 (b) is the side view of explanation in record head that moves up under the state of Figure 28 (a) and the slit between the platen;
Figure 29 is the front view of non-operating position that is provided in the polishing piece of tape deck shown in Figure 27;
Figure 30 is the expanded view of the major part on the circumferential surface of the cylindrical cam in Figure 29;
Figure 31 is the front view of primary importance of the action of polishing piece shown in Figure 29;
Figure 32 is the front view of the second place of the action of polishing piece shown in Figure 29;
Figure 33 is the expansion view of the side of cylindrical cam according to a sixth embodiment of the invention
The specific embodiment
Below with reference to Fig. 1-6 explanation first embodiment of the present invention.
As shown in Figure 1, have framework 12, be suspended on the platen 13 on the framework 12 and be equipped with the unshowned paper advance mechanism of feed motor 14 as the inkjet-type recording device 11 of liquid-jet device across ground.Platen 13 is the supporting mechanisms that support paper P, and the paper P that drives institute's feeding by feed motor 14 is drawn towards end face.Feed motor 14 drives unshowned roller, with at the paper P of platen 13 upper supports along infeeding on the direction of arrow Y shown in Figure 1.Keep being located at platen 13 times with the waste liquid tank 40 of the ink of crossing.
Drive pulley 19 and follow-up pulley 20 are fixed on the framework 12.Reversible tray motor 18 is engaged on the drive pulley 19.Synchronous belt 17 stretches around a pair of pulley 19 and 20.Carriage 16 is fixed on the synchronous belt 17.In addition, being parallel to the guide 15 that platen 13 stretches is located on the framework 12.Guide 15 stretches along be parallel to the axis that extends on the length direction of platen 13.Carriage 16 supports axially movable with along guide 15 by this way on guide 15.Carriage 16 is moved back and forth along guide 15 by the driving of tray motor 18 by synchronous belt 17.
First and second print cartridges 21 and 22 are removably mounted on the carriage 16.First print cartridge 21 keeps the ink of black.Second print cartridge 22 keeps magneta colour, cyan and yellow China ink respectively in three definite holding chambers.Record head 28 as jet head is located at carriage 16 times.Record head 28 has a plurality of unshowned nozzles.The discharge port is arranged on the bottom side of nozzle.When the element of unshowned piezoelectricity was driven based on print data, ink was provided to record head 28 and ink droplet from print cartridge 21 and 22 and sprays to print to paper P from discharging port.
Be used to protect the nozzle guard device 30 of the nozzle of record head 28 to be located at a side part of framework 12, a side of described framework 12 partly is a printable area (former original position) not.Nozzle guard device 30 also comes washer jet as cleaning device.
Shown in Fig. 2 and 3, nozzle guard device 30 has shell 31, cover device 32, wiping arrangement 34, cylindrical cam 35, pipe pump 37 and drive motor 38.
Shell 31 is boxes that have corresponding to the shape of cuboid.Shell 31 has first retaining part 41 and second retaining part 42, and described first retaining part 41 is opened to the top and a side of shell 31, and described second retaining part 42 is opened to the top of shell 31.Retaining part 41 and 42 is set to be adjacent to each other.As shown in Figure 3, the 3rd retaining part 43 is located in the shell 31 by this way, thereby makes retaining part 41 and 42 adjacency.The 3rd retaining part 43 is closed by top cover 44.Opening 45 is located on the border between the 3rd retaining part 43 and first retaining part 41 and second retaining part 42.
Cover device 32 remains in first retaining part 41.Cover device 32 has box-shaped top cover 46 and will be connected to the top cover support part 47 of top cover 46.Top cover support part 47 has first to fourth side 471,472,473 and 474.Top cover support part 47 supports so that its upper and lower direction along first retaining part 41 is removable by this way at first retaining part, 41 places.
Top cover 46 has opening.The opening of top cover 46 has such size can cover the nozzle of record head 28.Closely contact portion 51 is located at the around openings of top cover 46, and when top cover 46 covered the nozzle of record head 28, closely contact portion 51 was connected to record head 28 to top cover 46 tightly.
Be the inside that the absorber element 52 of a plate is located at top cover 46.Absorber element 52 has such function, and promptly when top cover 46 covers the nozzle of record heads 28, absorber element 52 keeps inks so that high and prevent that ink from becoming dry in top cover 46 humidity inside.In order to prevent that the ink in discharging port from stopping up, there is not the discharge of a lot of ink droplets at described discharge port, no matter when preset time is in the past and when spraying ink droplet, when the irrelevant driving signal of handle and printing put on record head 28, absorber element 52 was receiving from discharging the ink that port drips.
Discharge ports 53 built in cap base for two of the bottom that pass top cover 46.As shown in Figure 4, each is discharged port 53 and is connected to relevant China ink pipe 53a.The ink that remains in the top cover 46 is discharged by each China ink pipe 53a.In addition, full-bodied ink, dust, bubble etc. are extracted out with washer jet from nozzle by each China ink pipe 53a.
As the air vent 54 of through hole bottom built in top cover 46.The function of through hole 54 is to allow air to flow to into top cover 46.Under the state that ink in remaining on top cover 46 is discharged from, that is, in the inside of air suction with emptying top cover 46, air is conducted through air vent 54.
As shown in Figure 5, column part 55 extends from the bottom of top cover 46.Column part 55 is around air vent 54.The valve seat 56 that is located at the lower end of cylinder 55 is enclosed in the end of air vent 54.Valve seat 56 is made by flexible material, for example synthetic rubber.
Shown in Figure 4 and 5, two bearings 57 are arranged in the lower part of top cover 46 like this so that face with each other.Valve body 58 is connected on two bearings 57 like this so that be rotatable around axle 62a.Valve body 58 further is included near the support section 62 plate 61 that stretches on the length direction of top cover 46 and the center that is located at plate 61.It is terminal that axle 62a is located at going up of support section 62.
The first of plate 61 (left-hand part of the plate 61 among Fig. 5) is by being connected to the downside of top cover 46 as the spring part 58a of impeller.Spring part 58a promotes the plate 61 of valve body 58 usually downwards.There is not external force to put under the situation on the valve body 58, top surface of the second portion of plate 61 (right hand portion of plate 61 among Fig. 5) and valve seat 56 adjacency, thereby sealing air vent 54.The first inclined surface 61a is built in the end portion of the second portion of plate 61, and the described first inclined surface 61a is to become predetermined angle to tilt with the perpendicular direction of top cover support part 47.
First stylolitic part 63 is located on the 3rd side 473 of top cover 46 highlightedly, and second stylolitic part 64 is located on second side 472 of top cover 46 highlightedly.
Top cover support part 47 is approximate rectangular frameworks, and top cover 46 is contained in the inside of top cover support part 47.As shown in Figure 5, first long recess 65 is on the 3rd side 473 of top cover support part 47, and described first long recess 65 extends along the vertical direction of Fig. 5.Shown in Figure 4 and 5, second long recess 66 is built in the side of top cover support part 47, and described second long recess 66 extends along vertical direction among the figure.The stylolitic part 63 and 64 of top cover 46 penetrates relevant long recess 65 and 66 and vertically go up on long recess 65 and 66 removable.The last end of each relevant long recess 65,66 is cut like this so that have leg-of-mutton cross section.
As shown in Figure 4, confinement plate 67a is located near the part the center on its width of being positioned at of top cover support part 47.Opening 67 has been determined in first side 471 of confinement plate 67a and top cover support part 47.Opening 67 is located at the position in the face of pipe pump 37.The first short groove 68 with approximate U-shape cross section is on second side 472 of top cover support part 47.The first short groove 68 extends to top from the bottom of second side 472 of top cover support part 47.The second short groove 69 with approximate U-shape cross section is on confinement plate 67a.The second short groove 69 extends to top from the bottom of confinement plate 67a.
Shown in Figure 4 and 5, be located on the opening 67 as the sliding part 71 of extrusion.Sliding part 71 comprises columnar stays bar 72, approximate cylindrical rods 73 and connector 74.Support bar 72 and bar 73 are fixing by connector 74.Two end portion of support bar 72 are inserted two short grooves 68 and 69 of top cover support part 47.By these structures, sliding part 71 is movably along the length direction of top cover support part 47, and sliding part 71 on the direction of the Y of arrow shown in Fig. 4 and the mobile of upper and lower direction of top cover support part 47 be confined.
The second inclined surface 73a that tilts with respect to the vertical direction of top cover support part 47 is built in first end portion (left-hand part that is equal to the bar 73 of Fig. 5) of bar 73.Simultaneously, second end portion of bar 73 (right hand portion that is equal to Fig. 5 king-rod 73) is inserted in the 3rd long recess 75, and described the 3rd long recess 75 is in second side 472 of top cover support part 47.
Connector 74 is immovable on the vertical direction of top cover support part 47.Connector 74 has tabular restricted part 76, and described restricted part 76 is extended in the direction perpendicular to the axle of support bar 72.When sliding part 71 when move at the width center of top cover support part 47, the confinement plate 67a adjacency of restricted part 76 and top cover support part 47.So, be limited along the mobile of sliding part 71 on the width of top cover support part 47.
As shown in Figure 4, restricted part 76 is provided with the ledge 76a that gives prominence on the arrow x direction in Fig. 4.As shown in Figure 5, be located between the inner surface of second side 472 of ledge 76a and top cover support part 47 as the spring part 77 of impeller.Spring part 77 promotes sliding part 71 left or to the center of the width of top cover support part 47.Do not put in external force under the situation of sliding part 71, the restricted part 76 of sliding part 71 and the confinement plate 67a of top cover support part 47 are adjacent to each other.
As shown in Figure 4, through hole 78 is built in the part in the face of drive motor 38 of first side 471 of top cover support part 47.Column keeper 79 inserts in the through hole 78.Keeper 79 is along removable on the direction of arrow Y shown in Figure 4.Keeper 79 is connected to top cover support part 47 by unaccounted spring part.Spring part promotes keeper 79 along the direction of arrow Y shown in Figure 4.
Top cover 46 is connected to top cover support part 47 like this by the spring part 80 as elastic device as shown in Figure 5, to such an extent as to the stylolitic part 63 and 64 of top cover 46 all penetrates into the long recess separately 65 and 66 of top cover support part 47.Spring part 80 promotes top cover 46 like this, to such an extent as to top cover 46 and top cover support part 47 are separated from one another along the vertical direction of top cover support part 47.Top cover 46 is with respect to mobile be limited of top cover support part 47 on the direction of arrow x shown in Figure 4 and arrow y.
Therefore, do not have external force to put on top cover 46, the distance between top cover 46 and the top cover support part 47 reaches maximum in vertical direction.As shown in Figure 5, therefore each stylolitic part 63 of top cover 46 and 64 end portion adjacency on the long recess separately 65 of top cover support part 47 and 66, has limited the increase of the distance between top cover 46 and the top cover support part 47.
When top cover 46 and top cover support part 47 linked together, the inclined surface 61a of the valve body 58 of top cover 46 (plate 61) and the inclined surface 73a of bar 73 were placed on the position respect to one another with preset distance.As discussing afterwards, when the distance between top cover 46 and the top cover support part 47 during in minimum of a value, bar 73 is placed on the plate 61.When the distance between top cover 46 and the top cover support part 47 during in maximum, bar 73 is placed on plate 61 times and in the outside of the movably scope of plate 61.
As Figure 1-3, wiping arrangement 34 is contained in second retaining part 42 of shell 31 like this, to such an extent as to be movably on the vertical direction of shell 31.Wiping arrangement 34 has polishing piece 81, and described polishing piece 81 has approximate cuboid and made by elastomeric material.Therefore, the wiping arrangement 34 that moves to top when carriage 16 usefulness drives and record head 28 when crossing on wiping arrangement 34, and polishing piece 81 and record head 28 slide contiguously with the nozzle wiped clean of record head 28.
As shown in Figure 6, cylindrical cam 35 inside have patchhole 82.The last end portion 83 of cylindrical cam 35 and lower end part 84 all be ring-type and extend in the diametric(al) of cylindric cam 35.Have identical shaped a plurality of teeth 85 with identical tooth pitch only on half circumference of the last end portion 83 of cylindrical cam 35.Half circumference of residue of the last end portion 83 of cylindrical cam 35 has smooth arc.Cam groove 86 is located between the last end portion 83 and lower end part 84 of cylindrical cam 35.Cam groove 86 is located at below the part of end portion 83, and a described part that goes up end portion 83 has level and smooth shape and determined by 14 surfaces (i.e. the first to the 14 surperficial 87-100).
The cam 35 of cylinder is positioned in the opening 45 of the 3rd retaining part 43 shown in Figure 3.The shaft portion 102 that is fixed to the 3rd retaining part 43 inserts in the patchhole 82 of cam 35 of cylinders.The cam 35 of cylinder is rotation around shaft portion 102.By the cylindrical cam 35 that is inserted in shaft portion 102, keeper 79 (see figure 4)s of top cover support part 47 engage with the cam groove 86 of cylindrical cam 35.
When cylindrical cam 35 during along the direction of arrow shown in Figure 6 rotation, at first, the keeper that is placed on the extreme lower position (with lower end part 84 position contacting) of cam groove 86 is directed to the extreme higher position by first to the 3rd surface 87,88 and 89, and described first to the 3rd surface 87,88 and 89 on the skew extends to the axial of cylindrical cam 35.When cylindrical cam 35 during further along the rotation of the direction of arrow, keeper 79 is by the 4th and the 5th the 90 and 91 and the 6th to the 8th surface 92,93, surface and 94 adjacency, and the described the 4th and the 5th surface 90 and 91 extends to axial abreast.Elongated gradually from the distance of pivot to three surface 90,91 of cylindrical cam 35 and 92.Keeper 79 is by to push in the opposite direction with the side of arrow y (see figure 4).
Thereafter, when cylindrical cam 35 with Fig. 6 in the direction of arrow when rotating on the contrary, keeper 79 is directed to the 6th surface 92, then, with the 9th surperficial 95 adjacency, described the 9th surface 95 is far away apart from the pivot of cylindrical cam 35 than the 4th surface 90 apart from the pivot of cylindrical cam 35.Then, it is directed to the 7th surface 93 and top cover support part 47, and described the 7th surface 93 on the skew extends to direction of rotation, because static load, described the 7th surface 93 and top cover support part 47 are as a whole to lower slider.Thereafter, it is by the 96 and 97 and the 12 and the 13 surface, the tenth and the 11 surface 98 and 99 adjacency of taper.Elongated gradually and keeper 79 further is extruded in the opposite direction with the side with arrow y (see figure 4) apart from the distance of pivot on three surfaces 95,96 and 97.
When cylindrical cam 35 again with Fig. 6 in direction when rotation of arrow, keeper 79 is directed to the 12 and the 13 surface 98 and 99, is parallel to the direction of rotation location, and with the 14 surperficial 100 adjacency.Thereafter, when cylindrical cam 35 rotates in the opposite direction with the side with arrow, keeper 79 is directed to the 12 and 13 surfaces 98 and 99, be directed to first and second surfaces 87 and 88 then, and top cover support part 47 is to lower slider and owing to static load returns to initial extreme lower position.Second surface 88 has apart from pivot than the 12 surface 98 apart from the shorter distance of pivot, and keeper 79 recovers along the effect by spring part of the direction (see figure 4) of arrow y.Keeper 79 is directed to upper and lower direction as above-mentioned rotation by cylindrical cam 35.Therefore, top cover support part 47 moves with upper and lower direction as a whole.
As shown in Figure 3, pipe pump 37 remains in the 3rd retaining part 43 of shell 31 by this way so that do not contact cylindrical cam 35.As shown in Figure 4, pipe pump 37 has pump impeller 105 and roller 106, and described pump impeller 105 rotatably is supported on the rotating shaft 104, and described roller 106 moves along the unshowned brace groove of pump impeller 105.Overlap in the interval kind location of ink barrel 53a between the 3rd retaining part 43 (see figure 3)s and pump impeller 105.In Fig. 4, for convenience of explanation, ink barrel 53a only partly illustrates.
When pump impeller 105 rotated along direction forward, the 106 rotation whiles of roller are extruded ink water pipe 53a subsequently.This upstream side at pipe pump 37 makes ink barrel 53a inner pressure relief.
When pump impeller 105 rotated with opposite direction, the release conditions that roller 106 contacts ink barrel 53a lightly were held.So the pressure in pipe pump 37 is uniform on whole pipe pump 37.In addition, prevent the shortcoming that the adhesion etc. by roller 106 and ink barrel 53a causes.
As shown in Figure 3, to such an extent as to drive motor 38 is contained in the 3rd retaining part 43 by this way can rotate with rightabout forward.Forward/driving force that the phase despining causes drive motor 38 reaches wiping arrangement 34, cylindrical cam 35 and pipe pump 37 by first to fourth gear 107-110.
Driven wheel 38a is fixed to the far-end of the rotating shaft of drive motor 38.Driven wheel 38a is connected to the 3rd gear 109 by first gear 107 and second gear 108, and described first gear 107 and second gear 108 rotatably are supported on the shell 31.The 3rd gear 109 is fixed to the far-end of the rotating shaft 104 of pipe pump 37, and described far-end remains among the retaining part Kc of shell 31.The 3rd gear 109 further is connected to the 4th gear 110 that rotatably is supported on the shell 31.A plurality of teeth of the 4th gear 110 engage with the tooth 85 of cylindrical cam 35 shown in Figure 6.
When drive motor 38 rotated forward, the driving force of drive motor 38 reached cylindrical cam 35 by first to fourth gear 107,108,109 and 110, and cylindrical cam 35 is with the direction rotation of arrow shown in Figure 6.Because a plurality of teeth 85 only are located on half circumference of cylindrical cam 35, so also half of rotation round only of their maximum.When change drive motor 38 be rotated into rightabout forward the time, cylindrical cam 35 rotates in the opposite direction with the side with arrow.Cylindrical cam 35 only is semi-circumference rotation with maximum again.
As shown in Figure 4, peace ranked third gear 109 so that the upside of the pump impeller 105 of pipe pump 37 is overlapping like this, and rotatably is supported on the rotating shaft 104.The first ledge 110a is outstanding from the lower surface of the 3rd gear 109.Simultaneously, the second ledge 105a is located at the upper surface of pump impeller 105, and the first ledge 110a is equal apart from the distance of rotating shaft 104 with the second ledge 105a.The first ledge 110a and the second ledge 105a are provided with like this, thereby partly overlap each other in the direction of rotation of rotating shaft 104.According to the relative position of the 4th gear 110 and pump impeller 105 on direction of rotation, the first ledge 110a and the second ledge 105a optionally are adjacent to each other or are moved apart each other.
When to such an extent as to the rotation forward of drive motor 38 on direction forward is adjacent to each other the 3rd gear 109 rotation first ledge 110a and the second ledge 105a, the moment of torsion of the 3rd gear 109 is passed on the pump impeller 105 by ledge 105a and 110a, thereby pump impeller 105 rotates forward.
When drive motor 38 rotation is changed to opposite spin forward the time, the 3rd gear 109 changes rotating to forward in the other direction of it, causes that the first ledge 110a and the second ledge 105a are separated from one another.Then, the rotation of pump impeller 105 stops.When the 3rd gear 109 rotation during near a circle, the first ledge 110a and the second ledge 105a be adjacency more each other, the moment of torsion of the 3rd gear 109 being reached on the pump impeller 105 by ledge 105a and 110a, thus pump impeller 105 reverse rotations.
That is, drive motor 38 rotate to forward reverse rotation alternately and set a time lag between the beginning of the reverse rotation of pump impeller 105 near a circle of the 3rd gear 109.Similarly, alternately between the beginning of the rotation forward of pump impeller 105 set similar time lag in the reverse rotation of drive motor 38 to rotation forward.
Therefore, under the situation that drive motor 38 reverse rotations begin to rotate forward then, at first, cylindrical cam 35 rotates half with maximum on the direction of the arrow of Fig. 6.When drive motor 38 further rotates forward, after postponing, pump impeller 105 begins to rotate forward.Rotate forward at drive motor 38 and to begin then under the situation of opposite spin, cylindrical cam 35 rotates half in the direction opposite with the direction of arrow of Fig. 6 with maximum.When the further reverse rotation of drive motor 38, begin reverse rotation after 105 1 delays of pump impeller.
To have the action of the nozzle guard device 30 of said structure based on Fig. 7-11 explanation.In Fig. 7 to 11, for convenience, the explanation of top cover support part 47 only limits to sliding part 71 and keeper 79.In addition, for convenience, ignore spring part 58a separately, 77 and 80 explanation.
At first, carry out cleaning operation and flash distillation (flashing) operation in tape deck 11, in described tape deck 11, carriage 16 moves to the former original position of framework 12.Then, as shown in Figure 7, the record head 28 of carriage 16 is in the face of the top cover 46 of nozzle guard device 30.Under such state, the cam groove of the cylindrical cam 35 among keeper 79 and Fig. 6 86 engages in minimum point; Particularly, the first surface 87 and second surface 88 adjacency of it and cam groove 86.
The distance maximum state of Fig. 7 explanation between top cover 46 and keeper 79 (top cover support part 47).The bar 73 that is included in the sliding part is arranged in the valve body of top cover 46 below 58.The plate 61 and valve seat 56 adjacency of valve body 58, thus close air vent.Under such state, be discharged from even work as the ink that carries out flash distillation operation and top cover 46 inside, can prevent that also ink from leaking from air vent 54.
Carry out after the cleaning operation, drive motor 38 rotates forward and the driving force of drive motor 38 is passed to the tooth 85 of the last end portion 83 of cylindrical cam 35 by all gears 107,108,109 and 110 (see figure 3)s, causes that cylindrical cam 35 rotates on the direction of arrow of Fig. 6.Then, keeper 79 moves and the second and the 3rd surface 88 and 89 adjacency with the cam groove 86 of cylindrical cam 35 of rising simultaneously.
Then, also rise according to the rising top cover support part 47 of keeper 79, the tight contact portion 51 of top cover 46 and record head in abutting connection with and cover record head as shown in Figure 8.Moving up of top cover 46 by record head 28 restrictions.In addition, be located at spring part 80 strains between top cover and the top cover support part 47, therefore reduce the relative distance between top cover 46 and the top cover support part 47.
Therefore, when scheduled time past tense, the inclined surface 73a adjacency of the inclined surface 61a of plate 61 and bar 73.In addition, when drive motor 38 rotates forward when moving up top cover support part 47, the resistance between the inclined surface 61a of the inclined surface 73a of plate 61 and bar 73 overwhelms the elastic force of spring part 77, thus spring part 77 strains, cause that bar 73 moves right, as shown in Figure 9.
When keeper 79 moves to position in the cam groove 86 of cylindrical cam shown in Figure 6 35, this the 89 and the 4th surface 90, the 3rd surface, position is adjacent to each other, distance between top cover 46 and the top cover support part 47 reaches minimum of a value, and bar 73 be positioned at bar 73 plate 61 above, as shown in figure 10.At this moment, bar 73 is owing to the elastic recovery of the spring part 77 of sliding part 71 is moved to the left.
When drive motor 38 further rotated forward, keeper 79 slided in abutting connection with ground with the 5th to the 7th surface 91,92 and 93 of the cam groove 86 of cylindrical cam 35 shown in Figure 6, and with the 8th surperficial 94 adjacency.Then, the tooth 85 of the last end portion 83 of cylindrical cam 35 moves to not and the 3rd gear 109 (see figure 3) position contacting, and the rotation of cylindrical cam 35 stops.
When the rotation of cylindrical cam 35 stops and drive motor 38 when continuing further to rotate forward the pump impeller 105 beginnings rotation forward of pipe pump 37.As shown in figure 10, therefore, the nozzle of record head 28 covers by top cover 46 with the valve seat 56 of plate 61 adjacency, and pipe pump 37 aspirates.Then, the inner pressure relief of top cover 46.
Then, the ink as fluid in print cartridge 21 and 22 (see figure 1)s passes through the nozzle of record head 28 in top cover 46 internal flows.Near nozzle increase the graphite of viscosity, adhere to nozzle dust, drain into the outside by bubble of the mobile generation of print cartridge etc. by ink barrel 53a, and carry out cleaning operation.
Thereafter, when the driving of drive motor 38 stops, the suction of pipe pump 37 stops, and ink remains on top cover 46 inside.
Printing under the situation about beginning again drive motor 38 reverse rotations from state shown in Figure 10.Then, the driving force of drive motor 38 reaches (see figure 3) on the tooth 85 of cylindrical cam shown in Figure 6 35 by first to the 3rd gear 107-109, and cylindrical cam 35 and the opposite direction rotation of the direction of arrow among Fig. 6.
Then, keeper 79 moves on the 96 and the 11 surface 97 on the 7th surface 93, the 9th surface 95, the tenth surface at cylindrical cam 35 in abutting connection with ground, and down to move to the 12 and the 13 surface 98 and 99 on adjoining position.Therefore, top cover support part 47 moves down and is located at spring part 80 elastic recoverys between top cover support part 47 and the top cover 46.As a result, as shown in figure 11, by with the top cover 46 of record head 28 adjacency, the bar 73 of top cover support part 47 moves down, thus downward pressure puts on the plate 61 of top cover 46 from bar 73.Therefore, plate 61 turns clockwise simultaneously that pivot separates with plate 61 with valve seat 56 around Figure 11 axis 62a.
Because the driving force of drive motor 38 is not passed to pipe pump 37 at this moment, 106 extruded ink water pipe 53a stop to manage pump 37 by roller.Even valve seat 56 and plate 61 are separated from one another so that air vent 54 is opened, so ink barrel 53a is extruded, thereby ink leaks by air vent 54.
Drive motor 38 is rotation forward again, and the driving force of drive motor 38 is passed on the tooth 85 of cylindrical cam 35 by first to the 3rd gear 107 to 109, and rotates on the direction of cylindrical cam 35 with the arrow of Fig. 6.Then, keeper 79 is sliding on the 12 and 13 surfaces 98 and 99 of ground at cylindrical cam 35, and with the 14 surperficial 100 adjacency.Then, the tooth 85 of cylindrical cam 35 moves to not and the 3rd gear 109 (see figure 3) position contacting, and the rotation of cylindrical cam 35 stops.
When the rotation of cylindrical cam 35 stopped, the rotation of pipe pump 37 began.Therefore, as shown in figure 11, the nozzle of record head 28 is set for plate 61 by top cover 46 coverings and valve seat 56 and is separated, and manages the suction of pump 37.As a result, top cover 46 inside are depressurized.
Then, air passes through air vent 54 in top cover 46 internal flows.Then, be expelled to the outside by ink barrel 53a, carry out so-called air suction at the top cover 46 inner inks that keep.Therefore, top cover 46 inside are filled by air.
When the driving of drive motor 38 stops, suction by pipe pump 37 stops, drive motor 38 reverse rotations then, the driving force of drive motor 38 reaches on the tooth 85 of cylindrical cam shown in Figure 6 35 by first to the 3rd gear 107-109, and cylindrical cam 35 is with the direction rotation opposite with the direction of arrow.
Keeper 79 slides on the 12 and the 13 surface 98 and 99 in abutting connection with ground, and is moved downward to and first and second surfaces, 87 and 88 adjacency.Then, top cover support part 47 moves down and moves down in the mobile range outside of plate 61.As a result, in Figure 11, plate 61 is because the clockwise direction rotation around axle 62a of the elastic recovery of spring part 58a.
When keeper 79 is moved downward to lower end part 84 position contacting with cylindrical cam shown in Figure 6 35, the distance between top cover 46 and the top cover support part 47 reaches maximum and top cover 46 separates with record head 28, as shown in Figure 7.
At this moment, because the air suction is carried out, ink is not in top cover 46 inner maintenances, thereby even tape deck 11 is placed to a kind of state except level, ink can not fall from top cover 46.
Present embodiment has following advantage.
By the driving of drive motor 38, nozzle is covered by top cover 46, makes to prevent that the ink exsiccation in nozzle from becoming possibility.In addition, by driving drive motor 38 and optionally relative air opening and closing top cover 46 inside, the distance between change top cover 46 and the top cover support part 47 is possible.Therefore by using single drive motor 38 to be controlled at the exsiccation of nozzle ink inside and preventing because the opening and closing of air top cover 46 inside.So device can be simplified.
Under the situation of top cover 46 covering nozzles, by plate 61 is separated with valve seat 56, open top cover 46 extremely inner and driving tube pumps 37, can carry out the air suction.By this structure, even a kind of state that tape deck 11 is placed except level may be difficult to make that the ink leakage of top cover inside is extremely outside.
Valve seat 56 is made by flexible material.Therefore, plate 61 tightly contacts valve seat 56, thereby by plate 61 and valve seat 56 adjacency, prevents that ink leakage or air from flowing into from adjacent part is possible.This is the performance of holding device fully.
Distance between top cover support part 47 and top cover 46 is hour (see figure 10), and bar 73 is placed on top (plate 61) of valve body 58.When the distance between top cover support part 47 and the top cover 46 increased, bar 73 was from top contact plate 61 and to lower extrusion plate 61.If drive motor 38 is driven with opposite direction of rotation under the situation of top cover 46 covering nozzles, then the distance between top cover support part 47 and the top cover 46 increases, thereby plate 61 pushes from facing down and separates with valve seat 56, sets top cover 46 inside and opens to air.Driving drive motor 38 by driving tube pump 37 in the mode of rotation forward, to carry out air suction be possible.
When drive motor 38 during further with reverse rotation, it is maximum that the distance between top cover support part 47 and the top cover 46 reaches, and it is possible making top cover 46 separate with record head 28.That is, the inside of top cover 46 can be opened to air at the reasonable time of air suction, this top cover 46 with take place immediately before record head 28 separates.
Spring part 58a with a direction slurcam 61 with valve seat 56 adjacency.Therefore, when downward power put on plate 61 from above, plate 61 was set for valve seat 56 and is separated, and the inside of top cover 46 is opened to air, but air vent 54 is closed by the motive force of spring part 58a.That is, only when carrying out air when suction, downward power puts on from above on the plate 61 so that the inner setting of top cover 46 one-tenth is opened to air, and can make plate 61 and valve seat 56 adjacency.Therefore, except in the air aspiration procedure, air vent 54 can be closed by plate 61 and valve seat 56 adjacency, and then because air vent 54 is opened, can prevent that ink leakage is to outside.
When the distance between top cover support part 47 and top cover 46 was maximum, plate 61 relative top covers 46 were rotatable and bar 73 is located at the outside of the mobile range of plate 61.Even plate 61 separates with valve seat 56, described valve seat 56 is pushed downwards by bar 73, and when the distance between top cover support part 47 and the top cover 46 reached maximum, bar 73 was positioned at the mobile range outside of plate 61, thereby plate 61 is not pushed by bar 73.So, plate 61 since the motive force of spring part 58a moves up and with valve seat 56 adjacency.Therefore, when the distance between top cover support part 47 and the top cover 46 reaches maximum, promptly when top cover 46 separates with the nozzle of record head 28, close air vent 54.For example, can prevent the leakage of ink carrying out flash distillation (predetermined spray) operation, thereby apply and print irrelevant driving signal and discharge ink with the opening obstruction that prevents to make nozzle etc. by record head 28 from air vent 54.
The lower surface that inclined surface 61a that tilts in the direction of motion of top cover support part 47 and 73a are prepared in plate 61 and the upper surface of bar 73.To such an extent as to when bar 73 with such direction slurcam 61 plates 61 and valve seat 56 in abutting connection with the time, therefore, the extruding force of bar 73 is converted into the power that bar 73 self slides.Therefore need not provide driving mechanism that bar 73 is slided respectively, thus can the simplification device structure.
Bar 73 is furnished with propulsion element and self promotes with barre on glide direction 73.Even when bar 73 moves up bar 73 is slided to avoid using plate 61, bar 73 also can return back to the home position by pushing member.This can simplify and is used for driving mechanism that barre 73 slides and can the simplification device structure.
The driving force of drive motor 38 is passed to top cover support part 47 so that top cover support part 47 upwards and is down moved by cylindrical cam 35.Therefore, based on the shape of cylindrical cam 35, on the top cover support part 47/upper/lower positions can change well.And, selectively top cover 46 inside are opened and closed to separate in nozzle with top cover 46 covering nozzles or top cover 46 simultaneously to air and control easily.
Driving force from drive motor 38 is passed to cylindrical cam 35, and described cam 35 upwards and down moves top cover support part 47, and pipe pump 37 has predetermined differing.Therefore the driving to upper and lower motion and pipe pump 37 of top cover support part 47 can be finished by single drive motor 38.This causes having eliminated for the ink that prevents the nozzle place becomes dry and carries out the needs that the air suction provides a plurality of drive motors 38, structure that therefore can simplification device.
Below with reference to Figure 12-15 explanation second embodiment of the present invention.Compare with the embodiment among Fig. 1-11, comprise that the element of valve body 58, support bar 72 and bar 73 is omitted, and provide in the present embodiment with Fig. 1-11 embodiment in different air releasing devices.In the present embodiment, those parts different with the embodiment of Fig. 1-11 have been described, the part that identical symbolic representation is similar and omit their explanation.Figure 12-15 sees the side view of cover device 32 in the past from the 3rd retaining part 43 (see figure 3)s according to this embodiment.
Cover device 32 has top cover 120 and the top cover support part 121 that is engaged on the top cover 120, as shown in figure 12.Top cover support part 121 is supported on first retaining part 41 among Fig. 3 by this way so that be slidably on upper and lower direction.
The top cover 120 similar to the top cover 46 among Fig. 2 is the boxes with last side opening, and remains on the inside of top cover support part 121, and described top cover support part 121 is made approximate rectangular framework.The opening of top cover 120 have such size make it possible to cover record head 28 nozzle.Closely contact portion 51 is located at the around openings of top cover 120.
The discharge port 53 that is located at the bottom of top cover 120 is connected to ink barrel 53a and the ink that remains in the top cover 120 is discharged by ink barrel 53a.
As the air vent 54 of through hole built in the bottom of top cover 120 (see figure 5).The near-end of air hose 122 is connected to air vent 54, and the far-end of air hose 122 draws for 120 times from top cover, and by bore portion 121a from the inner support of top cover support part 121 to outer surface (the 3rd retaining part 43 sides).In addition, valve seat 123 is set as with air hose 122 becomes integral body.Air hose 122 and valve seat 123 are made by flexible material (for example synthetic rubber).
The ink that air vent 54 allows to remain in the top cover 120 is discharged, and permission air when air aspirates flows to top cover 120 to remove top cover 120 inside by air hose 122.When air passes through air hose 122 suction ventilation holes 54, can prevent that ink from leaking from air vent 54.
As shown in figure 12, axle 124 is located at the outside of top cover support part 121 highlightedly.Valve body 126 is rotationally attached on the axle 124.First spring part 125 (for example being torsion-coil spring) is connected to valve body 126.Valve body 126 comprises annular brace part 127 and the extension board 128 that extends from support section 127.Ledge 129 is around support section 127 and in the relative position of extension board 128.
When valve body in Figure 12 126 rotates in a counter-clockwise direction, valve seat 123 adjacency of the side 128a of extension board 128 and air hose 122.Therefore, air vent 54 is by air hose 122 sealings.When valve seat among Figure 12 126 rotated in a clockwise direction, the side 128a of extension board 128 separated with the valve seat 123 of air hose 122.Therefore, air flows into top cover 120 by air hose 122 and air vent 54.
Valve body 126 is promoted with counter clockwise direction by first spring part 125 usually.Therefore, do not having external force to put under the situation of valve body 126, the side 128a of extension board 128 always with valve seat 123 adjacency, the sealing air vent 54.In addition, the power left in Figure 12 puts on from the right side under the situation of ledge 129, and the elastic force of first spring part 125 is resisted in the rotation around axle 124 of extension board 128 clockwise directions, and separates with valve seat 123.So air flows into top cover 120 by air hose 122 and air vent 54.
Top cover 120 is connected to top cover support part 121 by second spring part 130.Second spring part 130 promotes top cover 120 in one direction so that top cover 120 separates each other with top cover support part 121 on upper and lower direction.
What as shown in figure 12, top cover 120 had a upwardly extending top cover 120 stops part 131.Top cover support part 121 has bonding part 132, and described bonding part 132 is opened and had a trapezoidal cross section to the end portion of top cover support part 121.When the stopping part 131 and engage of top cover 120, limited the growth of the distance between top cover 120 and top cover support part 121 with the bonding part 132 of top cover support part 121.
As shown in figure 13, dividing plate 133 is located at the bottom 41a (see figure 3) of first retaining part 41.Dividing plate 133 is arranged in (see figure 3) between top cover support part 121 and the 3rd retaining part 43.
Adjacent part 134 facing on the position of valve body 126 as extrusion built in dividing plate 133.According on the top cover support part 121/move down, adjacent part 134 selectively with the ledge 129 of valve body 126 in abutting connection with or separate.
When ledge 129 and adjacent part 134 in abutting connection with the time, ledge 129 pushes left from the right side of Figure 12 by adjacent part 134.Therefore, valve body 126 turns clockwise around axle 124.So the extension board 128 of valve body 126 separates with valve seat 123, and the inside of top cover 120 is discharged to air.
Move to topmost position by top cover support part 121, as Figure 14, adjacent part 134 is placed on the bottom of ledge 129.On the other hand,, shift to lowest positions as shown in figure 13 by top cover support part 121 there not being external force to put under the situation of top cover support part 121, adjacent part 134 be placed on ledge 129 above.
To have the action of the nozzle guard device 30 of said structure based on Figure 13-15 explanation.
At first, when carrying out the operation of cleaning operation and flash distillation operation in tape deck 11, carriage 16 moves to the original position of framework 12, as described in the embodiment of Fig. 1-11.Then, as shown in figure 13, the record head 28 of carriage 16 is in the face of the top cover 120 of nozzle guard device 30.In this state, the keeper 79 of top cover support part 121 engages with the cam groove 86 of cylindrical cam 35 shown in Figure 6 in extreme lower position, particularly, and the first surface 87 and second surface 88 adjacency of it and cam groove 86.
Distance in Figure 13 between top cover 120 and the top cover support part 121 is maximum, and the distance between top cover support part 121 and the dividing plate 133 is minimum.The adjacent part 134 of dividing plate 133 is located on the ledge of valve body 126.To such an extent as to the extension board 128 of valve body 126 is closed by air hose 122 in abutting connection with air vent 54 with valve seat 123.In this state, even when carrying out flash distillation operation and ink when being injected in the inside of top cover 120, ink does not also leak from air vent 54.
On the other hand, under the situation of carrying out cleaning operation, the keeper 79 of top cover support part 121 moves up simultaneously the second and the 3rd surface 88 and 89 with cam groove 86 in abutting connection with (see figure 6).
Then, by moving up of keeper 79, top cover support part 121 moves up and the tight contact portion 51 and record head 28 adjacency of top cover 120, covers record head 28.Record head 28 limits moving up of top covers 120 and makes spring part 121 strains that are located at top cover 120 and top cover support part 121 systems, and then is reduced in the distance between top cover 120 and the top cover support part 121.
At this moment, ledge 129 moves above the adjacent part 134 of dividing plate 133 according to moving up of top cover support part 121.Therefore, after the past scheduled time, the ledge 129 of valve body 126 and adjacent part 134 adjacency of dividing plate 133 cause that air flows into top cover 120.Thereafter, ledge 129 moves and separates with adjacent part 134 to the top of adjacent part 134.
Subsequently, the distance between top cover 120 and the top cover support part 121 reach minimum and ledge 129 be positioned at adjacent part 134 above, as shown in figure 14.At this moment, the extension board 128 of valve body 126 since the elastic recovery of spring part 125 close by air hose 122 with valve seat 123 adjacency and air vent 54.
Thereafter, the rotation of cylindrical cam 35 stops, and as shown in figure 14, the nozzle of record head 28 is by carrying out under top cover 120 coverings and the situation that is pumped in extension board 128 and valve seat 123 adjacency by pipe pump 37.When the inner pressure relief of top cover 120, the ink in print cartridge 21 and 22 (see figure 1)s flows into the inside of top cover 120 by the nozzle of record head 28.Then, the ink by near the increase viscosity nozzle, adhere to nozzle dust, be discharged to the outside and carry out cleaning operation by ink barrel 53a by bubble of the mobile generation of carriage etc.
Thereafter, when the suction by pipe pump 37 stopped, ink remained on the inside of top cover 120.
Subsequently, printing under the situation about beginning again from state shown in Figure 14, top cover support part 121 descends according to the operation as the illustrated cylindrical cam 35 of the embodiment among Fig. 1-11.Then, be located at spring part elastic recovery between top cover support part 121 and the top cover 120.
As a result, as shown in figure 15, by with the top cover 120 of record head 28 adjacency, the ledge 129 of valve body 126 move down and with adjacent part 134 adjacency.Power left puts on ledge 129 by adjacent part 134 from the right side of curve.Therefore, valve body 126 is turning clockwise among Figure 15 around the axle 124, and pivot separates with extension board 128 with valve seat 123, and air flows within the top cover 120.
Pipe pump 37 stops, and roller 106 extruded ink water pipe 53a are shown in embodiment among Fig. 1-11.Open even extension board 128 separates with valve seat 123 to set air vent 54 by air hose 122, therefore, thereby extruded ink water pipe 53a ink does not leak by air vent 54.
As shown in figure 15, by the extension board 128 that with valve seat 123 separate undertaken by the suction of managing pump 37 thereafter.And, the inner pressure relief of top cover 120.Then, air flows into the inside of top cover 120 by air hose 122 and air vent 54.Subsequently, the inks in top cover 120 inner maintenances are expelled to the outside by ink barrel 53a, and carry out so-called air suction.As a result, the inside of top cover 120 has been full of air.
Subsequently, by the pipe pump 37 suction stop after, top cover support part 121 reduces according to the operation of cylindrical cam, shown in the embodiment among Fig. 1-11.Therefore, ledge 129 relative dividing plates 133 move up, and since the elastic recovery extension board 128 of spring part 125 around Figure 12 axis 124, be rotated counterclockwise, and with valve seat 123 adjacency.When the distance between top cover 120 and the top cover support part 121 reached maximum, top cover 120 separated with record head 28, as shown in figure 13.Adjacent part 134 and separates with ledge 129 on ledge 129 and location, the outside of the mobile range of ledge 129.
At this moment, carry out air suction, ink does not remain on the inside of top cover 120, thereby even tape deck 11 is located at the state except level, ink is not also from the internal leakage of top cover 120.
Below with reference to Figure 16-23 explanation third embodiment of the present invention.Should be noted that identical allocation of symbols gives the similar part of tape deck among Fig. 1 11 and omit their explanation.
As shown in figure 16, cylindrical cam 234 is supported on the retaining part Kd inside of shell 31 by support section Ke, and the described support section Ke heart therein is outstanding.Cylindrical cam 234 is rotatable around the C of rotating shaft center of support section Ke.Driven gear 242 is located at above the cylindrical cam 234.Driven gear 242 is the spur gears with a plurality of tooth 242a, and described a plurality of tooth 242a are all making around the circumferential surface with pre-constant pitch a.Driven gear 242 always with the tooth 110a of the 4th gear 110 engagement ground rotation.Compression spring 250 is located between driven gear 242 and the top cover 44.An end portion of compression spring 250 is to top cover 44 extruding, and another end portion is to driven gear 242 extruding, therefore downwards towards cylindrical cam 234 extruding driven gears 242.Therefore, the moment of torsion from driven gear 242 is passed to cylindrical cam 234 by frictional force.
Part with annular has gear 251 to be located at the last end portion of the cylindrical cam 234 between cylindrical cam 234 and the driven gear 242.A plurality of tooth 251a have around half of circumferential surface of gear 251 built in part.A plurality of tooth 251a with identical tooth pitch a be made as driven gear 242 and with the tooth 110a of the 4th gear 110 engagement.The upside of the tooth 110a of the 4th gear 110 and the tooth 242a of driven gear 242 engagement, and downside has the tooth 251a of gear 251 to mesh with part simultaneously.
Cam groove 252 is on the circumferential surface of cylindrical cam 234.As shown in figure 22, cam groove 252 comprises the first targeting part 252a, the second targeting part 252b and the 3rd targeting part 252c, the circumferencial direction of described first targeting part 252a edge in the bottom of cam groove 252 extends, the described second targeting part 252b extends upward obliquely from the first targeting part 252a, and described the 3rd targeting part 252c extends along the parallel direction of the circumference of the second targeting part 252b.To Figure 21, have the rotation confinement groove 253 and the arc bottom of about 200 ° of central angles as Figure 20 (a) built in cylindrical cam 234.By the determined angle of line of first and second end portion 253a of rotation confinement groove 253 and the C of rotating shaft center that 253b is connected to support section Ke is spent greater than 180.Stopping element 254 engages with rotation confinement groove 253 slidably.Stop element 254 and be fixed to the bottom of the retaining part Kd of shell 31.Therefore, when cylindrical cam 253 rotation, stop all adjacency of two terminal 253a of element 254 and rotation confinement groove 253 (seeing that Figure 20 (a) is to Figure 21) and 253b, therefore limited the rotation of cylindrical cam 234.
Below, describe the structure of cylindrical cams 234 and the driven gear 242 coaxial in detail based on Figure 22 and 23 with cylindrical cam 234.Cylindrical cam 234 comprises that first groove forms element 255, second groove forms element 256 and part has gear 251.First groove forms element 255 and second groove formation element 256 is equivalent to revolving part.
First groove forms element 255 and has dish type base part 255a.Rotation confinement groove 253 is built in the bottom of base part 255a.Wall part 255b extends upward from the top of base part 255a.Wall part 255b has the shape of cylinder and some is cut off.Cut-out 257 is in wall part 255b, and described wall part 255b is positioned at above the first end portion 253a of rotation confinement groove 253.Cut-out 257 extends from the top of base part 255a with being inclined upwardly.The first step part S2 (seeing Figure 20 (b)) that extends to driven gear 242 is built in wall part 255b, described wall part 255b be positioned at rotation confinement groove 253 the second end portion 253b above.
As shown in figure 23, the column part 255c that also separates with wall part 255b with one heart with preset distance forms the center of element 255 built in first groove.Through hole h is built in the center of column part 255c and the support section Ke penetrated through via holes h of shell 31.
Second groove forms element 256 and has column part 256a.Column part 256a is assemblied in first groove and forms among the wall part 255b and the gap between the column part 255c of element 255.At the loop section 256b that axially is shorter than column part 256a integrally built in the circumferential surface of column part 256a.Extension 258 is located on the part of loop section 256b.The axial length of extension 258 is shorter than the axial length of column part 256a.Extension 258 has sloping portion, and described sloping portion has the inclination angle identical with the sloping portion of cut-out 257.The sloping portion of extension 258 inserts the cut-out 257 that first groove forms element 255.In addition, second step part S1 (seeing Fig. 6 (b)) is on the part of the circumferential surface of loop section 256b.
Therefore, when the circumferential section 256a that forms element 256 when second groove inserted first groove and forms the wall part 255b of element 255 and the gap between the column part 255c, first groove forms element 255 can not form element 256 rotations by relative second groove.When the cut-out 257 of first groove formation element 255 is inserted in the extension 258 of second groove formation element 256, between extension 258 and base part 255a, form the gap.This gap equals the first targeting part 252a.The gap also forms between the sloping portion of element 256 built in the sloping portion and second groove of cut-out 257.This gap equals the second targeting part 252b.Shown in Figure 20 (b), the step part S2 that first groove forms element 255 become form element 256 with second groove step part S1 on same horizontal plane, form the last wall part of the 3rd targeting part 252c.That is, when first groove formation element 255 was connected to second groove formation element 256, cam groove 252 was determined and forms.Rotation confinement groove 253 is in the scope of horn shape, and the scope of described horn shape is to determine with cam groove 252 and the scope of the angle that the angles that form are close.Therefore, according to this embodiment, cylindrical cam 234 is rotatable in the horn shape scope only.
A pair of recessed portion 259 is located at the loop section 256b that second groove forms element 256.In addition, annular groove 256c forms the end of going up of element 256 built in second groove with and column part 256a radially outward inside radially from the position of two recessed portions 259.
As shown in figure 21, when the first end portion 253a that stops element 254 and rotation confinement groove 253 in abutting connection with the time, promptly when the beginning cleaning operation, the tooth 251a in a plurality of tooth 251a is located on the position of approaching face to the 4th gear 110, and described tooth 251a is positioned on the end portion E.When the 4th gear 110 rotated with direction r1, the part that meshes with the 4th gear 110 had gear 251 to rotate with direction r2 simultaneously.
As shown in figure 22, the pair of protruding portions 260 of giving prominence to downwards is located at part with position respect to one another has on the gear 251.The ledge 260 and second groove form 259 engagements of recessed portion separately of element 256 separately.Particularly, when ledge 260 during with recessed portion 259 engagements separately, the gap of half tooth pitch that equals tooth 251a is between the wall of the surface of the circumference of ledge 260 and recessed portion 259, the surface of the circumference of described ledge 260 extends axially, and the wall of the female part 259 is to that circumferential surface and extend axially.That is, part has gear 251 to form the tooth pitch rotation of element 256 by tooth 251a by relative second groove.
As shown in figure 23, to such an extent as to column part 242b extend vertically built in the core of driven gear 242 by this way.Compression spring 250 (seeing Figure 16) is assemblied in the last end portion of column part 242b.The lower end of column part 242b partly is equipped in the annular groove 256c of second groove formation element 256.Be located between driven gear 242 and the column part 242b than major diameter part 242c.Being assemblied in part than major diameter part 242c has in the endoporus of gear 251.Therefore, driven gear 242 relative cylindrical cams 234 are rotatable and rotation around the C of rotating shaft center of cylindrical cam 234.
Shown in Figure 17-19, nozzle guard device 30 has wiping arrangement 235.Wiping arrangement 235 has the wiper support member 261 that is provided with along arrow y direction.Wiper support member 261 is supported on the shell 31 by this way so that be movably on the upper and lower direction of shell 31, and is immovable in the direction of arrow y.Holding element 262 extends from the bottom of the side of wiping support component 261 according to the direction of arrow y to be made, shown in Figure 16,19,20 (a) and 20 (b).As Figure 20 (a) and 20 (b), keeper 262a extends and makes from the end of holding element 262 with the direction of arrow x.Keeper 262a is assemblied in the cam groove 252 of cylindrical cam 234 slidably.
When cylindrical cam 234 during by drive motor 38 rotation, holding element 262 moves up and down by keeper 262a, and described keeper 262a slides on targeting part 252a, the 252b of cam groove 252 and 252c.That is, when keeper 262a slides on the first targeting part 252a, keeper 262a is directed to the position of non-action.When keeper 262a slided on the 3rd targeting part 252c, holding element 262 was directed to the position of action.In addition, when keeper 262a slided on the second targeting part 252b, holding element 262 was directed to the position between non-operating position and the operating position.
Particularly, shown in Figure 16,19 and 20 (a), when stop the element 254 and first groove form element 255 rotation confinement groove 253 the first end portion 253a in abutting connection with the time, the 4th gear is having the end portion E place of gear 251 relative with tooth 251a in part, and keeper 262a is positioned at the end wall adjacency with the first targeting part 52a of cam groove 252.Therefore, in this state, holding element 262 is positioned at the position of non-action.When the state lower edge direction r1 rotation from then on of the 4th gear 110, driven gear 242 and part have gear 251 to rotate with direction r2.Their rotation causes that cam groove 252 rotation of cylindrical cam 234 and keeper 262a slide to contact the 3rd targeting part 252c by the second targeting part 252b from the first targeting part 252a of cam groove 252.By the motion of keeper 262a, wiping support component 261 moves up and slides when contacting the 3rd targeting part 252c as keeper 262a, reaches the position of action.When the first end portion 253b that stops element 254 rotation by cylindrical cam 234 and rotation confinement groove 253 in abutting connection with the time, shown in Figure 20 (b), last wall (step part s1, the s2) adjacency of the 3rd targeting part 252c of keeper 262a and cam groove 252.When keeper 262a by the second targeting part 252b when the first targeting part 252a of cam groove 252 moves to the 3rd targeting part 252c, part has gear 251 and 110 engagements of the 4th gear, but, arrive at keeper 262a before the last wall of the 3rd targeting part 252c, part has gear 251 not mesh with the 4th gear 110.
When drive motor 38 when the state shown in Figure 20 (b) oppositely rotates to state shown in Figure 20 (a), keeper 262a by the second targeting part 252b to slide to contact the first targeting part 252a from the 3rd targeting part 252c with the reverse order of said sequence.As a result, reduce wiper support member 261 to non-operating position from operating position.
Upwardly extending polishing piece 263 is fixed to the top of wiper support member 261 in the side of arrow y.Polishing piece 263 is made by elastomeric material (for example rubber).The terminal 263a of polishing piece 263 wipes with the ink that handle adheres to record head 28 with the crooked and such wiping of the direction of arrow x.That is, when wiper was made element 261 and is moved upward to operating position, the terminal 263a of polishing piece 263 was pressed to record head 28, and described terminal 263a wipes out above following process and an ink that adheres on the record head 28.
With reference to the action of Figure 16 to 20 (b) and Fig. 1 explanation according to the tape deck 11 of present embodiment.
Finish and will carry out under the situation of cleaning device of record head 28 in printing, tape deck 11 driven bracket motor 18 move to the position of carriage 16 in the face of top cover 46 to carriage 16 along the direction of arrow x.At this moment, the keeper 262a of wiper support member 261 is positioned at the first targeting part 252a place of cam groove 252, shown in Figure 16,19 and 20 (b).Therefore, though when carriage 16 with direction x by polishing piece 263 above, the terminal 263a of polishing piece 263 also not with record head 28 adjacency of carriage 16.Part has the tooth 251a of the end portion E of gear 251 to face the 4th gear 110.In addition, stop element 254 and the first end portion 253a adjacency of rotating confinement groove 253.
When carriage 16 reached position towards top cover 46, tape deck 11 stopped driven bracket motor 18 and rotary driving motor 38 forward.When drive motor 38 rotated forward, driven wheel 38a rotation and its moment of torsion were passed to the 4th gear 110 by each first to the 3rd gear 107 to 109.The 4th gear 110 rotates with direction r2 with direction r1 rotation and with the driven gear 242 of the 4th gear 110 engagements.When driven gear 242 beginnings are rotated on direction r2, driven gear 242 extruding downwards and driven gear 242 slide to have gear 251 to contact with part, thereby the moment of torsion of driven gear 242 is passed to part by frictional force gear 251 is arranged, thereby part there is gear 251 rotation as possible.In addition, the tooth 251a that gear 251 is arranged when part is when the position of facing with the 4th gear 110, and part has the tooth 251a of gear 251 and the 4th gear 110 to mesh.
As a result, in case receive the moment of torsion of the 4th gear 110, part has gear 251 to rotate with direction r2.When part has gear 251 rotations, part have relative second grooves of gear 251 form elements 256 rotations up to its ledge 260 with the wall adjacency of direction r2 and recessed portion 259, form element 255 and second groove with first groove then and form element 256 and rotate.That is, cylindrical cam 234 is with direction r2 rotation and recessed behaviour's 52 rotations of cam.Therefore, the keeper 262a of wiping support component 261 reaches the 3rd targeting part 252c by the second targeting part 252b from the recessed behaviour's 252 of cam the first targeting part 252a, and the described first targeting part 252a is assembled, and causes that polishing piece 263 moves up.
When keeper 262a reached the 3rd targeting part 252c and the about half cycle of cylindrical cam 234 rotations, part had the tooth 251a of gear 251 not mesh with the 4th gear 110.When driven gear 242 keeps rotation, shown in driven gear 242 slide to have gear 251 contact with part, the moment of torsion of driven gear 242 is converted to frictional force and is passed to partly gear 251, causes that cylindrical cam 234 is further rotated.And when stopping the end portion 253b adjacency of element 254 with the rotation confinement groove 253 of cylindrical cam 234, shown in Figure 20 (b), the rotation of cylindrical cam 234 on direction r2 stops.
Top cover support part 47 is moved up by hoisting mechanism, and described hoisting mechanism is transmitted the torque drive of coming by driven gear 242, and top cover 46 is directed to operating position and tightly contacts with record head 28.Then, pipe pump 233 produces negative pressure by the driving of the 3rd gear 109 in the space of closely cutting out of record head 28.Therefore, full-bodied ink is discharged in the waste liquid tank 40, and described high viscosity causes the spray nozzle clogging of record head 28.
Thereafter, when drive motor 38 was converted into opposite rotation, the 4th gear 110 was with the direction rotation opposite with direction r1.This causes that driven gear 242 is with the direction rotation opposite with direction r2.The torque axis of driven gear 242 changes frictional force into, and described frictional force is passed to part a gear 251, thus part have gear 251 not with the state of the 4th gear 110 engagements under, it is with the direction rotation opposite with direction r2.At this moment, part have gear 251 rotation up to ledge 269 on the direction opposite with direction r2 with the wall adjacency of recessed portion 259, then, form element 255 and second groove forms element 256 rotations with first groove.That is, cylindrical cam 234 is with the direction rotation opposite with direction r2.
Keeper 262a by being positioned at the holding element 262 on the 3rd targeting part 252c and at the polishing piece 263 of operating position, drive motor 38 is stopped.At this moment, top cover support part 47 is reduced by hoisting mechanism and top cover 46 is positioned at non-operating position, thereby carriage 16 is movably.Then, tape deck 11 driven bracket motor 18 are with the side of arrow x above top cover 46 movable support bracket 16 in the opposite direction.Then, carriage 16 and polishing piece 263 move in the opposite direction in abutting connection with the side with arrow x also, thus polishing piece 263 by carriage 16 bendings, described carriage 16 moves and its terminal 263a and record head 28 adjacency.When carriage 16 further moved with the direction of arrow x, polishing piece 263 relative record heads 28 moved and clean by this way the whole surface that makes it possible to wiping record head 28.
When record head 28 is also finished the cleaning of record head 28 by polishing piece 263 by this way through polishing piece 263, tape deck 11 reverse rotation again.Therefore, the 4th gear 110 again with the direction opposite rotation with direction r1 and with the driven gear 242 of the 4th gear 110 engagements with the direction rotation opposite with direction r2, in case thereby the moment of torsion of driven gear 242 is received, part has gear 251 with the direction rotation opposite with direction r2.Part have the tooth 251a of gear 251 rotate in the face of the position of the 4th gear 110 with as far as possible and 110 engagements of the 4th gear.
The tooth 242a of driven gear 242 has under the situation of tooth 251a alignment of gear 251 with part at this moment, promptly, part have the tooth 251a of gear 251 be not glossily with the situation of the tooth 110a engagement of 4 wheel driven moving gear 110 under, the tooth 251a that part has a gear 251 is promoted by the moment of torsion of the tooth 110a of the 4th gear 110.At this moment, part has the load of gear 251 to put on part gear 251 and the 4th gear 110 is arranged.Gapped between the recessed portion 259 of ledge 260 that gear 251 is partly arranged and second groove formation element 256, and being installed in than major diameter part 242c of driven gear 242 partly has gear 251.Therefore, though when have in part second groove under the gear 251 form element 256 and part have on the gear 251 driven gear 242 just when rotated, part has gear 251 also can stop separately.Promptly, part has gear 251 relative driven gears 242 to rotate with direction r1, described driven gear 242 always forms element 256 engagements with the 4th gear 110 and second groove and with the direction rotation opposite with direction r1, described second groove forms element 256 owing to internal force rotates.
Therefore, have only part to have gear 251 to stop temporarily and adjusts to mesh with the tooth 110a of the 4th gear 110 glossily.When part had the tooth 242a alignment of gear 251 and driven gear 242, it meshed with the 4th gear 110 glossily.Therefore, part has gear 251 to receive from the moment of torsion of the 4th gear 110 and with the direction rotation opposite with direction r1 by the moment of torsion of tooth 251a and driven gear 242 located in the above.When cylindrical cam 234 has the rotation of gear 251 along with part and when rotating, the keeper 262a that is assemblied in the 3rd targeting part 252c of cam groove 252 moves and is directed to the first targeting part 252a along the second targeting part 252b of cam groove 252.Therefore, the polishing piece 263 of wiping arrangement 235 moves down and keeper 262a reaches the first targeting part 252a such as Figure 16,19,20 (a) and 21 of cam groove 252.Stop element 254 and the first end portion 253a adjacency of rotating confinement groove 253, the rotation of restriction cylindrical cam 234, thus cylindrical cam 234 stops at the rotation on the direction opposite with direction r1.Thereafter, the rotation of drive motor 38 stops.
Present embodiment has following advantage.
When keeper 262a moves to the 3rd targeting part 252c by the second targeting part 252b or when the 3rd targeting part 252c moved to the first targeting part 252a by the second targeting part 252b, part had gear 251 and 110 engagements of the 4th gear and reception driving force from the first targeting part 252a.So, even ink adheres to part gear is arranged, increase load, when moving to the second targeting part 252b, keeper 262a also can receive moment of torsion reliably from the 4th gear 110.Therefore rotational circle cylindricality cam 234 and guarantee that the lifting of polishing piece 263 is possible reliably.
Being located at part has driven gears 242 above the gear 251 to be compressed spring 250 to press to part gear 251 is arranged, thereby the torque axis of driven gear 242 changes into frictional force and have frictional force to be passed to part gear 251 is arranged.Therefore, when part had gear 251 reverse rotations, even separate with the 4th gear 110, the revolving force that in a single day cylindrical cam 234 receives from driven gear 242 also was rotated, and part has gear 251 to try one's best and 110 engagements of the 4th gear.At this moment, cylindrical cam 234 continues to receive the moment of torsion of driven gear 242, thereby when gear 251 is partly arranged not glossily with 110 engagements of the 4th gear, whether no matter second groove forms element is rotated, part has gear 251 also to stop, and described second groove forms the frictional force just rotation of element reception in a single day from driven gear 242.That is, when part had gear 251 relative second grooves to form element 256 rotations, by little load, part had gear 251 to mesh with the 4th gear 110 glossily.
Part has gear 251 to rotate by the gap between recessed portion 259 and ledge 260 relative to second groove formation element 256.Therefore, by there not being smooth part that gear 251 is arranged with 110 engagements of the 4th gear, part has gear 251 to be pushed according to the rotation of the 4th gear 110, and part has gear 251 to move relative to the other element (first and second grooves form element 255 and 256) of cylindrical cam 234.Therefore, no matter how first groove forms motion that element 255 and second groove form element 256, drive motor 38 all is stopped, thereby and partly has the position adjustment part like this of the tooth 251a of gear 251 to have gear 251 to mesh by the moment of torsion and the 4th gear 110 of the 4th gear 110.At this moment, part has the load of gear 251 to put on separately on the 4th gear 110, and it is not whole load of cylindrical cam 234 that described part has the load of gear 251.Therefore, part has gear 251 to mesh with the 4th gear 110 glossily by little load.Therefore, in part gear 251 is arranged, when part has gear 251 and the 4th gear to mesh glossily, partly have the gear 251 can life-saving when not applying big load.
As shown in figure 23, relatively have the gear of dish type, annulus has gear 251 to become lighter.Therefore, can be so that part has the load of the engagement of gear 251 and the 4th gear 110 to become less.So part have gear 251 can be glossily the 4th gear 110 engagements and can have the long life-span.
It is rotatable that part has gear 251 relative driven gears 242.Therefore, so that part when gear 251 is arranged with 110 engagements of the 4th gear, no matter the rotation status of driven gear 242 how, partly has gear 251 to be stopped when the position of adjusting tooth 251a.Therefore, the load when part has gear 251 and 110 engagements of the 4th gear can reduce.
As shown in figure 22, the tooth square that part has the tooth 251a of gear 251 is set in the gap between ledge 260 and the recessed portion 259, have a tooth square ground rotation thereby part has gear 251 to form element 256 with second groove.Gear 251 is arranged to have the mode of a tooth square of the tooth 251a of gear 251 to rotate as fruit part less than part, then no matter the position how, can both adjustment member have gear 251 with the tooth 110a engagement of the 4th gear 110.Because the distance between ledge 260 and recessed portion 259 is the loss that second groove formation element, 256 anglecs of rotation of gear 251 are relatively partly arranged, so the gap is the smaller the better.Therefore, by apart from setting section the tooth square of the tooth 251a of gear 251 being arranged between ledge 260 and the recessed portion 259, anglec of rotation loss can minimize and not apply bigger load, and part has the tooth 251a of gear 251 can be glossily and the tooth 110a engagement of the 4th gear 110.
By less load, the part of cylindrical cam 234 has the gear 251 can be glossily and the tooth 110a engagement of the 4th gear 110, and in case the driving force that receives the 4th gear 110 rotational circle cylindricality cam 234 reliably just.Therefore, insert keeper 262a in the cam groove 252 and can be directed to each targeting part 252a, 252b, 252c to carry out the lifting of wiper support member 261 for a long time reliably with guaranteeing, described cam groove 252 is in cylindrical cam 234.So record head 28 can be by polishing piece 263 for a long time by wiped clean reliably, and nozzle guard device 30 can carry out enough cleaning operations for a long time.
When nozzle guard device 30 carried out enough cleaning operations for a long time, record head 28 can keep good state for a long time.Therefore, tape deck 11 can be discharged ink at the fixed time and be printed picture clearly from print cartridge 21 and 22.
When part has ledge 260 on the gear 251 to be assemblied in the recessed portion 259, the female part 259 forms in the element 256 built in second groove, and part has gear 251 to be located in the cylindrical cam 234.Therefore, thus part has gear 251 to be located on the cylindrical cam 234 part by simple structure that to have gear 251 relative second groove in preset range to form element 256 be rotatable.
The cam groove 252 of guide-localization spare 262a is on cylindrical cam 234, and described cam groove 252 is determined the raised position of polishing piece 263 on upper and lower direction.Therefore be possible by keeper 262a by the polishing piece 263 that rotates and upgrades of cylindrical cam 234 with simple structure.
Driven gear 242 is provided with like this so that with part gear 251 calibrations are arranged, described driven gear 242 and 110 engagements of the 4th gear and rotation around the C of rotating shaft center.This can reduce the required distribution space of driven gear 242.Thereby the 4th gear 110 has such shape upside and has identical diameter with downside, and the downside of described the 4th gear 110 has gear 251 engagements with part, the upside of described the 4th gear 110 and driven gear 242 engagements.In other words, thus the 4th gear 110 need not be made into the complicated shape structure can be simplified.
Thereby the rotation confinement groove of cylinder 234 253 limits cylindrical cam 234 cylindrical cams 234 so not in the preset range inner rotary.Therefore, even cylindrical cam 234 receives the moment of torsion of driven gear 242, also not outside preset range and mistakenly, rotate.Therefore, even drive motor 38 keeps rotation with driving tube pump 233, wiper support member 261 also can be raised at the fixed time.
Below will be based on Figure 24-26 explanation fourth embodiment of the present invention.Figure 24 to 26 is explanation has gear 271 according to the part of present embodiment upward views.
As the part in the embodiment shown in Figure 16-23 gear 251 is arranged, the part with annular has gear 271 to be located at second groove formation element 256 of cylindrical cam 234 like this to rotate than direct join with driven gear 242 around the C of rotating shaft center.Tooth 271a has on the only only about half of circumferential surface of gear 271 built in part.Tooth 271a make with the tooth square a identical with driven gear 242 and with 110 engagements of the 4th gear.The upside of the tooth 110a of the 4th gear 110 and the tooth 242a of driven gear 242 engagement and while downside have the tooth 271a of gear 271 to mesh with part.
Two cut- out 272a and 272b have on the circumferential section of gear 271 so that two end portion (three tooth 271a of two terminal part offices) of corresponding teeth 271a respectively built in part in tooth 271a by this way radially.Cut- out 272a and 272b allow these three tooth 271a in the direction bending that the axis of rotation C of gear 271 is arranged with part.Particularly, when part has gear 271 and the engagement of the 4th gear 110, when the groove of the groove of the tooth 110a of the 4th gear 110 and tooth 271a in abutting connection with the time, cut- out 272a and 272b cause that tooth 271a is towards the center curvature that gear 271 is partly arranged.
Tooth 271a faces the 4th gear 110 built in such position to be similar in cleaning operation, described tooth 271a is positioned at the end portion E that part shown in Figure 24 has gear 271, stops element 254 and the end portion 253a adjacency of rotating confinement groove 253 in described cleaning operation.That is, when the 4th gear 110 rotated with direction r1, part has the tooth 271a of gear 271 just to mesh soon and part has gear 271 to rotate with direction r2.
Part has gear 271 to have two ledges 273, and the part of described two ledges, 273 structure pictures in the embodiment of Figure 16-23 has the ledge 260 of gear 251.Each ledge 273 meshes with the relevant recessed portion 259 that second groove forms element 256.That is, part has gear 271 to form the tooth pitch a rotation of element 256 with tooth 271a by relative second groove, as the embodiment in Figure 16-23.
By said structure, driven gear 242 has gear 271 alignments with part, thus driven gear 242 cylindrical cam 234 rotations and rotation around the C of rotating shaft center of cylindrical cam 234 relatively.
Below declaratives there is the action of gear 271.
When drive motor 38 did not convert opposite rotation to the state of the 4th gear 110 engagements from gear 271 is partly arranged, the 4th gear 110 was with the direction rotation opposite with direction r1, as shown in figure 24.In case by the moment of torsion of driven gear 242 receptions the 4th gear 110, part has gear 271 with the direction rotation opposite with direction r2.Part have the tooth 271a of gear 271 to rotate to towards the position of the 4th gear 110 as far as possible and with its engagement.
Have on top, position towards the 4th gear 110 groove of gear 271 and the 4th gear 110 tooth 110a groove in abutting connection with but under the situation of not alignment at this moment, the cut-out 272b of tooth 271a by as shown in figure 25 is towards axis of rotation C bending.By the rotation of the 4th gear 110, the groove of the groove of tooth 271a and tooth 110a begins to move and tooth 271a is final and tooth 110a engagement, described tooth 110a and tooth 271a adjacency.And part has gear 271 to rotate with the opposite direction of direction r2 as shown in figure 26.
When the cut part 272b of tooth 271a institute was crooked, part had gear 271 to mesh with the 4th gear 110 glossily.
Except the advantage of the embodiment among Figure 16-23, present embodiment has following advantage.
Two cut- out 272a and 272b have on the circumferential section of gear 271 built in part.Even when gear 271 and 110 engagements of the 4th gear are partly arranged, the groove adjacency of the groove of tooth 271a and tooth 110a, they also can crooked tooth 271a, therefore, reduced in the load that partly has on gear 271 and the 4th gear 110, thereby smooth engagement can take place.As a result, part has gear 271 and the 4th gear 110 to have the long life-span.In addition, cut- out 272a and 272b can provide part that the tooth 271a of gear 271 is arranged neatly, do not need labyrinth.
When the part of cylindrical cam 234 has gear 271 to make tooth 271a crooked, it can mesh with the 4th gear 110 glossily by less load, and by this engagement, part has gear 271 can receive the driving force of the 4th gear 110 and makes cylindrical cam 234 rotations reliably.Therefore guarantee that the keeper 262a in cylindrical cam 234 is directed to each targeting part 252a in the cam groove 252,252b, 252c are possible with the lifting of carrying out for a long time wiping support component 261 reliably being inserted in.Therefore, nozzle guard device 30 can carry out enough cleaning operations for a long time.
Below based on Figure 27-32 explanation tape deck 311 according to a fifth embodiment of the invention.Tape deck 311 at present embodiment has hoisting mechanism and cylindrical cam 334, and described hoisting mechanism promotes guide 15, the structure of the tape deck 11 among the comparison diagram 16-23, and described cylindrical cam 334 structurally is different from cylindrical cam 234.
As shown in figure 27, tape deck 311 has platen 313, and described platen 313 is along the extension of arrow x direction and have smooth surface.Platen 313 is supporters that support object T (for example common paper or CD-ROM).
Tape deck 311 has unshowned thickness transducer near unshowned drive roller, described unshowned drive roller is driven by feed motor 14.Whether thickness transducer is surveyed the object T that infeeds tape deck 311 thicker.
Supported hole 320a is in carriage 16, and described carriage 16 is located in the tape deck 311 shown in Figure 28 (a) and 28 (b).The guide 15 that is parallel to synchronous belt 17 placements inserts among the supported hole 320a.Carriage 16 is moved back and forth along the direction of arrow x by the driving of tray motor 18 by synchronous belt 17 and is directed to guide 15 simultaneously.
Then, based on Figure 28 (a) and 28 (b) guiding mechanism 300 is described, described guiding mechanism 300 comprises the hoisting mechanism of guide 15 and guide 15.Figure 28 (a) illustrates the carriage 16 at lower position, and Figure 28 (b) illustrates the carriage 16 that is promoted to upper position.
Guiding mechanism 300 comprises guide 15, be fixed to carriage 16 supported hole 320a outer circle column piece 325a and rotatably be supported on central shaft 326 on the outer circle column piece 352a.Two eccentric shafts 327 that depart from the axle center of central shaft 326 are fixed to the end portion of corresponding guide 15.Two eccentric shafts 327 all rotatably are supported on the framework 12 (sees Figure 27).Drive link 328 is fixed on the right avertence axle 327.Transmission groove 328a is in drive link 328.
Reversible motor M is fixed on the framework shown in Figure 27 12.Reversible motor M is based on the thickness of the signal of thickness transducer or object T and drive.Shown in Figure 28 (a) and 28 (b), the immediate end of armed lever 329 is fixed on the rotating shaft Ma of reversible motor M.Armed lever 329 is rotatable along direction r.Armed lever 329 slidably and rotatably is engaged on the transmission groove 328a of drive link 328.When rotating to, reversible motor M make armed lever 329 when direction r rotates, two eccentric shaft 327 rotations and be fixed to central shaft 326 on the eccentric shaft 327 and around eccentric shaft 327, rotate and be lowered.As a result, carriage 16 is raised, and changes from platen 313 to record head 28 distance P G1, PG2.
As shown in figure 29, structurally be different from the cam groove 355 of cam groove 252 of the cylindrical cam 234 among Figure 16 in the circumferential surface of cylindrical cam 334.Cam groove 355 comprises returns targeting part 356, action targeting part 357 and standby targeting part 358, as shown in figure 30.The line OC (seeing Figure 21) that supposes the center that stops element 254 is connected to the axis of rotation C of peripheral cam 334 is 0 °, as shown in figure 30, then returns targeting part 356 and extends along the circumferencial direction of the lowermost portion of cylindrical cam 334.Return targeting part 356 in angle θ ≈-9 °～+ 6 ° scope.
As shown in figure 30, action guide part 357 is in the scope of 6 °～56 ° of angle θ ≈.Action targeting part 357 has the first sloping portion 357a and primary importance targeting part 357b, described action targeting part 357 extends from returning targeting part 356 with being inclined upwardly, and described primary importance targeting part 357b along the circumferential direction extends from the first sloping portion 357a.Primary importance targeting part 357b is in the position of 25 ° of angle θ ≈.In addition, action guide part 357 has the second sloping portion 357c and second place targeting part 357d, the described second sloping portion 357c extends from primary importance targeting part 357b with being inclined upwardly, and described second place targeting part 357d along the circumferential direction extends from the second sloping portion 357c.Second place targeting part 357d is in the position of 50 ° of angle θ ≈.Therefore, when cylindrical cam 334 from position shown in Figure 30 when direction r2 (seeing Figure 21) rotates, primary importance targeting part 357b just in time reaches and stops above the element 254; When about 50 ° of cylindrical cam 334 rotation, second place targeting part 357d just in time arrive stop element 254 above.That is, action targeting part 357 has the position that primary importance targeting part 357b and second place targeting part 357a are used as the action of differing heights.
Standby targeting part 358 is in the scope of 56 °～200 ° of angle θ ≈.When the part 253b that stops element 254 and the rotation confinement groove 253 of cylindrical cam 334 in abutting connection with the time, the end portion of standby targeting part 358 is positioned.That is, cam groove 355 is in approximately identical with the scope that rotation limited of cylindrical cam 334 scope.Standby targeting part 358 comprises standby sloping portion 358a and reserve piece 358b, described standby sloping portion 358a dips down tiltedly from the second place targeting part 357d of action targeting part 357 and extends, and described reserve piece 358b along the circumferential direction extends from the lower end of standby sloping portion 358a.
As shown in figure 29, when sliding on keeper 262a is returning the reserve piece 358b of targeting part 356 or standby targeting part 358, keeper 262a is directed to the non-operating position in extreme lower position.When keeper 262a slided on the primary importance targeting part 357b of action targeting part 357, holding element 262 was directed to the primary importance of action.When keeper 262a slided on second place targeting part 357d, holding element 262 was directed to second operating position that is higher than first operating position.In addition, when keeper 262a slided on the first sloping portion 357a of action targeting part 357, holding element 262 was directed to primary importance targeting part 357b from retracted position.When keeper 262a slided on the second sloping portion 357c of action targeting part 357, holding element 262 was directed to second place targeting part 357d from primary importance targeting part 357b.In addition, when sliding on the standby sloping portion 358a of holding element 262 at standby targeting part 358, holding element 262 is directed to the reserve piece 358b of standby targeting part 358 from the second place targeting part 357d of action targeting part 357.
When the end portion 253a that stops element 254 and the rotation confinement groove 253 of cylindrical cam 334 in abutting connection with the time (seeing Figure 21), keeper 262a is positioned on the beginning end portion S adjoining position of returning targeting part 356 with cam groove 355.In this state, holding element 262 is positioned on the non-operating position.From then on state is when direction r1 rotates when the 4th gear 110, and driven gear 242 and part have gear 251 to rotate along direction r2.Therefore, rotation of the cam groove 355 of cylindrical cam 334 and keeper 262a successively the standby sloping portion 358a of the second place targeting part 357d by the first sloping portion 357a, the second oriented part 357c and action targeting part 357 and standby targeting part 358 slide into reserve piece 358b and contact from the targeting part 356 of returning of cam groove 355.
When keeper 262a slides into and moves the first sloping portion 357a of targeting part 357 when contacting to primary importance targeting part 357b, wiper support member 261 moves up.When cylindrical cam 334 rotated about 25 °, wiper support member 261 reached first operating position, slides into primary importance targeting part 357b in the described first operating position wiper device 261 to contact.When keeper 262a slides into when contacting with the second sloping portion 357c to second place targeting part 357d from primary importance targeting part 357a, wiper support member 261 moves up.When cylindrical cam 334 rotated about 200 °, wiper support member 261 reached second operating position, and at described second operating position, wiper support member 261 slides into second place targeting part 357d and contacts.
When cylindrical cam rotates about 200 ° and the first end portion 253b that stops element 254 and rotation confinement groove 253 in abutting connection with the time, the end portion E adjacency of the reserve piece 358b of the standby targeting part 358 of keeper 262a and cam groove 355.Part has gear 251 and the 4th gear 110 only to mesh by action targeting part 357 from returning in the scope that targeting part 356 to standby targeting part 358 moves of cam groove 355 at keeper 262a.
When drive motor 38 rotated inversely, keeper 262a slid into and returns targeting part 356 and contact from standby targeting part 358 to action targeting part 357 by the order opposite with said sequence.When stopping element 254 when the state that stops element 254 and end portion 253b adjacency or state that keeper 262a is positioned at the end portion E of reserve piece 358b rotate about 150 °, keeper 262a reaches second operating position of second place targeting part 357d.When the state of position that is positioned at the end portion E of reserve piece 358b from it as keeper 262a rotated about 175 °, keeper 262a reached first operating position of primary importance targeting part 357b.
As shown in figure 29, when keeper 262a was positioned to return targeting part 356, polishing piece 263 was in the retracted position that separates with record head 28.When keeper 262a located first operating position (seeing Figure 28 (a)) of primary importance targeting part, platen 313 was separated into distance P G1 with the terminal surface of record head 28.At this moment, as shown in figure 31, above the predetermined altitude D of the line that the terminal 263a of polishing piece 263 extends with the terminal surface of distance record head 28 is positioned at.In addition, when keeper 262a is positioned at second operating position (seeing Figure 28 (b)) of second place targeting part 357d, the terminal surface separating distance PG2 of platen 313 and record head 28.At this moment, shown in figure 32, the terminal 263a of polishing piece 263 is arranged in above the predetermined altitude D of the line of the terminal surface extension of the record head 28 under Figure 31 state.Wiper apparatus for adjusting position at present embodiment comprises cylindrical cam 334, holding element 262 and keeper 262a.
The action of above-mentioned tape deck 311 will be described below.
When tape deck 311 printed, at first, object T was fed motor 14 and imports tape deck 311.At this moment, the thickness of object T to be imported is surveyed by near the thickness transducer the feeding roller.Usually, print on the object T (for example common paper) that tape deck 311 is set in relative thin.Under the situation that the object T of tape deck 311 definite relative thin has been imported into, it is not driving under the reversible motor M, remains on the carriage 16 of the lower position shown in Figure 28 (a).That is, in this case, tape deck 311 is so that 28 distance P G1 prints from platen 313 to record head.
Tape deck 311 further drives feed motor 14 with target goal thing T between platen 313 and record head 28.Tape deck 311 drives piezoelectric element and sprays print cartridge 21 and the next ink of 22 supplies with the nozzle from record head 23 to object T, makes carriage 16 move back and forth carriage 16 along direction x by driven bracket motor 18 simultaneously.When from being injected in carriage 16 and finishing in can reciprocating scope of record head 28, tape deck 311 drives feed motors 14 so that object T is infeeded with predetermined quantity forward.Thereafter, tape deck 311 driven bracket motor 18 and piezoelectric element are to spray movable support bracket 16 simultaneously to the ink in the record head 28 again.By repeating these steps, carry out the printing on object T.
Finish and will the carrying out under the situation of cleaning operation of record head 28 in printing, tape deck 311 driven bracket motor 18 with movable support bracket 16 on direction x to position in the face of top cover 46.At this moment, what the keeper 262a of wiper support member 261 was positioned at cam groove 355 returns targeting part 356, as shown in figure 29.Even carriage 16 on direction x by polishing piece 263, the terminal 263a of polishing piece 263 also not with record head 28 adjacency of carriage 16.At this moment, stop element 254 in the bottom of cylindrical cam 234 the first end portion 253a adjacency with rotation confinement groove 253, and be positioned at part and the tooth 251a of end portion E of gear 251 arranged in the face of the 4th gear 110.
When carriage 16 reached position in the face of top cover 46, tape deck 311 stopped driven bracket motor 18 and rotary driving motor 38 forward.When drive motor 18 rotated forward, driven wheel 38a rotation and moment of torsion were passed to the 4th gear 110 by first to the 3rd gear 107-109.Therefore, the 4th gear 110 is rotated with direction r2 with direction r1 rotation and driven gear 242, described driven gear 242 and 110 engagements of the 4th gear.When part had the tooth 251a of gear 251 to be in the position of facing the 4th gear 110, part had the tooth 251a and 110 engagements of the 4th gear of gear 251.This causes cylindrical cam 234 with direction r2 rotation, makes cam groove 355 rotations.So keeper 262a reaches standby targeting part 358 from the targeting part 356 of returning of cam groove 355 by action targeting part 357, promotes polishing piece 263.
When keeper 262a reaches standby targeting part 358 and cylindrical cam 234 and does the rotation of about half cycle, the tooth 251a that part has a gear 251 with 110 engagements of the 4th gear.Yet when driven gear 242 kept rotation, described driven gear 242 slides into part had gear 251 to contact, and the torque axis of driven gear 242 changes frictional force into, and described frictional force is passed to part gear 251, and then made cylindrical cam 234 rotations.And when stopping element 254 and rotate the first end portion 253b adjacency of confinement groove 253 or rotate about 200 °, the rotation on r2 of cylindrical cam 234 stops.
Top cover support part 47 is promoted by hoisting mechanism, the torque drive that described hoisting mechanism is transmitted by driven gear 242, and the top cover 46 that imports operating position contacts with record head 28 tightly.Then, pipe pump 37 drives by the 3rd gear 109, in the tight close space generation negative pressure of record head 28.Therefore, full-bodied ink is discharged to waste liquid tank 40, and described full-bodied ink can stop up the nozzle of record head 28.
Subsequently, when drive motor 38 was converted into reverse rotation, the 4th gear 110 was with the direction rotation opposite with direction r1.Therefore, cylindrical cam 234 rotates with the direction opposite with direction r2 by driven gear 242.Thereafter, when keeper 262a from standby targeting part 358 reach the action targeting part that 57 the time, part is meshed by gear 251 and the 4th gear 110.When cylindrical cam 234 with the direction opposite with direction r2 when the end portion E of the reserve piece 358b of the end portion 358 of the reserve piece 358b of standby targeting part 358 rotates about 175 °, drive motor 38 stops.Before drive motor 38 stopped, part had gear 251 and 110 engagements of the 4th gear and keeper 262a to reach primary importance targeting part 357b by the second place targeting part 357d and the second oriented part 357c of cam groove 355.
When stopping in the position of 25 ° of rotations owing to the beginning cylindrical cam 234 that cleans, as shown in figure 31, keeper 262a is positioned at the position of standby targeting part 358.Therefore, polishing piece 263 is placed on first operating position.This end that causes polishing piece 263 with predetermined altitude D be positioned at record head 28 above.
Top cover support part 47 is reduced by hoisting mechanism, and top cover 46 is positioned at non-operating position, thereby carriage 16 is movably.Tape deck 311 driven bracket motor 18 are to move carriage 16 above top cover 46 along the direction of arrow x.Then, carriage 16 moves with polishing piece 263 adjacency and along the direction opposite with direction x, thereby polishing piece 263 is by carriage 16 crooked and terminal 263a and record head 28 adjacency that move.Further the moving of carriage 16 causes that polishing piece 263 relative record heads 28 move and carry out wiping and clean with the whole surperficial wiped clean of record head 28.
When polishing piece 263 was finished the cleaning of record head 28, tape deck 311 is rotary driving motor 38 inversely again.Therefore, the 4th gear 110 rotates again with the direction opposite with direction r1, thereby driven gear 242 and part have gear with the opposite direction rotation of direction r2.Therefore, cylindrical cam 234 is with the direction rotation opposite with direction r2.Therefore, keeper 262a reaches and returns targeting part 356 by the first sloping portion 357a of action targeting part 357.When cylindrical cam 234 rotates to the position (seeing Figure 21) of cleaning beginning, stop element 254 and the first end portion 253a adjacency of rotating confinement groove 253.The rotation of this restriction cylindrical cam 234, thus cylindrical cam 234 stops at the rotation on the direction r1 rightabout.Thereafter, the rotation of drive motor 38 stops.
Secondly, the situation that replaces common paper to print at thicker object T (for example CD-ROM) is described.When object T is imported by feed motor 14, the thickness of the thickness transducer detection of a target thing in tape deck 311.When tape deck 311 determined that object is thicker than predetermined value, tape deck 311 drove reversible motor M and makes armed lever 329 rotations.Therefore, carriage 16 enters the state of Figure 28 (b), and described state is carriage 16 is raised height H from the state of Figure 28 (a) a state.That is, 28 distance P G1 changes over distance P G2 greater than distance P G1 from platen 313 to record head.
Thereafter, rotate forward then in cleaning operation in the reversible rotation at drive motor 38, carriage 16 is in upper position, thereby drive motor 38 rather than stops after 175 ° from 150 ° of the end wall rotations of the reserve piece 358b of standby targeting part 358 temporarily.That is, under being the state of θ=50 ° (seeing Figure 21), the anglec of rotation stops temporarily.
Shown in figure 32, keeper 262a is positioned at the second place targeting part 357d of cam groove 355, and holding element 262 is directed to the surface, end of the terminal 263a of second operating position and polishing piece 263 and gives prominence to predetermined altitude D from the line of the terminal surface extension of record head 28.Therefore, even when 28 distance P G1 (seeing Figure 28 (a)) becomes distance P G2 (seeing Figure 28 (b)) from platen 313 to record head, distance D from the terminal surface of the terminal 263a of polishing piece 263 to record head 28 is constant always also, and polishing piece 263 carries out wiping and cleans under this state.
If thin object T is imported into tape deck 311 to print on object T, then the thickness reversible motor M that surveyed and be connected to armed lever 329 by thickness transducer reversibly rotates.Therefore, record head 28 is reduced to the position shown in Figure 28 (a) from the position shown in Figure 28 (b).Carrying out under this state under the situation of cleaning operation, the drive motor 38 of interim rotation forward stops under the state of 175 ° of the last wall rotations of reserve piece 358b at it.The terminal 263a of the polishing piece 263 by predetermined altitude D above the end surface that always is positioned at record head 28, polishing piece 263 is record head 28 wiped clean.
Present embodiment has following advantage.
Shown in Figure 28 (a) and 28 (b), change the raised position of polishing piece 263 according to distance P G1, the PG2 of 28 end surface from platen 313 to record head.Yet, even when record head 28 be raised and distance P G1, when PG2 is changed, the terminal 263a of polishing piece 263 also always is placed on the terminal surface equal height D place of record head 28.This can make that the interference portion of polishing piece 263 relative record heads 28 is constants, thereby polishing piece 263 always can be fully record head 28 wiped clean.Therefore, record head 28 always can spray the ink that is in good condition.
Keeper 262a is connected to holding element 262, and described keeper 262a is when it is directed on upper and lower direction when sliding in the cam groove in cylindrical cam 234 355, and described holding element 262 supports polishing pieces 263.Therefore, when cylindrical cam 234 rotations, keeper 262a slides in cam groove 355, promotes polishing piece 263.Therefore, by simple structure, the position of polishing piece 263 can easily be conditioned.
Shown in Figure 28 (a) and Figure 28 (b), each distance P G1, PG2 of 28 regulate by promoting record head 28 from platen 313 to record head.That is, because carriage 16 is raised separately, each distance P G1, PG2 of 28 can not apply big load and regulate easily from platen 313 to record head.
Cam groove 355 has the targeting part of returning 356, primary importance targeting part 357b and second place targeting part 357d, even described time targeting part 356 carriage 19 in the above by the time also not with carriage 16 adjacency, holding element 262 is located at first operating position of described primary importance targeting part 357b, and holding element 262 is located at second operating position of described second place targeting part 357d.By being positioned at keeper 262a that returns targeting part 356 and the polishing piece 263 that is positioned at the retracted position that separates with record head 28, record head 28 is by polishing piece 263, thereby polishing piece 263 does not have to receive the power from record head 28.Therefore, do not have unnecessary power to put on the polishing piece 263, the life-span that therefore prolongs it is possible.
Cam groove 355 has horizontal component, and at described horizontal component, primary importance targeting part 357b and second place targeting part 357d are on the circumferential surface of cylindrical cam 234.That is, the first and second position targeting part 357b and the 357d that is used to locate polishing piece 263 is the horizontal component of predetermined length.Therefore, even wrong generation on the anglec of rotation that cylindrical cam 234 stops temporarily, the position of polishing piece 263 also is promoted to predetermined altitude.That is, even the rotation of cylindrical cam 234 is not stopped by control strictly, polishing piece 263 can be adjusted to the precalculated position.
According to each distance P G1, PG2, only promote wiping arrangement 235, described wiping arrangement 235 is parts of nozzle guard device 30.With the lifting of whole nozzle guard device 30 relatively, this makes that must load easily to promote polishing piece 263 be possible with less.
When tape deck 311 when identification is with the thickness of derivative object T automatically, each distance P G1, PG2 of 28 are adjustable with the position of polishing piece 263 from platen 313 to record head.This makes polishing piece 263 fully record head 28 wiped clean and unnecessary at user's side adjustable range PG1, PG2, thereby ink can be injected on the object T more fully.
Below, will the sixth embodiment of the present invention be described based on Figure 33.Present embodiment is only at the embodiment that is different from Figure 27-32 in shape of cam groove 355, and the symbol identical with embodiment among Figure 27-32 is used in similar part and omits their detailed explanations.
The cam groove 455 of present embodiment has the lead-in portion of returning 466, action lead-in portion 467 and standby lead-in portion 468, the described lead-in portion 466 of returning is positioned at below the cylindrical cam 234, described action lead-in portion 467 extends from returning lead-in portion 466 with being inclined upwardly, and described standby lead-in portion 468 along the circumferential direction extends from action lead-in portion 467.Action lead-in portion 467 is straight.When anglec of rotation θ=25 °, action lead-in portion 467 be with Figure 30 in primary importance lead-in portion 357b have identical height.When anglec of rotation θ=50 °, action lead-in portion 467 be with Figure 30 in second place lead-in portion 357d have identical height.Promptly, when drive motor 38 counter-rotatings, if the position of the similar anglec of rotation of drive motor 38 in the embodiment that is parked in to Figure 27-32 temporarily, then holding element 262 is positioned at first operating position or second operating position by the keeper 262a that inserts cam groove 455.In the present embodiment, standby targeting part 468 is built in upper position.When keeper 262a was positioned at standby targeting part 468, carriage 16 moved to towards the position of top cover 46 and by polishing piece 263, thereby polishing piece 263 does not bear the power from record head 28.
Present embodiment also has following advantage except record head always sprays the easy advantage of adjusting in position of ink or wiper device.
Cam groove 455 comprises returns targeting part 466 and standby targeting part 468 and action targeting part 467, and they are connected into straight line, and the described targeting part 466 of returning along the circumferential direction extends.That is, because cam groove 455 has the cam groove 355 simpler shapes among the embodiment with Figure 27-32, so cam groove 455 easier manufacturings.
Action targeting part 467 tendencies are straight, and described action targeting part 467 is determined the operating position of keeper 262a.The anglec of rotation of drive motor 38 when this makes it possible to easily to adjust position that cylindrical cam 234 stops temporarily or polishing piece 263 record head 28 wiped clean.Therefore, polishing piece 263 the optimum position of record head 28 wiped clean only the simple operations of the anglec of rotation by accurately adjusting drive motor 38 obtain.
The above embodiment of the present invention can be amended as follows.
In the embodiment of Fig. 1-11, if the inside of top cover 46 is opened or stopped up to air by changing the relative distance between top cover 46 and top cover support part 47, then other air releasing device also can be so that use.
In the embodiment of Fig. 1-15, valve body 58,126 also can be made by flexible material.Valve body 58,126 can be made by flexible material separately.In addition, valve seat 56,123 and valve body 58 can be made by the material except flexible material.
In the embodiment of Fig. 1-11, if valve seat 56 and valve body 58 can be adjacent to each other or separate by changing relative distance between top cover 46 and top cover support part 47, then valve seat 56 and valve body 58 can be located on other walls of top cover 46.
In the embodiment of Fig. 1-11, valve body 58 can by spring part 58a and other impeller be pushed into with valve seat 56 adjacency.Valve seat 56 and valve body 58 can not use spring part 58a but be adjacent to each other by other parts.In the embodiment of Figure 12-15, in the same manner, valve body 126 by spring part 125 and other impeller along a direction promote with valve seat 123 adjacency.Valve seat 123 and valve body 126 can not use spring part 125 but other parts and making are adjacent to each other.
In the embodiment of 1-11, when the relative distance between top cover 46 and the top cover support part 47 was maximum, bar 73 can be located in the mobile range of plate 61 or above the plate 61.As a result, when bar 73 was moving upward, plate 61 was positioned at below the bar 73, thereby plate 61 does not disturb with the lifting of bar 73.Because sliding bar 73 is unnecessary with the lifting arm 73 that makes progress, so can simplification device.
In the embodiment of 1-11, for example, the contact surface of plate 61 and bar 73 can be set curved surface for, thereby bar 73 slides.
In the embodiment of 1-11, bar 73 can promote along glide direction by spring part 77 and other impeller.
In each embodiment of Fig. 1-15, if top cover support part 47,121 can make progress and descend to move, then the driving force of drive motor 38 can be transmitted by other transferring elements that replaces cylindrical cam 35.
In each embodiment of Fig. 1-15, cylindrical cam 35 is not restrictive, but other cam, for example, the cam of spherical cam, taper, square position shape cam etc. can be used.
In each embodiment of Fig. 1-15, replace the driving force of drive motor 38 is passed to cylindrical cam 35 and pipe pump 37 necessarily to differ, they also can be driven by the drive unit of each self-separation.
In each embodiment of Fig. 1-15, liquid-jet device can be that other liquid of injection also can be the printing equipment that comprises fax and duplicator.For example, it can be a liquid-jet device, described liquid-jet device to electrode material or colored materials atomizing of liquids to be used to make LCD, EL display, surface emitting display (FED) etc.; Also can be liquid-jet device, described liquid-jet device sprays active organic material being used for biochip, or the sample injection apparatus, for example tiny pipette.
In the embodiment of Figure 12-15,, then can use other air releasing device if the inside of top cover 120 can open or close to air by changing the distance between top cover support part 121 and division board 133.
In the embodiment of Figure 12-15, air hose 122 is positioned at the 3rd retaining part 43 sides except being connected to, and can be connected on other wall of top cover support part 121, in addition, valve body 126 can be connected on the identical wall in the same manner, thus rotatably with valve seat 123 adjacency.Therefore, division board 133 should be provided with like this so that its adjacent part 134 and ledge 129 adjacency of valve body 126.
In the embodiment of Figure 12-15, the air of top cover 120 not only in opening by causing valve body 126 and valve seat 123 in abutting connection with discharging.For example, leftward under the situation of side, the left side of valve body 126 to opening can be set, and at the opening of valve seat 126 during at upside, valve body 126 can be arranged on upside at the opening of valve seat 123.At this moment, the position of adjacent part 134 can change fully.
For example, in the embodiment of Figure 16-23, cam groove 252 can be on cylindrical cam 234, and two elements, and first groove forms element 255 and second groove and forms element 256 and can make by single element.
In each embodiment of Figure 16-33, part has gear 251 can be located at except the upside of cylindrical cam 234, also can be located at downside.
In each embodiment of Figure 16-33, when part had the ledge 260 of gear 251 to be inserted in the recessed portion 259 of second groove formation element 256, the gap can be set other length except a tooth pitch for.If the gap less than a tooth pitch, then can be carried out than the more smooth engagement of aforementioned techniques and can be reduced the spin loss that relative part has the cylindrical cam 234 of gear 251.
In each embodiment of Figure 16-33, recessed portion can have on the gear 251 built in part, and ledge can be on second groove formation element 256, and described ledge is assemblied in recessed portion.
In each embodiment of Figure 16-33, part has the diameter of gear 251 and driven gear 242 to differ from one another.In this case, consider the downside of the 4th gear 110, part has gear 251 and described the 4th gear 110 to mesh, and driven gear 242 meshes with the upside of described the 4th gear 110, and two gears of different-diameter are alignment and as the 4th gear 110 placements each other.
In each embodiment of Figure 16-33, part can be made up of by other gear except spur gear gear 251, the 4th gear 110 and driven gear 242, for example, and helical gear.
In each embodiment of Figure 16-33, being located at part has the cylindrical cam 234,334 of gear 251 can be used for a mechanism except the mechanism that promotes polishing piece 263.For example, cylindrical cam 234,334 can be used for unshowned mechanism, and described unshowned mechanism promotes top cover support part 47, thereby top cover 46 is raised by rotating cam 234,334.
In each embodiment of Figure 27-33, second operating position can be located near the position of returning targeting part 356, described return targeting part 356 when cleaning beginning in lowermost portion, and first operating position that is lower than second operating position can be located at the position near standby targeting part 358.
In each embodiment of Figure 27-32, more targeting part 357b, 357d can be set, described more targeting part 357b, 357d become the horizontal component of action targeting part 357.In the embodiment of Figure 33, can accurately adjust the timing that when reversible rotation, stops drive motor 38.Even the distance P G1 (PG2) between platen 313 and record head 28 is adjustable sustainably, this can allow polishing piece 263 always from the outstanding predetermined altitude D of the terminal surface of record head 28.
In each embodiment of Figure 27-33, can pass through to replace the lifting of record head 28, and change each distance P G1, PG2 by promoting platen 313.
In each embodiment of Figure 27-33, can change each standby targeting part 358,468 of cam groove 355.Because when record head 28 keeper 262a slip during in the face of top cover 46, regardless of the height of polishing piece 263, standby targeting part 358 and 468 is the power of receiving record head 28 not.

Claims (4)

1. liquid-jet device, it has platen, jet head and polishing piece, and described platen supports object, and described jet head is injected into described object to liquid, and described polishing piece is characterized in that with described jet head adjacency and its wiped clean,
Have the wiper position regulator, described wiper position regulator is based on the height of described jet head and adjust the raised position of described polishing piece.
2. liquid-jet device according to claim 1, it is characterized in that described wiper position regulator has rotor, keeper and wiper support member, described rotor has the cam groove on its circumferential surface, when the rotation of described rotor, described keeper is directed to when it slides in described cam groove vertically, and described wiper supports support is connected to the described polishing piece of described keeper.
3. liquid-jet device according to claim 2 is characterized in that described cam groove comprises:
First horizontal component, described first horizontal component is directed to retracted position to polishing piece, separates from described jet head at the above polishing piece of described retracted position; With
A plurality of second horizontal components, described second horizontal component have predetermined length and each second horizontal component is directed to operating position to described polishing piece, in described operating position polishing piece and described jet head adjacency.
4. liquid-jet device according to claim 3 is characterized in that described cam groove comprises:
Horizontal component, described horizontal component is directed to retracted position to described polishing piece, separates from described jet head at the above polishing piece of described retracted position; With
Sloping portion, described sloping portion is directed to operating position to described polishing piece, in described polishing piece of described operating position and described jet head adjacency.
CN2007101087426A 2002-07-08 2003-07-08 Liquid ejection apparatus Expired - Fee Related CN101058257B (en)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
JP2002199048 2002-07-08
JP2002199048 2002-07-08
JP2002-199048 2002-07-08
JP2003061901 2003-03-07
JP200361901 2003-03-07
JP2003-61901 2003-03-07
JP2003-96643 2003-03-31
JP2003096643A JP2004299311A (en) 2003-03-31 2003-03-31 Wiping device, liquid ejection device, and wiping method
JP200396643 2003-03-31
JP2003175440 2003-06-19
JP2003-175440 2003-06-19
JP2003175440A JP4158614B2 (en) 2003-03-07 2003-06-19 Rotating body, drive conversion device, cleaning device, and liquid ejecting device
JP2003183294A JP3589238B2 (en) 2002-07-08 2003-06-26 Liquid injection device
JP2003183294 2003-06-26
JP2003-183294 2003-06-26

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CNB038044765A Division CN100333913C (en) 2002-07-08 2003-07-08 Rotor, drive conversion device, cleaning device, wiping device, and liquid injection device

Publications (2)

Publication Number Publication Date
CN101058257A CN101058257A (en) 2007-10-24
CN101058257B true CN101058257B (en) 2010-06-09

Family

ID=38794143

Family Applications (2)

Application Number Title Priority Date Filing Date
CN2007101087426A Expired - Fee Related CN101058257B (en) 2002-07-08 2003-07-08 Liquid ejection apparatus
CN2007101087430A Expired - Fee Related CN101054022B (en) 2002-07-08 2003-07-08 Rotor, drive converting apparatus, cleaning apparatus, wiping apparatus, and liquid ejection apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN2007101087430A Expired - Fee Related CN101054022B (en) 2002-07-08 2003-07-08 Rotor, drive converting apparatus, cleaning apparatus, wiping apparatus, and liquid ejection apparatus

Country Status (1)

Country Link
CN (2) CN101058257B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8429787B2 (en) * 2005-07-27 2013-04-30 Zih Corp. Dual use cleaning apparatus and method
US8672447B2 (en) * 2011-11-11 2014-03-18 Seiko Epson Corporation Wiper unit and liquid ejecting apparatus
JP6115139B2 (en) * 2013-01-11 2017-04-19 セイコーエプソン株式会社 Liquid ejecting apparatus and maintenance method
EP3408101B1 (en) 2016-01-29 2020-09-09 Hewlett-Packard Development Company, L.P. A printhead-wiping device
CN111550502B (en) * 2020-05-12 2021-08-06 联想万像(深圳)科技有限公司 Clutch and printer
CN113394180B (en) * 2021-06-10 2022-05-31 广东气派科技有限公司 Packaging structure and packaging method of high-frequency power amplifier chip for communication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000179641A (en) * 1998-10-06 2000-06-27 Sanyo Electric Co Ltd Workpiece conveying device
JP2001353860A (en) * 2000-06-13 2001-12-25 Sharp Corp Ink jet printer
CN1382586A (en) * 2001-04-20 2002-12-04 精工爱普生株式会社 Maintenance appts. and maintenance method and ink-jet printer using same
EP1010535B1 (en) * 1998-12-15 2008-03-05 Canon Kabushiki Kaisha Ink jet printing apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1230305C (en) * 2000-04-06 2005-12-07 精工爱普生株式会社 Cleaning device and ink jet printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000179641A (en) * 1998-10-06 2000-06-27 Sanyo Electric Co Ltd Workpiece conveying device
EP1010535B1 (en) * 1998-12-15 2008-03-05 Canon Kabushiki Kaisha Ink jet printing apparatus
JP2001353860A (en) * 2000-06-13 2001-12-25 Sharp Corp Ink jet printer
CN1382586A (en) * 2001-04-20 2002-12-04 精工爱普生株式会社 Maintenance appts. and maintenance method and ink-jet printer using same

Also Published As

Publication number Publication date
CN101054022B (en) 2010-10-20
CN101058257A (en) 2007-10-24
CN101054022A (en) 2007-10-17

Similar Documents

Publication Publication Date Title
CN100333913C (en) Rotor, drive conversion device, cleaning device, wiping device, and liquid injection device
CN1030051C (en) Liquid container, recording head using same and recording apparatus using same
DE60210459T2 (en) INKJET
US9114620B2 (en) Liquid ejecting apparatus
CN102001228B (en) Image-forming apparatus
US8733890B2 (en) Nozzle surface cleaning apparatus and droplet ejection apparatus
CN103029441B (en) Ink-jet recording apparatus
US20050007412A1 (en) Ink jet recording apparatus
US20090289993A1 (en) Liquid discharging device and method of controlling the liquid discharging device
CN101058257B (en) Liquid ejection apparatus
CN1452551A (en) Paper thickness sensor in printer
JP2010184444A (en) Liquid discharge apparatus
JP2011255643A (en) Liquid ejection apparatus
CN106004054A (en) Tube pump and printer provided with the same
US6883896B2 (en) Ink jet recording apparatus
CN1457298A (en) Air supply arrangement for printer
EP2018967A1 (en) Image recording apparatus
JP2018122533A (en) Liquid injection device
CN100457461C (en) Wiper device and liquid ejection apparatus
JP5458600B2 (en) Fluid ejection device
JP2004066770A (en) Tube pump, jetting recovery device, and ink jet recorder
CN1231352C (en) Liquid spryaing device
US7128390B2 (en) Ink jet recording apparatus
US20170087851A1 (en) Print device
JP3589238B2 (en) Liquid injection device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100609

Termination date: 20130708