JPS5863462A - Ink jet recorder - Google Patents

Abstract

PURPOSE:To provide a clearly printable recorder by arranging a cap having a pluralty of recesses corresponding to ink discharge ports of a plurality of ink jet heads arrayed parallel on a common substrate and clog cleaning systems for the discharge ports in the recesses. CONSTITUTION:This relates to an ink jet recorder wherein a pluality of head units 101 comprising a head section 103 having a pluralty of orifices 102 aligned, a drive control section 104 and a wire section 105 are arranged on a common supporting plate 106 in a full line. A cap 133 is provided having a plurality of recesses 206 corresponding to head sections 103 of the head units 101 and nozzles 207 for injecting air of a cleaning liquid and a suction nozzle 208 for recovering it are provided in the recesses.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inkjet recording device equipped with a capping system for preventing clogging of ink ejection ports in an inkjet device.

Among the various recording methods currently known, the non-impact recording method generates almost no noise during recording, is capable of high-speed recording, and can record on plain paper without requiring any special fixing process. The fold-open inkjet recording method is recognized as an extremely useful recording method.

However, the other aspect of this inkjet recording method is that the inkjet device used in this method has an extremely fine ink ejection opening (generally, the diameter is about several tens of microns).
Therefore, when the device is at rest, clogging is likely to occur, and if the ejection port is clogged, normal ink ejection may not occur, resulting in poor recording. It is something that they have together.

Due to circumstances such as rivets, it is considered essential for inkjet recording methods to have a means to prevent or release clogging of the ink ejection port (due to adhesion of dust or drying of ink). In the past, many proposals have been made as means to prevent or release this type of clogging, but 1) the device is complicated and too large, and 2) a large amount of cleaning liquid is required! ■There are inconveniences such as insufficient clogging removal effect due to cleaning.
None of these methods has yet reached a level where they can be put to practical use.

Moreover, these conventional measures cannot be applied to a multi-array orifice type inkjet device having hundreds to thousands of ink ejection ports arranged in parallel.

Therefore, in the present invention, in view of the actual situation related to such inkjet recording technology, a clogging prevention system and a clogging release system of a new configuration are provided that guarantee good recording quality even when a multi-array orifice type inkjet device is adopted. The main objective is to provide a puncture jet recording device equipped with the following.

In other words, the main object of the present invention is to provide an inkjet recording apparatus that guarantees reliable and stable ink ejection with a simple system and enables high-speed, high-quality inkjet recording.

The inkjet recording device of the present invention that achieves the above object comprises a plurality of inkjet devices arranged in parallel on a common substrate and a cap having a plurality of recesses facing the ink ejection ports of these devices, The invention is characterized in that each of the recesses is provided with a clogging release system for the discharge port.

Hereinafter, the present invention will be described in detail based on the drawings.

1 is an external perspective view of Kinoe's inkjet recording apparatus. In this diagram, 101 is a recording head unit, and 101 is an inkjet spatula having a number of orifices 102 arranged in a line.
104 and the mounting part 105, the head part 103. istm system part 104. The wiring parts 105 are connected to each other by a closing wire, a flexible printed board, etc. (not shown), and by manually inputting a recording signal to the wiring parts 105, the print head unit 101 can be individually operated for printing. It is set. 106 is a support plate for the head unit 101], and F is provided on both the front and back sides of this
The orifice 102 is arranged in a full line across the width of a predetermined printing paper (...19.-digits) by adjusting the number of values of the head unit 101 as shown in the figure. Tani Head Units) 101 is the support plate 106
Attached to the 9 head position #It, the 1st position in the left and right direction was investigated with 4M107□, and the head holding plate 10g
The position of one foot in the vertical direction of 7 is arranged evenly on the support plate 106 so that it can be adjusted freely.

109 is an output signal from an output section 4M (not shown) which is connected to each head via a couple 110 and a connector/-111. The tool 112K is pressed into contact with the separate fitting part 105 of the valley head unit 1101K, and is electrically connected to the sixth fitting part 105. This AlK printed board 109 and each wiring section 105 are not aligned with each other, and form a frame that can be freely attached and detached.

■1 is a lead terminal assignment board, and another signal -11 from the signal output section for driving the head unit 101.
4 and valley head Yuetsu) 101 head part 103KI
I! 1%! The connected signals (not shown) are detachably connected by screws or the like.

Both 115 and 115' are ink supply pipes for supplying ink from the ink mentor 116 to each head section 103. The ink supply pipes 115 and 115' are connected to each head part 1.
Two Ijk are connected to 03), inter-discharge #i
j through the two supply pipes 115 and 115' to the head part 10;
3 times are supplied, or by means of an inauspicious pulp ridge attached to the ink tank 116, -1000 is used for pressurized navy blue feeding, and the other is used as an inter-appropriate ink tank 1.
It is also a good idea to add and circulate ink between the head part 16 and the head part 103. - The ink printer 116 is equipped with a cylinder block #117A containing a pressurizing pump for operating the pulp machine and a vent hole t - an air filter block 11B running south, and this air Filter block 118 K is a collapsed arm M4E to prevent ink from flying at 4 o'clock, etc.
A middle yag 119 is installed.

In addition, the ink tank 116Kti is provided with an ink replenishment port (not shown), and ink is replenished from the KJIlffiAi tank 120 so that the ink level in the ink tank 11 is maintained at about -1000 yen throughout. . The sleeve light collapse tank 120 of C is installed in the ink tank 116II and is held in place by the fixed foot claw 121.121'T ink/ring 116 at will. :
It is now possible to convert. Ink tank 116
17 is fixed on the base of the tank, not shown.
It is also fixed to the support plate 106 by a fixed fixture 12λ122'.

123 is the cover of the head unit 101 equipped with a sieve for one pair of ink supply pipes 115 and 116'; This is to prevent this from happening.

Reference numerals 124 and 124' denote dLtk bottles, which are attached to a paper acupuncture system (not shown) and fit into a bottle holder, so that the orifice lO2 of each head @ 103 and the km paper are connected to each other. Definite I! ji separation position--relationship can be set to 8. Also, the second bins 124 and 124' are connected to the support plate 1 by respective brackets 125 and 125'.
106Ki is widely used.

126 is a support f# plate 106 placed on it, nine pieces, and a j for attaching the Inji inkjet printing device to the main body of Fushimaei's equipment.
As with the i-plate, this base plate 126 is provided with an ore drop and a capping structure for the orifice 102 in order to hold the support plate 1of on the plate 126.

Father, support N* 106 h Its front part is supported by the support plate guide 12
7, 127' and rear ZSt-support plate 10
It is supported by a hinge holder 129, 129' via a hinge stand 128, 128' attached to 6. The hinge holders 129, 129' are slidable onto the two guide shafts 131, 131' through guide shaft collars 130, 130'l, respectively. The guide shaft 131 is supported by a guide plate 132 on the base plate 126 (the guide shaft 131' is not fixed).

Here, by moving the guide shaft collars 130, 130' forward and backward one step relative to the respective guide shafts 131, 131', the support plate 106 also moves to the guide shafts 127, 127, . 127'
Slide the top and move in the same direction as the arrow 7y in the figure, and as will be described later, set the front end surface of the head to the recording position, the 4-yapping pupil.

The maintenance position can be set to the horizontal position.

Reference numeral 133 is a head for mediating and tacking the orifice 102), and on one side facing the V-fiss there is a spout hole for spouting in-air cleaning IIL toward the orifice, and a reverse head. Suction hole for commandeering (
(both not shown).

The ejection hole and the suction hole are arranged at pressure side tip 134, 134' and suction side tip 135, respectively, at non-uniform angles of inclination.
' and also delayed to -hands 136 and 137),
The pressure 11I joint 136 is connected via a bricator (not shown), and the ridge @ hand 137 is connected to the eye 67 (not shown).
through 1/% &-pump pressurization-9, respectively, as shown.
Unehiki@Km continues. The cleaner head 1334, which has a large cap, and the support plate 106 are set so that they can take the following postures: 11klK, 11klK, and 300°C.

In addition, the support plate 106 has the hinge bins 13g and 138' attached to the hinge stands 128A and 128' as support shafts, and the oriice 102@- of the support plate 104i forms an arc (
This support plate 106 HirojFI can be turned around completely.
IIIi126 - Forgiveness stay angle 140
By crimping the stay 141 that lies with the axis 311 of K7-4 to the stay angle 139 that is joined to the floor support plate 1106K with screws 142, it is possible to maintain a constant angle of 9- with respect to the direction of the board 126. It gets thicker.

The support 4106 can be easily removed from the board 126 by removing the fixing screw 142 from the stay angle 139 as well.

Incidentally, 143 扛chape 134.134', 135.
135': A chain guide for fixing on the IFsg 126, and 144 is a chain guide for fixing on the IFsg 126. Melting 11
This is the trowel case number 4. As a result, when the inkjet recording device is installed in an unsuitable device body, it is possible to prevent the coupling 110 and the intermediate value number -114 from being accidentally applied with external pressure and causing failure or breakage δn.

The second example is the cleaner head 133 in the first to second examples.
It is an external perspective view for explaining the ILF' thin Confucian formation.

In FIG. 82, the cleaner head 133 is connected to the pressure shaft 201.
Seiatsuou 202. 111 attacked by outside-203]
, padding 204.2 to prevent leakage between each part.
04' are joined together by extension screws or the like.

In the pressure m 201 where the cleaner head 133 hits the @ surface facing the orifice of an inkjet head (not shown), there is a recess 206 partitioned by direction plates 205 and 205' at a position corresponding to the head unit (not shown). There are 1 each! ! A pressure nozzle 207 and a suction nozzle 208 are provided at both ends of the first part 2060. The pressure nozzle 207 in the valley recess 206 is connected to the pressure hands 209 and 209' via a common @ (not shown) in the pressure m201, and is further connected to the pressure hands 209 and 209' as shown in FIG. .134' to move 136 will be discussed.

Oka mKa suction nozzle 208 Fi is connected to suction joint 10.210' through a common groove (not shown) in the decompression chamber 202, and the training pipe 135.13B' shown in Figure 1 is connected to 135.13B'.
I sent 4 messages to qP137.

As described above, the brackets 211 and 211' (plaques at both ends of the constructed cleaner head 133) are driven ν9, and these brackets 211 and 211' are attached to the support base 21, respectively.
3 and 213', and the bracket 211, which has a 7-inch diameter with the brackets 212 and 212'centered;
211', support stand 213, 213', and Q-moon M3Vt- are tensioned (rolled) by coil springs: InI 3.216', which are hooked to bins 214, 214', and 215, 215'. Here, Figure 3 h>, QsJ,
The interlocking operation of the cleaner head 133 and the support plate 106 provided with an inkjet head unit (not shown) will be explained using FIG. Figure 813-), (b)
In (c), the hinge stand 128 attached to the support plate 106 is supported by the I/J hinge hinge 138 and the pin holder 1299'). @ζ stopped at 129. After the guide shaft collar 130 is fitted into the hinge holder 129, the guide shaft collar 130 is engaged with the lever ring 301 via the spring ring 2 with an L pull 6rL. At this time, the collar 130 is attached to the holder 1291'':
It is a revolving autobiography. The guide collar 130 is the guide shaft 1
3] is externally fitted with mxh=r function, and this guide shaft 1
3) is fixed to the bracket 132, and the bracket 132 is properly fixed to 11iIIi126.

The guide shaft 131 has three ring-shaped @304°30 rods 3
06 is bent, three ring-shaped threads 304°305,
306i; communicated by 11307K in the i-axis direction. A guide pin 303 is attached to the guide shaft collar 130, which can be moved to a predetermined number of the grooves 304, 305, 306, 307, and the guide shaft collar 130 is attached to the guide shaft 131. For example, the ring-shaped groove can fix the position fK of tc &. That is, the guide bin 303 is formed into a one-way groove 3G? The attack collar 130 is moved to a predetermined position by sliding δ inside, and the guide bin 303 is moved to -394, 305, 3.
9.3.
04 or 306 b1130611cm can be determined.

First, in case 3 figure -), 1 [largely color 130
is fixed at position 3C on the guide shaft 131 (separated from the cleaner head 133). At this time, the hinge holder 129 is pushed to the left via the pin 302, and the hinge stand 128 that is locked to the pinge holder 129 and the hinge holder 128 connected to it are The holder 129'' is moved to the pressure in Figure 1 from the pressure button 1 (◇0).Therefore, the support plate 106tJ
After being removed from the board 126, the support plate 106 can be rotated using the hinge pin 138 as a support shaft to hold the support plate 106 at an angle to the surface of the board 126, and then fixed to the cleaner at a dovetailed position from the board 133. Since it is possible to use the inkjet head 9103 and the cleaner, it is best to use the RAD 133 to clean the inkjet head 9103 and the cleaner.

Drama 3-A) The FA guide bin 303t shows -mt- when it is pushed into the second ring-shaped 5305 from the right on the guide shaft 131. At this time, the case of stripe 3-) and the case of 4
1. With the movement of Douwei, the supporter 106 is placed on the left side of the drawing 4!111
11. The support plate 106 is moved 411 m further to the left in the drawing by the distance between the ring-shaped Th 304 and 301S compared to the one shown in Fig. 3-), and the head positioning is made at the tip of the support @10@. Plate 107 is cleaner head 1
Σ so that it touches 33. In this state, the orifice 102 of the valley head portion 103 shown in Fig.
tl cleaner head] 33 each recess 206 (second
The orifice 102 in the non-dispensing state
Pressure nozzle 207 during zero knot prevention (shown @1-)
After injecting air or cleaning liquid from (@2 shown in the figure), these are sucked in and discharged from the suction nozzle 208 (shown in the 2nd figure). ') 4. Its cleaning can be done during protection by jacking.

Figure 3 (c) shows the guide via 303 i drawn into the third ring shape 111306 and is good.

When the guide bin 303 is moved from the ring l-shaped groove 3 ( ) 5 of the strip 2 through the axial groove 307 to the ring-shaped groove 306 of the irises 3, the end of the cleaner head 133 is touched (2).
11 is a □-ra attached to the lower part of the support plate 1060 30
-1 left 7Fv by roller 309 pivotally supported by
This building will collapse. When the guide pier 303 is inserted into the l-shaped groove 306 of the thread 3, it will be fixed in the shape shown in Fig. 3 (a), and the positioning bins 124, 124' of Fig. When the bottle holder (not shown) is deposited, the orifice 302 is set at a predetermined distance from the grinding surface.
EiJ of the inkjet head section 103! # Operation becomes possible.

m4W (false), -L (a) is a side view for explaining in detail the positional relationship between the head portion 103 and the cleaner head 133 in the rod shown in Figure 3 (Φ).

In addition, Figure 4 shows a partial cross section of the cleaner head cut in the longitudinal direction, and Figure 4 shows one side of the cleaner head at the position where the pressure nozzle is located. Part #-1 when cut in the direction, and FIG. J4 (e) is a partial sectional view when the cleaner head is cut in the iit side force direction of the cleaner head at the position where the suction nozzle serves.

In the song 4 Kyo Ayugar (e), the cleaner head 133 connects the αg determining plate 107 with the flat part 40J of the pressurizing force 2υ1, and the inkjet head part 103 with the convex part 402 of the pressurizing force 201. ! I touch it. And direction 4E 20
5.20&' is in contact with the head position IIIt determining plate 107, and the oriice surface 403 of the head iti 103 is pressurized m
s! There are dense vA hairs in the recess 206 of 01. Therefore, if the arrangement of the cleaner head 133 and the head unit 103 is arranged in a shape of an opening (i) during non-recording, ink volatilization from an orifice (not shown) and orifice (orifice) due to the accumulation of gore (not shown) can be prevented. (as shown in the figure) can be prevented.
In addition, even if a printing defect occurs due to Oriice's 0 knot 9 or dust adhesion, if air or cleaning liquid is injected from the pressure nozzle 207, the direction plate 205 will remove the air or  
The liquid is injected toward the oriice surface 403, and is suctioned and discharged from the suction nozzle 208, thereby making it possible to easily remove the dust in the utajl. Pressure nozzle 207,
The suction nozzles 208 are each pressurized fi 201. Decompression chamber 2
Common within 02 @404.405, pressure-hand 209.2
09', suction joint 210, delayed to 210'.

The 5th grader supplies air or cleaning to the cleaner head 133.
A diagram illustrating an example of a system for pumping and aspirating Il is shown below. In figure #45, 501 Fi pump, 50! , 5o6u=10,000 valves, 503 is a check valve, 504 is an auxiliary dam, 505.17 is a pressure switch, 5o8 is a luplicator, 5o9 is a fis, I, 51
0.511...519 is a pipe.

First, the pump 501 moves to the details 504 of stuffiness! f
Send i. 74P, when the pressure inside the mulrator 504 reaches the pressure of the foot, the pressure switch 505 is activated and the pump 5 is activated.
01 is stopped and the three-way valve 502 is connected to the pipe 51G and 5ilf.
d in the same direction as t4.

With the pressure in the middle part 504 at a constant pressure, the three-way valve 506 connects the pipes 514 and 516.
If 1IIδ is applied, Amushima Murata will be pressurized for 504 yen! Chi is out of order, pipes 514, 516, Lupriku 1508,
It is sent to the cleaner head 133 through a pipe 517, a joint 136, and a pressure pipe 134. The pump 501 is activated by the pressure switch 507 attached to the pipe 516 to generate negative pressure, and the cleaner head 133
Then, air is drawn through the suction tape 135, the joint 137, the pipe 518, the filter 509, and the pipe 519. Rikapu, pump 501 is AJ? 6 If the pressure inside the mureme 504 is less than the pressure of the foot, or make 5
It is activated when the pressure in 16 exceeds a predetermined pressure (1), and it also activates when the pressure in the 504 yen cylinder is over 751 constant l) pressure. When the pressure inside the Nakajima mullet 504 exceeds a predetermined pressure, the pressure switch 507 is removed and the sand pump 5
When 01 is activated (by pressure switch 505), pressurized air from pump 501 is discharged from three-way valve 502 through pipe 5ilft. When the three-way valve 506 is turned in the direction where the pipes 515 and 516 are connected, the JIJ ratio air goes up, the pressurized air between the three-way valve 50m and the Lupricou 7508 is discharged through the pipe 515, and the pressure switch 507 stops the pump 501. do.

In addition, if you put 1 pIE of washing liquid into the Lupuri Gou 1508, you can use the pulp of the Lupuri Gou 1508 to send only pressurized air or force the washing liquid.
1il&! It is.

In the main text of Jdlal, the ink supply related to the inkjet head part - the drive system of the F1 regular head, etc.
! I'll omit it for now, since it's so bad.

When the inkjet recording device W according to the present invention described above is used, it is possible to: ■ create a system with a large number of ink ejection ports;
In addition, it is possible to simultaneously prevent the inkjet process from starting, and also to reduce the inkjet flow rate, thereby ensuring stable inkjet performance at all times.

＠Without the need for a device, it is possible to prevent the ink discharge port from sticking to the dry steel tube of the ink.
can be completely prevented.

[Yes] Since the 1XtIai' matching (alignment) between the inkjet device and the middle yapping member can be performed easily and accurately, the yapping member for preventing 0 pongee can be reliably achieved.

It is a town that can be obtained as a supporter of the barbarians.

[Brief explanation of drawings]

Cap 1- is an inkjet printer of the present invention - external appearance of the device a-1
2- is an external oblique view a showing the detailed structure of the cleaner head, and 3 is an oblique view ζ&), (b)l (eJ is a
w& operation itm##im, 4th tlJ m), Q
)), (a) Id A cross-sectional view for explaining the embodiment of the Ichimou method, and Figure 5 is a block diagram schematically showing the cleaning system in the inkjet apparatus of the present invention. . -, 101 is Ki-head et, 102 is Oriais, 103 is an inkjet head section, 104
1 is a drive control part, 105 is a mounting part, 108 is a support plate, 1
07 is a head positioning plate, 108 is a head holding plate, 10
9 is a glint plate, 110 is a cable, 111 is a connect l-1112 is a pressing jig, 113 is a lead terminal mounting plate, 114#i (!I-1115, 115' is an ink supply pipe, 116.120 is an ink tank 118 is the air filter Ω ivy, 121, 121' are the fixed claws, 12λ122' are the fixed metal parts, 123 is the cover, 124.124' is the positioning bottle, 128, 128' are the screw stands, 129, 129 130, 130' are guide shaft collars, 131, 131' are guide shafts, 133Fi cleaner head, 134, TA4', 135.135' are chimp, 136.13 ki 21.19 ', 21υ, 2
10' is a joint, 138, 138' are hinge bins, 139.140Fi stay angle, 141 is a stay, 142#i screw, 143i1t tip guide, 144 is a protection case, 201 is a pressurizing shaft, 202 is a sincere pressure fitting , 203 Fi outer lid, 20! &, 205'
Force direction plate, 206 is a convex portion, 207 is a 1-pressure nozzle, 2
08 is the ridge nozzle, 212.212' is the information, 213,
213' is a support stand, 214, 214', 15.215
'#i is a bottle, 216, 216', 302 is a spring, 301 is a ring l. 303 is Kaitobin, 304.305.306.3
07 is a trout, 308 is one a-ra, 309 #i roller, 403 is an ori 74
06 I/i valve, 504 is empty, muleta, 605.507#i pressure switch, 50g #i mill precoup, 509 is filter,
510.511.512.513.514.・515.
516.517.618°519 is a pipe. Penghito Nakayanon Co., Ltd.

Claims (1)

[Claims] It comprises a plurality of inkjet devices arranged in parallel on a common substrate and a cap having a plurality of recesses facing the ink ejection ports of these devices, each of the recesses having a clogging release system for the ejection ports. An inkjet recording device characterized in that: