Background technology
At present the print cartridge of desktop type printer mainly comes storage ink with sponge or does not have sponge and control ink by the ink outlet port valve and guarantee that ink is unlikely from the spray orifice of printhead under nature and overflow.
This print cartridge of two types has following shortcoming:
1, there is the print cartridge of sponge to control printing, is the patent that EPSON company enjoys, but has the ink of too many remnants on sponge, cause certain waste and be unfavorable for environmental protection by capillaceous being used for of sponge storage ink and sponge.
2, the print cartridge of no sponge is implemented in the print procedure by the check valve on the ink channel, and ink outlet port forms certain negative pressure and guarantees to print.This is the patent of EPSON company equally.Because height that check valve is provided with and ink channel design equally can residual more inks.
3, have sponge can increase cost, valve arrangement is realized its technology difficulty.
Content of the present utility model
The purpose of this utility model is to provide a kind of a kind of universal printer print cartridge of simple, universal, ink supply stably.Be common to the desktop type minicomputer print cartridge that sponge and no sponge-type are arranged in the market.
Above-mentioned purpose of the present utility model adopts following technical scheme to be achieved:
A kind of universal printer print cartridge comprises ink storage chamber and pressure adjustmenting mechanism, it is characterized in that: described ink storage chamber is the ink storage chamber that is in negative pressure state, described pressure adjustmenting mechanism be arranged in the ink storage chamber or cover on.
According to the utility model, pressure adjustmenting mechanism has the valve membrane plane of stably controlling negative pressure.
According to the utility model, described pressure adjustmenting mechanism comprises spring, front valve shell or ink storage chamber, valve film, rear valve body or dome, passage, air groove, one spring is arranged between valve film and the front valve shell, have an air groove on the rear valve body, the middle part of groove bottom is provided with the shrinkage pool of a projection, have the small sircle hole of a tool band chimb on the valve film, this circular hole is withstood in the shrinkage pool of rear valve body by spring.
According to the utility model, described pressure adjustmenting mechanism is arranged in the ink storage chamber or on the cover, cover or ink storage chamber have a passage to communicate with atmosphere.
According to the utility model, the ink outlet port place of described ink storage chamber is provided with sealing ring, and the inner ring place of sealing ring is provided with a ball sealer, and the sealing ball is withstood on it outside inner ring of sealing ring by a spring, passage is a long passage, at described passage leakage-preventing mechanism is set.
Flow to the least significant end that ink port is arranged at print cartridge of advancing of ink outlet port passage, progressively hierarchically ink and air separation, before assurance was printed and finished, air can not flow to ink outlet port to ink in flowing to the process of ink outlet port.
The utlity model has following advantage:
1, the utility model can guarantee that whole ink storage chamber all is in the more constant negative pressure state of a tool, so that more stable control print procedure.
2, it is bigger to be positioned at the valve membrane plane area of pressure adjustmenting mechanism, can more stably control negative pressure, ensure to a greater extent that ink can continue when printing, toward print head stably.
3, do not need porous material, can increase the volume of ink storage chamber and reduce residual ink.
4, the ink outlet port of ink storage chamber or venting channels increase mechanism, fundamentally solve the problem of ink leakage.
The specific embodiment
Below in conjunction with the specific embodiment in detail the utility model is described in detail
As figure, Fig. 2, shown in Figure 3: the utility model comprises ink storage chamber and pressure adjustmenting mechanism, pressure adjustmenting mechanism comprises spring 5, front valve shell or ink storage chamber 1, rear valve body or dome 6, passage 2, air groove 3, pressure adjustmenting mechanism be arranged in the ink storage chamber or cover on, one spring 5 is arranged between valve film 5 and the front valve shell 1, have an air groove 3 on the rear valve body 6, the middle part of groove bottom is provided with the shrinkage pool of a projection, have the small sircle hole of a band chimb on the valve film 5, this circular hole is withstood in the shrinkage pool of rear valve body 6 by spring, pressure adjustmenting mechanism is installed on ink storage chamber or the cover, and cover or ink storage chamber have a passage 2 to communicate with atmosphere.
On the other hand, the ink outlet port place of ink storage chamber is provided with sealing ring 1, and the inner ring place of sealing ring 1 is provided with a ball sealer 2.Sealing ball 2 is withstood on it outside inner ring of sealing ring 1 by a spring 3.Cover or ink storage chamber and atmosphere have a passage, and passage is a long passage, and passage is provided with anti-leakage mechanism.