CN1190327C

CN1190327C - Ribbon cassette

Info

Publication number: CN1190327C
Application number: CNB021078173A
Authority: CN
Inventors: 伊恩·威廉·沃克·霍格斯; 尤安·尼尔·史密斯
Original assignee: PELLICON SCOTCHLAND Ltd
Current assignee: PELLICON SCOTCHLAND Ltd
Priority date: 2001-03-21
Filing date: 2002-03-21
Publication date: 2005-02-23
Anticipated expiration: 2022-03-21
Also published as: DE10113783C2; EP1243432A1; DE10113783A1; CN1376586A

Abstract

The present invention relates to a colored band cassette, especially to be used for a stylus printer, having a colored band 2, in endless band fashion, wherein the band is constructed to be a Moebius Strip or is at least twice the width of a normal band, wherein at least two band sections 34, 35 of the same size are provided and only one band section can be used during printing. The cassette also has an ink application unit applying the ink to the band sections used during printing of the colored band 2.

Description

Ribbon cartridge

Technical field

The present invention relates to a kind of ribbon cartridge, especially be used in the impact printer, have a circulation colour band.

Background technology

For many years, ribbon cartridge is widely used in the impact printer or similar printer that has the mechanical type hit agency.Employed colour band can be made of the nylon tape of the plastic material of braiding, for example braiding, has applied one deck printing ink thereon.The colour band of braiding is irregular relatively surface owing to braiding structure has, and its feature is that outstanding line and the intermediate gaps between litzendraht wire are arranged.In addition, that the colour band of braiding can have is folding, rub district and spread, and the manufacturing that they for example can be by colour band and colour band packed into produces in the ribbon cartridge.This scrambling of the band of braiding can cause the uneven distribution of printing ink on the colour band surface.Can produce visible intensity difference because uneven colour band is distributed in when printing, it makes the print pattern variation.This harmful effect is also referred to as " hot spot (hot-spotting) ".

Summary of the invention

Task of the present invention is, proposes a kind of ribbon cartridge, wherein avoided because the uneven distribution of printing ink and the intensity difference that causes in print pattern on the colour band.

According to the present invention, a kind of ribbon cartridge has been proposed, in impact printer, has a colour band, it is the shape of tape loop, wherein said band or be configured to Mobius strip or have the double width of a normal tape at least, the band section that wherein has at least two identical sizes, and in printing at that time always in these band sections only one be subjected to printing requirement, and, this ribbon cartridge has an ink coats device, and it is subjected to printing on the band section of requirement, wherein with what printing ink was coated to colour band again at that time, described ink coats device has an ink cartridge that printing ink wherein is housed, and have a printing ink conveying device, it is transported to printing ink again on the described printing requirement band section, wherein by ink cartridge, described printing ink conveying device has one and is used for ink coats is taken turns to the inking on the colour band, and a black chipware, it extend into the inside of ink cartridge, so that printing ink is transported on the coated side of inking wheel by ink cartridge.

Solved task of the present invention by such scheme.

By type of service is that a kind of colour band of tape loop has obtained very big advantage, in described tape loop, always have only half to be used to print, obtained the sufficiently long time between the new printing that the printing requirement and the ensuing printing ink at a position of colour band are stained with profit and this position requires, wherein new coated printing ink can be evenly distributed on the colour band.Also promptly need a double colour band number of pass times, require the position to be used to again print up to a printing.On this time, can be distributed to equably at the printing ink that applies on the colour band and to be with, avoided " hot spot " thus, and realized the reduction fully of colour band.The circulation colour band for example can be configured to silent biousse colour band.Silent biousse colour band has the double effective length of general colour band, has prolonged the life-span of ribbon cartridge thus.Because printing ink always only is applied on half of colour band, therefore only applied minimum possible quantity of ink, realized that thus the saving of printing ink is used, it has prolonged the service time of ribbon cartridge again.

The nylon tape that replacement is welded in order to be usually used as the circulation colour band also can use continuous no headband, and it has width double, three times or four times.These no headbands have existed and have had common three or four meters length.Such longer no headband can't obtain at present, because they have been woven to no headband, must be become the width of requirement then by cutting.This no headband is at present not as Mobius strip.The advantage of this no headband is there is not weld seam in system of the present invention.Because this weld seam is the most weak position of colour band, it is at first damaged by the impacting of pin of printhead.Shortcoming is not have continuously the short relatively length of headband.Yet this shortcoming can be avoided like this, that is, printer and ribbon cartridge are designed like this, that is, they hold a wideer colour band.The additional colour band surface that can obtain by this way can be utilized by one of following method:

1) in the obliquity of printer middle sleeve (Patrone), printhead impacts on the colour band top edge on the side of printer sleeve and impact on the lower limb at opposite side (it is possible only having in the ribbon cartridge of wide body) like this;

2) vibrating mechanism is bonded in the printer, and colour band is alternately moved (being possible) up and down in the ribbon cartridge with wide and narrow body during printing like this;

3) vibrating mechanism joins (is possible for the ribbon cartridge with wide and narrow body) in the ribbon cartridge to.

The ink coats device can be arranged in ribbon cartridge, perhaps is positioned at outside the ribbon cartridge.Under latter event, preferred printing ink coating unit removably is fixed on the ribbon cartridge, and for example form is a clamping mechanism, as following also to describe in detail.

Preferably, the inking of coating unit wheel can take off between connection position and a coupling position at one and move, and wherein the inking wheel leaves colour band one segment distance and contact colour band in order to apply printing ink in coupling position in taking off the connection position.Such advantage is, colour band is in transit or when shelving for a long time, can not take off on the connection position by the loading of inking wheel, and therefore can avoid deleterious effects as taking turns the spread of the colour band that causes by inking and rubbing, they for example can cause owing to the vibration in the transportation, and can avoid the colour band fixed bonding on the inking wheel.Ribbon cartridge can have one and takes off multi pack and put for this reason, and it moves to the inking wheel to take off on the connection position and is fixed there.

Ribbon cartridge can have a spring, and it forces the inking wheel to arrive coupling position, causes the automatic and intensity coupling and the even coating of consequent printing ink on colour band uniformly of inking wheel and colour band thus.This spring can for example be positioned in the inside of ink cartridge.

Preferably, take off multi pack and put and can be on ribbon cartridge settle like this, that is, in the time of on being installed in ribbon cartridge, taking off multi pack and put the inking wheel moved to and take off on the connection position, and can be removed so again, make the motion of inking wheel on coupling position be allowed to.

In the time of on being installed in ribbon cartridge, taking off multi pack and put and inking wheel is moved to take off on the connection position.Put and be removed if take off multi pack, then it can make inking take turns to mobile being allowed on the coupling position.

Preferably have a blocking device, it is with drive unit driving wheel locking in other words of ribbon cartridge.

Take off multi pack put and keep away the function of locking device can preferred compositions in a device.

The ink coats device preferably has an ink cartridge, and it is provided with the polyurethane foam of a porous in inside, perhaps is provided with other porous material or porous plastic materials.In order to take out printing ink from ink cartridge, the ink coats device can have a black chipware or another has capillary conveying mechanism accordingly.By the packing of definite material that foams and the packing of determining black core or black chipware, can regulate from black chipware and be transported to the quantity of ink that inking is taken turns, black chipware can have higher packing than the foamed material in the ink cartridge.

Ink cartridge can be the container that can recharge printing ink or prepared Chinese ink, and for example is provided with a fill valve for this reason, and perhaps filler that can be closed has realized that thus expense is saved greatly, needn't change whole box because store when printing ink when exhausting.When can being replaced, the printing ink storaging piece of ink cartridge or ink coats device also can save operating cost.

Ink cartridge can have a geared assembly, and ribbon cartridge can have a joggle piece storing apparatus, and wherein geared assembly provides the clamping that is used for ink cartridge is installed on the ribbon cartridge to be connected with storing apparatus together.Ink cartridge can easily not only externally be installed on the ribbon cartridge especially, but also can manually be taken off from ribbon cartridge again.

The inking wheel of ink coats device can be provided with the toothing of extending transversely on its coating surface.Inking takes turns then that pulse type ground nuzzles up on black chipware, obtain uniform printing ink by black chipware thus and discharge.Also can be by the structural design of toothing, for example the quantity of the tooth on tooth height, odontoid or the unit length influences the quantity of ink of being discharged by black chipware or takes the quantity of ink that inking is taken turns to.

A spring, leaf spring for example can be set, and it is pressed onto black chipware on the coating surface of inking wheel, so that a constant compression force is applied on the black chipware, it makes again discharges uniform printing ink stream by black chipware.

When inking wheel was taking off on the connection position, black chipware left the inking wheel, can stop thus printing ink by black core more or less, the non-discharge of having a mind to or leakage, this discharge or leakage are because the long storage time of ribbon cartridge or produce by capillarity when carrying.

According to a preferred form of implementation, the container of printing ink or prepared Chinese ink can be installed on the outside of ribbon cartridge, also can be removed.Suitable clamping or fast actuation mechanism can be set for this reason.In this form of implementation, the lid of ribbon cartridge has corresponding mounting points, is used to hold fast moving or clamping mechanism, and has the hole that is used to feed black core.The advantage of this form of implementation is that the life-span of ribbon cartridge can be further improved by changing printing ink or prepared Chinese ink box.In this case, the user can change ink cartridge, when the intensity of printing is too low.Because thus will whole colour band but only with its part, be that ink cartridge is changed.Therefore this form of implementation is environment amenable, wherein for replacing, owing to simple fast moving clamping mechanism in other words needs the less time.

Above-mentioned possibility is previously by the Pelikan explanation.

Further favourable expansion of the present invention can be by obtaining in the application documents.

Description of drawings

Other advantage, favourable expansion and application possibility provide in below in conjunction with the detailed description of accompanying drawing to preferred implementing form of the present invention.Wherein:

Fig. 1 be a preferred implementing form of the present invention ribbon cartridge schematically, part is drawn and the view that shortens, see along arrow V direction among Fig. 5;

Fig. 2 is the partial view of Fig. 1, and wherein inking wheel and delivery wheel take off connection each other;

Fig. 3 is another partial view of seeing along arrow III direction among Fig. 1, has inking wheel, a black chipware (Dochtstueck) and an ink cartridge;

Fig. 4 is the partial view of ribbon cartridge among the Fig. 1 that sees along arrow V direction among Fig. 5, wherein only shows the right half part of ribbon cartridge, has closed housing and a driven wheel;

Fig. 5 be one in Fig. 1 cutting line I-I or in Fig. 4 the cutaway view of cutting line IV-IV, have the device of the band drive unit of not loading onto that is used for the locking ribbon cartridge, yet do not draw colour band;

Fig. 6 is the partial view of Fig. 4, yet has the blocking device of loading onto;

Fig. 7 is the cutaway view of Fig. 5, yet has the blocking device of loading onto, and it dissects along cutting line VI-VI;

Fig. 8 is the detailed view of blocking device as shown in Figure 6;

Fig. 9 is the side view that blocking device is seen along arrow VIII direction among Fig. 8 among Fig. 8;

Figure 10 is the view that blocking device is seen along arrow IX direction among Fig. 9 among Fig. 8 and Fig. 9;

Figure 11 is the partial view of colour band of the local A of Fig. 1;

Figure 12 is the view of the local A that sees along direction XI among Figure 11;

Figure 13 a and 13b are at prior art ribbon cartridge and the chart that compares and measures the result that carries out on ribbon cartridge of the present invention.

The specific embodiment

Fig. 1 shows the schematic partial view of the ribbon cartridge of preferred implementing form according to the present invention, it has a housing that for example is made of plastics 1 basically, a microscler colour band 2 that is installed in the housing 1, one is used to make colour band 2 motions or carries its drive unit, an ink coats device 4,6 that is used for printing ink 5 inking on

colour band

2,7,9, also have a colour strip storage 3 and first transfer 40 and one second transfer 41 that is used for colour band 2.Ribbon cartridge for example can be used in other the printer with mechanical type beating unit of a point-needle type printer, continuous rotating drum printer or.

Part 45 at the bottom of the housing 1 of ribbon cartridge has one, in order to see the inside, it opens wide in Fig. 1, and has a lid 46, and it is shown in Figure 5.That is to say that housing 1 is illustrated from its back side 12 in Fig. 1, and positive 13 (referring to Fig. 5) are adjacent with the printhead of a printer, when described box is installed in the printer.Therefore colour band 2 moves by the front 13 of housing 1 on printhead in print procedure.A segment section (local A) of colour band 2 draws at the center in Fig. 1, stretches on the front 13 of housing 1.

Colour band 2 is installed in the ribbon cartridge with form or a silent biousse loop line form of a silent biousse (moebiussch) band, and a Mobius strip can produce according to following manner: at first that two ends of colour band 2 are folded mutually by placing.The front of these end regions of colour band 2 or dorsal part are towards identical direction.This colour band does not reverse.Now the end regions of the second end of colour band 2 reverses like this with respect to the end regions of first end, make the second end with the front of colour band towards the front of the end regions of first end, also promptly the front of two ends mutually towards.Under this state, that two ends of colour band are folded mutually bonding or fold with overlapping and lean on and bonding by ground.The silent biousse that 2 of the colour bands of present circulation have one 180 degree reverses.This means that in silent biousse colour band 2 in the zone of reversing, top edge of the second end of colour band is aimed at a lower limb of first end, and a lower limb of the second end is aimed at a top edge of first end conversely.

Colour band 2 for example is made up of a kind of nylon tape of braiding, and it is stained with profit and goes up a kind of printing ink, for example prepared Chinese ink.

As appreciable in Fig. 1, be used for that printing ink 5 is coated to ink coats device on the colour band 2 and comprise an ink cartridge 4, a black chipware 7 and an inking wheel 9.

A filter 6, the object of similar sponge in other words have been installed in the inside of ribbon cartridge 4, and it fills up the inner chamber of ink cartridge 4 basically.This filter 6 for example can be made of a kind of polyurethane foam of porous, and it has held the deposit structure of a printing ink 5.

Pass a box hole from circumferential closed ink cartridge 4 and stretch out microscler black chipware 7, it also stretches in filter 6 in ink cartridge 4 inside.By the capillary force that works in black chipware 7, printing ink 5 upwards rises in black chipware 7 from filter 6 and comes out to arrive black chipware 7 free ends in ink cartridge 4 outsides.

Inking wheel 9 has a wheel hub 15.1, its stretching, extension between a flat lid 46 of diapire 45.1 of 1 end of housing part 45 and housing 1.The wheel hub 15.1 of inking wheel 9 with an end in an elongated hole of diapire 45.1 and can be rotatably and can laterally be bearing in vertical hole to motion in other words movably in an elongated hole of lid 46 around hub axis with another end.At inking wheel 9 one of laterally moving of inking wheel 9 takes off between connection position and a coupling position and carries out.Take off connection position (referring to the position at the wheel of the inking shown in Fig. 2 and Fig. 7 9) at this, inking wheel 9 leaves the delivery wheel 8 of the drive unit of black chipware 7 and housing 1.On the contrary at coupling position, inking wheel 9 contacts (take turns referring to the inking shown in Fig. 1 and Fig. 59 position) with delivery wheel 8 and black chipware 7.The wheel hub 15.1 of inking wheel 9 is configured to from the front 13 of housing 1 to the back side 12 of housing 1 as general hollow wheel hub.

Inking wheel 9 has two wheel rims (referring to Fig. 5) that are parallel to each other and stretch on circumference of hub, they each other by a slot in other words a groove separate, stretch at the center of described groove on the circumference of hub of inking wheel 9.Settled a tire of being made by plastics, solid rubber or soft rubber (Reifen) 31,31.1 on each wheel rim 15, it has cross section rectangle or foursquare.Profit is stained with from the printing ink 5 of black chipware 7 in the surface of having only tire 31 coated side in other words.In addition, the surface of tire 31 can be provided with a toothing 30, and it stretches along whole surface transverse to the traffic direction perpendicular to inking wheel 9 in other words.As seen from Figure 3, when inking wheel 9 was in its coupling position, black chipware 7 only contacted with the coated side of tire 31.China ink chipware 7 can be pressed onto on the coated side of tire 31 of inking wheel 9 by a spring.If inking wheel 9 is in coupling position and rotation, the toothing 30 of tire 31 pulsed ground on black chipware 7 slides along it, thus, the printing ink 9 that rises that hoists in black chipware 7 is discharged and is arrived on the coated side of inking wheel 9, and is coated on the surface of colour band 2 by it.

The drive unit of ribbon cartridge has a driving wheel 11, and it constitutes as gear, and externally is positioned in (referring to Fig. 4 and Fig. 5) on the back side 12 of covering ribbon cartridge on 46, and this drive unit also has a delivery wheel 8 in the housing 1 that is placed in ribbon cartridge.This delivery wheel 8 has a hollow wheel hub 8.1, and it stretches between the diapire 45.1 of housing 1 and lid 46, and with its two overhang brackets in the mating holes of diapire 45.1 and lid 46, can be around the axis rotation of delivery wheel.The axis that the axis of delivery wheel 8 is parallel to inking wheel 9 stretches.Driving wheel 11 is inserted into the hollow wheel hub of delivery wheel 8 with the back side 12 of a hollow wheel hub protuberance 17 from housing 1, has realized the connection of the transmission power between driving wheel 11 and delivery wheel 8 thus, and their mutual axis are settled in the same manner.The drive unit that driving wheel 11 is printed machine drives, and has used described ribbon cartridge in this printer.

Delivery wheel 8 has two wheel rims 14 that are parallel to each other and stretch on circumference, they each other by a slot in other words a groove separate.Settled a tire 14.1 of being made by plastics, solid rubber or soft rubber on each wheel rim 14, it has rectangle or foursquare cross section.

Inking wheel 9 is pressed on the delivery wheel 8 by means of a spring 10.This means that colour band 5 stretches between the tire 31,31.1 of the tire 14.1 of delivery wheel 8 and inking wheel 9, wherein the surface of tire is because acting on pressure under of spring 10 contacts with colour band 2, and inking is at this moment taken turns 9 and is in its coupling position.

If driving wheel 11 rotations, delivery wheel 8 also rotates, and this delivery wheel is connected with driving wheel 11 transmission power ground.Rotatablely moving of delivery wheel 8 also is delivered on the inking wheel 9.The direction of rotation of delivery wheel 8 and inking wheel 9 is by the corresponding arrow explanation among Fig. 1.The direction of rotation of driving wheel is by the corresponding arrow explanation among Fig. 4.

First transfer 40 will rotate to horizontal level from the upright position from the colour band 2 in ribbon cartridge front 13, and it is fed to delivery wheel 8 (referring to Fig. 1) on this position.Therefore transfer 40 makes that colour band 2 carries out the rotation of one 90 degree.Traffic direction along colour band 2 is seen, after colour strip storage 3, in ribbon cartridge, be provided with one second transfer 41, it revolves the colour band 2 that arrives again to turn 90 degrees from horizontal level and is turned back to the upright position, colour band 2 arrives not only the front 13 of ribbon cartridge and therefore also in the upright position but also can arrive the printhead of printer, described ribbon cartridge has been installed in this printer in the upright position like this.Therefore between first transfer 40 and second transfer 41, colour band 2 is stretching on horizontal level.

Traffic direction along colour band 2 sees that after delivery wheel 8, colour band 2 passes the slit and enters colour strip storage 3, and it is designed to the chamber.In colour strip storage 3, colour band 2 stretches with a plurality of loop lines of following in succession.The silent biousse that also has circulation colour band 2 in colour strip storage 3 reverses.

In Fig. 5,7 to 10, illustrated in the ribbon cartridge of easily to pack into and the blocking device 18 that can pull down from it again, it mainly has a plate 22, one and has the pin 20 on top of end that a taper attenuates and circular cross section and the pin 19 of a bottom, and the back side of their slave plates 22 is vertically outstanding.The pin 19 of this bottom has a upper segment 19.1 and a lower section 19.2, and described upper segment has the cross section of constant general triangular, and described lower section has semicircular cross section, and described lower section is shunk towards the free end taper ground of lower pin 19.If blocking device 18 is inserted the ribbon cartridges from the ribbon cartridge back side 12,20 of the pins on top slip in the hollow wheel hub protuberance 17 of driving wheel 11 and are engaged in wherein.What simultaneously, the pin 19 of bottom slipped into inking wheel 9 can be in the approaching hollow wheel hub 15.1 in the back side 12 of ribbon cartridge.When slipping into hollow wheel hub 15.1, the lower section 19.2 that the taper of lower pin 19 is extended is passed inking wheel 9 against the pressure of spring 10, arrive it up to inking wheel 9 and take off the connection position, on this position, lower pin 19 fully has been pushed in the hollow wheel hub 15.1 of inking wheel 9.When lower pin 19 being pushed in the hollow wheel hub 15.1, the section 19.1 on top is engaged between two adjacent teeth of driving wheel 11 simultaneously.The pin 19 of bottom is coupled in the trans D of the elongated hole in housing 1 lid 46.When blocking device 18 was packed into fully, inking wheel 9 takes off on the connection position at it to be fixed by the pin 19 of bottom, and blocking device 18 is put and worked as taking off multi pack thus.Cover in 46 the elongated hole because the pin of bottom 19 is coupled to, and the upper segment 19.1 of the pin 19 of bottom is engaged in the toothing of driving wheel 11, blocking device 18 no longer can be rotated motion, thus also locking rotatablely moving of driving wheel 11.Therefore blocking device 18 also has the function that drives locking.

If blocking device 18 is for example taken out from ribbon cartridge again after ribbon cartridge is transferred, spring 10 moves into its coupling position again with inking wheel 9, and this driving wheel 11 and therefore this delivery wheel 8 be released and can be rotated motion.

Illustrate the feeding of the colour band 2 of ribbon cartridge when during colour band 2 is fully by twice, printing operation below.

For example initial by the state of the following stated, ribbon cartridge has been placed in the printer, and has been ready to, and that is to say that blocking device 18 has been removed.The beating unit of printer impacts in print procedure on the temporary transient side that is positioned at dorsal part 32 in the print area of printhead of colour band 2 (at this referring to Figure 11 and 12, they show the colour band 2 in the print area), thus, the printing ink 5 that is in temporarily on the side 33 of front side is passed on the paper, so that produce a symbol on paper.Lost being positioned at position on the side 33 of front side at colour band 2 and being known as to print and requiring the position of printing ink 5 owing to print a symbol.If consider preferred implementing form of the present invention described here, this printing requires the position only to be positioned at the band section 35 of a bottom of colour band 2 in other words in half one of a bottom when printed symbols, this colour band can be divided into the band section 35 and 34 of two identical sizes, as illustrating by dotted line among Figure 11.The width of colour band 2 correspondingly is divided into the band section 34 and 35 of two identical sizes therewith, and their width dimensions is effectively printed highly identical with the character height of the maximum possible of printhead respectively at least in other words.By the conveying or the feeding by drive unit generation effect of colour band 2, described printing requires the position then to shift to first transfer 40, and it revolves colour band 2 to turn 90 degrees by the upright position and enters horizontal level.Thus, this printing requires the position surperficial in other words directed like this towards the coated side of the tire 31 of inking wheel 9, that is, this printing that printing ink 5 is applied to colour band 2 requires on the position, described printing ink is by the coated side of black chipware 7 arrival tires 31, and described thus printing requires the position to be stained with profit by printing ink again.

Because the further feeding of colour band 2, the printing of being stained with profit now requires the position then to arrive colour strip storage 3.By colour strip storage 3 time, the described printing of reduction requires the position to be subjected to silent biousse to reverse and finally arrive again on the front 13 of ribbon cartridge by second transfer 41 after colour band 2 is turned back to the upright position from horizontal level, and finally arrives print area again.Yet, reverse by silent biousse, the printing of being stained with profit require the position in print area, be on the side that temporarily is arranged in dorsal part 32 of colour band 2 now colour band 2 on band sections 34.The first time operation of colour band 2 of being through with is thus passed through.

Because the band section 34 on top is not subjected to printing requirement when printing, described printing of being stained with profit requires the recovery at position further not carry out intrusively.When the second time of the colour band of following 2, operation was passed through, described printing of being stained with profit requires the position after passing through first transfer 40, taken turns 9 orientations with respect to inking like this, make it now not contact with the coated side of tire 31, but only contact inking wheel 9 another be not stained with the tire 31.1 of profit.In this stage, require no longer to carry out on the position further ink coats in described printing of being stained with profit.Then, described printing of being stained with profit requires the position to move through colour strip storage 3 again, is subjected to a silent biousse twisting action again at this, and finally arrives print area again after turning to by second transfer 41.Yet now operation for the second time pass through last, described printing of being stained with profit requires the position to be in again on the following band sections 35 of colour band 2 in the print area temporarily to be on the side 33 of front side.It is recovered fully for the printing of further following now, and needn't worry when printing, to occur " hot spot " effect, because require the printing ink that applies on the position can be evenly distributed on the surface of colour band 2 in by the time in this printing in the operation of the almost twice of colour band 2.

In Figure 13 a and 13b, illustrated for ribbon cartridge in the prior art by the obtainable improvement of ribbon cartridge of the present invention.In this test, after having printed 500,000 printed symbols, measure the printing contrasting signal of two ribbon cartridges respectively.In the 2nd hurdle of Figure 13 a table, the printing contrasting signal of ribbon cartridge in the prior art has been described, the described printing contrasting signal of ribbon cartridge of the present invention has been described in the 3rd hurdle.Test is to carry out on the Wincor-Nixdorf NP01 type printer in model, and controller is ND97, has S29 prepared Chinese ink, Mo Xin 300 and stopper (Tampon) 100.As from table, finding out that printing contrast value measured in ribbon cartridge of the present invention is obviously higher.In test, in the ribbon cartridge of prior art, in initial test period section, determine the hot spot effect, till printing 4,000,000 characters, and in the ribbon cartridge in the present invention, only in 500,000 printable characters, determining very little hot spot effect, in Figure 13 a, use ^*The appearance of expression hot spot, the appearance of described very little hot spot is used ^*Expression.

Test effect also can clearly illustrate in the curve of Figure 13 b, wherein on the reference axis to the right the quantity of printable character has been described, and the printing contrasting signal has been described on the vertical coordinate axle.Measured value is by approximate by a polynomial curve, and these values illustrate by corresponding little square frame.

Claims

1, ribbon cartridge, in impact printer, has a colour band (2), it is the shape of tape loop, wherein said band or be configured to Mobius strip or have the double width of a normal tape at least, the band section (34 that wherein has at least two identical sizes, 35), and always these are with section (34 in printing at that time, 35) in only one be subjected to printing requirement, and, this ribbon cartridge has an ink coats device (4,6,7,9), it is coated to printing ink (5) again the band section (34 that is subjected to printing requirement at that time of colour band (2), 35) on, wherein, described ink coats device has an ink cartridge (4) that printing ink (5) wherein are housed, and has a printing ink conveying device, it is transported to printing ink (5) again on the described printing requirement band section by ink cartridge (4), it is characterized in that described printing ink conveying device has one and is used for (9) are taken turns in the inking that printing ink (5) is coated on the colour band (2), and a black chipware (7), it extend into the inside of ink cartridge (4), so that printing ink (5) is transported on the coated side of inking wheel (9) by ink cartridge (4).

2, according to the described ribbon cartridge of claim 1, it is characterized in that, inking wheel (9) can take off between connection position and a coupling position at one and move, wherein inking wheel (9) leaves colour band (2) described taking off on the connection position, and contacts colour band (2) to apply printing ink (5) on described coupling position.

3, according to the described ribbon cartridge of claim 2, it is characterized in that having a spring (10), it forces inking wheel (9) to enter coupling position.

According to the described ribbon cartridge of claim 1, it is characterized in that 4, ribbon cartridge has one and takes off multi pack and put, it moves to inking wheel (9) to take off the connection position and be fixed on the there.

5, according to the described ribbon cartridge of claim 4, it is characterized in that, taking off multi pack puts and can be installed on the ribbon cartridge, when wherein taking off multi pack and putting on being installed in ribbon cartridge, inking wheel (9) is moved to take off the connection position, the described multi pack that takes off is put and can be taken off from ribbon cartridge, makes it can move to coupling position so that discharge inking wheel (9).

6, according to the described ribbon cartridge of claim 1, it is characterized in that having a mobile drive unit of colour band (2) that is used to make ribbon cartridge.

7, according to the described ribbon cartridge of claim 6, it is characterized in that having a blocking device, it is with drive unit locking or locking.

8, according to the described ribbon cartridge of claim 5, it is characterized in that having a device (18), it is carried out simultaneously and takes off multi pack and put function with blocking device.

According to the described ribbon cartridge of claim 1, it is characterized in that 9, the described ink cartridge (4) of ink coats device is provided with the polyurethane foam of a porous in inside.

According to the described ribbon cartridge of claim 1, it is characterized in that 10, the described ink cartridge (4) of ink coats device can be again by filling printing ink (5).

According to the described ribbon cartridge of claim 1, it is characterized in that 11, the described ink cartridge (4) of ink coats device can be replaced.

12, according to the described ribbon cartridge of claim 11, it is characterized in that ink cartridge has a geared assembly, ribbon cartridge has a joggle piece storing apparatus, and this geared assembly provides a clamping to be connected with storing apparatus jointly, is used for ink cartridge is installed to ribbon cartridge.

According to the described ribbon cartridge of claim 1, it is characterized in that 13, the inking wheel (9) of ink coats device has a coated side that has toothing (30).

14, according to the described ribbon cartridge of claim 1, it is characterized in that having a spring, it is pressed in black chipware (7) on the coated side of inking wheel (9) by a spring.

According to the described ribbon cartridge of claim 2, it is characterized in that 15, when inking wheel (9) is in when taking off on the connection position, black chipware (7) is away from inking wheel (9).