Publish Time: 2021-09-06 Origin: Site
A kind of negative pressure control system including - producing device, used to produce negative pressure value: at least - on-off device, described in the on-off device includes at least one import and export, is used to connect or cut off negative pressure: at least one deputy cartridges, described vice cartridge includes an air inlet, a mouth into the ink and a mouth, the ink used to supplement the ink and the nozzle ink; Wherein, the negative pressure generating device is connected with the inlet of the on-off device through a trachea, and the outlet of the on-off device is connected with the air inlet of the auxiliary cartridge through a trachea, and the ink outlet of the auxiliary cartridge is connected with the ink inlet end of the nozzle.It is of great importance in the process of technology development.
Here is the content list:
The background of VDPS printing system
The characteristics of VDPS printing system
The background of VDPS printing system
Ink-jet printer is drops by nozzle jet in print media, images or text printing Existing ink-jet printers have to continuous supply ink cartridges, vice ink cartridge installation height is usually higher than that of nozzle, influenced by gravity, the ink can be naturally from the cartridge into the shower nozzle In order to ensure the quality of printing, asked the printer according to need a steady fast printing Appropriate amount of ink to the nozzle, the prior art uses negative pressure ink supply, that is, the upper end of the secondary cartridge is connected to a negative pressure system, through the control of negative pressure to balance the weight of the ink, ink supply to the nozzle on demand If the negative pressure is too low, the ink flows down continuously under the action of gravity, and the ink supply is too much, resulting in the drip of ink on the nozzle: if the negative pressure is too high, the ink in the nozzle reflux, the ink in the secondary cartridge can not flow to the nozzle in time and in proper amount, resulting in the nozzle without ink to spray, the ink is broken, affecting the printing quality.
The negative pressure generating device is used to generatethe negative pressure of the set value: at least one break device, the on-off device comprises at least one inlet and an outlet, which is used to connect and cut off the negative pressure: at least a pair of ink cartridge, the pair of ink cartridge comprises an air inlet, an ink inlet and an outlet. Used to replenish ink and supply ink to the nozzle; Wherein, the negative pressure generating device is connected with the inlet of the on-off device through a trachea, and the outlet of the on-off device is connected with the air inlet of the auxiliary cartridge through a trachea, and the ink outlet of the auxiliary cartridge is connected with the nozzle.