CN101628502A - Ink jet printer - Google Patents

Abstract

An ink jet recorder for recording on a recording medium being carried while mounted on a carrying belt by ejecting ink drops from a plurality of nozzles in which recording quality is enhanced while increasing the recording speed. The recording medium carrying means comprises first and second carrying sections juxtaposed in the carrying direction of the recording medium and each having a plurality of carrying belts spaced at specified intervals. The carrying belts of the first and second carrying sections are staggered such that the carrying belts of the first carrying section are located among the carrying belts of the second carrying section. The recording head comprises a first head so arranged as to oppose to the spacing between the carrying belts of the first carrying section, and a second head so arranged as to oppose to the spacing between the carrying belts of the second carrying section.

Description

Ink-jet recording apparatus

The application divides an application, the application number of its female case application: 200580000810.6, and the applying date: 2005.1.21, denomination of invention: ink-jet recording apparatus

Technical field

The present invention relates to a kind of by making recording medium not be accompanied by the ink-jet recording apparatus of finishing the record of this recording medium that moves of record head.

Background technology

In recent years, for to from nozzle ejection ink droplet and in the requirement of the high speed of the writing speed of the ink-jet recording apparatus of the enterprising line item of recording medium, possessed the above length arrangement of the width that spreads all over recording medium the ink-jet recording apparatus (below be called line head-type ink-jet recording apparatus) of record head (below be called the line shower nozzle) of line of a plurality of nozzles be practical.

In this line head-type ink-jet recording apparatus, recording medium by with the formation of face that it write down and line shower nozzle the face of nozzle transmit continuously or off and on opposed to each other mutually.In addition, the line shower nozzle sprays ink droplet based on the Information Selection ground that should write down towards the face that will write down of the recording medium that is transmitted among a plurality of nozzles of being arranged.That is, line head-type ink-jet recording apparatus is not to be accompanied by moving of record head, only recording medium is moved along a direction, finishes the device to the record of this recording medium.

In this line head-type ink-jet recording apparatus, for example opened in the flat 10-202922 communique in the past and put down in writing, known oriented be adsorbed on the conveyer belt that is erected between pair of rolls and formation that the recording medium that transmits writes down as the spy.

In addition, be not limited to line, in the record head of ink-jet recording apparatus, sometimes the solvent of black liquid evaporates from the nozzle of ejection ink droplet and the viscosity of the black liquid in the nozzle is risen, under the poorest situation, solidify, or foreign matter invades in the nozzle and the obstruction of nozzle takes place, thus the situation that has the performance of ejection ink droplet from nozzle to reduce.So ink-jet recording apparatus is by following formation, that is, make before discharge performance reduces rising because of the black fluid viscosity in the nozzle or stop up, carry out preventing in advance the pre-anti-clogging ejection of stopping up, thereby keep good recording quality with the irrelevant ink droplet ejection of record.

In described line head-type ink-jet recording apparatus, for example opened in the 2001-113690 communique in the past and put down in writing as the spy, known have a following technology, promptly, transmit being erected between a pair of transfer roller on the conveyer belt of recording medium and form a plurality of holes, by passing these hole ejection ink droplets,, also can avoid pre-anti-clogging ejection to make the situation of the time lengthening of record end even a plurality of recording mediums are carried out record continuously.

In addition, be not limited to line, in the record head of ink-jet recording apparatus, the solvent of black liquid evaporation and make black liquid-solidization in the nozzle from the nozzle of ejection ink droplet sometimes, or foreign matter invades in the nozzle and the obstruction of nozzle takes place, thus the situation that has the performance of ejection ink droplet from nozzle to reduce.So ink-jet recording apparatus promptly, is possessed the protective cap that covering nozzles face ground is protected by following formation, the evaporation, foreign matter that prevents solvent entering in nozzle etc., thus prevent the obstruction of nozzle, keep good recording quality.

In described line head-type ink-jet recording apparatus, for example opened in the 2002-120386 communique in the past and put down in writing as the spy, known have a following technology, promptly, cap is kept out of the way to the side of conveyer belt, the record head that is disposed on the conveyer belt is moved upward, between record head and conveyer belt, produces the gap, to this gap, inserting cap with the direction of the direction of transfer quadrature of conveyer belt.

In addition, in the record head of ink-jet recording apparatus, sometimes the solvent of black liquid evaporation and make black liquid-solidization in the nozzle from the nozzle of ejection ink droplet, or foreign matter invades in the nozzle and the obstruction of nozzle takes place, thereby the situation that has the performance of ejection ink droplet from nozzle to reduce.So ink-jet recording apparatus is by following formation, that is, possesses the discharge performance recovery device that the discharge performance that reduced is recovered, thereby can keep good recording quality.

In described line head-type ink-jet recording apparatus, for example opened in the 2002-103638 communique in the past and put down in writing as the spy, known have a following technology, promptly, make the line shower nozzle on the plane parallel with recording medium, to not rotating, recover the discharge performance of line shower nozzle with the non-posting field in the opposed zone of recording medium as nozzle.

In addition, in described line head-type ink-jet recording apparatus, for example opened in the flat 8-132700 communique in the past and put down in writing as the spy, known have be set up in that conveyer belt between a pair of transfer roller is uploaded the put medium and the formation that transmits.In addition, known for the recording medium in suppressing to transmit from the situation that conveyer belt floats, the formation that is provided with thorn wheel (は く や) between the record head of the direction of transfer of recording medium is arranged.

But, described spy opens in the formation of being put down in writing in the flat 10-202922 communique, sometimes make the transfer rate change of recording medium because of stretching of conveyer belt, or become unstable because of conveyer belt vibrates the interval that makes record head and recording medium between transfer roller, make the hit location of ink droplet on recording medium depart from given position.The hit location skew of the ink droplet that is caused by these phenomenons will be got over generation significantly when the transmission interval of conveyer belt is long more.That is, following an open question is still arranged, be difficult in when keeping good recording quality, prolong the transmission interval of conveyer belt.

The present invention finishes in order to solve described problem, and its first purpose is, the ink-jet recording apparatus of the high speed of the transmission interval that can not damage recording quality ground prolongation conveyer belt or the further raising that realizes recording quality, writing speed is provided.

In addition, described spy opens in the formation of being put down in writing in the flat 10-202922 communique, and a plurality of nozzles of ejection ink droplet are spreaded all over A4 minor face size ground and arrange formation along the paper width.In addition, conveyer belt has the longer width dimensions of length than the nozzle rows that a plurality of nozzle constituted that is arranged formation, is set opposed to each other mutually with nozzle according to the mode that covers this nozzle rows.

So, in the time will implementing boundless record to the record-paper of A4 size, the posting field black liquid outward that the prints to record-paper conveyer belt of will making dirty.In addition, there is the record-paper that is difficult to contrast littler size of A4 size or abnormity etc. to carry out the such an open question still of boundless record.

The present invention finishes in order to solve described problem, and its second purpose is, provides can be not conveyer belt not to be carried out the ink-jet recording apparatus of boundless record to the recording medium with various sizes and shape with black liquid with making dirty.

In addition, described spy opens in the conventional art that the 2001-113690 communique put down in writing, and must form the hole on the conveyer belt that transmits recording medium, when when the conveyer belt that has formed the hole applies given tensile load, near the emptying aperture part is compared with other part, and tensile stress and distortion become big.That is,,, will produce tensile stress and distortion in heterogeneity ground in the full week of conveyer belt because of the influence in formed hole.

The ink-jet recording apparatus that this writes down for utilizing conveyer belt to transmit recording medium is difficult to improve recording quality, is unfavorable in this.Promptly, in the transmission that utilizes conveyer belt, because of the flexible transfer rate change that makes recording medium of conveyer belt, or, make the hit location of ink droplet on recording medium depart from given position because of conveyer belt vibrate the interval that makes record head and the recording medium instability that becomes between transfer roller.

That is, open in the conventional art of being put down in writing in the 2001-113690 communique,, encouraged the change of transfer rate and the vibration of conveyer belt, thereby the such an open question still of raising that is difficult to realize recording quality is arranged because of on conveyer belt, forming the hole described spy.

The present invention finishes in order to solve described problem, and its 3rd purpose is, the change of the transfer rate that can suppress recording medium is provided, and can not cause the ink-jet recording apparatus of the pre-anti-clogging ejection in reduction ground of recording quality and writing speed.

In addition; described spy opens in the conventional art of being put down in writing in the 2002-120386 communique; owing to be that record head is moved upward; therefore the formation that cap is moved down from the side direction record head in addition is difficult to shorten and protective cap is placed in the time on the record head and protective cap taken off and time of making it to back out from record head.In addition, the mechanism that record head and protective cap are moved separately is difficult to keep the higher reliability of portion of mechanism or reduces an open question still such as component parts number thereby have.

The present invention finishes in order to solve described problem, and its 4th purpose is, provides and can shorten the time that is spent in the dismounting of protective cap on record head with simple formation, and can guarantee the ink-jet recording apparatus of higher reliability.

In addition, described spy opens in the conventional art of being put down in writing in the 2002-103638 communique, in that not damage line shower nozzle ground restricted in the rotary speed high speed, is difficult to shorten the time that discharge performance is spent in recovering, and it is complicated that mechanism that makes it to rotate or control become.In addition, owing to the discharge performance recovery device must be set, therefore have to be difficult to realize an open question still such as miniaturization at non-posting field.

The present invention finishes in order to solve described problem, and its 5th purpose is, provides to shorten the time that discharge performance spent in recovering and the ink-jet recording apparatus of miniaturization easily.

In addition, described spy opens in the conventional art of being put down in writing in the flat 8-132700 communique, suppresses between the record head of direction of transfer that the thorn wheel that floats in the transmission of recording medium is equipped on recording medium.So, though can utilize thorn wheel to suppress to float for the high recording medium of rigidity such as label paper, and the interval of can hold the record well head and recording medium, but on the not high recording medium of rigidity such as record-paper, obtaining effect of sufficient because of black liquid infiltrates the warpage that takes place.

Promptly, shown in Figure 52 of the figure of the problem of conventional art as an illustration, when record-paper P infiltrates recording surface PP as the black liquid IK that sprays from record head HDA, the part of being infiltrated at the black liquid IK of recording surface PP, the balanced deflection of the transmission plane PH of the one side that recording surface PP is opposite with this recording surface PP with conduct, thus warpage (Figure 52 (b)) takes place.

When the record-paper P of mounting on conveyer belt V was transmitted and arrives thorn wheel portion, record-paper P was shown in Figure 52 (c), and SP corrects warpage by thorn wheel.

When record-paper P passes thorn wheel portion and when arriving record head HDB, record-paper P owing to do not correct the member of warpage, therefore warpage can take place once more shown in Figure 52 (d).That is,, when passing thorn wheel portion, can take place once more, thereby the such an open question still in interval of be difficult to hold the record rightly head and record-paper P is arranged though the warpage of record-paper P is temporarily corrected by thorn wheel portion.

The present invention finishes in order to solve described problem, and its 6th purpose is, provides to suppress floating and can keeping the ink-jet recording apparatus at the interval of recording medium and record head rightly of recording medium.

One of invention is to possess: upload the put medium and the recording medium connecting gear that transmits at conveyer belt, set opposed to each other mutually with recording surface as the face of the opposite side of transmission plane of the described recording medium that transmits by this recording medium connecting gear and with the direction of the direction of transfer quadrature of described recording medium on arranged the nozzle of a plurality of ejection ink droplets jet recording device, it is characterized in that, described recording medium connecting gear has connection and mutual the 1st transport unit and the 2nd transport unit that keeps given compartment of terrain to be arranged side by side many conveyer belts on the direction of transfer of described recording medium, and the conveyer belt of described the 1st transport unit and the 2nd transport unit is set according to the mode that is provided with the opposing party's conveyer belt between a side conveyer belt.

According to described formation, the transmission interval of the recording medium of recording medium connecting gear is made of the 1st transport unit and the 2nd transport unit.So, and the interval situation with 1 transport unit formation of identical transmission is compared, the girth of the conveyer belt separately of the 1st and the 2nd transport unit can be constituted shortlyer.

That is, when applying identical tension force, when the conveyer belt of longer conveyer belt of girth and the 1st and the 2nd transport unit was compared, then the degree of the stretching, extension of the conveyer belt of shorter the 1st and the 2nd transport unit of girth was littler.So, the stretching, extension of the conveyer belt that the rotation because of driving shaft produces can be reduced, thereby the skew of the hit location of ink droplet on recording medium that causes by the change of the transfer rate of the flexible recording medium that causes of conveyer belt, by the vibration of conveyer belt can be reduced.

In addition, two of invention is to have following feature in one of invention, that is, described record head is by being equipped on towards locational the 1st shower nozzle between the described conveyer belt of described the 1st transport unit, being equipped on towards locational the 2nd shower nozzle between the described conveyer belt of described the 2nd transport unit and constituting.

According to described explanation, do not exist under the situation of recording medium on the conveyer belt, even record head sprays with the pre-anti-clogging that record irrespectively sprays ink droplet, can prevent that also ink droplet is attached on the conveyer belt.In addition, record head does not need to change the position of record head when writing down and when carrying out pre-anti-clogging ejection, can finish pre-anti-clogging ejection at short notice.

In addition, three of invention be one of invention or two in have following feature, that is, described the 1st transport unit and the 2nd transport unit are drawn between driving shaft and the driven shaft that sets abreast with it respectively and are provided with described conveyer belt.

In addition, four of invention be the invention one of or two in have following feature, that is, described the 1st transport unit and the 2nd transport unit are drawn between common power shaft, parallel the 1st driven shaft that sets with this common power shaft of quilt and the 2nd driven shaft be located between the two and are provided with described conveyer belt.

According to described explanation, rotate with identical speed because the conveyer belt of the conveyer belt of the 1st transport unit and the 2nd transport unit is utilized public driving shaft, so recording medium is being transmitted with identical speed on the 1st transport unit with on the 2nd transport unit.

In addition, and will compare with the situation that 1 conveyer belt constitutes, can shorten the girth of the conveyer belt separately of the 1st and the 2nd transport unit from the identical transmitting range of the 1st driven shaft to the 2 driven shafts.That is, when applying identical tension force, when the conveyer belt of longer conveyer belt of girth and the 1st and the 2nd transport unit was compared, the degree of the stretching, extension of the conveyer belt of the 1st and the 2nd transport unit that girth is shorter was littler.So, can reduce the stretching, extension of the conveyer belt that produces because of the rotation of driving shaft.

In addition, five of invention be the invention one of or two in have following feature, that is, described the 1st transport unit and the 2nd transport unit are made of the described conveyer belt of identical number respectively.

According to described explanation, the bar number of the conveyer belt of the bar number of the conveyer belt of the 1st transport unit and the 2nd transport unit can be made as similar number.

In addition, six of invention be the invention one of or two in have following feature, promptly, the a certain side of described the 1st transport unit and the 2nd transport unit is set to than the opposing party's transmission tape number Duos 1 transmission tape number, and the described conveyer belt of described the 1st transport unit and the 2nd transport unit is alternately set as the center by the described conveyer belt with the central authorities of the transport unit with the described conveyer belt of odd number bar in the middle of the 1st transport unit and the 2nd transport unit.

According to described explanation, the number of a certain side's of the 1st and the 2nd transport unit conveyer belt can be made as the odd number bar, the bar number of the opposing party's conveyer belt is made as the even number bar.

In addition, seven of invention be invention two in have following feature, that is, and the distance between the described conveyer belt of the described the 1st and the 2nd transport unit be set to than the described the 1st and the width of the described posting field of the 2nd shower nozzle longer.

According to described explanation, the ink droplet that sprays from the 1st and the 2nd shower nozzle when not having recording medium on conveyer belt can pass between conveyer belt reliably, thereby can suppress black liquid adhering on conveyer belt.

In addition, eight of invention be invention seven in have following feature, that is, connect the described the 1st and the summary journal zone of the described posting field of the 2nd shower nozzle be set to the length that covers with the width of the direction of the direction of transfer quadrature of the described recording medium that transmits by described recording medium connecting gear.

According to described explanation, record head is mutually not opposed with conveyer belt, and the summary journal zone of record head can cover the width of recording medium.So, even record head is from the Zone Full ejection ink droplet in summary journal zone, recording medium is not remained the Zone Full ground that border land as non-recorded part spreads all over recording surface carry out record, promptly carry out boundless record, also can avoid being attached to situation on the conveyer belt to the ink droplet that sprays outside the recording surface.

In addition, nine of invention be invention seven in have following feature, promptly, connect the described the 1st and the summary journal zone of the described posting field of the 2nd shower nozzle be set to narrower than the width of the direction of the direction of transfer quadrature of the described recording medium that transmits by described recording medium connecting gear, to the described the 1st and the outside of a certain side's of the 2nd transport unit outermost described conveyer belt prolong described summary journal zone and be provided with from the outstanding posting field of lateral margin of the direction of transfer quadrature of described recording medium.

According to described explanation, the 3rd shower nozzle can prolong the summary journal zone of the 1st and the 2nd shower nozzle.So record head can be from the Zone Full ejection ink droplet in the summary journal zone that has been extended, recording medium is not remained the Zone Full ground that border land as non-recorded part spreads all over recording surface carry out record, promptly carry out boundless record.

Ten of invention be invention nine in have following feature, promptly, described the 1st transport unit and the 2nd transport unit are drawn and are provided with the described conveyer belt that equates the bar number, described the 3rd shower nozzle be located at the outermost described conveyer belt that is in described the 1st transport unit the outside and with the opposed position of outermost described conveyer belt of described the 2nd transport unit, be in described the 2nd transport unit outermost described conveyer belt the outside and with the opposed position of outermost described conveyer belt of described the 1st transport unit on.

In addition, 11 of invention be invention nine in have following feature, promptly, the a certain side of described the 1st transport unit and the 2nd transport unit is set to than the opposing party and lacks 1 described conveyer belt, and described the 3rd shower nozzle is located at the outside separately of the described conveyer belt that becomes outermost both sides of transport unit of few 1 of the bar number of described conveyer belt.

In addition, 12 of invention be invention two in have following feature, that is, between at least one side's of described the 1st shower nozzle and the 2nd shower nozzle shower nozzle, be equipped with the described recording medium of restriction and float limiting mechanism from the recording medium that described conveyer belt floats.

According to described explanation, owing to the floating of recording medium under the record head is limited, so the interval that just can keep recording medium and record head rightly.

In addition, 13 of invention be invention 12 in have following feature, that is, described recording medium floats limiting mechanism by the roller that can constitute rotatably.

According to described formation, recording medium utilizes the outer peripheral face of rotatable roller to limit to float.

According to described explanation, therefore roller can not resisted the transmission of recording medium, thereby can not hinder the transmission of recording medium owing to can constitute rotatably.

In addition, 14 of invention be invention 13 in have following feature, that is, described roller possesses into a plurality of juts of radial extension on outer peripheral face.

According to described explanation, owing to can not make the side face integral body of roller, but area smaller projection portion is contacted with the recording surface of recording medium, therefore can reduce the damage of the recording surface of the record that is through with.

In addition, 15 of invention be invention 12 in have following feature, that is, between described shower nozzle with the opposed side of these shower nozzles along parallel when mobile with the direction of described direction of transfer quadrature, described roller is equipped on with overlooking and sees in the track of describing described side.

In addition, 16 of invention be invention 12 in have following feature, that is, the point of contact of described roller and described recording medium by according to seeing that the mode on the line that is located between the described shower nozzle between the nozzle that links these shower nozzles is set with overlooking.

According to described explanation, roller can limit floating of recording medium under the nozzle of record head, thereby can keep the interval of the recording surface of the nozzle of record head and recording medium rightly.

In addition, 17 of invention be invention 12 in have following feature, that is, the interval of described roller and described conveyer belt is set under described recording medium is present in situation between this roller and the conveyer belt, and described roller presses against distance on the described conveyer belt with described recording medium.

According to described formation, because recording medium pressed against on the conveyer belt by roller, therefore regardless of the thickness of recording medium, the interval that can keep the recording surface and the record head of recording medium rightly.

In addition, 18 of invention be invention 12 in have following feature, promptly, the interval of described roller and described conveyer belt is present between this roller and the conveyer belt and described recording medium has floated under the situation of specified rate from described conveyer belt at described recording medium, is set to the recording surface contact distance of described roller and described recording medium.

According to described formation, the outer peripheral face of roller only contacts with the recording surface of recording medium recording medium has floated the situation of specified rate from conveyer belt under, does not contact in floating under the situation less than specified rate of recording medium.

According to described explanation, in floating under the situation less than specified rate of recording medium, the damage of the recording surface of the record of can avoiding being through with.

In addition; 19 of invention be invention two in have following feature; promptly; and the described the 1st and the 2nd shower nozzle, set the described nozzle that will be formed on the described the 1st and the 2nd shower nozzle and covered and the shower nozzle protection mechanism of protection on the position between opposed conveyer belt across the transfer path of described recording medium.

According to described formation, the shower nozzle protection mechanism avoided conveyer belt ground across the transfer path of recording medium and with record head configuration opposed to each other mutually.

According to described explanation; just the shower nozzle protection mechanism can be closed under the transmission plane of recording medium; thereby realize the miniaturization of ink-jet recording apparatus; and carrying out under the situation of the record of recording medium; owing to can not hinder the transmission of recording medium; the shower nozzle protection mechanism is mutually opposed with the 1st and the 2nd shower nozzle in addition, therefore can promptly carry out the protection of record head.

In addition; 20 of invention be invention 19 in have following feature; promptly; be provided with the gap between the described conveyer belt of the described conveyer belt of described the 1st transport unit and described the 2nd transport unit, the width of described shower nozzle protection mechanism is set to the width that the described nozzle with the described the 1st and the 2nd shower nozzle all covers.

According to described explanation, the shower nozzle protection mechanism can not cover the nozzle of the 1st and the 2nd shower nozzle with omitting.

In addition; 21 of invention be invention 19 or 20 in have following feature; that is, described shower nozzle protection mechanism head end is risen from described retreating position to retreating position that the downside of the transfer path of described recording medium is kept out of the way, when shower nozzle protect and with shower nozzle protective position that described record head contacts between formation movably.

According to described explanation, the shower nozzle protection mechanism is kept out of the way and is not hindered the transmission of recording medium to retreating position under carrying out the situation of the record of recording medium, under situation about not writing down, slightly rises, thereby can protect record head.

In addition, 22 of invention be invention two in have following feature, promptly, and the described the 1st and the 2nd shower nozzle across the transfer path of described recording medium and between opposed conveyer belt on the position, set the black liquid of suction from described nozzle and the discharge performance that recovers black liquid discharge performance recovers mechanism.

According to described formation, discharge performance recovers mechanism and is avoided conveyer belt ground and dispose opposed to each other mutually with record head across the transfer path of recording medium.

According to described explanation, owing to discharge performance can be recovered under the transmission plane that mechanism closes at recording medium, can realize the miniaturization of ink-jet recording apparatus, and under the situation of carrying out to the record of recording medium, can not hinder the transmission of recording medium, in addition, it is mutually opposed with the 1st and the 2nd shower nozzle that discharge performance recovers mechanism, therefore can promptly carry out discharge performance and recover to handle.

In addition, invent 23 be invention 22 in have following feature, promptly, be provided with the gap between the described conveyer belt of the described conveyer belt of described the 1st transport unit and described the 2nd transport unit, the width that described discharge performance recovers mechanism is set to the width that the described nozzle with the described the 1st and the 2nd shower nozzle all covers.

According to described explanation, discharge performance recovers mechanism the nozzle of the 1st and the 2nd shower nozzle can not covered with omitting.

In addition, 24 of invention be invention 22 or 23 in have following feature, that is, described discharge performance recovers mechanism to be possessed the described nozzle that will be formed on the described the 1st and the 2nd shower nozzle and covers and the shower nozzle defencive function of protection.

According to described explanation, because recovering mechanism, discharge performance possesses the shower nozzle defencive function, therefore do not need that discharge performance is recovered mechanism and the shower nozzle protection mechanism is provided with respectively, can realize the miniaturization of ink-jet recording apparatus.

In addition, 25 of invention is a kind of ink-jet recording apparatus, be to possess: upload the put medium and the recording medium connecting gear that transmits at conveyer belt, set opposed to each other mutually with recording surface as the face of the opposite side of transmission plane of the described recording medium that transmits by this recording medium connecting gear and with the direction of the direction of transfer quadrature of described recording medium on arranged the nozzle of a plurality of ejection ink droplets and formed the jet recording device of posting field, it is characterized in that, described recording medium connecting gear has one at least and is keeping given compartment of terrain to draw a transport unit of establishing between these conveyer belts many conveyer belts between driving shaft that is set in parallel to each other and the driven shaft, described record head has described a plurality of nozzles is spreaded all over the formation of arranging with the Zone Full of the direction of the described direction of transfer quadrature of the described recording surface of described recording medium at least, and described record head across the transfer path of described recording medium and between the conveyer belt of opposed described transport unit on the position, be equipped with from and this conveyer belt between the black liquid of suction and the discharge performance that recovers black liquid discharge performance recovers mechanism the opposed opposed nozzle, and possess and make relative position that described record head and described discharge performance recover mechanism recover the relative moving mechanism that the opposed non-opposed nozzle of mechanism and this discharge performance recovery mechanism opposed mode relatively move according to making with described discharge performance.

According to described formation, discharge performance recovers mechanism and is avoided conveyer belt ground and set opposed to each other mutually with record head across the transfer path of recording medium.In addition, record head has in the face of the opposed nozzle between conveyer belt and does not recover the opposed non-opposed nozzle of mechanism with discharge performance, when the discharge performance that makes non-opposed nozzle recovered, the relative position that recovers mechanism with respect to discharge performance of record head was utilized relative moving mechanism and moves to and make non-opposed nozzle mutually opposed with discharge performance recovery mechanism.

According to described explanation, can be not only from the opposed nozzle of record head, and from non-opposed nozzle the black liquid of suction, recover discharge performance.In addition, discharge performance can be recovered under the transmission plane that mechanism closes at recording medium, and the essential number that discharge performance can be recovered mechanism is compressed in Min., thereby can realizes the miniaturization of ink-jet recording apparatus.

In addition, 26 of invention be invention 25 in have following feature, that is, described relative moving mechanism is the shower nozzle travel mechanism that moves described record head.

According to described explanation, can the moving recording head, make that to recover the opposed non-opposed nozzle of mechanism mutually opposed with discharge performance recovery mechanism with discharge performance.

In addition, 27 of invention be invention 25 in have following feature, that is, described relative moving mechanism is to move the discharge performance that described discharge performance recovers mechanism to recover travel mechanism.

According to described explanation, can recover mechanism by mobile discharge performance, make mutually opposed with discharge performance recovery opposed non-opposed nozzle of mechanism and discharge performance recovery mechanism.

In addition, 28 of invention is to have following feature in 25 to 27 any of invention, promptly, distance between described conveyer belt is set to longer than the width of described conveyer belt, and the width that described discharge performance recovers mechanism is constituted the nozzle of described opposed nozzle and boundary portion described non-opposed nozzle and the mode of described non-opposed nozzle covering when mutually opposed according to recover mechanism at described non-opposed nozzle and described discharge performance.

According to described formation, discharge performance recovers mechanism can repeatedly aspirate black liquid from the nozzle of the boundary portion of opposed nozzle and non-opposed nozzle.

According to described explanation, can from whole nozzle of record head, aspirate black liquid reliably and recover discharge performance.

In addition, 29 of invention is to have following feature in 22,23,25 to 27 any of invention, that is, described discharge performance recovers mechanism and is constituted by mobile mode between the discharge performance recovery position that contact with described record head according to head end can be risen from described retreating position at the retreating position of keeping out of the way to the downside of the transfer path of described recording medium, when discharge performance recovers.

According to described explanation, discharge performance recovers mechanism to be kept out of the way and not to hinder the transmission of recording medium to retreating position under carrying out the situation of the record of recording medium, under situation about not writing down, slightly rise, and discharge performance that can the recovery record head.

Description of drawings

Fig. 1 is the outside drawing of main composition of the ink-jet recording apparatus of expression embodiment 1.

Fig. 2 is the vertical view of the paper transport unit of embodiment 1.

Fig. 3 is the vertical view of main composition of the ink-jet recording apparatus of expression embodiment 1.

Fig. 4 is the figure of outward appearance of the record head of expression embodiment 1.

Fig. 5 is the block diagram of getting in touch between the control of major part of ink-jet recording apparatus of expression embodiment 1.

Fig. 6 is the figure of flow process of recording processing of the ink-jet recording apparatus of expression embodiment 1.

Fig. 7 is other the vertical view of paper transport unit of expression embodiment 1.

Fig. 8 is other the vertical view of ink-jet recording apparatus of expression embodiment 1.

Fig. 9 is other the vertical view of ink-jet recording apparatus of expression embodiment 1.

Figure 10 is other the vertical view of paper transport unit of expression embodiment 1.

Figure 11 is the outside drawing of main composition of the ink-jet recording apparatus of expression embodiment 2.

Figure 12 is the vertical view of the paper transport unit of embodiment 2.

Figure 13 is the vertical view of main composition of the ink-jet recording apparatus of expression embodiment 2.

Figure 14 is the figure of outward appearance of the record head of expression embodiment 2.

Figure 15 is the figure that schematically shows the C-C section among Figure 13.

Figure 16 is the block diagram of the contact between the control of major part of ink-jet recording apparatus of expression embodiment 2.

Figure 17 is the figure of flow process of the 1st boundless recording processing of expression embodiment 2.

Figure 18 is the figure of flow process of the 2nd boundless recording processing of expression embodiment 2.

Figure 19 is the figure of the flow process that the ejection of stopping up is handled between the prevention paper of expression embodiment 2.

Figure 20 is other the vertical view of paper transport unit of expression embodiment 2.

Figure 21 is other the vertical view of ink-jet recording apparatus of expression embodiment 2.

Figure 22 is other the vertical view of ink-jet recording apparatus of expression embodiment 2.

Figure 23 is other the vertical view of ink-jet recording apparatus of expression embodiment 2.

Figure 24 is the outside drawing of main composition of the ink-jet recording apparatus of expression embodiment 3.

Figure 25 is the vertical view of main composition of the ink-jet recording apparatus of expression embodiment 3.

Figure 26 is the figure that schematically shows the D-D section among Figure 25.

Figure 27 is the figure that schematically shows the E-E section among Figure 26.

Figure 28 is the front view of the ink-jet recording apparatus of embodiment 3.

Figure 29 is the figure that the 1st and the 2nd discharge performance of expression embodiment 3 recovers cap and nozzle face state of contact.

Figure 30 is the block diagram of the contact between the control of major part of ink-jet recording apparatus of expression embodiment 3.

Figure 31 is the figure of the flow process that discharge performance recover to be handled between the paper of expression embodiment 3.

Figure 32 is the figure of the formation of explanation the 1st and the 2nd shower nozzle protective cap.

Figure 33 is the figure of the flow process that shower nozzle protection is handled between the paper of expression embodiment 3.

Figure 34 is the outside drawing of main composition of the ink-jet recording apparatus of expression embodiment 4.

Figure 35 is the vertical view of the paper transport unit of embodiment 4.

Figure 36 is the block diagram of the contact between the control of major part of ink-jet recording apparatus of expression embodiment 4.

Figure 37 is the figure of outward appearance of the record head of expression embodiment 4.

Figure 38 is the figure of the formation of explanation shower nozzle travel mechanism.

Figure 39 is the figure that schematically shows the F-F section of Figure 34.

Figure 40 is the figure that the discharge performance recovery with opposed nozzle of explanation embodiment 4 is moved.

Figure 41 is the figure of the flow process that discharge performance recover to be handled between the paper of expression embodiment 4.

Figure 42 is the figure of the formation of explanation cap travel mechanism.

Figure 43 is the vertical view of main composition of the ink-jet recording apparatus of expression embodiment 5.

Figure 44 is the front view of main composition of the ink-jet recording apparatus of expression embodiment 5.

Figure 45 is the vertical view of paper transport unit of the ink-jet recording apparatus of expression embodiment 5.

Figure 46 is the figure that schematically shows the G-G section among Figure 43.

Figure 47 is the figure of the J-J section among expression Figure 43.

Figure 48 is the block diagram of the contact between the control of major part of ink-jet recording apparatus of expression embodiment 5.

Figure 49 is the upward view of the 1st record head group.

Figure 50 is other the vertical view of formation of the ink-jet recording apparatus of expression embodiment 5.

Figure 51 is other the front view of formation of the ink-jet recording apparatus of expression embodiment 5.

Figure 52 is the figure of the problem of explanation conventional art.

The specific embodiment

To describe embodiments of the present invention 1 based on accompanying drawing below.

The ink-jet recording apparatus 1 of embodiment 1 possesses the yellow, peony of the ink droplet of all kinds of a roller GR, static assigning unit EC, paper transport unit CV, ejection yellow, peony, dark green and black, dark green and black recording head HDY, HDM, HDC and HDK, row's paper EJ of portion as shown in Figure 1.

Here, described each details that constitutes is described.

Paper transport unit CV shown in Figure 2 as vertical view, possess driving shaft DS from transport unit CD-ROM drive motor M0 transferring power, parallel with driving shaft DS and across driving shaft DS ground be positioned at mutually opposition side the 1st, the 2nd driven shaft FS1, FS2, draw the 1st conveyer belt V1 on driving shaft DS and the 1st driven shaft FS1, draw the 2nd conveyer belt V2 on driving shaft DS and the 2nd driven shaft FS2, driving shaft DS and the 1st, the 2nd driven shaft FS1, FS2 can be remained in bearing BR on the not shown basket respectively rotatably.

In addition, though 1st, the 2nd driven shaft FS1, FS2 are not shown, but in order to apply tension force, make it not produce lax, and be applied with the power of equal extent in opposite direction across driving shaft DS ground drawing on the 1st and the 2nd conveyer belt V1, V2 between itself and the driving shaft DS.

The the 1st and the 2nd conveyer belt V1, V2 are made of 4 conveyer belt V1a～V1d, V2a～V2d respectively.In addition, conveyer belt V1a～V1d and V2a～V2d are on driving shaft DS, by along alternately being adjacent to set with Y direction as the direction of the directions X quadrature of the direction of transfer of record-paper P.

Here, there are the gap in conveyer belt V1a～V1d and conveyer belt V2a～V2d by driving shaft DS and the flange part FL that is located on the 1st, the 2nd driven shaft FS1, the FS2.That is, conveyer belt V1a～V1d and conveyer belt V2a～V2d are limited in driving shaft DS and are located at axial moving on the 1st, the 2nd driven shaft FS1, the FS2, configuration non-contiguously mutually.In addition, the width W 2 of the width W 1 of conveyer belt V1a～V1d and conveyer belt V2a～V2d is set to equal width.In addition, conveyer belt width W1, W2 and interband are set to H＞W1, W2 every H.And the height of flange part FL is in order to hinder the transmission of record-paper P, and is made into thinner than the thickness of conveyer belt V1a～V1d, V2a～V2d.

In addition, driving shaft DS, the 1st driven shaft FS1 and the 1st conveyer belt V1 constitute the 1st transport unit CV1, and driving shaft DS, the 2nd driven shaft FS2 and the 2nd conveyer belt V2 constitute the 2nd transport unit CV2.

In addition, when transport unit CD-ROM drive motor M0 starts, just transmitted to driving shaft DS from the power of the rotating shaft of transport unit CD-ROM drive motor M0, driving shaft DS is rotated.When driving shaft DS is rotated, will be to the 1st and the 2nd conveyer belt V1, V2 transferring power, the 1st conveyer belt V1 and the 2nd conveyer belt V2 are rotated with equal speed.Record-paper P on the outer peripheral face of the 1st and the 2nd conveyer belt V1, V2, is sent to 2nd driven shaft FS2 from the 1st driven shaft FS 1 by mounting.

Yellow, peony, dark green and black recording head HDY, HDM, HDC and HDK are the line shower nozzles with the posting field that equates with the paper width, as shown in Figure 1, respectively on paper transport unit CV, towards the 1st and the 2nd conveyer belt V1, V2 side be equipped with the nozzle of ejection ink droplet.In addition, dark green and black recording head HDC, HDK are equipped between the 1st driven shaft FS1 and the driving shaft DS as shown in Figure 3, and yellow and peony record head HDY, HDM are equipped between driving shaft DS and the 2nd driven shaft FS2.

Here, the arrangement of being located at the nozzle on record head HDY of all kinds, HDM, HDC, the HDK is described.

Fig. 4 is the figure of the outward appearance of the yellow record head HDY of expression, and Fig. 4 (a) is the A apparent direction front view among Fig. 3, and Fig. 4 (b) is a upward view.And, among this Fig. 4, in order to see nozzle easily clearly, the size of nozzle is illustrated large.

Yellow record head HDY shown in Fig. 4 (b), the yellow nozzle NZY of the black liquid that ejection is yellow on the same straight line of Y direction, spreaded all over paper width equal lengths be arranged on the nozzle face NZP.This yellow nozzle NZY that is arranged formation constitutes 1 nozzle rows NZYL.

For peony record head HDM, dark green record head HDC, black recording head HDK, owing to be and the identical formation of yellow record head HDY therefore omission to be described.And, as these record head HDY of all kinds, HDM, HDC, HDK, can adopt and utilize piezoelectric element, heating element heater etc. to give pressure and spray the record head of ink droplet black liquid.

Here, describe for the contact between the control of each major part of described ink-jet recording apparatus 1.

Ink-jet recording apparatus 1 is except described main composition, shown in Figure 5 as block diagram also possesses the sheet feed section KS that record-paper P is supplied with to door roller GR, the 1st and the 2nd paper test section PK1, the PK2 that detects record-paper P on the 1st and the 2nd transport unit CV1, CV2.The the 1st and the 2nd paper test section PK1, PK2 are the part of detection record paper P for the moment of the record of instrumentation record head HDY of all kinds, HDM, HDC, HDK, be equipped on respectively between the 1st driven shaft FS1 and the black recording head HDK and driving shaft DS and peony record head HDM between, constitute by sensors such as photo interrupters.

In addition, ink-jet recording apparatus 1 possesses the paper supply control part KSD of control sheet feed section KS, the door roller control part GRD of control gate roller GR, the static of control static assigning unit EC is given control part ECD, control the 1st and the 2nd paper test section PK1, the paper of PK2 detects control part PKD, the motor control part MD of control transport unit CD-ROM drive motor M0, control record head HDY of all kinds, HDM, HDC, the record head control part HDD of HDK, storage is from the recorded information storage part BF of the recorded information of external equipment, based on recorded information to described each control part GRD, ECD, PKD, MD, HDD sends the CPU of action command.

Below, will be described as follows for the action of the record of ink-jet recording apparatus 1.

Ink-jet recording apparatus 1 shown in Figure 1 when receiving the instruction of recorded information and record from external equipment, i.e. the action of opening entry.

When the action of record was begun, record-paper P was just one by one supplied with to door roller GR from the not shown carton that maintains many record-paper P by sheet feed section KS.

Corrected the inclination on the directions X, the position skew of Y direction by the record-paper P that supplies with to door roller GR by door roller GR, CV sends to the paper transport unit.

Record-paper P by from door roller GR during paper transport unit CV sends, EC is charged by the static assigning unit.

Because of charged record-paper P with the absorption affinity on conveyer belt because of being transmitted the CD-ROM drive motor M0 of portion rotating driveshaft DS, and be adsorbed on the outer peripheral face of the 1st conveyer belt V1 on the 1st transport unit CV1 that the 1st conveyer belt V1 is seen rotated in the counterclockwise direction in Fig. 1, transmitted by power, under the guiding black recording head HDK from transport unit CD-ROM drive motor M0.

Before record-paper P arrived under the black recording head HDK, the 1st paper test section PK1 detected record-paper P, and the 1st paper detection signal that expression has been detected record-paper P sends to CPU.

CPU calculates the moment of beginning black and dark green record based on the 1st paper detection signal from the 1st paper test section PK1, sends black, dark green recording instruction to record head control part HDD successively.

Record head control part HDD is at first based on the recording instruction of black, control black recording head HDK, by the 1st transport unit CV1 on the recording surface PP of the record-paper P that moves continuously under the nozzle face NZP, from black nozzles NZK, optionally spray ink droplet and carry out the record of black based on recorded information.

Then, parallel with the control of black recording head HDK, based on dark green recording instruction, utilize record head control part HDD to control dark green record head HDC from CPU, carry out dark green record.

The record-paper P that has carried out black and dark green record is passed on to the 2nd conveyer belt V2 successively from the 1st conveyer belt V1 on driving shaft DS, under the 2nd transport unit CV2 guiding peony record head HDM.

Before record-paper P arrived under the peony record head HDM, the 2nd paper test section PK2 detected record-paper P, and the 2nd paper detection signal that expression has been detected record-paper P sends to CPU.

CPU sends the recording instruction of peony, yellow successively based on the 2nd paper detection signal from the 2nd paper test section PK2 to record head control part HDD.

Record head control part HDD controls peony record head HDM, yellow record head HDY successively concurrently, implements peony and yellow record.

When record end of all kinds, promptly finish for the record of 1 record-paper P, this record-paper P is arranged the EJ of paper portion and is discharged outside ink-jet recording apparatus 1.

Here, when at the record end of whole recorded informations, operation of recording promptly finishes, and when also residue has Unrecorded recorded information, then new record-paper P is supplied with to door roller GR, and the continuation operation of recording is until the record end at whole recorded informations.

In the ink-jet recording apparatus 1 of embodiment 1, be illustrated for recording processing to the enterprising line item of record-paper P.This recording processing is divided into the record of the yellow of the record of the black that utilizes black recording head HDK, the dark green record that utilizes dark green record head HDC, the wine-colored record that utilizes peony record head HDM and the yellow record head HDY of utilization, and each record head is controlled respectively and carried out.So, the flow process of the recording processing of each color is described.

When the ink-jet recording apparatus 1 of embodiment 1 from the instruction of external equipment receiving record information and record and with record-paper P when door roller GR supplies with, promptly begin the recording processing of black shown in Figure 6.

At first, in step S1, read in the paper detection signal of the 1st paper test section PK1 and transfer to step S2.

Then, in step S2, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the head end of record-paper P, when being judged to be when detecting head end, then transfer to step S3, when being judged to be when not detecting, then transfer to step S1, read in the paper detection signal.

Then, in step S3, the timer of the time T 1 that the starting instrumentation begins behind the head end that detects record-paper P is transferred to step S4.

Then, in step S4, the instrumentation time T 1 of judging timer whether with preset time Ts1 consistent, when being judged to be unanimity, then transfer to step S5, when being judged to be when inconsistent, then carry out step S4 repeatedly, until unanimity.

Then, in step S5, carry out the record of black recording head HDK, transfer to step S6.

Then, in step S6, replacement timer and end process.

Dark green recording processing is except in Fig. 6, the timer 1 of step S3, S6 is made as timer 2, the black recording head HDK of step S5 is made as dark green record head HDC, among the step S4, whether the instrumentation time T 2 of judging timer 2 is with beyond given time T s2 is consistent, identical with the recording processing of black, omit with accompanying drawing and to the explanation of each contents processing.

In addition, the recording processing of peony and yellow is except in Fig. 6, the 1st paper test section PK1 of step S 1 is made as the 2nd paper test section PK2, timer 1, instrumentation time T 1, given time T s1 are made as respectively beyond timer 3 and 4, instrumentation time T 3 and T4, the given time T s3 and Ts4, identical with black and dark green recording processing, therefore will describe omission in detail.

And in Fig. 1, record-paper P is corresponding with recording medium.

According to embodiment 1, owing to the 1st and the 2nd conveyer belt V1, V2 are rotated with identical speed by public driving shaft DS, so recording medium is transmitting with identical speed on the 1st conveyer belt V1 with on the 2nd conveyer belt V2.

In addition, the 1st and the 2nd conveyer belt V1, V2 with will compare with the situation that 1 conveyer belt constitutes from the identical transmitting range of the 1st driven shaft FS1 to the 2 driven shaft FS2, can constitute girth shortlyer.That is, when comparing to applying identical tension force than the 1st and the 2nd conveyer belt V1, the longer conveyer belt of V2 girth with the 1st and the 2nd conveyer belt V1, V2, the degree of the stretching, extension of the 1st and the 2nd conveyer belt V1, V2 that girth is shorter is littler.So, can reduce the stretching, extension of the conveyer belt that the rotation because of driving shaft DS produces.

In addition, for the situation that is applied in identical tension force, when to by draw around axle between the amount of bow of conveyer belt when comparing, then compare with the longer conveyer belt of girth, shorter the 1st and the 2nd conveyer belt V1, the V2 of the distance between the axle is littler.That is, can reduce the tension force that is applied in order to suppress this amount of bow on the conveyer belt.So the bending of the axle that the power by being subjected to from the 1st and the 2nd conveyer belt V1, V2 of driving shaft DS and the 1st, the 2nd driven shaft FS1, FS2 causes is reduced.

In addition, because the bar number of the 1st conveyer belt V1 is identical with the bar number of the 2nd conveyer belt V2, if therefore apply equal power in opposite direction and provide tension force across driving shaft DS to the 1st and the 2nd conveyer belt V1, V2 to the 1st, the 2nd driven shaft FS1, FS2, then the power that is applied on the driving shaft DS can be offset between the tension force of the 1st and the 2nd conveyer belt V1, V2, reduce the bending of driving shaft DS.

According to described explanation, can suppress the driving shaft that causes by the vibration of the conveyer belt between change, driving shaft and the driven shaft of the transfer rate of the flexible recording medium that causes of conveyer belt, by the tension force of conveyer belt and bending of driven shaft etc., realize the further raising of recording quality, and can not damage the transmission interval that recording quality ground prolongs recording medium.

And, in the embodiment 1, in the 1st and the 2nd conveyer belt V1, V2, though the width W 1 of conveyer belt V1a～V1d and the width W 2 of conveyer belt V2a～V2d are made as on an equal basis, make conveyer belt width W1, W2 and interband satisfy H＞W1, W2 every the relation of H, but be not limited thereto, a certain side's the width that also can make width W 1 and W2 is greater than the opposing party's width.That is, can be by paper transport unit CV be constituted according to the mode that makes W2＞W1 as illustrated in fig. 7, and make the interband of the 2nd transport unit CV2 narrower than described H every H2.

In addition, this ink-jet recording apparatus 1 that has possessed paper transport unit CV as shown in Figure 8, yellow, peony and dark green record head HDY, HDM, the HDC of the colored record head of the conduct in the middle of record head HDY of all kinds, HDM, HDC, the HDK are equipped on the 2nd transport unit CV2.In addition, black recording head HDK is equipped on the 1st transport unit CV1.

According to described formation, in making of file etc. in the record of the more colour that is required the recording quality higher of the situation of shorthand than the record of black, the flatness of the record-paper P under colored record head HDY, HDM, the HDC can be improved, thereby recording quality can be further improved.

And, in the embodiment 1,, be not limited thereto though be that example is illustrated with record-paper P as recording medium, also go for the recording medium beyond the paper.For example,, go for resin or metal etc.,, go for the shape of circle or abnormity etc., in addition, go for the medium that high material of flexibility or low material etc. have various character as shape as material.

In addition,, be not limited thereto, also can minimumly respectively constitute with 1 though the 1st and the 2nd conveyer belt V1, V2 are constituted with 4 conveyer belt V1a～V1d, V2a～V2d respectively.From the recording surface PP of record-paper P as far as possible flatly stably can being transmitted, the viewpoint that obtains good record result considers that preferably each constitutes with many.

In addition, the 1st and the 2nd conveyer belt V1, V2 are directly drawn formation on driving shaft DS and the 1st, the 2nd driven shaft FS1, the FS2, be not limited thereto though adopted.That is, also can followingly constitute, that is, the 1st and the 2nd conveyer belt V1, V2 are made as synchronous band, on driving shaft DS and the 1st, the 2nd driven shaft FS1, FS2, synchronous band pulley is set, be with pulley to the 1st and the 2nd conveyer belt V1, V2 transferring power synchronously by this.

In addition, in the present embodiment, though the 1st and the 2nd conveyer belt V1 and V2 are constituted with 4 conveyer belt V1a～V1d, the V2a～V2d of identical number respectively, but be not limited thereto, also can be as shown in figure 10, the 1st conveyer belt V1 is constituted with 3 conveyer belt V1a～V1c, the 2nd conveyer belt V2 is constituted with 4 conveyer belt V2a～V2d.

At this moment, the 1st conveyer belt V1 and the 2nd conveyer belt V2 are the center with the conveyer belt V1b as the central authorities of the conveyer belt V1a～V1c of odd number bar, alternately set on driving shaft DS.

The ink-jet recording apparatus 10 that possesses the paper transport unit CV with formation shown in Figure 10 as shown in Figure 9, reason for the flatness that can improve the record-paper P in the colored record, colored record head HDY, HDM, HDC are equipped on the 2nd transport unit CV2 that possesses 4 conveyer belt V2a～V2d, and black recording head HDK is equipped on the 1st transport unit CV1.

According to described explanation, if apply equal power in opposite direction and provide tension force across driving shaft DS ground to the 1st and the 2nd conveyer belt V1, V2 to the 1st, the 2nd driven shaft FS1, FS2, then the power that is applied on the driving shaft DS will be offset between the tension force of the 1st and the 2nd conveyer belt V1, V2, and link the 1st conveyer belt V1 tension force make a concerted effort and the direction of the application point of making a concerted effort of the tension force of the 2nd conveyer belt V2 and the direction of making a concerted effort consistent and suppressed the generation of couple on driving shaft DS, thereby can further suppress the bending of driving shaft DS.

And the bar number of conveyer belt is not limited to 3 and 4 of the 2nd conveyer belt V2 of the 1st conveyer belt V1, Duos 1 as long as a certain side of the 1st conveyer belt V1 and the 2nd conveyer belt V2 is set to than the opposing party.

Based on accompanying drawing embodiments of the present invention 2 are described.

The ink-jet recording apparatus 100 of embodiment 2 as shown in figure 11, paper transport unit CV possesses the 1st transport unit CV1, by the 2nd transport unit CV2 that drives independently with the 1st transport unit CV1, record head is made of the 2nd record head group HD2 that is equipped on the 1st record head group HD1 on the 1st transport unit CV1 and be equipped on the 2nd transport unit CV2, and under paper transport unit CV, be equipped with black liquid absorbent portion PD, in addition, have the formation identical with embodiment 1.

So, for the counterpart of embodiment 1, use same-sign, omission will be described.

Paper transport unit CV shown in Figure 12 as vertical view, the 2nd transport unit CV2 possesses the 2nd driving shaft DS2 and the 2nd transport unit CD-ROM drive motor M2, is constituted independently with the 1st transport unit CV1.And in the present embodiment, driving shaft and transport unit CD-ROM drive motor that the 1st transport unit CV1 is possessed are called the 1st driving shaft DS1 and the 1st transport unit CD-ROM drive motor M1 respectively, to embody and the driving shaft of the 2nd transport unit CV2 and the difference of transport unit CD-ROM drive motor.

In addition, lax not produce though the 1st, the 2nd driven shaft FS1, FS2 are not shown for to drawing the 1st and the 2nd conveyer belt V1, V2 to apply tension force around between the 1st and the 2nd driving shaft DS1, the DS2, and be applied in power in updrift side respectively.

The the 1st and the 2nd conveyer belt V1, V2 are made of 4 conveyer belt V1a～V1d, V2a～V2d respectively.In addition, conveyer belt V1a～V1d and V2a～V2d be not for overlapping on the directions X as the direction of transfer of record-paper P, and as with the Y direction of directions X quadrature on alternately set.In addition, the 1st and the 2nd transport unit CV1, CV2 are set to the transmission plane that makes as the face of the opposite side with recording surface PP of record-paper P shown in Figure 11 is becoming same plane on the 1st conveyer belt V1 and on the 2nd conveyer belt V2.

Paper transport unit CV with described formation is promptly transmitted to the 1st driving shaft DS1 from the power of the rotating shaft of the 1st transport unit CD-ROM drive motor M1 when the 1st transport unit CD-ROM drive motor M1 starts, and the 1st driving shaft DS1 is rotated.When the 1st driving shaft DS1 was rotated, power was promptly transmitted to the 1st conveyer belt V1, and record-paper P on the outer peripheral face of the 1st conveyer belt V1, is sent to 1st driving shaft DS1 from the 1st driven shaft FS1 by mounting.

The record-paper P quilt that is transferred into the 1st driving shaft DS1 is sent on the outer peripheral face of the 2nd conveyer belt V2 of the power rotation of utilization and synchronously driven the 2nd transport unit CD-ROM drive motor M2 of the 1st transport unit CD-ROM drive motor M1, is sent to the 2nd driving shaft DS2 from the 2nd driven shaft FS2.

Shown in Figure 13 as the vertical view of ink-jet recording apparatus 100 of the 1st and the 2nd record head group HD1, HD2 is made of record head HD1a～HD1c, the HD3a and HD2a～HD2c, the HD3b that are equipped on the 1st and the 2nd transport unit CV1, the CV2 respectively.In addition, the record head HD1a～HD1c in the middle of the 1st record head group HD1 be equipped between the 1st driven shaft FS 1 and the 1st driving shaft DS 1 and the conveyer belt of conveyer belt V1a～V1d between on the opposed position.In addition, the record head HD2a～HD2c in the middle of the 2nd record head group HD2 be equipped between the 2nd driven shaft FS2 and the 2nd driving shaft DS2 and the conveyer belt of conveyer belt V2a～V2d between on the opposed position.Record head HD3b is adjacent to aligned configuration across conveyer belt 2a and record head HD2a.

Here, describe for the arrangement of being located at the nozzle on record head HD1a～HD1c, HD2a～HD2c, HD3a, the HD3b.

Figure 14 is the figure of the outward appearance of expression record head HD1a, and Figure 14 (a) is the B apparent direction front view among Figure 13, and Figure 14 (b) is a upward view.And, among this Figure 14, in order to see nozzle easily clearly, the size of nozzle is illustrated large, and number is reduced.

Record head HD1a～HD1c, HD2a～HD2c, HD3a, HD3b possess the black nozzles NZK of the black liquid of the yellow nozzle NZY, the peony nozzle NZM of the wine-colored black liquid of ejection, the dark green nozzle NZC that sprays dark green black liquid and the ejection black that spray yellow black liquid shown in Figure 14 (b).

Nozzle NZY, NZM, NZC, NZK of all kinds is arranged on the directions X that is formed at as the direction of transfer of record-paper P, and arrange be formed at as with the Y direction of the direction of direction of transfer quadrature on and constitute yellow nozzle row NZYL, peony nozzle rows NZML, dark green nozzle rows NZCL and black nozzles row NZKL.

Promptly, when the 1st record head group HD1 shown in Figure 13 is moved along directions X is parallel, when making the 1st and the 2nd record head group HD1, HD2 proper alignment, the yellow nozzle NZY of record head HD1a～HD1c and HD3a and record head HD2a～HD2c and HD3b, peony nozzle NZM, dark green nozzle NZC, black nozzles NZK just uniformly-spaced to arrange, are constituted 1 nozzle rows of all kinds by the width of the Y direction of leap the 1st record head group HD1 and the 2nd record head group HD2.

And, as the 1st and the 2nd record head group HD1, HD2, can adopt and utilize piezoelectric element, heating element heater etc. that black liquid is exerted pressure and spray the record head of ink droplet.

In addition, the 1st and the 2nd record head group HD1, HD2 separately as shown in figure 16, drive by record head control part HDD control.

China ink liquid absorbent portion PD is as shown in Figure 15 (a) of the figure that schematically shows the C-C section among Figure 13, at the downside of conveyer belt V1a～V1d, V2a～V2d, set opposed to each other mutually with record head HD1a～HD1c, HD2a～HD2c, HD3a, HD3b across the transfer path PC ground of record-paper P.This China ink liquid absorbent portion PD is made of the high material of ability of absorption liquid such as felt, sponge, when carrying out boundless record described later, will be from record head HD1a～HD1c, HD2a～HD2c, HD3a, HD3b to the black liquid absorption of the outer ejection in zone of the recording surface PP of record-paper P.And, among this Figure 15, constitute in order to understand easily, since the 1st driving shaft DS 1 diagram in downstream is omitted.

Here, record head HD3a, HD3b have record head HD1a～HD1c, the HD2a～HD2c wideer width of specific surface between conveyer belt shown in Figure 15 (b).In addition, record head HD1a～HD1c, HD2a～HD2c, HD3a, HD3b are shown in Figure 15 (b), by the crosscut record-paper P ground leap distance ground configuration longer than the width of the Y direction of record-paper P.That is, the summary journal zone of the Y direction that is made of record head HD1a～HD1c and HD2a～HD2c is set to narrower than the width of the Y direction of record-paper P, is recorded a HD3a and HD3b and prolongs.In addition, be recorded summary journal zone that a HD3a, HD3b prolonged by crosscut record-paper P be set at the longer distance of width than the Y direction of record-paper P.

In addition, H is by following formation at interval for shower nozzle, and shown in Figure 15 (a), the width that is set to record head HD1a～HD1c, the HD2a～HD2c of specific surface between conveyer belt is wideer.So, even when on transfer path PC, not having record-paper P from spraying ink droplet towards the record head HD1a～HD1c between conveyer belt, HD2a～HD2c, this ink droplet can not be attached on conveyer belt V1a～V1d, the V2a～V2d yet, thereby can arrive black liquid absorbent portion PD reliably.

Ink-jet recording apparatus 100 with described formation when receiving the instruction of recorded information and record from external equipment, i.e. the action of opening entry, identical with described embodiment 1, the 1st transport unit CV1 leads record-paper P under the 1st record head group HD1.

At this moment, CPU in the moment of instrumentation recording start, makes record head control part HDD control the 1st record head group HD1 based on the 1st paper detection signal by the 1st paper test section PK1 output, from nozzle NZY, NZM of all kinds, NZC, NZK, spray ink droplet, implement the 1st record based on recorded information.

After this, the record-paper P that has carried out the 1st record is led by the 2nd transport unit CV2 under the 2nd record head group HD2, and is identical with the 1st record, based on the moment from the 2nd paper detection signal of the 2nd paper test section PK1, utilizes the 2nd record head group HD2 to implement the 2nd record.

In this ink-jet recording apparatus 100, on record-paper P not remaining as Unrecorded part the edge and the processing that spreads all over the boundless record that writes down on the Zone Full ground of recording surface PP describe.This boundless recording processing is that the 1st and the 2nd record head group HD1, HD2 are controlled respectively and the processing carried out individually.So, be divided into the processing of the processing of the 1st record head group HD1 and the 2nd record head group HD2 and flow process be described.

The ink-jet recording apparatus 100 of embodiment 2 is when receiving the instruction of boundless record from external equipment, and CPU just begins to utilize the 1st boundless recording processing of the 1st record head group HD1 shown in Figure 17.

In the 1st boundless recording processing, at first, in step S201, based on from the recorded information of external equipment and the instruction of boundless record, to write down the size optimization according to the size that makes the image that forms by ejection greater than the mode of the size of the recording surface PP of the record-paper P of designated size, and transfer to step S202 from the ink droplet of nozzle NZY, NZM, NZC, NZK.Here, the size that makes image greater than the reason of the size of the recording surface PP of record-paper P is, even record-paper P is transmitted slightly obliquely at directions X, the size of image also can comprise this inclination and the Zone Full of recording surface PP is carried out record.

Then, in step S202, the record-paper P of designated size is located at the mode of substantial middle portion of width of the Y direction of the image that has been optimized among the step S201 according to the central portion of the width of the Y direction that makes this record-paper P, supplies with and transfer to step S203 to door roller GR.

Then, in step S203, read in the paper detection signal that obtains by the 1st paper test section PK1 and transfer to step S204.

Then, in step S204, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the head end of record-paper P, when being judged to be when having detected head end, transfer to step S205, when being judged to be when not detecting, transfer to step S203, read in the paper detection signal.

Then, in step S205, the timer of the time T 1 that the starting instrumentation begins behind the head end that detects record-paper P is transferred to step S206.

Then, in step S206, the instrumentation time T 1 of judging timer whether with preset time Ts1 consistent, when being judged to be unanimity, then transfer to step S207, when being judged to be when inconsistent, then carry out step S206 repeatedly, until unanimity.

Then, in step S207, based on the record size that has been optimized in step S201, record head control part HDD controls the 1st record head group HD1, from nozzle NZY, NZM, NZC, NZK, optionally spray ink droplet and carry out the 1st record, transfer to step S208.

Then, in step S208, timer is reset and end process.

The 2nd boundless processing of the 2nd record head group HD2 is in the 1st boundless recording processing of the 1st record head group HD1 as shown in figure 18, has omitted the formation of step S201 and S202, and therefore each content of handling will illustrate omission owing to identical with the 1st boundless recording processing.

When finishing the 1st and the 2nd boundless recording processing, to promptly not finishing of the recording surface PP of record-paper P as the boundless record at the edge of Unrecorded part.

In the present embodiment, record-paper P is corresponding with recording medium, the processing of the step S207 of the 1st record head group HD1 and Figure 17 is corresponding with the 1st jet head sets, the processing of the step S225 of the 2nd record head group HD2 and Figure 18 is corresponding with the 2nd jet head sets, record head HD1a～HD1c is corresponding with the 1st shower nozzle, record head HD2a～HD2c is corresponding with the 2nd shower nozzle, and record head HD3a, HD3b are corresponding with the 3rd shower nozzle, and conveyer belt V1d and V2a are corresponding with outermost conveyer belt.

According to described explanation, the the 1st and the 2nd record head group HD1, HD2 be by crossing over than the longer distance ground of the width of record-paper P to record-paper P ejection ink droplet, just can not residual border land as Unrecorded part spreads all over the boundless record of the Zone Full of recording surface PP.In addition, when carrying out this boundless record, can avoid being attached to the situation on conveyer belt V1a～V1d, the V2a～V2d reliably to the ink droplet that sprays outside the recording surface PP.

In addition, by paper transport unit CV is constituted with length short the 1st and the 2nd transport unit CV1, CV2, can prevent to transmit the lax of band in the way and recording medium is correctly transmitted along tabular surface.

In the ink-jet recording apparatus 100 of embodiment 2, describe for following situation, promptly, when on different record-paper P, writing down continuously, between these different record-paper P from the 1st and the 2nd record head HD1, HD2 and record irrespectively spray ink droplet and the ejection of carrying out stopping up between the prevention paper of pre-anti-clogging is handled.It is that the 1st and the 2nd record head group HD1, HD2 are controlled respectively and the processing carried out individually that the ejection of stopping up between this prevention paper is handled, and the flow process of control separately is identical.So only the flow process for the processing of the 1st record head group HD1 is elaborated.

The ink-jet recording apparatus 100 of embodiment 2 is when the 1st record head group HD1 opening entry, and the ejection that promptly begins to stop up between prevention paper shown in Figure 19 is handled.

During the ejection of stopping up between this prevention paper is handled, at first, in step S241, read in the paper detection signal of the 1st paper test section PK1 and transfer to step S242.

Then, in step S242, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the rear end of record-paper P, when being judged to be when detecting the rear end, then transfer to step S243, when being judged to be when not detecting, then transfer to step S241, read in the paper detection signal.

Then, in step S243, the timer of the time that the starting instrumentation begins behind the rear end that detects record-paper P is transferred to step S244.

Then, in step S244, the instrumentation time T of judging timer whether with preset time Ts consistent, when being judged to be unanimity, then transfer to step S245, when being judged to be when inconsistent, then carry out step S244 repeatedly, until unanimity.

Then, in step S245, from the 1st record head group HD1, irrespectively spray ink droplet and pre-anti-clogging, transfer to step S246 with record.

Then, in step S246, read in the paper detection signal of the 1st paper test section, transfer to step S247.

Then, in step S247, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the head end of new record-paper P,, then transfer to step S248 when being judged to be when detecting head end, when being judged to be when not detecting, then transfer to step S245.

Then, in step S248, timer is reset and end process.

Among this Figure 19, the processing of step S245 is corresponding with the 1st shower nozzle.

In addition, in Figure 12 and Figure 15, interband is corresponding with the distance between conveyer belt every H.

According to described explanation, do not exist under the situation of recording medium on the conveyer belt, even record head and record irrespectively spray the pre-anti-clogging ejection of ink droplet, the ink droplet that also can avoid reliably being sprayed is attached to the situation on the conveyer belt.In addition, under the situation that record head writes down and carry out not needing to change the position of record head under the situation of pre-anti-clogging ejection, can finish pre-anti-clogging ejection at short notice.

In addition, when writing down might as well, carry out discharge performance when recover handling might as well owing to do not need the moving recording head, therefore can eliminate reliability problems for moving recording head essential mechanism components or complicated control with regard to not needing.

And, in the embodiment 2,, be not limited thereto though be that example is illustrated with record-paper P as recording medium, also go for the recording medium beyond the paper.For example,, go for resin or metal etc.,, go for the shape of circle or abnormity etc., in addition, go for the medium that high material of flexibility or low material etc. have various character as shape as material.

In addition, in the embodiment 2,, be not limited thereto, also can minimumly respectively constitute with 1 though the 1st and the 2nd conveyer belt V1, V2 are constituted with 4 conveyer belt V1a～V1d, V2a～V2d respectively.From the recording surface PP of record-paper P as far as possible flatly stably can being transmitted, the viewpoint that obtains good record result considers that preferably each constitutes with many.

In addition, the 1st and the 2nd conveyer belt V1, V2 are directly drawn formation on driving shaft DS1, DS2 and the 1st, the 2nd driven shaft FS1, the FS2, be not limited thereto though adopted.Promptly, also can followingly constitute, that is, the 1st and the 2nd conveyer belt V1, V2 are made as synchronous band, on the 1st and the 2nd driving shaft DS1, DS2 and the 1st, the 2nd driven shaft FS1, FS2, synchronous band pulley is set, is with pulley to the 1st and the 2nd conveyer belt V1, V2 transferring power synchronously by this.

In addition, black liquid absorbent portion PD then also can be equipped on the inboard of the wheel of conveyer belt V1a～V1d, V2a～V2d so long as do not hinder the position of the transmission of record-paper P at transfer path PC downside.Under this situation, also can make black liquid absorbent portion PD further near the nozzle face NZP of the 1st and the 2nd record head group HD1, HD2.So, for example be attached with foreign matters such as paper powder on the nozzle face NZP and the flight path of ink droplet is bent etc. under the situation, can before arriving the inner peripheral surface of conveyer belt V1a～V1d, V2a～V2d, ink droplet stop ink droplet reliably.

In addition, in the embodiment 2, though paper transport unit CV is constituted with the 1st and the 2nd transport unit CV1, CV2, to utilizing the 1st and the 2nd transport unit CD-ROM drive motor M1, M2 to drive independently separately, but be not limited thereto, also the side of the 1st and the 2nd driving shaft DS1, DS2 can be driven with motor, with its revolving force by by chain and sprocket wheel, synchronously band and synchronously band transmit to the opposing party with the Poewr transmission mechanism that pulley etc. constitutes.

In addition, in the embodiment 2, though the bar number of the 1st conveyer belt V1 and the 2nd conveyer belt V2 is set at similar number, be not limited thereto, also the bar number that a certain side's bar number can be set at than the opposing party lacks 1.That is, as shown in figure 20, the 2nd transport unit CV2 can be constituted with 4 conveyer belts, the 1st transport unit CV1 be used lack 3 conveyer belts of 1 than the 2nd transport unit CV2 and constitute.At this moment, the 1st conveyer belt V1 and the 2nd conveyer belt V2 are the center by the conveyer belt with the central authorities of the 1st conveyer belt V1 of odd number bar, alternately do not set along the Y direction overlappingly on directions X.

The 1st record head group HD1 as shown in figure 21, between the 1st driven shaft FS1 and driving shaft DS1, by being equipped on record head HD1a, HD1b, being constituted by the record head HD3a, the HD3b that set alignedly with record head HD1a, HD1b respectively across the outermost conveyer belt V1a of the 1st conveyer belt V1 and the outside of V1c between conveyer belt towards the position between the conveyer belt of the 1st conveyer belt V1.In addition, the 2nd record head group HD2 have between the 2nd driven shaft FS2 and the driving shaft DS2 on the position between the conveyer belt of the 2nd conveyer belt V2, set the formation of record head HD2a～HD2c.

And in Figure 20 and Figure 21, conveyer belt V1a and V1c are corresponding with outermost conveyer belt.

In addition, in Figure 21, record head HD1a, HD1b are corresponding with the 1st shower nozzle, and record head HD2a～HD2c is corresponding with the 2nd shower nozzle, and record head HD3a, HD3b are corresponding with the 3rd shower nozzle, and the 1st and the 2nd record head group HD1, HD2 are corresponding with the 1st and the 2nd jet head sets.

According to described explanation, compare with described ink-jet recording apparatus shown in Figure 13 100, can cut down the number of the record head that constitutes record head and the bar number of conveyer belt.

In addition, in the present embodiment, though with the paper transport unit CV that constitutes by the 1st transport unit CV1, with driven independently the 2nd transport unit CV2 of the 1st transport unit CV1 is that example is illustrated, and is not limited thereto, and also can use the paper transport unit CV shown in Figure 2 of embodiment 1.

That is, possessed embodiment 1 paper transport unit CV shown in Figure 2 ink-jet recording apparatus 110 as shown in figure 22, the 1st and the 2nd conveyer belt V1, V2 are driven by public transport unit CD-ROM drive motor M0 and driving shaft DS.

According to this ink-jet recording apparatus 110, not only can have the effect identical, and compare with ink-jet recording apparatus 100 with ink-jet recording apparatus 100, the formation of paper transport unit CV can be oversimplified.In addition, because the 1st and the 2nd conveyer belt V1, V2 are driven by public transport unit CD-ROM drive motor M0 and driving shaft DS, therefore record-paper P is transmitted with identical speed under the 1st and the 2nd record head group HD1, HD2, thereby can suppress the difference of the recording quality that caused by the 1st and the 2nd record head group HD1, HD2.

And, in this ink-jet recording apparatus 110,, be not limited thereto though the bar number of the conveyer belt of the 1st conveyer belt V1 and the 2nd conveyer belt V2 is made as similar number, also the bar number that a certain side's bar number can be set at than the opposing party lacks 1.That is the paper transport unit CV shown in Figure 10 that, also can possess embodiment 1.The ink-jet recording apparatus 111 that has possessed paper transport unit CV shown in Figure 10 as shown in figure 23, and is identical with the formation of Figure 21 beyond the formation of paper transport unit CV, uses same-sign for the part corresponding with Figure 21, and omission will be described.

According to described explanation, if to the 1st, the 2nd driven shaft FS1, FS2 applies equal power and to the 1st and the 2nd conveyer belt V1 in opposite direction across driving shaft DS ground, V2 provides tension force, the the 1st and the 2nd conveyer belt V1 then, the power that is applied on the driving shaft DS will be offset between the tension force of V2, and link the 1st conveyer belt V1 tension force make a concerted effort and the direction of the application point of making a concerted effort of the tension force of the 2nd conveyer belt V2 and the direction of making a concerted effort consistent and suppressed the generation of couple on driving shaft DS, thereby can further suppress the bending of driving shaft DS, realize the raising of further recording quality.

Based on accompanying drawing embodiments of the present invention 3 are described.

The ink-jet recording apparatus 1000 of embodiment 3 is set at record head HD1a～HD1c and HD2a～HD2c equal respectively except the width with the Y direction of the record head HD3a of the ink-jet recording apparatus shown in Figure 22 110 of embodiment 2 and HD3b, and omitted black liquid absorbent portion PD, as shown in figure 24, possess the 1st and the 2nd discharge performance and recover beyond cap CA1 and the CA2, have the formation identical with ink-jet recording apparatus 110.

So, for the part corresponding, use same-sign with ink-jet recording apparatus 110, omission will be described.

The the 1st and the 2nd record head group HD1, HD2 are made of the record head HD1a～HD1d and the HD2a～HD2d that are equipped on the 1st and the 2nd transport unit CV1, the CV2 respectively as shown in figure 25.In addition, the record head HD1a～HD1c in the middle of record head HD1a～HD1d is being equipped on towards the position between the conveyer belt of conveyer belt V1a～V1d between the 1st driven shaft FS1 and the driving shaft DS.Record head HD1d is by adjacent with record head HD1c and set alignedly across conveyer belt V1d.In addition, the record head HD2b～HD2d in the middle of record head HD2a～HD2d is equipped on towards the position between the conveyer belt of conveyer belt V2a～V2d between driving shaft DS and the 2nd driven shaft FS2.Record head HD2a is by adjacent with record head HD2b and set alignedly across conveyer belt V2a.

Below, the 1st and the 2nd discharge performance is recovered cap CA1, CA2 be elaborated.

Figure 26 is the figure that schematically shows the D-D section of Figure 25, and Figure 26 (a) expression the 1st discharge performance recovers the state that cap CA1 is in retreating position, Figure 26 (b) expression the 1st discharge performance recover that cap CA1 rises and with record head HD1a～HD1d state of contact.And, among this Figure 26, constitute in order to understand easily, the 2nd transport unit CV2 is omitted.

The 1st discharge performance recovers cap CA1 shown in Figure 26 (a), possess respectively with record head HD1a～HD1d of the 1st record head group HD1 across the transfer path PC of record head paper and the opposed cap CA1a～CA1d of cutting apart.Though the 2nd discharge performance recovers cap CA2 is and the 1st discharge performance recovers the identical formation of cap CA1, accompanying drawing is omitted, possess with record head HD2a～HD2d separately across transfer path PC and the opposed cap CA2a～CA2d of cutting apart.

That is, cut apart and cut apart cap CA1a～CA1c on position between the conveyer belt of the conveyer belt V1a～V1d between the 1st driven shaft FS1 and the driving shaft DS in the middle of cap CA1a～CA1d, set opposed to each other mutually with record head HD1a～HD1c across transfer path PC.Cut apart cap CA1d and be adjacent to align with cutting apart cap CA1c, be equipped on across transfer path PC and the opposed position of record head HD1d across conveyer belt V1d.

In addition, cut apart and cut apart cap CA2b～CA2d on position between the conveyer belt of the conveyer belt V2a～V2d between driving shaft DS and the 2nd driven shaft FS2 in the middle of cap CA2a～CA2d, set opposed to each other mutually with record head HD2b～HD2d across transfer path PC.Cut apart cap CA2a and be adjacent to align with cutting apart cap CA2b, be equipped on across transfer path PC and the opposed position of record head HD2a across conveyer belt V2a.

Here, the width of cutting apart cap CA1a～CA1d is set to widelyer than the width of record head HD1a～HD1d shown in Figure 26 (b), when utilizing cap lifting unit described later to make it to rise, the nozzle of record head HD1a～HD1d all can be covered.

In addition, cut apart cap CA1a～CA1d, CA2a～CA2d and support, be utilized pipeline TB and be connected with suction pump PU by cap support portion SJ.

In addition, cut apart cap CA1a～CA1d, CA2a～CA2d as figure shown in Figure 27 that schematically shows the E-E section among Figure 26 (a), possess: the formation by making end and record head HD1a the nozzle face NZP of nozzle NZY, NZM, NZC, NZK contact and the CP of cap portion that the top at least of nozzle NZY, NZM, NZC, NZK covering is made of elastomer, is fixed on the SJ of cap support portion and the carriage SF of the CP of support cap portion, is located at the black liquid absorber CT that aspirates black liquid in the CP of cap portion.In addition, a side end is connected the opposing party's end through reaching cap support portion SJ in the carriage SF by the pipeline TB that is connected with suction pump PU with the CP of cap portion.

The CP of cap portion is utilized cap lifting unit described later and rises, and the end of the CP of cap portion contacts with nozzle face NZP, and nozzle NZY, NZM, NZC, NZK are covered.In addition, reduce pressure by suction pump PU through pipeline TB in the CP of cap portion.So, become nozzle obstruction essential factor curing the sucking-off and eliminate obstruction in the CP of cap portion of quilt such as black liquid, the foreign matter of intrusion.

Below, be elaborated for the cap lifting unit that makes the 1st and the 2nd discharge performance recover cap CA1, CA2 rising, decline.

Cap lifting unit UD shown in Figure 28 as the front view of ink-jet recording apparatus 1000, possess that the periphery of making contacts with the bottom surface of cap support portion SJ and with rotating shaft RS be the 1st and the 2nd lifter cam CM1, CM2, the generation of center rotation by not shown Poewr transmission mechanism to the 1st and the 2nd lifter cam CM1, the CM2 not shown lifting guidance part of the lifting of the 1st and the 2nd cam drive motor M3, M4, the guiding cap support portion SJ of transferring power respectively.And this Figure 28 has represented that the 1st and the 2nd discharge performance recovers cap CA1, CA2 are in retreating position with the nozzle face isolation of the 1st and the 2nd record head group HD1, HD2 state.

The the 1st and the 2nd lifter cam CM1, CM2 are utilized the 1st and the 2nd cam drive motor M3, M4 and drive independently respectively.In addition, as the 1st and the 2nd cam drive motor M3, M4, can adopt and to realize the open stepper motor of controlling etc.

And, shown in Figure 30 as block diagram of these the 1st and the 2nd cam drive motor M3, M4, MD controls driving by the motor control part.

In addition, when the 1st and the 2nd cam drive motor M3, M4 start, as shown in figure 29, the the 1st and the 2nd lifter cam CM1, CM2 are rotated, cap support portion SJ rises along the periphery of the 1st and the 2nd lifter cam CM1, CM2, forms the 1st and the 2nd discharge performance and recovers cap CA1, CA2 and nozzle face state of contact.

Ink-jet recording apparatus 1000 with described formation when receiving the instruction of recorded information and record from external equipment, i.e. the action of opening entry, identical with described embodiment 1, the 1st transport unit CV1 leads record-paper P under the 1st record head group HD1.

At this moment, CPU in the moment of instrumentation recording start, makes record head control part HDD control the 1st record head group HD1 based on the 1st paper detection signal by the 1st paper test section PK1 output, from nozzle NZY, NZM of all kinds, NZC, NZK, spray ink droplet, implement the 1st record based on recorded information.

After this, the record-paper P that has carried out the 1st record is led by the 2nd transport unit CV2 under the 2nd record head group HD2, and is identical with the 1st record, based on the moment from the 2nd paper detection signal of the 2nd paper test section PK1, utilizes the 2nd record head group HD2 to implement the 2nd record.

In the ink-jet recording apparatus 1000 of embodiment 3, describe for following situation, that is, when writing down continuously on different record-paper P, discharge performance recovers to handle between the paper of the performance of the ejection ink droplet of recovery the 1st and the 2nd record head HD1, HD2 between these different record-paper P.And, between the paper of embodiment 3 discharge performance recover to handle be to the 1st and the 2nd discharge performance recover cap CA1, CA2 controls respectively individually and the processing carried out, the flow process of control separately is identical.So only the processing of cap CA1 of flow process recover to(for) the 1st discharge performance is elaborated.

The ink-jet recording apparatus 1000 of embodiment 3 is when the 1st record head group HD1 opening entry, and CPU promptly begins discharge performance recovery processing between paper shown in Figure 31.

At first, in step S301, read in the paper detection signal of the 1st paper test section PK1 and transfer to step S302.

Then, in step S302, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the rear end of record-paper P, when being judged to be when detecting the rear end, then transfer to step S303, when being judged to be when not detecting, then transfer to step S301, read in the paper detection signal.

Then, in step S303, the timer of the time that the starting instrumentation begins behind the rear end that detects record-paper P is transferred to step S304.

Then, in step S304, the instrumentation time T of judging timer whether with preset time Ts consistent, when being judged to be unanimity, then transfer to step S305, when being judged to be when inconsistent, then carry out step S304 repeatedly, until unanimity.

Then, in step S305, drive the 1st cam drive motor M3 and the CP of cap portion that makes the 1st discharge performance recover cap CA1 contacts with the nozzle face NZP of the 1st record head group HD1, transfer to step S306.

Then, in step S306, drive suction pump PU, the black liquid of suction recovers black liquid discharge performance from nozzle NZY, NZM of all kinds, NZC, NZK, transfers to step S307.

Then, in step S307, drive the 1st cam drive motor M3, make the 1st discharge performance recover cap CA1 and keep out of the way retreating position, transfer to step S308.

Then, in step S308, timer is reset and end process.

And, in the present embodiment, record-paper P is corresponding with recording medium, and the 1st and the 2nd record head group HD1 and HD2 are corresponding with the 1st and the 2nd shower nozzle, and the processing of step S305～S307 of the 1st and the 2nd discharge performance recovery cap CA1 and CA2 and Figure 31 is corresponding with discharge performance recovery mechanism.

According to described explanation, discharge performance can be recovered to realize the miniaturization of ink-jet recording apparatus under the transmission plane that mechanism closes at record-paper P, and carry out under the situation of the record of record-paper P, can not hindering the transmission of record-paper P.In addition,, therefore under situation about not writing down, slightly rise, just can promptly recover the discharge performance of shower nozzle by making it because discharge performance recovery mechanism is mutually opposed with the 1st and the 2nd shower nozzle.

In addition, when writing down, when carrying out discharge performance recovery processing, do not need mobile shower nozzle.So, can eliminate reliability problems for mobile shower nozzle essential mechanism components or complicated control with regard to not needing.In addition, can eliminate, keep good recording quality by moving the situation that the generation shower nozzle that causes departs from record position.

In addition, when on different record-paper P, writing down continuously, can utilize the interval before the record end of 1 record-paper P is transmitted to next record-paper P, interruption logging ground recovers discharge performance, thereby whole recording quality of continuous record all can be kept well.

And, in the embodiment 3,, be not limited thereto though be that example is illustrated with record-paper P as recording medium, also go for the recording medium beyond the paper.For example,, go for resin or metal etc.,, go for the shape of circle or abnormity etc., in addition, go for the medium that high material of flexibility or low material etc. have various character as shape as material.

In addition, in the present embodiment,, be not limited thereto, also can minimumly respectively constitute with 1 though the 1st and the 2nd conveyer belt V1, V2 are constituted with 4 conveyer belt V1a～V1d, V2a～V2d respectively.From the recording surface PP of record-paper P as far as possible flatly stably can being transmitted, the viewpoint that obtains good record result considers that preferably each constitutes with many.

In addition, constituting the bar number of conveyer belt of the 1st conveyer belt V1 and the bar number that constitutes the conveyer belt of the 2nd conveyer belt V2 can not be similar number also, for example, also can be that a side is 1 and the opposing party is 2 a formation.Consider from the change of the transfer rate that suppresses record-paper P, the viewpoint that obtains good recording quality, the bar number that preferably will constitute the conveyer belt of the 1st and the 2nd conveyer belt V1, V2 respectively is made as similar number, be made as equal extent by the size that will be applied to the power on the 1st, the 2nd driven shaft FS1, the FS2, offset the reaction force that on driving shaft DS, produces, and in whole conveyer belts, per 1 tension force is equated.

In addition, the 1st and the 2nd conveyer belt V1, V2 are directly drawn formation on driving shaft DS and the 1st, the 2nd driven shaft FS1, the FS2, be not limited thereto though adopted.That is, also can followingly constitute, that is, the 1st and the 2nd conveyer belt V1, V2 are made as synchronous band, on driving shaft DS and the 1st, the 2nd driven shaft FS1, FS2, synchronous band pulley is set, be with pulley to the 1st and the 2nd conveyer belt V1, V2 transferring power synchronously by this.

In addition, during discharge performance recover to be handled between the paper of embodiment 3,, also can recover during to many record in each end though during to 1 record-paper P end record, recover discharge performance at the each the 1st and the 2nd record head group HD1, HD2.

In addition; recover mechanism as the discharge performance of the black liquid discharge performance of recovery record HD1a～HD1d and HD2a～HD2d and constitute though the 1st and the 2nd discharge performance is recovered cap CA1 and CA2, the shower nozzle protection mechanism that also can be used as the nozzle face NZP that protects record head HD1a～HD1d and HD2a～HD2d constitutes.

At this moment, cut apart cap CA1a～CA1d and cut apart cap CA2a～CA2d shown in figure 32, be utilized pipeline TB and be connected with the wetting agent jar TA that has filled the wetting agent that prevents drying.In addition, in the CP of cap portion, replace black liquid absorber CT, be equipped with the wetting agent absorber CT that absorbs wetting agent.

When the end of the CP of cap portion contacts with nozzle face NZP,, therefore can keep moist environment because the wetting agent absorber CT in the CP of cap portion absorbs wetting agent through pipeline TB from wetting agent jar TA.So the solvent that can postpone black liquid evaporates from nozzle NZY, NZM, NZC, NZK, the viscosity of black liquid rises in the nozzle, solidifies the situation of falling under the poorest situation.In addition, the viscosity that not only can postpone black liquid rises, and for example can also prevent that the paper fiber that constitutes record-paper P breaks away from and the adhering to or the intrusion in nozzle on nozzle face NZP such as paper powder of generation.

In the ink-jet recording apparatus 1000 that possesses as the 1st and the 2nd shower nozzle protective cap CA1 of shower nozzle protection mechanism and CA2; describe for following processing; promptly; when different record-paper P was write down continuously, the shower nozzle protection was handled between the paper of the performance of the ejection ink droplet of keeping the 1st and the 2nd record head group HD1, HD2 between these different record-paper P.And to handle be that the 1st and the 2nd shower nozzle protective cap CA1, CA2 are controlled respectively and the processing carried out individually for shower nozzle protection between this paper, and the flow process of control separately is identical.So only the flow process for the processing of the 1st shower nozzle protective cap CA1 is elaborated.

The ink-jet recording apparatus 1000 that possesses the 1st, the 2nd shower nozzle protective cap CA1, CA2 is when the 1st record head group HD1 opening entry, and CPU promptly begins shower nozzle protection processing between paper shown in Figure 33.

During shower nozzle protection is handled between this paper, at first, in step S321, read in the paper detection signal of the 1st paper test section PK1 and transfer to step S322.

Then, in step S322, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the rear end of record-paper P, when being judged to be when detecting the rear end, then transfer to step S323, when being judged to be when not detecting, then transfer to step S321, read in the paper detection signal.

Then, in step S323, the timer of the time T that the starting instrumentation begins behind the rear end that detects record-paper P is transferred to step S324.

Then, in step S324, the instrumentation time T of judging timer whether with preset time Ts consistent, when being judged to be unanimity, then transfer to step S325, when being judged to be when inconsistent, then carry out step S324 repeatedly, until unanimity.

Then, in step S325, drive the 1st cam drive motor M3 and the CP of cap portion of the 1st shower nozzle protective cap CA1 is contacted with the nozzle face NZP of the 1st record head group HD1, transfer to step S326.

Then, in step S326, read in the paper detection signal of the 1st paper test section PK1, transfer to step S327.

Then, in step S327, based on paper detection signal from the 1st paper test section PK1, judge whether the 1st paper test section PK1 has detected the head end of new record-paper P, when being judged to be when detecting head end, then transfer to step S328, when being judged to be when not detecting, then transfer to step S326, read in the paper detection signal.

Then, in step S328, drive the 1st cam drive motor M3, make the 1st shower nozzle protective cap CA1 keep out of the way retreating position, transfer to step S329.

Then, in step S329, timer is reset and end process.

Among this Figure 33, the processing of step S325, S328 is corresponding with the shower nozzle protection mechanism.

According to described explanation, the shower nozzle protection mechanism can be closed under the transmission plane of record-paper P, realize the miniaturization of ink-jet recording apparatus, and carrying out under the situation of the record of record-paper P, can not hindering the transmission of record-paper P.In addition, because the shower nozzle protection mechanism is mutually opposed with the 1st and the 2nd shower nozzle, therefore under situation about not writing down,, just can promptly carry out the dismounting of shower nozzle protection mechanism on record head by it slightly being risen and descending.

In addition,, promptly use the very short time, also can protect record head by in the scope of the transmission that does not hinder recording medium, reducing the opposed interval of record head HD1a～HD1d and HD2a～HD2d and shower nozzle protection mechanism as far as possible.That is, during opening entry, the record-paper P that is provided arrives under record head HD1a～HD1d and the HD2a～HD2d, during ejection ink droplet from these record heads HD1a～HD1d and HD2a～HD2d, can protect shower nozzle transmitting recorded information by external equipment.So, just the foreign matters such as paper powder that swim can be attached to the possibility that nozzle face NZP goes up or the intrusion nozzle is interior and suppress to be utmost point low degree.

In addition, when writing down, when carrying out shower nozzle protection processing, do not need moving recording head HD1a～HD1d and HD2a～HD2d.So, can eliminate reliability problems for moving recording head HD1a～HD1d and essential mechanism components or the complicated control of HD2a～HD2d with regard to not needing.In addition, can eliminate the generation of the situation that departs from record position by the mobile record head HD1a～HD1d that causes and HD2a～HD2d, keep good recording quality.

In addition, when on different record-paper P, writing down continuously, can be before being transmitted to new record-paper P from record end to 1 record-paper P, protection record head HD1a～HD1d and HD2a～HD2d.So, can postpone the time ground that the record that carries out continuously finishes and improve the frequency of the protection of record head, thereby can until record end the time, suppress the reduction of the recording quality that the viscosity rising by black liquid causes.

In addition; during the shower nozzle protection is handled between paper shown in Figure 33; though be at the each the 1st and the 2nd record head group HD1, HD2 during to 1 record-paper P end record, protection record head HD1a～HD1d and HD2a～HD2d also can protect during to many record in each end.

Based on accompanying drawing embodiments of the present invention 4 are described.

The ink-jet recording apparatus 1100 of embodiment 4 as shown in figure 34, paper transport unit CV has omitted the 2nd transport unit CV2 of described embodiment 3, and conveyer belt width W3 and interband shown in Figure 35 are set to L＞W3 every L, in addition, has identical formation with the 1st transport unit CV1, the identical symbol of part use for corresponding with Figure 24 omits its explanation.

In addition, this ink-jet recording apparatus 1100 also possesses the solenoid control part SLD of control solenoid SL and solenoid SL as Figure 34 (a) and shown in Figure 36.

In addition, as the general line shower nozzle HD of record head with the posting field that equates with the paper width.This record head HD is shown in Figure 37 (b), each chromatic nozzle NZY, NZM of yellow, peony, dark green, black, NZC, NZK are arranged along directions X forms, and be arranged on the same straight line that is formed at the Y direction, constitute each nozzle rows NZYL, NZML, NZCL, NZKL of 1 of all kinds.

In addition, shown in the record head HD34 (a), at the central portion of driven shaft FS and driving shaft DS, nozzle rows NZYL of all kinds, NZML, NZCL, NZKL are spreaded all over the posting field of recording surface PP according to crosscut conveyer belt Va, Vb, Vc, Vd the mode of width Zone Full sets.Promptly, nozzle rows NZYL of all kinds, NZML, NZCL, NZKL shown in Figure 37 (b), the nozzle TVa～TVd of the opposed band of have nozzle NTV, facing with conveyer belt Va～Vd separately mutually towards the non-opposed band between the conveyer belt of conveyer belt Va～Vd, across conveyer belt Vd and towards the outside between conveyer belt towards outer nozzle STV.

This record head HD is utilized the power from solenoid SL that transmits through the TMC of shower nozzle travel mechanism shown in Figure 38, the nozzle TVa～TVd and the opposed record position of conveyer belt Va～Vd of opposed band hold concurrently the 1st discharge performance recover the position and thus to width move and the nozzle NTV that makes non-opposed band and opposed the 2nd discharge performance recovery of conveyer belt Va～Vd position between mobile.

The TMC of this shower nozzle travel mechanism has the formation that the linear guide LG that is fixed on the HDB of record head support portion supports the arm ARM of record head HD.This linear guide LG when through solenoid linking part SLC with the power of solenoid SL when record head HD transmits, promptly guide record head HD smoothly.This solenoid SL is driven by solenoid control part SLD control as shown in figure 36.

Here, the configuration formation to discharge performance recovery cap CA and record head HD describes.

Figure 39 is the figure that schematically shows the F-F section among Figure 34 (a), is the figure that declare record head HD and discharge performance recover the configuration formation of cap CA.

Discharge performance recovers cap CA shown in Figure 39 (a), possesses 4 and cuts apart cap CAa～CAd.Cut apart and cut apart cap CAa～CAc on position between the conveyer belt of conveyer belt Va～Vd in the middle of cap CAa～CAd, set opposed to each other mutually with the nozzle NTV of the non-opposed band of record head HD across the transfer path PC of record-paper P.In addition, cut apart cap CAd by being adjacent to align with cutting apart cap CAc across conveyer belt Vd, be equipped on across transfer path PC and record head HD on the opposed position of outer nozzle STV.

In addition, the width of cutting apart cap CAa～CAd is set to wideer than the width of the nozzle TVa～TVd of opposed band.

Have in the ink-jet recording apparatus 1100 of described formation, when the action of opening entry, record-paper P is promptly shown in Figure 34 (b), identical with embodiment 1, be directed under the record head HD,, recording surface PP carried out record by record head control part HDD control record head HD.

In addition, when record-paper P is write down, shown in Figure 39 (a), record head HD is in the nozzle TVa～TVd of opposed band and the opposed record position of conveyer belt Va～Vd the 1st discharge performance of holding concurrently and recovers on the position, cuts apart on the retreating position of position of downside that head end that cap CAa～CAd is in the CP of cap portion is positioned at transfer path PC.

Discharge performance recovers the formation of cap CA and cap lifting unit UD owing to identical with embodiment 1, therefore omission will be described, discharge performance is recovered action describe.

The discharge performance of embodiment 4 recovers action and is divided into roughly that the 1st discharge performance of the black liquid of suction recovers action, the 2nd discharge performance of the black liquid of suction recovers action from the nozzle TVa～TVd of opposed band from the nozzle NTV of non-opposed band and towards the outer nozzle STV.

Recover in the action at the 1st discharge performance, discharge performance recovers cap CA from the state shown in the Figure 39 (a) that is in retreating position, is utilized the cap lifting unit UD shown in Figure 34 (b) and rises, and shown in Figure 39 (b), HD contacts with record head.In addition, the CP of cap portion of cutting apart cap CAa～CAc and CAd covers with the nozzle NTV of non-opposed band and towards outer nozzle STV, and is identical with embodiment 1, utilizes suction pump PU to aspirate black liquid.After having aspirated black liquid, discharge performance recovers cap CA and gets back to the retreating position shown in Figure 39 (a).Finish the 1st discharge performance thus and recover action.

Below, the 2nd discharge performance is recovered action describe.

Figure 40 is that the discharge performance of the nozzle TVa～TVd of the opposed band of explanation recovers the figure of action, and Figure 40 (a) expression discharge performance recovers the state that cap CA is in retreating position, and Figure 40 (b) expression discharge performance recovers the state after cap CA rises.

Recover action when finishing the 1st discharge performance, discharge performance recovers cap CA when getting back to retreating position shown in Figure 39 (a), record head HD is shown in Figure 40 (a), by the TMC of shower nozzle travel mechanism, utilize solenoid SL that the nozzle TVa～TVd of opposed band is moved to and cut apart the opposed position of cap CAa～CAd.

After this, when discharge performance recovery cap CA is risen, shown in Figure 40 (b), the CP of cap portion of cutting apart cap CAa～CAd covers with the nozzle NTV of the nozzle TVa～TVd of opposed band and non-opposed band and towards the part of outer nozzle STV, utilizes suction pump PU to aspirate black liquid.That is, repeatedly aspirate black liquid from the nozzle NTV of non-opposed band and towards the nozzle of the boundary portion of outer nozzle STV and nozzle TVa～TVd opposed band.

After this, when the suction from the nozzle NTV of the nozzle TVa～TVd of opposed band and non-opposed band and the black liquid towards the part of outer nozzle STV finishes, shown in Figure 39 (a), discharge performance is recovered cap CA move to retreating position, HD moves to record position with record head.The 2nd discharge performance recovers release thus.Because the 2nd discharge performance recovers the end of action, the suction of the black liquid from whole nozzle of record head HD finishes, and discharge performance recovers action to be finished.

In the ink-jet recording apparatus 1100 of embodiment 4, describe for following processing, that is, when different record-paper P was write down continuously, discharge performance recovered to handle between the paper of the performance of the ejection ink droplet of a recovery record HD between these different record-paper P.

Ink-jet recording apparatus 1100 is when record head HD opening entry, and CPU promptly begins discharge performance recovery processing between paper shown in Figure 41.

At first, in step S401, read in the paper detection signal of paper test section PK1 and transfer to step S402.

Then, in step S402, based on paper detection signal from paper test section PK1, judge whether paper test section PK1 has detected the rear end of record-paper P, when being judged to be when detecting the rear end, then transfer to step S403, when being judged to be when not detecting, then transfer to step S401, read in the paper detection signal.

Then, in step S403, the timer of the time that the starting instrumentation begins behind the rear end that detects record-paper P is transferred to step S404.

Then, in step S404, the instrumentation time T of judging timer whether with preset time Ts consistent, when being judged to be unanimity, then transfer to step S405, when being judged to be when inconsistent, then carry out step S404 repeatedly, until unanimity.

Then, in step S405, driving cam CD-ROM drive motor M3 and the CP of cap portion that makes discharge performance recover cap CA contacts with the nozzle face NZP of record head HD transfers to step S406.

Then, in step S406, drive suction pump PU, from the nozzle NTV of non-opposed band and towards the outer nozzle STV the black liquid of suction, recover black liquid discharge performance, transfer to step S407.

Then, in step S407, driving cam CD-ROM drive motor M3 makes discharge performance recover cap CA and keeps out of the way retreating position, transfers to step S408.

Then, in step S408, record head HD is moved to the 2nd discharge performance recover the position, transfer to step S409.

Then, in step S409, driving cam CD-ROM drive motor M3 and the CP of cap portion that makes discharge performance recover cap CA contacts with the nozzle face NZP of record head HD transfers to step S410.

Then, in step S410, drive suction pump PU, from the nozzle NTV of the nozzle TVa～TVd of opposed band and non-opposed band and towards the part of outer nozzle STV the black liquid of suction, recover black liquid discharge performance, transfer to step S411.

Then, in step S411, driving cam CD-ROM drive motor M3 makes discharge performance recover cap CA and keeps out of the way retreating position, transfers to step S412.

Then, in step S412, HD moves to record position with record head, transfers to step S413.

Then, in step S413, timer is reset and end process.

And in this embodiment 4, the processing of the step S405 of Figure 41～S407 and step S409～S411 is corresponding with discharge performance recovery mechanism, and the processing of step S408, S412 is corresponding with shower nozzle travel mechanism.

In addition, it is corresponding with discharge performance recovery mechanism that discharge performance recovers cap CA, and solenoid SL and the TMC of shower nozzle travel mechanism are corresponding with shower nozzle travel mechanism, and the nozzle NTV of non-opposed band is corresponding with opposed nozzle, and the nozzle TVa～TVd of opposed band is corresponding with non-opposed nozzle.

According to described explanation, compare with embodiment 3, the formation of paper transport unit CV and discharge performance recovery cap CA can be oversimplified, can recover black liquid discharge performance with recovering cap, discharge performance can also be recovered in addition under the transmission plane that mechanism closes at record-paper P than the number of record head discharge performance still less.So, can realize carrying out the further miniaturization of the ink-jet recording apparatus that the discharge performance of shower nozzle recovers.

And the record head HD of embodiment 4 both can the required size of integrated formation, also can will be divided into a plurality of independent shower nozzles according to the mode that reaches required size and put formation.When constituting, for example under the situation that the nozzle of the part of record head HD has damaged, can suppress required expense in changing lower by only changing shower nozzle with the nozzle that has damaged with a plurality of shower nozzles of having cut apart.

In addition, the TMC of shower nozzle travel mechanism of moving recording head HD also can followingly constitute, that is, be not at solenoid SL, but link ball-screw on the rotating shaft of motor, by being fixed in ball nut on the record head HD to record head HD transferring power.

In addition, during discharge performance recover to be handled between the paper of embodiment 4,, also can recover during to many record in each end though during to 1 record-paper P end record, recover discharge performance at each record head HD.

In addition, in the embodiment 4, though the moving recording head HD of shower nozzle travel mechanism and change record head HD recover the relative position of cap CA with respect to discharge performance, but be not limited thereto, also can utilize TCA of cap travel mechanism shown in Figure 42 (a) and cylinder C L that discharge performance is recovered cap CA broad ways and move.

The linear guide LG of the base portion that is fixed in basket of the TCA of this cap travel mechanism is supporting transmission support portion CVB.In addition, transmit support portion CVB and support paper transport unit CV and discharge performance recovery cap CA and cap lifting unit UD, connecting the driving shaft of cylinder C L.Cylinder C L makes reciprocating motion of the pistons produce power by give pressure to fluid.

In addition, discharge performance recovers cap CA shown in Figure 42 (b), by via the power of the TCA of cap travel mechanism from cylinder C L, recovers to move between position and the 2nd discharge performance recovery position at the 1st discharge performance with paper transport unit CV and cap lifting unit UD.And among this Figure 42, cylinder C L and the TCA of cap travel mechanism are corresponding with discharge performance recovery mechanism.

And, in this formation shown in Figure 42,, be not limited thereto though utilize the power of cylinder C L to come the TCA of removable cap travel mechanism, also can will rotatablely move and be converted to the mechanism of translatory movement, and utilize the power of motor to make it mobile by ball-screw and nut etc.

Based on accompanying drawing embodiments of the present invention 5 are described.

The ink-jet recording apparatus 1200 of embodiment 5 as shown in Figure 43 as vertical view, has following formation, promptly, between the record head HD1a～HD1d that constitutes the 1st record head group HD1, be equipped with the 1st thorn wheels SP1, between the record head HD2a～HD2d that constitutes the 2nd record head group HD2, be equipped with the 2nd thorn wheels SP2.

In addition, paper transport unit CV has following formation as shown in figure 45, that is, the 1st and the 2nd driven shaft FS1 shown in Figure 2 and the transmission interval between FS2 are made of driven shaft FS and driving shaft DS, are provided with 1 conveyer belt V at these a driven shafts FS and a driving shaft DS structure of an essay.

That is, ink-jet recording apparatus 1200 is except in the ink-jet recording apparatus 1000 of embodiment 3, the 1st and the 2nd discharge performance recovered cap CA1 and CA2 omits, and beyond the formation difference of paper transport unit CV, has the formation identical with ink-jet recording apparatus 1000.

So, for the part corresponding, use identical symbol with ink-jet recording apparatus 1000, omission will be described.

The the 1st and the 2nd thorn wheels SP1, SP2 are made of thorn wheel SP1a～SP1d and SP2a～SP2d respectively as shown in figure 43.In addition, thorn wheel SP1a～SP1d and SP2a～SP2d be respectively as figure shown in Figure 46 that schematically shows the G-G section among Figure 43, by according to make outer peripheral face pass record-paper P transfer path PC and with conveyer belt V on the mode that contacts set.And, among this Figure 46, constitute in order to understand easily, begin diagram has been omitted in the downstream from driving shaft DS.These thorn wheels SP1a～SP1d and SP2a～SP2d respectively as shown in figure 44, on the outer peripheral face that can be the roller that rotates of center, become to be provided with radially jut, the top of this jut and conveyer belt V clamping record-paper P and limit floating of record-paper P with thorn wheel rotating shaft JK.

Thorn wheel SP1a～SP1d in the middle of the 1st thorn wheels SP1 as shown in figure 43, be equipped on the substantial middle portion of the Y direction between record head HD1a～HD1d of the 1st record head group HD1 respectively, and set according to the mode of substantial middle portion of length that makes pivot be positioned at the directions X of record head HD1a～HD1d.Thorn wheel SP1a is set alignedly across record head HD1a and thorn wheel SP1b.In addition, the thorn wheel SP2a～SP2d in the middle of the 2nd thorn wheels SP2 is identical with the 1st thorn wheels SP1, is equipped between record head HD2a～HD2d, and thorn wheel SP2d is set alignedly across record head HD2d and thorn wheel SP2c.

Here, the 1st and the 2nd record head group HD1, HD2 and the 1st, the 2nd thorn wheels SP1, SP2 are supported by the gripper shoe SB that is fixed on the not shown basket as shown in Figure 47 (a) of the J-J profile among Figure 43.

Record head HD1a～HD1d, HD2a～HD2d are run through gripper shoe SB ground and are fixed on the gripper shoe SB, make as the nozzle face NZP of the face that is formed with nozzle mutually opposed with transfer path PC.

Thorn wheel SP1a～SP1d and SP2a～SP2d are respectively as shown in Figure 47 (b) of the figure of the Q portion details in expression Figure 47 (a), run through gripper shoe SB and outer peripheral face contacts with transfer path PC, the thorn wheel rotating shaft JK that is inserted in the gripper shoe SB can support rotatably.

Ink-jet recording apparatus 1200 with described formation when receiving the instruction of recorded information and record from external equipment, i.e. the action of opening entry.

When the action of record was begun, record-paper P one by one supplied with to door roller GR from the not shown carton that maintains many record-paper P just by sheet feed section KS shown in Figure 48.

Utilized door roller GR to correct the inclination on the directions X, the position skew of Y direction by the record-paper P that supplies with to door roller GR, CV sends to the paper transport unit.

Record-paper P by from door roller GR during paper transport unit CV sends, it is charged to be utilized static assigning unit EC.

Because of charged record-paper P with the absorption affinity on conveyer belt V is adsorbed in because of utilizing transport unit CD-ROM drive motor M0 rotating driveshaft DS, and conveyer belt V is seen in Fig. 2 on the outer peripheral face of the conveyer belt V that rotates in the counterclockwise direction, and be utilized to transmit from the power of transport unit CD-ROM drive motor M0, under the 1st record head group HD1 that leads.

Before record-paper P arrived under the 1st record head group HD1, the 1st paper test section PK1 shown in Figure 48 detected record-paper P, and the 1st paper detection signal that expression has been detected record-paper P sends to CPU.

CPU calculates the moment of opening entry based on the 1st paper detection signal from the 1st paper test section PK1, sends the 1st recording instruction to record head control part HDD shown in Figure 48.

Record head control part HDD is based on the 1st recording instruction, control the 1st record head group HD1, utilizing conveyer belt V on the recording surface PP of the record-paper P that moves continuously under the nozzle face NZP, from nozzle NZY, NZM of all kinds, NZC, NZK, optionally spray ink droplet and carry out the 1st record based on recorded information.

The record-paper P that has carried out the 1st record is transmitted band V to be continued to transmit, under the 2nd record head group HD2 that leads.

Before record-paper P arrived under the 2nd record head group HD2, the 2nd paper test section PK2 shown in Figure 48 detected record-paper P, and the 2nd paper detection signal that expression has been detected record-paper P sends to CPU.

CPU calculates the moment of opening entry based on the 2nd paper detection signal from the 2nd paper test section PK2, sends the 2nd recording instruction to record head control part HDD shown in Figure 48.

Record head control part HDD is based on the 2nd recording instruction, control the 2nd record head group HD2, utilizing conveyer belt V on the recording surface PP of the record-paper P that moves continuously under the nozzle face NZP, from nozzle NZY, NZM of all kinds, NZC, NZK, optionally spray ink droplet and carry out the 2nd record based on recorded information.

When the 2nd record end, the record of 1 record-paper P is promptly finished, this record-paper P is utilized row's paper EJ of portion and discharges outside ink-jet recording apparatus 1.

Here, when to the record end of whole recorded informations, operation of recording promptly finishes, and when residual when Unrecorded recorded information is arranged, then new record-paper P supplied with and continues operation of recording to door roller GR, until the record end to whole recorded informations.

In this ink-jet recording apparatus 1200, the 1st and the 2nd record head group HD1, HD2 are corresponding with the 1st and the 2nd jet head sets, and record-paper P is corresponding with recording medium, and thorn wheel SP1a～SP1d, SP2a～SP2d are corresponding with the roller that floats limiting mechanism as recording medium.

According to described explanation, even owing to stretching because of writing down to produce on the recording surface PP that has infiltrated black liquid IK, on record-paper P, produce warpage, also can utilize thorn wheel SP1a～SP1d and SP2a～SP2d to correct the warpage of the record-paper P under record head HD1a～HD1d, the HD2a～HD2d, therefore the interval of recording surface PP and record head HD1a～HD1d, HD2a～HD2d is kept rightly, can obtain good recording quality.

And, in the embodiment 5,, be not limited thereto though be that example is illustrated with record-paper P as recording medium, also go for the recording medium beyond the paper.For example, can also be applicable to thin slice of constituting, have different shapes such as circular abnormity, size by materials such as resins etc.

In addition, conveyer belt V is directly drawn formation on driving shaft DS and the driven shaft FS, be not limited thereto though adopted.That is, also can followingly constitute, that is, conveyer belt V is made as synchronous band, synchronous band pulley is set on driving shaft DS and driven shaft FS, be with pulley to conveyer belt V transferring power synchronously by this.

In addition, in the embodiment 5,, also can adopt the formation that sets plural thorn wheel though adopted the formation that between record head, has set 1 thorn wheel.Under this situation, limit floating of recording medium with wideer scope owing to spread all over the length ground of the directions X of record head, therefore even more ideal.

In addition, though between thorn wheel SP1a～SP1d and SP2a～SP2d and conveyer belt V, do not exist under the situation of record-paper P, is the mode that the top of the jut of thorn wheel SP1a～SP1d, SP2a～SP2d touches conveyer belt V with thorn wheel SP1a～SP1d and SP2a～SP2d apart from the height setting of conveyer belt V, but be not limited thereto, also can set according to mode with given gap.Under this situation, given gap is set at record-paper P when conveyer belt V has floated specified rate,, has surpassed under the situation of the boundary that recording quality is without prejudice top and recording surface PP contact distance that is.So, when record-paper P from conveyer belt V float less than specified rate the time, because thorn wheel SP1a～SP1d and SP2a～SP2d contacts with recording surface PP, so just can suppress the infringement of the recording quality that the contact by thorn wheel SP1a～SP1d and SP2a～SP2d causes.

In addition, though position with respect to the directions X of record head HD1a～HD1d, HD2a～HD2d with thorn wheel SP1a～SP1d and SP2a～SP2d, the mode of substantial middle portion of length that is positioned at the directions X of record head HD1a～HD1d, HD2a～HD2d according to the point of contact portion that makes each thorn wheel SP1a～SP1d and SP2a～SP2d and record-paper P is set, but be not limited thereto, also can be as shown in figure 49, the mode that point of contact portion is positioned on the line NUL between the most inboard nozzle NU that links between the record head is set.Under this situation, can more effectively limit floating of record-paper P under each nozzle NZY, NZM, NZC, the NZK, say it is desirable from this point.

And, in the embodiment 5, between driven shaft FS and driving shaft DS, draw around the formation of 1 conveyer belt V though paper transport unit CV is made as, be not limited thereto, also can use the paper transport unit CV shown in Figure 2 of embodiment 1.

That is, the ink-jet recording apparatus 1210 of paper transport unit CV shown in Figure 2 that has possessed embodiment 1 is as Figure 50 of vertical view and as shown in Figure 51 of front view, and the 1st and the 2nd conveyer belt V1, V2 are driven by public transport unit CD-ROM drive motor M0 and driving shaft DS.

And, in this Figure 50 and Figure 51, constitute in order to understand easily, the diagram that supports the gripper shoe SB of record head HD1a～HD1d, HD2a～HD2d and thorn wheel SP1a～SP1d and SP2a～SP2d is omitted.

According to this ink-jet recording apparatus 1210, owing to not only have the effect identical with ink-jet recording apparatus 1200, and the 1st and the 2nd conveyer belt V1, V2 are driven by public transport unit CD-ROM drive motor M0 and driving shaft DS, therefore record-paper P can be transmitted with same speed under the 1st and the 2nd record head group HD1, HD2, thereby suppress the difference of the recording quality that causes by the 1st and the 2nd record head group HD1, HD2.

In addition, with will compare with the interval situation of the equal transmission of the paper transport unit CV of this ink-jet recording apparatus 1210 with 1 conveyer belt formation, conveyer belt V1a～the V1d that constitutes the 1st and the 2nd transport unit CV1, CV2, the girth of V2a～V2d can be shortened, thereby amplitude can be reduced by the vibration of the flexible conveyer belt that causes.So, can further suppress the change at interval of the recording surface of record head and recording medium.

In addition, by paper transport unit CV is constituted with length short the 1st and the 2nd transport unit CV1, CV2, just can prevent to transmit relaxing of band in the way, and recording medium is correctly transmitted along tabular surface.

And, in the ink-jet recording apparatus 1210,, be not limited thereto though the 1st and the 2nd conveyer belt V1, V2 are constituted with 4 conveyer belt V1a～V1d, V2a～V2d respectively, also can minimumly respectively constitute with 1.From the recording surface PP of record-paper P as far as possible flatly stably can being transmitted, the viewpoint that obtains good record result considers that preferably each constitutes with many.

In addition, in ink-jet recording apparatus 1210,, be not limited thereto though the bar number of the conveyer belt of the 1st conveyer belt V1 and the 2nd conveyer belt V2 is made as similar number.That is, for example also can be with a side conveyer belt with 1 formation, with the opposing party's conveyer belt with 2 formations.Change from the transfer rate that suppresses record-paper P, the viewpoint that obtains good recording quality is considered, be made as similar number by the bar number that will constitute the 1st and the 2nd conveyer belt V1, V2 conveyer belt separately, make the size of the power that is applied on the 1st, the 2nd driven shaft FS 1, the FS2 equal, just can offset the reaction force that results from the driving shaft DS, and in whole conveyer belts, per 1 tension force is all equated.

In addition, in embodiment 5, though the 1st and the 2nd record head group HD1, HD2 be made as set independent record head HD1a～HD1d, the formation of HD2a～HD2d respectively, but be not limited thereto, if can guarantee to set the space of each thorn wheel SP1a～SP1d and SP2a～SP2d, also can constitute integratedly.

Claims (5)

1. ink-jet recording apparatus, it possesses:

The recording medium connecting gear, it is uploaded the put medium at conveyer belt and transmits,

Record head, it sets mutually opposed to each other with the recording surface of described recording medium, with the direction of the direction of transfer quadrature of described recording medium on be arranged with the nozzle of a plurality of ejection ink droplets and form posting field, the recording surface of described recording medium is the face with the opposite side of transmission plane of the described recording medium that is transmitted by described recording medium connecting gear, it is characterized in that

Described recording medium connecting gear has a transport unit at least, and this transport unit is established many conveyer belts being parallel to each other to draw between the driving shaft that sets and the driven shaft, keeps given interval to each other at this conveyer belt,

Described record head has the formation that is arranged with described a plurality of nozzles at least at the Zone Full with direction described direction of transfer quadrature described recording surface of described recording medium,

And described record head position and between the conveyer belt of opposed described transport unit across the transfer path of described recording medium, be equipped with from and this conveyer belt between the black liquid of suction and the discharge performance that recovers black liquid discharge performance recovers mechanism the opposed opposed nozzle, and possess that the relative position that makes described record head and described discharge performance recover mechanism relatively moves so that not and described discharge performance recover opposed non-opposed nozzle of mechanism and the opposed relative moving mechanism of this discharge performance recovery mechanism.

2. ink-jet recording apparatus according to claim 1 is characterized in that, described relative moving mechanism is the shower nozzle travel mechanism that described record head is moved.

3. ink-jet recording apparatus according to claim 1 is characterized in that, described relative moving mechanism is to make described discharge performance recover the discharge performance recovery travel mechanism that mechanism moves.

4. according to any described ink-jet recording apparatus in the claim 1 to 3, it is characterized in that, distance between described conveyer belt is set to longer than the width of described conveyer belt, and the width that described discharge performance recovers mechanism described opposed nozzle is constituted with the nozzle of boundary portion described non-opposed nozzle and the mode of described non-opposed nozzle according to covering when described non-opposed nozzle is mutually opposed with described discharge performance recovery mechanism.

5. according to any described ink-jet recording apparatus in the claim 1 to 3, it is characterized in that, described discharge performance recovers mechanism and is constituted as, can make head end to retreating position that the downside of the transfer path of described recording medium is kept out of the way and when discharge performance recovers, rise from described retreating position and the discharge performance recovery position that contact with described record head between mobile.

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